The basic path to joining the military
Joining the military starts with contacting a recruiter for the branch you want — Army, Navy, Air Force, Marine Corps, or Coast Guard. The recruiter will explain what jobs are available, what the pay and benefits look like, and what the commitment length is. If you decide to move forward, you'll take the ASVAB (Armed Services Vocational Aptitude Battery) test, pass a medical exam, and complete a background check. After that comes the Military Entrance Processing Station (MEPS), where you'll take the oath and officially enlist.
The entire process from first recruiter contact to swearing in typically takes two to four months, though it can be faster or slower depending on how quickly you complete each step and whether anything in your background needs extra review. You don't pay anything — the military covers all costs.
Key Takeaways
- Contact a recruiter from the branch you're interested in; they will walk you through requirements and job options at no cost.
- You must pass the ASVAB test, a medical exam, and a background check before you can enlist.
- Basic requirements include being a U.S. citizen or permanent resident, between 17 and 39 years old (depending on the branch), and having a high school diploma or GED.
- The Military Entrance Processing Station (MEPS) is where you take the final oath and officially become enlisted.
- Active duty contracts are typically four years; reserve and National Guard contracts vary but are often shorter.
Finding and meeting with a recruiter
Each branch of the military has its own recruiting office. You can find the nearest one by searching online for "Army recruiter near me" or visiting the branch's official website — Army.com, Navy.com, Marines.com, AirForce.com, or USCG.mil. Recruiters are stationed in most towns and cities, and they work during regular business hours.
When you meet with a recruiter, bring your Social Security number and a photo ID. The recruiter will ask about your education, work history, any medical conditions, and whether you have any criminal history. Be honest — the military will find out anyway during the background check, and lying now can disqualify you or end your service later. The recruiter will also explain the different jobs (called "Military Occupational Specialties" or MOS) that match your test scores and interests, and what the pay and benefits are.
You don't have to commit to anything at this first meeting. Many people meet with a recruiter just to gather information and think it over.
Understanding the basic requirements
To join any branch of the military, you must be a U.S. citizen or permanent resident, have a high school diploma or GED, and pass a background check. You must also be between 17 and 39 years old — the exact age range varies slightly by branch, and you need a parent or guardian's permission if you're 17.
The military will also check your medical history. You cannot have certain conditions — severe asthma, diabetes that requires insulin, untreated mental health conditions, or a history of drug use can disqualify you. You'll have a full medical exam at MEPS, so if you're unsure whether a condition will be a problem, ask the recruiter before you go further.
If you have tattoos, piercings, or a criminal record, the rules vary by branch. Some branches are stricter than others. Ask your recruiter directly — they know the current policy and can tell you whether your specific situation will be a barrier.
Taking the ASVAB and passing medical screening
The ASVAB is a multiple-choice test that measures your knowledge in math, reading, science, and mechanical reasoning. It takes about three hours. Your score determines which military jobs you're may be able to access for — some jobs require higher scores than others. You don't need to study extensively; the test is designed to measure what you already know. Many high schools offer practice ASVAB tests for free.
After you pass the ASVAB, you'll schedule a medical exam. This includes a physical exam, blood work, hearing and vision tests, and a review of your medical history. The doctor will ask about any injuries, surgeries, medications, or mental health treatment. Again, be honest — the military has access to your medical records and will verify what you say.
If the doctor finds something that needs more information, you may need to get records from your own doctor or see a military medical specialist. This can add time to the process, but it doesn't automatically disqualify you.
The background check and security clearance
The military will run a background check that includes criminal history, credit history, and drug screening. They'll contact people you list as references and may contact former employers or neighbors. The process is thorough but standard — they're checking whether you're trustworthy and whether anything in your background poses a security risk.
If you have a criminal record, it doesn't automatically disqualify you, but serious crimes or multiple offenses make it much harder. Minor offenses like a single misdemeanor may be waivable. Ask your recruiter whether your specific record will be a problem before you invest time in the rest of the process.
If you're seeking a job that requires a security clearance (many technical and intelligence roles do), the background check is more detailed and takes longer — sometimes several months. The recruiter will tell you upfront if the job you're interested in requires a clearance.
What happens at MEPS
The Military Entrance Processing Station is a federal facility where you complete the final steps before enlisting. You'll go there on a specific day arranged by your recruiter. Bring your Social Security card, birth certificate, photo ID, and any medical records the recruiter asked you to bring. You'll also need to bring a list of addresses where you've lived for the past seven years.
At MEPS, you'll take a final medical exam (different from the earlier one), confirm your job assignment, review your contract, and take the Oath of Enlistment. The oath is the moment you officially become a member of the military. After that, you'll either ship out to basic training within days or weeks, or you'll be given a ship date in the future — it depends on when your job training class starts.
MEPS is run by the military, not by recruiters, so the staff there are neutral. If something doesn't seem right or you have questions, ask them directly. You can also back out at MEPS if you change your mind — you're not legally bound until you take the oath.
Understanding your contract and commitment
Your enlistment contract specifies how long you're committing to serve, what your job is, what your pay will be, and what benefits you'll receive. Active duty contracts are typically four years, though some jobs require longer. Reserve and National Guard contracts are often shorter — sometimes two or three years — but you'll be on call and may be deployed.
Read your contract carefully before you sign it. The job listed in the contract is the one you'll train for. The pay listed is your base pay; you'll also receive housing, food, medical care, and other benefits. If anything in the contract doesn't match what the recruiter told you, ask for clarification before you sign.
Once you sign and take the oath, you're legally committed. Breaking your contract can result in legal consequences, so make sure you're ready before you commit.
What to expect after you enlist
After you take the oath at MEPS, you'll either ship out to basic training when ready or receive a future ship date. Basic training is typically eight to thirteen weeks, depending on the branch. During basic training, you'll learn military discipline, physical fitness, weapons handling, and the basics of military life. You won't have much free time, and contact with family is limited.
After basic training, you'll go to job training, which can last anywhere from a few weeks to over a year depending on your job. During this time, you'll learn the specific skills for your role. After training, you'll be assigned to a unit and begin your regular duties.
Your pay starts the day you enlist, even during basic training. You'll also have health insurance, housing, and food provided. If you have dependents, you can receive additional housing and food allowances.
Frequently Asked Questions
Do I need a high school diploma, or will a GED work?
A GED is accepted by all branches of the military. If you have neither a diploma nor a GED, some branches may still work with you, but you'll need to pass the GED before you can enlist. Ask your recruiter about the current policy.
What if I have a tattoo or piercing?
Tattoo and piercing policies vary by branch and change periodically. Some branches restrict tattoos on the face, neck, or hands; others are more lenient. Ask your recruiter about the current policy for the branch you're interested in. If your tattoo violates the rules, you may need to have it removed or covered before you can enlist.
Can I choose my job in the military?
You can request a job based on your ASVAB score and the military's needs, but you don't have a may provide. The military assigns jobs based on what they need and what you're may have access to for. Your contract will list the job you've been assigned. If the job listed isn't what you want, you can ask to change it before you sign, but there's no may provide the military will agree.
How much does it cost to join the military?
There is no cost to join the military. The recruiter, the ASVAB, the medical exam, and MEPS are all free. You start receiving pay the day you enlist.
Can I back out after I take the oath?
Once you take the Oath of Enlistment, you are legally bound to your contract. Backing out after that point can result in legal consequences. However, there is a brief window (usually a few days) between taking the oath at MEPS and shipping out to basic training where you can request a discharge for serious personal reasons. Talk to your recruiter or the MEPS staff if something changes.