Turned 18 and forgot to register for Selective Service? What to do now

Fix it in five minutes

1. Go to sss.gov and choose the online registration. Use only the official site.
2. Have your Social Security number ready. That is the main thing it asks for.
3. Fill it in and submit. It takes two to five minutes. It costs nothing.
4. Save the confirmation. A screenshot is fine. Keep it with your other papers.

That is the whole fix. Late registration is accepted until you turn 26, so if you are reading this at 18 or 19, you are well inside the line.

What the 30 days and the age 26 limit mean

The law asks men to register within 30 days of turning 18. Missing that does not lock you out. The Selective Service page on who needs to register covers almost all male US citizens and male immigrants ages 18 through 25.

The hard stop is 26. After that, late registration is no longer accepted.

The cost of never registering is real. It is a federal felony that can bring a fine of up to $250,000 and up to five years in prison. And it can block things years later, when you have forgotten all about it: most federal jobs, many state jobs, many state student aid programs, federal job training, and US citizenship for immigrant men. The Selective Service page on benefits and penalties lists them.

What registering does not mean

Maybe you put this off because it sounded like signing up to fight. It is not that.

Registering is not joining the military. It does not mean there is a draft. Congress would have to pass a new law to start one.

There is also talk that registration is automatic now. A 2025 law requires the government to start registering men automatically, with a deadline in December 2026. Until that system is clearly running, the book says registering yourself is the safe move.

Two months past your birthday

You are filling out a job form, or a friend mentions it at lunch, and it hits you. You turned 18 in the summer. You never did the Selective Service thing.

You look it up and see the words federal felony. Now your heart is going.

Breathe. You are not 26, and this is the page we wrote for this exact moment. Open sss.gov, find your Social Security card, and give it five minutes. Then it is done.

While you are at it: the rest of the first week

Selective Service is one of eight moves in the book's chapter on the week you turn 18. If you missed this one, you may have missed others. Most take minutes.

Register to vote at vote.gov. Ask for the REAL ID star when you renew your license. And pick someone to speak for you in a medical emergency on a health care proxy, since your parents lose automatic access to your records at 18. Our page on what changes legally at 18 lays them all out in one table.

The Selective Service item in the book

This is the problem The 18 Manual was written for. Iris Athens wrote it so the quiet deadlines at 18 stop being a surprise.

The Week You Turn 18 has the Selective Service item with its cost, its payoff and its proof grade, an A, because it rests on the Military Selective Service Act. It also covers voting, jury duty and the fake jury fine call.

The Cheap A's puts this move on its one-page list of free moves with the strongest proof, next to registering to vote and the health care proxy.

The book explains the rule. It is not legal advice. For your own record, the Selective Service System at sss.gov is the place to check.