The Missouri legislature is considering a new bill that would significantly increase the gambling tax burden. Initiated by Republican State Representative Jeff Knight, Bill HB 3533 will directly impact the thirteen casinos within the state and the nascent sports betting platforms. The casino entry fee, which has been maintained at $2 since the legalization of gambling in the state in 1994, will be significantly increased to $5.5 and will be charged every two hours instead of just once per entry. Knight estimates that this tax reform will generate about $470 million in revenue.

Entry Fee Tied to Historical Debt and Inflation
Proponents of the bill anchor the tax increase logic on a historical debt that has lasted for over thirty years. The current $2 entry fee, set since 1994, has never been adjusted, and Representative Barry Howvis directly points out that the inflation-adjusted equivalent has risen to about $4.31. Representative Tim Taylor admits that this issue has been ignored for decades. The bill also requires the entry fee to be automatically adjusted annually in line with inflation and plans to allocate $15 million from the net revenue of the Gambling Commission to the Department of Natural Resources Historical Preservation Revolving Fund.
Mike Winter, a lobbyist for the Missouri Gaming Association, opposes this, warning that the bill will impose a burden of over $500 million on casinos and suggests that this will significantly reduce the attractiveness of Missouri's gambling investments. The Missouri Chamber of Commerce also opposes, calling for caution in imposing additional taxes in specific industries to avoid the problem of picking winners and losers.
Sports Betting Newborn Targeted
Missouri's sports betting market has just learned to stand and has been pushed onto the dissection table. The market officially started on December 1, 2025, with nearly $1 billion in bets in the first two months, but the taxable income was significantly compressed after promotional deductions, with the state treasury actually receiving less than $700,000 in taxes, with the current statutory tax rate only at 10%. HB 3533 attempts to plug this tax gap by imposing a 1.5% remote betting channel fee, calculating taxes directly based on gross revenue before promotional deductions, and adding a new 13% gambling revenue surcharge and 24% sports betting revenue surcharge.
The first $35 million in revenue from the remote betting channel fee will flow into the Historical Preservation Revolving Fund, and regarding the constitutional controversy over whether the voter-approved constitutional amendment can be amended through ordinary legislative procedures, Committee Chairman Jeff Myers only stated that he will handle this issue separately.
Alternative Revenue Engine under Tax System Transformation
Behind HB 3533 is a larger fiscal undercurrent. Missouri's decision-makers are evaluating a radical tax restructuring plan centered on completely abolishing or significantly reducing income tax, with related constitutional amendments already advanced by the legislature and possibly submitted to a statewide referendum later this year. Income tax currently accounts for a significant portion of Missouri's fiscal revenue, and as it gradually phases out, the state government needs to fill a multi-billion dollar gap with alternative sources of income such as casino fees and gambling taxes.
PASA's official website continues to track the legislative progress and tax system transformation dynamics of gambling tax policies in various states in the US, noting that Missouri's tax increase scheme involves not just a one-time incremental adjustment, but a core alternative engine in the state's financial structure's transformation process from an income tax-dominated model to a consumption tax-led model.
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