AGA: Illegal Gambling Market Hits $53.9B in Annual Revenue

The American Gaming Association released analysis in August putting the illegal gambling market in the United States at an estimated $53.9 billion in annual revenue, generated by unregulated gaming devices, offshore sportsbooks and illegal online casinos. The associated tax shortfall to states exceeds $15 billion a year.

Quick answer: The AGA estimates unregulated gaming devices, offshore sportsbooks and illegal online casinos produce roughly $53.9 billion in annual US revenue, depriving states of more than $15 billion in tax receipts. That figure is roughly five times the size of the entire regulated US iGaming market.

Putting $53.9 Billion in Context

The scale is easier to grasp by comparison. Regulated US iGaming revenue across seven states reached $10.74 billion for the year. The illegal market, on the AGA's estimate, is roughly five times larger.

That ratio is the argument the industry has been making for years, now with a number attached. Every state that has declined to regulate online casino still has residents playing online casino games; the revenue simply flows to operators outside the jurisdiction, with no tax contribution, no responsible gambling requirements and no consumer protection framework.

The Three Components

Unregulated gaming devices

So-called skill games and grey-market terminals in bars, convenience stores and truck stops account for a substantial share of the total. These machines operate in a legal ambiguity that varies dramatically by state, and litigation over their status has been running for years in several jurisdictions.

Offshore sportsbooks

Despite widespread legal sports betting, offshore books retain a meaningful customer base. Their appeal typically comes down to credit-based play, higher limits, and the absence of the identity verification that regulated operators require.

Illegal online casinos

Offshore casino sites serving residents of the 43 states without regulated iGaming. These are the fastest-growing component, and the one most directly addressable through state-level legalization.

Why the Consumer Protection Argument Matters

The tax figure gets the headlines, but the consumer protection gap is the more consequential difference. A regulated operator is subject to a set of requirements that an offshore site simply is not:

• Independent testing of game fairness and payout percentages
• Segregation of player funds from operating capital
• Mandatory age and identity verification
• Deposit, loss and session limit tools
• Self-exclusion programs recognized across the state
• A state regulator with authority to resolve disputes

A player whose offshore account is frozen has no recourse. A player on a licensed site has a regulator. That difference is invisible until something goes wrong, which is precisely why it gets underweighted by consumers choosing between the two.

The Regulatory Response Is Accelerating

State regulators have moved considerably more aggressively in 2026 than in previous years, particularly against the sweepstakes casino model that occupies the space between regulated and offshore.

Illinois regulators launched one of the largest enforcement actions yet, ordering 65 sweepstakes operators to block state residents or face civil and criminal penalties. Maine's LD 2007 prohibits online sweepstakes games that simulate casino-style gaming. Oklahoma lawmakers overrode a gubernatorial veto of Senate Bill 1589, which updates the state's gambling statute to explicitly address dual-currency payment systems. Mississippi and Iowa have advanced comparable measures.

The common thread is dual-currency mechanics. Sweepstakes operators have argued their model falls outside gambling statutes because purchases nominally buy a non-redeemable currency, with the redeemable currency provided free. Legislatures are closing that gap by writing dual-currency systems directly into the statutory definition of gambling.

The Prediction Market Complication

A parallel regulatory fight is playing out over sports prediction markets. Kalshi and Polymarket operate under Commodity Futures Trading Commission oversight and are technically available nationwide, including in states with no legal sports betting.

Several states have pushed back. Kalshi and Polymarket appeared before US District Judge Katherine Menendez seeking to block Minnesota's first-in-the-nation prediction markets ban ahead of its August 1 effective date, with the judge questioning whether sports event contracts are meaningfully different from traditional sports betting. Washington obtained a state court order requiring Kalshi to implement certain restrictions. North Carolina has advanced measures imposing a state tax on prediction market revenue, choosing fiscal regulation over prohibition.

This matters to the illegal market question because prediction markets are, at minimum, federally regulated and subject to disclosure requirements. Whether they belong in the same conversation as offshore sportsbooks is exactly what the courts are now deciding.

What It Means for Players

The practical guidance is unchanged and straightforward: play on operators licensed in your state. The protections are real, the recourse exists, and the difference in odds or promotional generosity rarely compensates for the risk.

If your state does not have regulated online casino or sports betting, the honest answer is that your legal options are limited, and the offshore alternative carries risks that are easy to ignore until they materialize. Our gambling guides cover the current legal status by state and vertical.

Frequently Asked Questions

How big is the illegal gambling market in the US?

The American Gaming Association estimates $53.9 billion in annual revenue from unregulated gaming devices, offshore sportsbooks and illegal online casinos, costing states more than $15 billion in tax revenue each year.

Why do people use offshore gambling sites?

Common reasons include living in a state with no legal option, credit-based play, higher betting limits, and avoiding identity verification. Each of those conveniences comes at the cost of losing all regulatory protection.

Are sweepstakes casinos legal?

It depends increasingly on the state. Illinois has ordered 65 operators to block residents, and Maine, Oklahoma, Mississippi and Iowa have all advanced restrictions targeting dual-currency models. The regulatory direction is clearly tightening.

Are prediction markets the same as sports betting?

Legally, that is the open question. Kalshi and Polymarket operate under CFTC oversight and are available nationwide, but several states have moved to ban or tax them, and courts are actively examining whether sports event contracts differ meaningfully from sports wagers.

How can I tell if a gambling site is licensed?

Licensed operators display their state license number and regulator, and appear on the regulator's own published list of authorized operators. If a site accepts players from states where it is not listed, it is operating outside the regulated market.

Final Thoughts

A $53.9 billion illegal market alongside a $10.74 billion regulated online casino market is the clearest possible statement of where the industry's unfinished business lies. States are responding, but through enforcement against sweepstakes operators rather than through the expansion that would address the underlying demand.

Stay current on regulatory developments and state-by-state legality with the latest articles from DeucesCracked.