A certification costs money and weeks of evenings before it pays anything. Put in your own cost, study time and expected raise to see when you are back to even and how far ahead you are three years from today.
The clock starts the day you start studying. You earn nothing extra while you study or while you look for the new job, so those weeks come first. After that, the raise pays back the cost a week at a time. Payback is the week the extra pay you have collected equals what you spent.
The three-year gain counts only the weeks after the raise starts, inside 156 weeks from today, minus the cost. It ignores tax and assumes the raise holds, so treat it as a ceiling.
Use job ads, not course marketing. Search the job title near you, note the pay range on ads that name the credential, and compare it with what you earn now. The BLS Occupational Outlook Handbook gives national medians, such as $62,890 for computer support specialists in May 2025, but your local ads are a better guide to what you can get next.
Then run the half-raise line. If the credential still pays back inside a year when the raise is half what you hoped, it is a safe bet. If it only works at the full raise, look for a cheaper route or an employer who pays for the exam.
Add the exam fee, course and any retake. Divide by the weekly raise you expect to get the weeks to pay back, then add the weeks you spend studying and job hunting. For the return, multiply the weekly raise by the weeks it runs over three years and subtract the cost.
Cheap exams tied to jobs that hire with a high school diploma usually pay back first, such as CompTIA A+ for computer support or the PTCB exam for pharmacy technicians. Our comparison lists official costs and BLS pay for 13 of them.
No. A diploma mill degree costs about the same as a real exam, around $249 in one federal court case, but it fails background checks and using one is a crime in some states, such as Texas.