Adults who never finished high school have several realistic paths to earn a diploma or its equivalent, most of them free or very low cost. The right option depends on how many credits you already have, how much time you can commit, and whether you prefer classroom learning, self-study, or a portfolio-based approach. Here’s how each pathway works and what to expect.
Go Back and Finish at an Adult High School
If you left high school with some credits already earned, an adult high school program lets you pick up where you left off and earn an actual diploma, not an equivalency credential. Many states fund these programs specifically for residents who are 21 or older and never graduated. Classes are designed around adult schedules, with evening, weekend, and online options available at most locations.
Your previous transcripts determine how many credits you still need. Some programs accept transfer credits from multiple schools, and a few will grant credit for verified work experience or military training. Beyond the diploma itself, many adult high school programs bundle in career and technical education certificates, industry-recognized credentials, or even college credits at no additional cost. That makes them worth exploring even if another pathway seems faster.
To find a program near you, contact your local school district’s adult education office or search your state’s department of education website. Community-based nonprofit organizations also operate adult high schools in many areas, often funded by state grants. Enrollment is typically open year-round rather than tied to a traditional school calendar.
Earn an Equivalency Credential: GED or HiSET
A high school equivalency exam is the most common route for adults who want a credential without sitting through traditional coursework. The two main exams are the GED and the HiSET. Both are widely accepted by employers and colleges, and either one results in a state-issued equivalency diploma.
The GED covers four subjects: math, science, social studies, and language arts. You can take each subject as a separate test and spread them out over time, so you don’t need to pass everything in one sitting. The HiSET covers five subjects, splitting language arts into separate reading and writing tests. Both exams are offered at testing centers, and the GED also has an online proctored option you can take from home.
Cost varies by state. Many states cover the full cost of your first attempt and at least one or two retests for each subject through promotional codes or vouchers. If you exhaust those free attempts, retests typically run $27 to $36 per subject. In practice, most people pay little or nothing out of pocket if they prepare adequately before testing.
Free prep classes are available through adult education centers in nearly every community. These classes walk you through the content area by area and often include practice tests so you know what to expect. If you prefer self-study, official practice materials are available through each exam’s website. Most people who study consistently can prepare for the full exam in two to six months, depending on how long they’ve been out of school and which subjects need the most review.
The National External Diploma Program
The National External Diploma Program (NEDP) is a less well-known option that awards an actual high school diploma based on skills you demonstrate through a portfolio rather than a timed exam. It’s designed for adults who have real-world life and work experience but don’t test well or prefer a hands-on approach.
Instead of sitting for a standardized test, you complete a series of tasks online that cover reading, writing, math, and workforce readiness. The tasks are built around practical topics like financial literacy, health literacy, civic literacy, history, science, and workplace skills. Everything is evaluated against Common Core college and career readiness standards, so the credential carries real weight with employers and colleges.
The NEDP works well for self-directed learners who are comfortable using a computer and can work at their own pace. You’ll need internet access to complete the portfolio tasks, and an advisor guides you through the process. The program is available through participating adult education centers in select states, so check with your local center to see if it’s offered in your area.
How to Find Free Classes and Programs
Cost should not be a barrier. Adult education centers across the country offer free classes for diploma completion and equivalency exam prep, funded by grants and state or federal dollars. The website FinishYourDiploma.org, backed by the Dollar General Literacy Foundation, maintains a searchable directory of free local programs. Enter your zip code to find centers near you, or call the National Literacy Directory at 1-877-389-6874 for help locating one.
Community colleges, public libraries, and workforce development offices are also good starting points. Many community colleges run adult basic education programs at no cost, and some libraries host weekly GED or HiSET prep groups. If you’re working, ask your employer whether they offer tuition assistance or education benefits. Some large employers partner with adult education providers to help employees finish their diplomas.
Choosing the Right Path
Your best option depends on your situation. If you were close to graduating and still have transcripts showing earned credits, an adult high school program may be the fastest route to a traditional diploma. If you’ve been out of school for years and want to move quickly, a GED or HiSET lets you test out of the requirement in a matter of months. If standardized tests aren’t your strength but you have solid real-world skills, the NEDP’s portfolio approach might be a better fit.
All three paths lead to credentials that employers and colleges recognize. Community colleges accept GED and HiSET scores for admission, and most job applications that require a high school diploma will accept an equivalency credential. The practical difference between a traditional diploma and an equivalency credential is minimal once you’re in the workforce or enrolled in further education.
Steps to Get Started This Week
- Request your old transcripts. Contact the last high school you attended (or the school district if it has closed) and ask for an unofficial transcript. This tells you how many credits you already have and helps an adult education advisor recommend the right program.
- Find your local adult education center. Search your state’s department of education website or use the zip code tool at FinishYourDiploma.org. Most centers offer a free orientation session.
- Take a placement or practice test. Adult education centers typically give a short assessment to gauge your current skill levels in reading, writing, and math. This isn’t a pass-or-fail test. It helps staff place you in the right prep class or determine whether you’re ready to test right away.
- Enroll in prep classes or register for an exam. If you need review, start attending classes. If your skills are already strong, you can register for the GED or HiSET and begin scheduling individual subject tests.
- Set a realistic timeline. Adults who attend prep classes regularly and study a few hours per week typically complete the process within three to twelve months. Building a consistent schedule matters more than cramming.
Millions of adults earn their diploma or equivalency credential every year. The programs exist specifically to make this accessible, and the first step is simply showing up to ask what’s available in your community.