Most US states require bettors to be 21+. D.C. and Montana allow wagering at 18+. This FAQ explains KYC verification, why apps ask for your SSN, and more.
Most US states set the minimum age to use a bet app at 21. A small number of states allow wagering at 18+. Your physical location when you place the bet — not your home state — is what matters legally.
Washington D.C. and Montana both allow sports betting at 18+. That's basically it. D.C. transitioned from the GambetDC app to FanDuel in 2024 and opened the market to additional operators after that. Montana runs a state-controlled model through the Sports Bet Montana app, and wagers must be placed on-premise at a licensed retail location.
Kentucky launched sports betting at 18+ in 2023 but raised the minimum age to 21+ in April 2026. So if you're going by old forum posts, double-check before you sign up.
The minimum is 21 in the vast majority of legal markets — New Jersey, New York, Michigan, Pennsylvania, Illinois, and roughly 25 more. That aligns with casino gambling minimums in those states. Check which states allow bet apps before downloading anything.
All licensed US sportsbooks are required to verify your identity as part of Know Your Customer (KYC) rules. At registration you'll supply your full legal name, date of birth, home address, and the last four digits of your Social Security number. It's a legal requirement, not optional.
KYC failures — incomplete info, a name mismatch — can freeze your account and delay withdrawals. Get it right the first time.
No. Your physical location at the time of the wager is what counts, enforced by geolocation technology built into every licensed app. A New York resident visiting New Jersey can bet legally. That same person back home in New York can also bet — New York has licensed mobile sportsbooks. But a resident of Idaho can't cross a state line on their phone; geolocation catches it.
VPNs won't help. Licensed apps will block the bet.
Every licensed app runs an automated KYC check at the point of account creation. You enter your name, DOB, address, and last four of your SSN. The platform cross-references that against identity databases. If it can't confirm your age automatically, it may request a photo ID upload before you can deposit or withdraw.
Sweepstakes platforms use virtual currency mechanics and are legal in nearly every state, including states with no licensed sportsbooks. Age minimums still apply — typically 18+ — but the exact rules vary by platform. They're not a workaround for underage betting; they still verify age at registration.
A couple worth knowing:
| State / Market | Minimum Age | Mobile Betting Legal? |
|---|---|---|
| Washington D.C. | 18+ | Yes |
| Montana | 18+ | On-premise only (Sports Bet Montana app) |
| New Jersey | 21+ | Yes (17 licensed sportsbooks) |
| New York | 21+ | Yes (9 licensed operators) |
| Michigan | 21+ | Yes (13 licensed sportsbooks) |
| North Carolina | 21+ | Yes (launched March 11, 2024) |
| Nebraska | 21+ | No — retail only |
| Mississippi | 21+ | No — retail only (as of early 2026) |
| Hawaii | N/A | Not legalized |
| Idaho | N/A | Not legalized |
FanDuel leads the US market with an iOS rating of 4.8. DraftKings and bet365 are close behind. See the full breakdown in the best betting apps in the USA for 2026 guide, which ranks every major licensed app by ratings, state reach, and payout speed.
If you're also weighing sign-up promos, read the sportsbook app bonuses FAQ before claiming anything — rollover rules and expiry windows can make a headline offer far less valuable than it looks.
For a deeper dive on iOS-specific performance and ratings, the best betting apps for iPhone page compares iOS scores side by side. If payout speed matters most, fastest-paying bet apps ranks BetRivers (RushPay) and Fanatics at the top.
Must be 21+ in most states (18+ in D.C. and Montana). Gambling problem? Call 1-800-GAMBLER.