Picture a second-year student the night before a midterm, scrolling for a clean summary of the exact course you aced last year. They are ready to pay for one. The only question is whose notes they buy.
You know how that student feels. You remember the panic, the late-night highlighter, the textbook that cost more than your weekly groceries. Maybe you are still living it: a part-time shift that eats your study time, rent that lands the same week as finals, a bank app you open with one eye shut. And the internships that might fix it all want experience you have had no time to get.
Every term a new cohort sits the same course with the same syllabus, and the sellers who list first collect the reviews that push them up the search results. AI can spit out a bloated generic guide in seconds now, which makes sharp, tested notes from someone who actually sat the exam stand out even more. That edge belongs to whoever posts while the course is still fresh in their head.
The folder from the course you scored highest in is already the product. A single study guide sells for $5 to $15, and a full course bundle of notes plus exam reviews goes for $20 to $40. Monthly earnings on this path run between $300 and $3,000, on a startup cost of $0 to $50, since the writing is done and the money goes on a cover or a cleaner PDF export. Give it 1 to 3 weeks before your first sale lands.
Today, open that folder and read the first page the way a stranger would, someone who never sat in your lecture.
Here is what you will be selling. Your professor's slides and photocopied textbook pages stay out of it. What you sell is your own original study material: the summaries you wrote, the flashcard decks you built, the study guides you made at midnight. You package them into digital products, and the students taking the same courses next semester will gladly pay for them.
Think back to your own first weeks of a hard semester. You were overwhelmed, and so is every student behind you. The average college student takes 4-5 courses per semester, each with hundreds of pages of reading, lectures and assignments. They simply do not have time to build complete study materials for every course. You did, once. That gap is your market. Which course did your friends beg to copy your notes for? Start with that one.
That is why anyone buys. Now comes your first real decision: which of your files can stand on their own, and which only make sense sold together?
This is your core product. Take your notes from a course you did well in, reorganize them into a logical study flow, add section summaries and highlight the key concepts, then export a clean PDF.
Anki flashcard decks are especially valuable if you study medicine, law or science, where memorization carries the grade. A student will happily pay you $5-$10 for a well-made deck to save the 10 hours it would take to build their own.
This is the fastest-growing category, and you probably already use Notion yourself. Students run everything there: semester planning, assignment tracking, note-taking and project management. If you design a Notion template that solves a specific student problem, it can sell well.
You can add 1-on-1 tutoring as a service layer on top of your digital products. Some students who buy your study guide will want more help, and they will book a session with you.
You know exactly where your first money from notes would go. If your guides and a few tutoring hours at $25 to $50 an hour leave you $300 in a month, you could cover your own textbooks and phone bill and tell your parents they can send less this term. Picture that phone call home. It is worth the evening it takes you to tidy one set of notes.
This is the dominant marketplace for student study notes, and its big gift to you is built-in search traffic from students hunting for specific course materials. You upload your notes, set a price, and Stuvia handles payment and delivery. They take a commission (roughly 30%), and for a beginner the organic traffic is worth it.
You keep more here than on Stuvia (Gumroad takes 10% plus $0.50 per direct sale), but you have to bring your own buyers. It works best alongside your TikTok or Instagram, where you link straight to your Gumroad shop.
Etsy may surprise you. Students search it for "nursing study guide" or "organic chemistry flashcards" and find digital downloads. Its search works much like Stuvia's, so specific, keyword-rich titles are how a student finds you. What exact words would you have typed the night before your own final? Use those words in your title.
Your file is finished, priced and sitting on a storefront. What decides your first sale is whether a student who needs it ever sees it.
TikTok and Instagram are where most note sellers find their buyers. The StudyTok and StudyGram communities are huge, with millions of students watching study content every day. You are probably one of them already.
So people are arriving at your listing. Whether they buy comes down to your preview pages: the fonts, the heading styles, the white space.
Your notes need to look polished enough to justify the price. Students will not pay you for handwritten scans or a messy Word document. Would your best set of notes pass if you saw only its first two pages as a buyer? If not, those two pages are where your design time goes first.
- Canva: Create cover pages, section headers, and formatted study guides. Canva has education-specific templates.
- Notion: Build templates directly in Notion and sell them as duplicatable pages.
- Google Docs/Slides: Create templates that students can make copies of.
Design principles:
- Keep formatting consistent throughout (same fonts, colors, heading styles)
- Make the hierarchy clear: headings, subheadings, key terms highlighted
- Add visual elements: diagrams, comparison tables, flowcharts
- Leave white space so it reads easily; resist cramming text onto every page
- Give it a professional cover page with the course name, contents and your branding
Growing Your Notes Business
By now you have one product that sells to strangers. Getting from there to $300 a month is a different job, and it starts here.
Build your catalog over time. How many courses have you already finished with notes worth keeping? Every semester you finish hands you new inventory. Upload a study guide for every course you take. Over 4 years of college, you can build 30-40+ products that keep selling to new students.
Reach beyond your own courses. Once your format is proven, team up with students in other majors. They bring the content, you handle design and marketing, and you split the revenue.
Make evergreen products. Course-specific notes are great, and they only reach students at one school. Broader products like "MCAT Biology Study Guide" or "CPA Exam Summary Notes" reach a national audience and sell for more.
Build your email list. Collect emails from buyers and from people who grab your free content. Launch each new product to your list every semester. Someone who bought from you once is far easier to sell to again.
Carry it past graduation. Many successful note sellers move into full-time tutoring, course creation or educational content after they graduate. The audience and reputation you build as a student come with you.
This is one of the few side hustles where you have already done the work. You studied the material. You made the notes. You passed the class. Now you are packaging that effort so the next student can do the same. Start with what you have, sell it where students are looking, and use TikTok to tell them it exists.
2026 Market Snapshot
When you sell study notes, you are standing where two categories tracked by independent market research meet: digital products and micro-education. The digital products report shows you the ceiling (knowledge that does not scale 1:1 becomes a scalable product). The micro-education report shows you where demand is heading: shorter, focused, mobile-friendly lessons that fit how students actually pay attention. If you are college age, study notes are the most natural way into either one.
- Independent market research cites Josh W. Comeau making "$550,000" with CSS for JavaScript Developers. Proof that a single course-style digital product can keep earning for years
- Andrew Kamphey (Better Sheets) generated "$200,000+" selling spreadsheet templates at up to $29/month per independent market research
- Gergely Orosz made "$14,000" with The Tech Resume by crowdsourcing recruiter insights. You can run the same playbook for "ace this exam" guides
- Affiliate commissions of 50-70% are common in digital products (independent market research cites Divjoy, How to Sketch, Wicked Templates), which opens the door to peer and student affiliate networks for you
- Independent market research highlights micro-education's lesson: shorter lessons boost completion rates and improve retention. Your exam-prep guide that respects a tired student's attention will outsell a sprawling 200-page summary
Key Players to Watch
Both figures are self-reported, cumulative rather than annual, and unverified here.
Here are the digital product creators and micro-education operators that independent market research cites, plus the platforms that move student notes. These are the people and tools worth learning from.
- Stuvia: dominant marketplace for student notes with built-in buyer traffic
- Gumroad: 10% plus $0.50 per direct sale, the default for direct-to-audience sales (independent market research cites Pieter Levels' MAKE on Gumroad)
- Etsy: surprisingly strong for course-specific PDFs and Notion templates
- Notion: both a tool and a marketplace; templates are a top-growing category
- Anki: gold-standard flashcard format for medical, law, and science buyers
- Josh W. Comeau: $550K with CSS for JavaScript Developers, the digital product blueprint independent market research highlights
- Andrew Kamphey (Better Sheets): $200K+ from spreadsheet templates with recurring pricing
- Arvid Kahl: Zero to Sold sold 350 copies in 24 hours via audience-led launch
- Jane Portman: presold UI Audit for $3,500 (validation playbook for any niche)
- Rob Hope (Landing Page Hot Tips), Maisha L. Cannon (The Collab Lab), Marketing Max (Growth Marketing 101): micro-education operators independent market research names
- Karthik Sridharan (Flexiple): 150,000 visitors in 24 hours from free side-project marketing. You can run the same pattern with a free study guide drop
- Dan Koe: articulated the micro-education business model independent market research references
- Kajabi, Teachable, Thinkific: platform options for when you grow beyond PDFs into structured courses
- CyberLeads, ChatGPT Prompts (1,000+ prompts): examples of database-style digital products you could copy with a curated study database
Predictions for 2026-2027
- Throughout 2026: AI-assisted study guide generation collapses creation time, and independent market research's micro-education insight still holds. Your short, focused, well-designed guide beats an AI-bloated 300-page dump
- Late 2026: Personal AI assistants become "personal consultants" (independent market research names Jarvis Invest, FP Alpha, FinChat.io, Wally). If you layer AI tutoring on top of your static PDFs, you can charge premium prices
- Early 2027: Affiliate networks arrive in the student notes space, with established sellers offering 50%+ commissions to TikTok creators who promote their guides. It mirrors the Divjoy/Wicked Templates pattern
- Mid-2027: Crowdsourced study products (independent market research cites Pieter Levels crowdsourcing MAKE chapters) become a category. Think group-authored study guides for high-enrollment courses, with revenue splits
- Late 2027: Micro-consulting becomes a service layer: short, paid Q&A calls that independent market research tracks (Harry Roberts, Kevin C. Whelan model) become a standard upsell alongside your study guides
Read that timeline as a warning. As AI floods the market with cheap generic summaries, students will lean on sellers they already trust, with ratings and real exam results behind them. Those ratings take a term or two to build. The people listing this semester will have them by the time everyone else notices the market.
Emerging Opportunities
- Course-specific bundles: putting notes, flashcards and practice questions for one course together at $20-$40 outperforms selling them one by one (it mirrors the bundling pattern independent market research highlights)
- Email courses for exam prep: independent market research names Laurie Wang, David de Céspedes, and Josh Kubicki as email course operators; your "10 days to ace your MCAT bio" follows the same pattern
- Lifetime deals on semester planners: independent market research cites $89-$299 lifetime deals (Pixel True, No Code MBA, Landingfolio); students who come back every semester respond well to one payment to "use forever"
- Community memberships: Trends PRO and Lenny's Slack-style paid communities work for cohort-based study groups; you could run a Discord with verified upperclassmen and graduates at $10-$20/month
- Side-project marketing: release a free study tool people want to share (GPA calculator, citation generator, study-time tracker) the way Flexiple released free illustrations; it turns cold traffic into paying customers
Picture it. You build a free GPA calculator or study-time tracker, and strangers actually use it. That is a real product, and you made it. The day a first-year you have never met buys your organic chemistry guide because your tool helped her, you are a founder in a small way, and your raw material was coursework you were doing anyway. Ship one small tool before exams.
Common Objections & Counterarguments
- "Digital products are easy to copy. There's no moat." Independent market research's answer applies to you directly: build on your personal brand, your own experience and excellent customer support. A study guide tied to your StudyTok presence is much harder to copy than an anonymous PDF.
- "Study notes get out of date fast." Independent market research's counter for digital products: offer evergreen products, use lifetime deals to raise perceived value, or sell updates as new products. Foundational courses (anatomy, calculus, accounting principles) barely change from year to year, so start there.
- "It's hard to learn an entire course in N hours from a study guide." Per independent market research's micro-education report, that depends on how complex the subject is. Most of your buyers are reviewing for an exam, though. They are using your guide to revise, and for them the time saved is real.
- "Piracy will kill margins on student notes." It is a real risk for any digital product, per independent market research. Here is how you soften it: bundle tutoring (nobody can pirate a live session), use Stuvia/Gumroad watermarking, and accept some leakage as the cost of getting your work out there.
How this became a business
You have probably sold, swapped or lent notes to the person sitting next to you. Universities have run on that for centuries. What turned it into a business with fee schedules, payout rails and tax reporting is a specific chain of changes, most of them from the last four years. Knowing them helps you see where you stand.
April 11, 2022: the marketplaces repriced. Etsy's own annual report says it plainly: "Effective April 11, 2022, we increased our seller transaction fee from 5% to 6.5%." That one change told you something useful as a digital seller. General marketplaces had worked out that digital downloads were a high-margin line, and they were going to charge for it. The same filing shows Etsy Payments processing fees at the time "typically varies between 3.0% and 4.5% of an item's total sale price." By the FY2025 filing, submitted on 19 February 2026, the same sentence reads "typically vary between 3.0% and 6.5%." The cut they take from you went up, quietly, twice.
28 June 2022: England drew a legal line, and put study guides on the safe side of it. The Skills and Post-16 Education Act 2022 created an offence in section 27: "It is an offence for a person to provide, or arrange for another person to provide, in commercial circumstances, a relevant service for a student in relation to a relevant assignment." You might read that and worry it covers everything you plan to sell. It does not. Section 26 defines a relevant service as "a service of completing all or part of an assignment on behalf of a student where the assignment completed in that way could not reasonably be considered to have been completed personally by the student," and section 26(4)(b) carves out material that is "included in a publication that contains other educational or training material and is available generally (such as a text book or study guide)." The law names study guides as something it leaves alone. That distinction (general study material versus completing a specific assignment) now holds up this whole business, and you can point to a dated statute for it.
August 2024: search stopped sending traffic to the big players. Chegg's annual report describes the moment in its own risk section: "In August 2024, Google began to significantly expand its AIO search experience, which displays AI-generated content at the top of its search results." The same filing says Google's AI Overviews rollout "has created and is expected to continue to create headwinds for our industry and our business, most notably reductions in traffic to our website and customers subscribing to our services."
The numbers behind that sentence are why this guide exists for you. Chegg's FY2022 filing reports total net revenues (in thousands) of "$766,897 $776,265 $644,338" for 2022, 2021 and 2020. That is a peak of roughly $776.3 million in 2021. The FY2025 filing, submitted 9 March 2026, reports "Total net revenues $ 376,908 $ 617,574 $ (240,666) (39)": roughly $376.9 million in 2025 against $617.6 million in 2024, a decline the company itself puts at 39%. Its Academic Services line fell from $543.6 million to $308.3 million, down 43%, which the filing blames partly on "a decrease in subscription revenue of $223.8 million primarily related to reduced traffic which led to fewer subscribers."
Read that as a signal for you. Roughly $400 million a year of spending on paid academic help left one company in four years. Some of it vanished into free AI answers. Some of it went looking for something an AI cannot give: material tied to a specific professor, a specific syllabus, a specific past exam, made by someone who sat in that room. Someone like you.
1 January 2025: the payment rails took the tax problem off your plate. Gumroad's pricing page now states: "Since January 1, 2025, Gumroad handles ALL your tax obligations," and calls itself merchant of record. Before that date, if you sold a study guide to a buyer in Germany, you were in theory supposed to think about VAT. After it, on that platform, you are not. Paddle and Lemon Squeezy offer the same arrangement. Lemon Squeezy's pricing page says "Lemon Squeezy is your merchant of record." It is the least glamorous change on this list, and if you are under 22 and have no wish to learn cross-border indirect tax, it is probably the one that matters most to you.
Put it together. The big players lost the generic-answer market, the marketplaces got more expensive, the law spelled out what you can and cannot sell, and the payment layer took on the compliance you were never going to do. That is your opening.
Your economics, line by line
Here is the part almost nobody writes down for you. It uses published fee schedules and shows the arithmetic. Where a platform does not publish a number, I say so.
Take the same product (a $12 course bundle) through four channels.
| Gumroad (direct) | Gumroad (Discover) | Etsy (US seller) | Payhip (Free plan) |
|---|
| Sale price | $12.00 | $12.00 | $12.00 | $12.00 |
| Platform fee | 10% + $0.50 = $1.70 | 30% = $3.60 | 6.5% = $0.78, plus $0.20 listing fee | 5% = $0.60 |
| Payment processing | included | included | 3.0%. 6.5% (at least $0.36) plus an undisclosed flat fee per order | not included in the 5% |
| Known deductions | $1.70 | $3.60 | at least $1.34 | at least $0.60 |
| Effective rate | 14.2% | 30.0% | at least 11.2%, plus a flat fee | at least 5%, plus processing |
Gumroad's pricing page states "10% + $0.50" per transaction "for all sales through your profile or direct links to your customers" and "30%" per transaction "when new customers find and buy from you through our discover marketplace." Etsy's FY2025 annual report states sellers "pay a fixed listing fee of $0.20 for each item listed on the Etsy marketplace," recognised over "a four-month listing period," and "pay a 6.5% transaction fee for each completed transaction, inclusive of shipping fees charged." The same filing says Etsy Payments processing fees "typically vary between 3.0% and 6.5% of an item's total sale price, including shipping, plus a flat fee per order that depends on the country in which a seller's bank account is located." Etsy does not publish that flat fee in the filing, so treat the Etsy column above as a floor. Your real total will be higher. Payhip's pricing page lists Free Forever at $0/month with a "+5%" transaction fee, Plus at $29/month with "+2%", and Pro at $99/month with no transaction fee.
The flat fee is what hurts your cheap products. Gumroad's $0.50 is a fixed charge, so it lands hardest on your smallest item. Run the same schedule down a price ladder:
| Product | Fee | Effective rate |
|---|
| $3 flashcard deck | 10% + $0.50 = $0.80 | 26.7% |
| $5 study guide | 10% + $0.50 = $1.00 | 20.0% |
| $12 bundle | 10% + $0.50 = $1.70 | 14.2% |
| $29 semester system | 10% + $0.50 = $3.40 | 11.7% |
Which of those rows is your bestseller likely to be? If it is the $3 deck, a quarter of each sale goes to fees. That is plain arithmetic on Gumroad's published schedule, and it is the strongest argument you will find for bundling. The platform charges you a fixed toll per checkout, so make each checkout worth more.
Your cost of goods is close to zero, and that is the trap. A PDF costs nothing to copy. Your real cost sits upstream, in the hours you already spent plus the hours to reformat. Treat those hours as free and you will underprice yourself. Treat them as an investment you spread across a catalogue that sells for years, and you will price sensibly.
What Stuvia actually pays you. Stuvia's help centre does not publish a commission rate. Its article on seller earnings says only "We only charge a small commission per sale," and points you to the figure in your own dashboard when you set a price. What Stuvia does publish, on its seller recruitment page, are averages: "$4 Average earnings per sale", "17 Average of sold documents per month", "$76 Average earnings per month", and "3 Average number of days until your first sale". Notice that 17 × $4 is $68, which falls short of $76. Treat these as rounded marketing figures and keep your own model separate.
Its 2025 platform statistics tell you more: "$3,000,000 Paid out to sellers", "40,000 New sellers have been welcomed", "750,000 Documents put up for sale" and "127 countries" where purchases were made. Divide the payout pool by new sellers alone and you get $75 per new seller for the entire year. That is arithmetic, with a caveat. The payout pool goes to all sellers, including far more than the 40,000 new ones, so the true figure per new seller is lower. The published "$76 Average earnings per month" almost certainly describes accounts that are actively selling, which leaves out most people who signed up. Plan around the $4-per-sale figure and your own upload count, and set the monthly average aside.
Payout timing changes when the cash reaches you. Stuvia's help centre says "You can withdraw money from your Stuvia wallet once your balance reaches at least € / $ / £10 or R200," and that "if you request your payout before Sunday 23:59 (GMT+1), we will process it the following Monday," arriving in "3 to 4 business days" in the United States and "2 to 4 business days" in the United Kingdom. At $4 a sale, three sales gets you to the withdrawal floor. That is fine, as long as you know your first real money sits roughly two weeks behind your first sale.
Tax, and the number that surprises people. If you are in the United States, the IRS states: "The self-employment tax rate is 15.3%. The rate consists of two parts: 12.4% for social security (old-age, survivors, and disability insurance) and 2.9% for Medicare (hospital insurance)." It applies once "Your net earnings from self-employment (excluding church employee income) were $400 or more." That $400 threshold is low enough that one decent semester can cross it. The IRS also notes "You can deduct the employer-equivalent portion of your self-employment tax in figuring your adjusted gross income," so the headline rate overstates what you will finally pay, and the calculation below is deliberately a rough upper bound.
Follow one $12 Gumroad direct sale all the way through:
| Line item | Per $12 sale |
|---|
| Revenue | $12.00 |
| Platform fee (10% + $0.50) | −$1.70 |
| Marginal COGS | $0.00 |
| Sales tax / VAT | handled by Gumroad as merchant of record since 1 January 2025 |
| Net earnings | $10.30 |
| Self-employment tax at 15.3% (upper bound) | −$1.58 |
| Left before income tax | $8.72 |
So roughly 73 cents of every dollar of your list price survives to the point where ordinary income tax applies. Could you sell 30 bundles in a semester? If you do, you have $261.60. That is real money, and a long way from the headline "$360 of sales."
Please do not assume that no tax form means no tax. The IRS says "A payment app or online marketplace is required to send you a Form 1099-K if the payments you received for goods or services total over $20,000 in more than 200 transactions". And separately that "You must report income earned from the gig economy on a tax return, even if the income is: Not reported on an information return form: like a Form 1099-K, 1099-MISC, 1099-NEC, W-2 or other income statement."
If you are in the UK, HMRC's guidance states "The trading allowance is a tax exemption of up to £1,000 a year for individuals with trading income" and "If your gross income for a tax year is more than £1,000, you must register for Self Assessment by 5 October in the following tax year." Stuvia publishes its averages in dollars, so there is no clean sterling conversion to give you, but at a few dollars a sale the allowance covers a few hundred documents. You can reach it, though probably not in your first term.
Now translate those per-sale numbers into your term. A handful of bundles in exam week could cover the textbook you were going to skip, a train ticket home for the holidays, or a month of groceries without the mental arithmetic at the checkout. The notes keep selling while you are in class, asleep, or working the shift you were hoping to drop.
What the pros actually use
Here is the pleasant surprise: most of a mature study-notes stack is free. The few paid parts earn their place because they show up in your profit and loss, and your day-to-day workflow barely needs them.
Anki: free desktop, $24.99 on iOS. The Anki site states "The free computer version is available for all major platforms" and "The free AnkiWeb synchronization service lets you sync your cards across devices." The App Store lists AnkiMobile Flashcards at $24.99 from Anki Software, LLC. If you sell decks and use an iPhone, this is your one unavoidable spend, and it pays for itself twice: you need it to check that a deck imports and behaves on the device most of your buyers use. Ship an .apkg you have never opened on mobile and you will be answering refund requests.
Affinity: free. The Affinity site says "Yes, Affinity really is free. You can use every tool in the Pixel, Vector, and Layout studios, plus all of the customization and export features, as much as you want, with no restrictions or payment needed," and describes itself as "Free for individuals. Optional AI via Canva." If you are laying out a 60-page PDF with consistent master pages, running headers and a real table of contents, a layout application beats a slide tool. It is the biggest quality jump you can get for zero cost.
Figma: Starter is free. Figma's pricing page lists Starter as "Free" with "Unlimited drafts" and "UI kits and templates," and Professional at "$16/mo" per full seat. Free is enough for your cover art, diagrams and social posts. Upgrade only when you need shared libraries because you are working with a co-author.
Notion: $0 or $10. Notion's pricing page lists Free at "$0 per member / month", Plus at "$10 per member / month" and Business at "$20 per member / month". If you sell Notion templates, build them on the free tier; the paid tiers buy collaboration features your buyers never see. Pay once you have a co-author, and wait until then.
Kit: free to 1,000 subscribers. With the subscriber slider set to 1,000, Kit's pricing page lists Newsletter at "$0/mo", Creator at "$33/mo" ("$390 billed yearly") and Pro at "$66/mo" ("$790 billed yearly"). The free tier is described as "Free. Limited automations." Your email list is the asset that outlives any platform, because your Gumroad or Stuvia audience is rented. Upgrade when your semester-launch sequence needs automation. The $390/year is roughly 98 Stuvia sales at their published $4 average. Have you sold 98 yet? That question tells you whether you have earned the upgrade.
Calendly: free until you sell two kinds of session. Calendly's pricing page lists Free, Standard at "$10/seat/mo" and Teams at "$16/seat/mo", with the free plan limited to "1 event type." That limit is exactly what forces your upgrade: the moment you offer both a 30-minute exam-review call and a 60-minute deep dive, you are on Standard.
Zoom: Basic caps you at 40 minutes. Zoom's pricing page lists Basic at "40 minutes per meeting" and Pro, Business and Enterprise at "30 hours." If tutoring becomes a real income line for you, that cap will cut off a session mid-derivation at least once, and once is enough to sting.
The checkout layer is where your real decision sits. Gumroad charges "10% + $0.50" direct and "30%" via Discover. Payhip charges "+5%" on its free plan, "+2%" on Plus at $29/month, and no transaction fee on Pro at $99/month. Lemon Squeezy and Paddle both publish "5% + 50¢", and both act as merchant of record. Paddle's page describes "5% + 50¢ per Checkout transaction" with "Cross-border sales tax compliance" included.
Do two pieces of arithmetic before you commit. First, on a $12 sale, Lemon Squeezy or Paddle costs you $1.10 against Gumroad's $1.70. That is a 5-percentage-point difference, with merchant-of-record status on both sides. Second, Payhip Plus saves you 3 percentage points over Payhip Free, which on a $12 product is $0.36 a sale; at $29/month the upgrade breaks even at about 81 sales a month. How many sales a month are you making right now? Below 81, stay on the free plan. Most sellers upgrade years too early.
Your total minimum viable stack: $24.99, once, and only if you are on iOS. Everything else on that list has a free tier you can really use. If someone tries to sell you a course on the tools you need, they are solving the wrong problem for you.
Behind the scenes: a real week
What follows is an illustrative composite built from the published mechanics above: payout timings, fee schedules, platform rules. It describes no specific person, and its numbers are worked examples rather than reported results.
Sunday, 21:40. You request your Stuvia payout because the cutoff is "Sunday 23:59 (GMT+1)" and missing it costs you a week. Your balance is $47. You do the sum in your head (at $4 a sale that is about twelve documents sold) and note that the money lands Thursday or Friday. It is the least glamorous job in your week, and the one you will most often forget.
Monday. A buyer emails to say your Anki deck will not open. It opens fine on your laptop. Ninety minutes later you find the cause: a media file path that works on desktop and breaks on mobile. You re-export, re-upload, and refund the buyer anyway. Your week's tally: minus one sale, minus ninety minutes, plus one deck that now works. This is exactly why the $24.99 iOS app is on your tool list.
Tuesday. You spend three hours reformatting last semester's notes into your layout template. You write nothing new. You fix heading levels, rebuild two tables that were screenshots, and redraw one diagram that looked fine on your screen and turned to mush at print size. Three hours, and you learn nothing new at all. Could you face that on a Tuesday in exam season? If not, do your reformatting in the break between terms.
Wednesday. Two sales. You check the numbers and see that your $5 single-chapter guide is the one selling, and at Gumroad's "10% + $0.50" that is a 20% effective rate against 14.2% on your $12 bundle. You spend forty minutes rewriting the product page to push the bundle. Sales that day: still two.
Thursday. A first-year messages to ask whether you can "just do" their problem set. This is the most important decision of your week, and it takes four seconds. You say no. Under section 27 of the Skills and Post-16 Education Act 2022 that is a criminal offence in England, and under Australia's TEQSA provisions the penalties run "up to 2 years' imprisonment or fines of up to 500 penalty units." You send them your study guide link instead.
Friday. Your payout arrives. You post a note-taking timelapse and it goes nowhere, which stands out only because one you posted a fortnight ago, and thought was worse, did well. You cannot tell why, and neither can anyone else. Tracking on this channel is close to non-existent: unless a buyer tells you, you will never know which video sold your guide.
Saturday. You do nothing, and a few copies sell. This is what the business really delivers, but only once you have a catalogue, and your catalogue is Tuesday, repeated forty times.
Look at the shape of your week rather than the percentages. Most of it is reformatting and admin, a real slice is marketing you cannot trace, and a small steady tail is customer support. You will notice writing new material is missing from the list. The material is the coursework you were doing anyway.
Most of your real week is marketing and a little support, which makes the money steady enough to plan around. If your sales hold near the middle of this range through the semester after fees and costs, rent on your student flat goes out on the first without you checking the balance, and the part-time shift you dread gets easier to drop. Put the formatting, promotion and buyer support into your weekly calendar.
The gotchas nobody mentions
Your professor's slides belong to your professor, and the platforms know it. Stuvia's help centre is unambiguous: "No. It is not allowed to upload study materials created by your teachers or professors on Stuvia. These materials are their property and are protected by copyright. Only documents that you fully own the copyright to may be uploaded and sold on Stuvia." This is the most common reason a promising catalogue gets deleted. Your notes about a lecture are yours. The lecture deck belongs to the lecturer. So do textbook figures, past papers the department owns, and a publisher's test bank. Which of your files would survive that test today? Sort them into two piles now, before you upload anything.
In some countries, the line between "study material" and "cheating service" is written into law. England's section 26 catches material that "is prepared in connection with the assignment, or has not been published generally". In practice, a bespoke document written for one student's specific coursework sits squarely inside the offence, while a study guide you sell to everyone sits in the carve-out. File format makes no difference. What counts is whether you made the thing for one person's assignment.
Australia can block your website as well as fine you. TEQSA's guidance states that Australia's anti-cheating laws "make it an offence to provide or advertise academic cheating services in higher education, with penalties of up to 2 years' imprisonment or fines of up to 500 penalty units ($111,000 on 30 June 2021) or both." The same page notes the provisions "allow TEQSA to apply under section 127A to the Federal Court for an injunction requiring carriage service providers to take steps to disable access to websites found to contravene or facilitate a contravention." Look at the word advertise. Your TikTok caption can be the advertisement.
Europe reports your income to the tax office automatically, and freezes your payouts until you comply. Stuvia's DAC7 article states: "Due to European legislation (DAC7), we are required to share certain seller information with the tax authorities," and "We report sellers with more than 30 sales or a total revenue above €2,000 in a calendar year." The enforcement step is the part you plan for: "After 25 sales, we'll ask you to complete any missing information," and "After 28 sales, we'll temporarily disable payout requests if the required details are still missing." You will need "Your tax identification number, your full name, your address, and your IBAN or bank account number." Hit 28 sales in exam week with an incomplete profile and your money is stuck.
Merchant-of-record status varies by platform, and it changes what you owe. Gumroad states "Since January 1, 2025, Gumroad handles ALL your tax obligations," including "VAT, GST, or any other international tax requirements," and provides a reseller certificate for sellers who already file indirect tax returns. Lemon Squeezy and Paddle make the same arrangement. Platforms that are not merchant of record leave indirect tax with you. Before you sell abroad, check which kind you are on, because that answer decides whether cross-border VAT is your problem.
Etsy's advertising fee can swallow your whole margin. Etsy's annual report describes an extra "transaction fee of 12% or 15% of the value of a sale based on the seller's volume of sales, if such sale is generated from an advertisement placed by Etsy on third-party internet platforms." Add 12% to a 6.5% transaction fee, a $0.20 listing fee and processing of "between 3.0% and 6.5%" plus a flat per-order charge, and your $5 digital download stops being a business.
Insurance and licensing split along the product/service line. None of the fee schedules, platform rules or statutes reviewed for this guide puts a licensing or insurance requirement on selling a study PDF. The duties that attach to it are about tax and copyright. Tutoring is a different kind of thing, because you are delivering a service to a person. Once you contract directly with families, or work with under-18s, the questions move from copyright to background checks, safeguarding and professional indemnity, and those rules vary by country and often by state or county. Nothing in the sources here settles that for where you live, so treat tutoring as a separate business with its own compliance check, kept apart from the upsell on your Gumroad page.
Hobby or business is a real classification. The IRS lists factors including "Do they carry out the activity in a businesslike manner and keep complete and accurate books and records?", "Does the time and effort they put into the activity show they intend to make a profit?" and "Does the activity make a profit in some years. If so, how much profit does it make?" The practical upshot is dull and useful: keep records from your first sale.
Rookie mistakes
Pricing at $3 on a platform with a flat per-transaction fee. Gumroad's "10% + $0.50" turns your $3 sale into a 26.7% effective rate. Sell 100 copies at $3 and you have $300 of revenue and $80 in fees. Sell the same $300 as ten $30 bundles and the fees are $35. Cost: about 15 percentage points of margin, permanently, on every unit.
Listing everything on Etsy before anything sells. Etsy's listing fee is "$0.20 for each item listed," recognised over "a four-month listing period." Forty listings that never sell renew three times a year: 40 × $0.20 × 3 = $24 a year in pure carrying cost. It is small, and it is a subscription you did not know you had bought. Cost: about $24 a year per forty dead listings.
Uploading a professor's slide deck. Stuvia's stated rule is that "Only documents that you fully own the copyright to may be uploaded and sold," so there is no grey area here for you. A removal takes the listing's search history with it. Cost: the ranking a listing took a full semester to earn, plus your account if it happens again.
Ignoring the DAC7 prompt. Payout requests switch off after 28 sales if your details are missing. If those 28 sales come in the fortnight before finals (which is exactly when they come) your cash is locked at the busiest point of your year. Cost: weeks of cashflow, at the worst possible time.
Assuming no tax form means no tax. The 1099-K threshold is "over $20,000 in more than 200 transactions," and the IRS separately says income must be reported "even if the income is: Not reported on an information return form." Self-employment tax applies at "$400 or more" of net earnings at a rate of "15.3%". Cost: an unbudgeted 15.3% on net earnings, discovered in April.
Building your whole funnel on rented traffic. Gumroad Discover charges "30%" against "10% + $0.50" for direct sales. On a $12 product that is a 15.8-percentage-point premium you pay for having no audience of your own. On 200 sales a year at $12 that is $380. Cost: roughly $380 a year per 200 sales, or the several months it takes you to build a list instead.
Selling assignment help because someone offered good money. Cost: in England, a criminal offence under section 27; in Australia, exposure to penalties of "up to 2 years' imprisonment or fines of up to 500 penalty units." No amount of money makes this worth it for you.
Waiting for the perfect first product. Stuvia's published average is "3 Average number of days until your first sale." Nothing in that number rewards a fourth revision. Cost: a whole semester's cohort, who graduate and never buy.
Where this goes next
This section is my opinion, clearly labelled. Read it as a forecast.
My read: generic study material is finished as a standalone business, and the specific kind is about to become more valuable. The evidence for the first half is on the record. Chegg's revenue went from roughly $776.3 million in 2021 to roughly $376.9 million in 2025, and the company's own filing points to Google's August 2024 AI Overviews expansion as a cause. Anything a language model can produce from general knowledge now sells for close to zero.
What survives is material a model cannot generate: this professor's emphases, this department's marking scheme, the three topics that came up on the last four finals. That knowledge lives only in the heads of people who took the course, people like you. It is missing from training data. It expires. And it is exactly what students struggle most to rebuild from an AI chat. So ask yourself: what do you know about your hardest course that no chatbot could?
I also expect the merchant-of-record model to become the default, following Gumroad's 1 January 2025 change and matching what Paddle and Lemon Squeezy already do. Compliance is the wall that keeps 19-year-olds out of cross-border selling, and platforms competing for creators like you will keep taking it on.
The signal to watch is Chegg's Academic Services line. It fell from $543.6 million in 2024 to $308.3 million in 2025 (down 43%. If that line stabilises in the FY2026 filing) Chegg filed its FY2025 report on 9 March 2026, so expect the next one around the same point in 2027. A steady line would mean a lasting floor of students who pay for human-checked academic help even with free AI around, and that floor is your market. If it keeps falling at 40%-plus, willingness to pay is heading to zero across the category, and your niche shrinks to impulse buys in exam season.
A second signal, cheaper for you to check: whether Stuvia's published annual "Paid out to sellers" figure climbs above $3,000,000. That one number is the whole platform's seller economy. If it goes up, the market is growing. If it stays flat while "New sellers have been welcomed" keeps climbing past 40,000, the average seller earns less each year even as the platform looks healthier.
Every semester you wait, your memory of the course fades a little and a fresh cohort buys from someone else. The syllabus moves on whether you feel ready or not. Pick the one course you know best, export it as a clean PDF tonight, and list it before the next exam season starts. One listing live this week beats a perfect catalogue you plan to finish someday.
Who should skip this
Skip it if your material is mostly your professor's material. Stuvia's rule is that "Only documents that you fully own the copyright to may be uploaded and sold." If your notes are transcribed slides, you have no product here, only a takedown queue.
Skip it if you need money this month. Stuvia's own published average is "$76 Average earnings per month" and "$4 Average earnings per sale," with a $10 minimum before you can withdraw and several days for the payment to land. Two shifts at almost any hourly job will clear that faster and with certainty. Is it rent you need by the first, or a second income that grows slowly? Your answer decides this one.
Skip it if you were planning to sell assignment completion. England's section 27 makes it an offence "in commercial circumstances", and Australia's regime reaches advertising as well as provision, with penalties of "up to 2 years' imprisonment or fines of up to 500 penalty units." Please treat that as a firm reason to stay away, with no route around it.
Skip it if you will not do the marketing. The published gap is stark: "10% + $0.50" for traffic you bring versus "30%" for traffic the platform brings. If you will not build an audience, you have picked the 30% option by default, and on a $12 product that is $3.60 a sale for the rest of your catalogue's life.
Skip it if your courses change every year. The economics depend on one document selling to several cohorts. Foundational subjects allow that; a module rebuilt every year around new case studies does not. You would be doing Tuesday's three hours of reformatting every single year for the same revenue.
Skip it if admin wears you down. DAC7 reporting at "more than 30 sales or a total revenue above €2,000", payout holds "After 28 sales", self-employment tax from "$400 or more" of net earnings, Self Assessment registration in the UK once gross income passes £1,000. None of it is hard. All of it is mandatory, and it arrives exactly when your business starts working.
Skip it if your university's academic integrity policy forbids it. No statute overrides your own university's code, and the penalties there (up to and including expulsion) land faster than any court's. Have you read your own institution's policy yet? Spend ten minutes on it before your first upload.