Graduating high school gets you higher lifetime earnings, access to college and military service, better health outcomes, and a credential that employers treat as a baseline requirement for most jobs. The benefits are both immediate and long-term, affecting everything from your first paycheck to your life expectancy.
Higher Earnings Over Your Lifetime
The income gap between high school graduates and non-graduates is significant and persistent. Full-time workers with a high school diploma earn roughly 24 percent more than those without one. In concrete terms, the median weekly earnings for a full-time worker with a diploma but no college degree were $781 in 2020, which is $162 more per week than what workers without a diploma earned. Over a full year, that gap adds up to more than $8,000.
Among 25- to 34-year-olds working full time, high school completers had median annual earnings of $41,800 in 2022, compared to $35,500 for those who didn’t finish, according to the National Center for Education Statistics. That $6,300 annual difference compounds over a career. Across 30 or 40 working years, the cumulative difference reaches well into six figures, and that’s before factoring in the better jobs and promotions that a diploma opens the door to.
A Credential Employers Expect
Most employers treat a high school diploma as the minimum qualification for hiring. Entry-level positions in retail, food service, warehousing, office administration, and skilled trades typically list it as a requirement. Without one, you’re competing for a much smaller pool of jobs, often ones with lower pay and fewer opportunities to advance.
When you graduate, you receive two key documents. The diploma itself is the formal certificate confirming you completed your education. Your official transcript is a detailed record of every course you took and the grades you earned. Some employers ask to see a transcript during the hiring process, and scholarships, internships, and certain jobs may request one as well. Your school can issue official transcripts (sealed and verified) or unofficial ones, depending on what’s needed.
Access to College and Financial Aid
A high school diploma or its equivalent is the entry ticket to virtually all postsecondary education. Community colleges, four-year universities, trade schools, and certificate programs all require proof that you finished high school before they’ll admit you. Without it, pursuing a nursing degree, an electrician’s apprenticeship through a community college, or a bachelor’s in any field is off the table.
Federal financial aid, including Pell Grants and federal student loans, also requires that you’ve completed high school or earned an equivalent credential. That means graduating doesn’t just let you apply to college. It lets you afford it.
Military Enlistment Eligibility
All branches of the U.S. military require a high school diploma or GED to enlist. But the two are not treated equally. GED holders face significantly fewer available slots and generally need to have earned college credits or scored higher on the ASVAB (the military’s aptitude test) to improve their chances of getting in. A diploma holder has a much smoother path to enlistment. If you want to enter the military as an officer, you’ll eventually need a four-year college degree, which itself requires a diploma to pursue.
Better Health and Longer Life
The connection between finishing high school and living a longer, healthier life is well documented. The Office of Disease Prevention and Health Promotion notes that people who don’t complete high school face higher risks of poor health and premature death. The link runs through several channels: without a diploma, you’re more likely to end up in lower-paying work or unemployment, which limits your access to health insurance, stable housing, nutritious food, and preventive medical care.
Not finishing high school is also strongly linked to poverty, and poverty itself drives worse health outcomes. Young people ages 16 to 24 who didn’t complete high school were 3.7 times more likely to come from low-income families compared to high-income families. Completing high school doesn’t guarantee good health, but it meaningfully reduces the economic risk factors that lead to worse outcomes.
A Foundation for Every Path After
Beyond the measurable benefits, a diploma functions as a universal starting point. Apprenticeship programs, professional licensing boards, government jobs, and most vocational training programs all assume you have one. Even self-employment and entrepreneurship become easier when you can access small business loans and programs that require basic educational credentials.
A GED can substitute for a diploma in many situations, but it doesn’t carry the same weight everywhere. Military enlistment is harder. Some employers and scholarship committees view it less favorably. Graduating on time, when possible, gives you the strongest version of this credential with the fewest asterisks attached.