US Gambling Laws: Federal Rules and State Guide

Start with the activity, not just the state

Before asking whether a state allows gambling, identify the activity and how it is offered. A casino floor, a mobile sportsbook and a cash-prize promotion can fall under different rules. Michigan, for example, publishes separate lists of authorized internet gaming and internet sports betting operators.^[1]

See which states allow legal online gambling and casinos for the current casino map, ages and official operator checks.

For peer-to-peer games, our US online poker legality guide separates operating poker rooms from state frameworks that have not launched.

The federal fantasy-contest exclusion has conditions and does not displace state law.^[2] Casino-style sweepstakes also need a separate analysis; our sweepstakes casino legality guide explains the model and state-level restrictions.

Find your state's official gambling sources

Select a state or DC to find an official regulator, legal guide or statute. Each entry identifies its scope. Some states divide oversight among several bodies, so a lottery or racing source may be only one part of the answer.

The map is a directory, not a legal-status classification. It does not mean every listed state permits casinos, online gambling or sports betting. For tribal gaming, also consult the relevant tribal gaming authority and any applicable compact. The National Indian Gaming Commission's guidance explains how those responsibilities differ.

Our Texas gambling laws guide and California gambling laws guide explain each state's permitted activities, tribal framework and private-game conditions. Its dedicated Texas sports betting guide covers apps and legalization proposals in more detail.

Who regulates gambling in the United States?

The authorities below have different responsibilities. They can apply to the same activity; they are not three interchangeable sources of a gambling license.

Class III gaming generally requires an approved tribal ordinance, a state that permits the relevant gaming and a tribal-state compact in effect. Federal law also provides for Secretarial procedures in certain circumstances. State involvement therefore differs from the licensing of a commercial casino.^[4]

A tribal casino does not automatically have permission to offer online gambling nationwide. Current federal compact regulations contemplate certain statewide remote-wagering arrangements, subject to conditions involving state law, the compact, tribal regulation and player location. Other applicable federal law still matters.^[6]

What the main federal gambling laws do

These laws address different conduct. Reading one in isolation can produce the wrong answer about a particular game or player. The table summarizes their practical role; the linked texts contain the detailed definitions, exceptions and conditions.

The Wire Act ruling above is a First Circuit decision, not a Supreme Court holding. Its information exceptions are not a general permission to transmit actual sports bets across state lines.^[3]

UIGEA also led to rules requiring covered payment-system participants to maintain procedures intended to identify and block or otherwise prevent restricted transactions. A successful payment is not a legal clearance for the operator or customer.^[9]

How to check a gambling operator

Start with the official authority's records. A familiar brand, an app-store listing or a license logo does not establish permission for the particular product where you are.

1. Identify the product and channel. Separate casino games, poker, sports wagering and prize promotions. Check whether the permission covers a physical venue, internet play or both.
2. Check location and eligibility. Read the applicable state or tribal requirements and the operator's authorized terms, including age, physical location and self-exclusion restrictions. An account address is not a substitute for a location check.
3. Find the right official record. Use the state finder above, then open the relevant license or operator list. If that agency only handles lotteries or racing, find the authority responsible for your activity.
4. Match the operator and product. Compare the legal entity, trading name and exact website or app. Read the license's scope and any conditions rather than relying on a similar name.
5. Check that permission is usable now. An introduced bill, an enacted law, an operator approval and a launched service are different stages. Verify the effective date and current operating permission before treating a headline as authorization.

A practical example: Michigan. Open the Gaming Control Board's legal operator lists. The page separates internet gaming from internet sports betting. Follow the appropriate list and match the destination website to the service you intend to use. The same page lists enforcement actions, but warns that its list of unlicensed operators is not exhaustive. Absence from that enforcement list is therefore not evidence of approval.^[1]

For a dispute, check the operator's complaint process and the responsible regulator's route. If gambling is causing harm, the National Problem Gambling Helpline can connect you with support resources.

Common questions about US gambling laws

Can I use my account while visiting another state?

Do not assume permission follows the account. Check the rules where you are physically located and whether the operator is authorized there for the same product. UIGEA's intrastate exclusion, for example, includes conditions concerning express state authorization and age and location safeguards.^[2] A business operating in two states may still offer different products or apply different restrictions in each. Crossing a border calls for another check, not simply another login.

Is the gambling age 18 or 21?

There is no reliable single-age answer for every US gambling activity. State, product and tribal rules matter. Connecticut, for example, requires 21 for casino gaming and sports wagering, but 18 for fantasy contests, lottery games and keno.^[10] Check the rule for the specific activity and venue. Being old enough to enter one type of contest does not establish eligibility for another, and meeting the age requirement does not settle the operator's authorization or other restrictions.

Is an offshore gambling license enough?

An overseas license does not by itself establish authorization to serve players in a US state. Check the domestic authority responsible for the product. Michigan, for example, directs readers to its licensed operator lists and says only operators licensed by the Gaming Control Board may legally offer online gaming in Michigan.^[1] A website accepting a registration or payment is not a substitute for that check. This also affects where a customer can turn if a dispute arises.

Can a player break the law if federal rules target businesses?

Separate state law can still apply to players. Washington, for example, prohibits knowingly transmitting or receiving gambling information over the internet, with an exception for activities authorized under its gambling chapter.^[11] The Wire Act's betting-business element and UIGEA's payment-acceptance prohibition do not create a general exemption from those local rules.^[3][2] Check the conduct covered, the location and any applicable exception. Do not infer legality from a lack of reported prosecutions. Advice about your own conduct needs to address the relevant jurisdiction and facts.

Are prediction markets governed by the same rules as sportsbooks?

Prediction-market event contracts raise a separate federal derivatives-law question. The CFTC has asserted exclusive jurisdiction over regulated event-contract markets, while state authorities have continued taking action against sports-related products. Connecticut announced further enforcement in September 2026.^[12][13] Those competing positions do not establish a uniform nationwide answer. A regulated exchange and a state-licensed sportsbook are different legal arrangements; check the specific product, location and current orders rather than treating either label as conclusive. Our Texas prediction markets guide shows how those distinctions apply to a specific state.

For online and in-person sportsbook availability, see our legal sports betting states guide, with a state map, location restrictions and official operator checks.