Approximately 39 states plus Washington DC have legalized sports betting in some form as of 2026; roughly 32 of those permit statewide online and mobile wagering. That means placing an over under bet legally from your phone is possible for the majority of US adults — but not all.
Which States Allow Online Over Under Betting in 2026?
The Supreme Court struck down PASPA on May 14, 2018, in Murphy v. NCAA, handing each state the authority to legalize sports betting on its own terms. Most large-population states moved quickly. A few still haven't moved at all.
States with statewide online sports betting active include: New Jersey, Pennsylvania, Michigan, Illinois, Colorado, New York, Arizona, Indiana, Iowa, Tennessee, Virginia, Ohio, Maryland, Massachusetts, Kentucky, North Carolina (launched March 11, 2024), and Vermont (launched January 11, 2024, with three operators), among others. Missouri launched online sportsbooks in December 2025 under Amendment 2.
Florida is a special case: mobile betting is restricted to Hard Rock Bet under the Seminole tribal compact, upheld in 2025. Mississippi permits app-based wagering only on-site at licensed casinos — fully mobile play statewide is not available. Montana limits sports betting to state-authorized lottery terminals and an approved app in designated locations only. Some tribes in New Mexico, North Dakota, Washington, and Wisconsin offer sports betting under existing Class III gaming compacts without separate state legislation.
For a full breakdown of which operators are verified in each state, see the licensed US sportsbooks for over under bets page.
Where Is Over Under Betting Still Illegal?
Several high-population states remain off the board. California is the biggest: Prop 26 and Prop 27 both failed in November 2022, leaving online sports betting illegal statewide. Texas, the second-most-populous state, has no legal sports betting of any kind. Other states with no legal framework as of 2025–2026: Utah, Idaho, Hawaii, Alaska, Alabama, Georgia, Minnesota, South Carolina, and Oklahoma.
These states have no licensed operators, so there is no legal venue — online or retail — to place a totals wager. Checking your state's current status matters before depositing anywhere. The broader legal over under betting in the US: state laws and tax rules section covers what changes to watch for.
What Is the Minimum Age to Bet Over Under?
Illinois sets the minimum at 21+. Most legal US states also require 21+. A handful allow 18+. Age requirements are set by each state; verify before signing up. Must be 21+ in most states. Gambling problem? Call 1-800-GAMBLER.
State Status at a Glance
| State | Online/Mobile Betting | Notes |
|---|---|---|
| New Jersey | Legal, statewide | One of the earliest post-PASPA markets |
| Pennsylvania | Legal, statewide | Multiple licensed operators active |
| Michigan | Legal, statewide | Multiple licensed operators active |
| Colorado | Legal, statewide | Up to 30 licenses; ~20 active operators including BetMGM, FanDuel, DraftKings |
| North Carolina | Legal, statewide | Launched March 11, 2024; up to 12 authorized sportsbooks |
| Missouri | Legal, statewide | Launched December 2025 under Amendment 2 |
| Vermont | Legal, limited | Launched January 11, 2024; three operators |
| Florida | Legal, restricted | Hard Rock Bet only under Seminole compact |
| Mississippi | On-property app only | No statewide mobile wagering |
| Montana | Restricted locations only | Lottery terminals and approved app venues |
| California | Illegal | Prop 26 and Prop 27 failed November 2022 |
| Texas | Illegal | No legal framework as of 2026 |
| Utah / Hawaii | Illegal | No legal gambling of any kind |
Which Operators Are Legal in Which States?
DraftKings and FanDuel together hold roughly 70% of US online sports-betting handle and are licensed in the majority of legal states. BetMGM, Caesars Sportsbook, ESPN BET, Fanatics Sportsbook, bet365, BetRivers, Underdog Sports, and Hard Rock Bet are also active across multiple states. North Carolina's authorized books include bet365, BetMGM, DraftKings, ESPN BET, Fanatics, FanDuel, Underdog Sports, and Caesars. Illinois has up to 26 licenses with BetRivers, Circa, and others active alongside the national brands.
Arizona recorded a cumulative handle of $648.2 million in a single month with 17 active sportsbooks. Tech Insider's legal US sportsbook tracker keeps state-by-state operator counts current. For a side-by-side operator comparison, the best sportsbooks for over under bets page ranks verified options by state availability, odds, and features.
How Taxes Apply Once You're in a Legal State
Winning a totals bet in a legal state doesn't end your obligations. All gambling winnings are federally taxable income. A W-2G is issued when net winnings exceed $600 and are at least 300 times the wager. Starting tax year 2026, the new across-the-board W-2G reporting threshold rises to $2,000 under the 2025 federal tax bill. Federal withholding at 24% kicks in on net winnings above $5,000 that also clear the 300× threshold.
The taxes on over under winnings: W-2G thresholds and federal rules for 2026 page covers recordkeeping, deductions, and what changed for tax year 2026. Understanding the odds you're getting in a legal market also matters — see -110 odds explained for how the standard juice affects every totals payout.