Sportsbook Sign-Up Bonus Age Requirements by State
Most sportsbooks require you to be 21 to claim a welcome bonus — but not all of them. Eight states let 18-year-olds sign up and collect promos legally. We read the commission filings so you don't have to. Here's the full picture, state by state.
Why is 21 the standard minimum age at sportsbooks?
The 21+ threshold is baked into most state licensing frameworks because sports betting licenses are frequently tied to existing casino operators, who already enforce a 21-and-over policy under gaming law. That baseline carries over into bonus eligibility rules automatically. When a state issues a sports betting license to a casino partner, 21 just becomes the floor — no extra debate required.
Missouri is a recent example. It became the 39th state to legalize sports betting, launching December 1, 2025, and set the minimum age at 21, consistent with its casino licensing structure. If you want to grab one of the available welcome offers there, you need to be 21+. For a full rundown of which states are currently live, see Is Online Sports Betting Legal in Your State? The 2026 Answer.
Which states allow 18-year-olds to bet and claim bonuses?
Eight states set the minimum betting age at 18: Kentucky, Montana, New Hampshire, New Mexico (in-person only), Rhode Island, Tennessee, Washington D.C., and Wyoming. That said, individual operators may still choose to enforce a 21+ policy even where state law allows 18. Always check the operator's own terms — the stricter rule wins. Age requirements also have no bearing on whether a bonus is worth claiming. To compare the actual offers, visit Top Sportsbook Welcome Offers Ranked for 2026.
Does the minimum age change which bonus you can claim?
Sometimes, yes. theScore Bet (promo code GOAL) advertises its First Bet Reset up to $1,000 in bonus bets to eligible new users who are 21+, but drops that to 18+ in Kentucky specifically. That kind of state-level carve-out is exactly the sort of fine print that gets buried. Before you enter any promo code, confirm your state's applicable age minimum and the operator's own policy. To understand what "First Bet Reset" actually means for your wallet, read How Sportsbook Sign-Up Bonuses Work — Every Question Answered.
State-by-state age requirement and bonus eligibility overview
| State | Minimum Age | Online Betting Available | Notes on Bonus Eligibility |
|---|---|---|---|
| Kentucky | 18+ | Yes | theScore Bet explicitly allows 18+ to claim its First Bet Reset promo here |
| Tennessee | 18+ | Yes | Online-only market; operators may still post 21+ terms — read T&Cs carefully |
| Wyoming | 18+ | Yes | FanDuel is live here; confirm operator-specific age policy before claiming |
| Rhode Island | 18+ | Yes | State minimum is 18; individual operator policies may be stricter |
| New Hampshire | 18+ | Yes | State minimum is 18; check each operator's own terms |
| Montana | 18+ | Limited | Mobile options are restricted; bonus availability is narrow |
| New Mexico | 18+ | In-person only | No statewide online market; welcome bonuses largely unavailable |
| Washington D.C. | 18+ | Yes | Limited operator pool; BetMGM is excluded from DC per its own terms |
| Missouri | 21+ | Yes (launched Dec 1, 2025) | DraftKings and Fanatics both active with welcome offers at launch |
| New York | 21+ | Yes | BetMGM promo code BUSABONUS not available here per operator T&Cs |
What about BetMGM — which states and ages are covered?
BetMGM's welcome offer (promo code BUSABONUS, up to $1,500 in bonus bets) requires users to be 21+ and is not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico. It's one of the largest advertised offers on the market, but geographic and age restrictions are tight. See the full breakdown at BetMGM Promo Code BUSABONUS — $1,500 Bonus Bets Reviewed.
Bonus availability and legal age requirements vary by state and can change as new regulations take effect. Always confirm current rules with your state's gaming commission and the operator's terms before signing up. 21+. Gambling problem? Call 1-800-GAMBLER.