Colorado Sports Betting Tax Revenue Jumps 32% as Deductions Shrink
Betting volume barely moved. The state’s tax take surged anyway. That gap is the real story.
Colorado sports betting tax revenue reached $44.6m for the fiscal year through May 2026, a 32.22% rise on the same period a year earlier, according to figures released by the state’s Division of Gaming on 1 July. Yet total wagers grew just 1.58% to $6.02bn, and May’s monthly handle of $469m was down 5.3% year on year. The state is collecting far more tax on roughly the same amount of betting, and the reason has little to do with bettors.
What the Colorado sports betting tax revenue numbers actually show
Start with the headline figures. Fiscal year-to-date tax revenue stands at $44,608,551.01, up from $33,739,347.40 the year before. That is the 32.22% jump. Meanwhile, fiscal year-to-date wagers of $6,021,787,584.59 barely edged ahead of last year’s $5,928,348,579.51.
Now the monthly picture. May handle came in at $469m, a 10% drop from April and a 5.3% fall against May 2025. May tax revenue was $3.86m, down 11.31% month on month, though still 7.69% ahead of the same month last year.
Put those together and you get a market where the volume of betting has plateaued while the state’s share keeps climbing. Handle down. Tax up. That combination doesn’t happen on its own.
The free-bet deduction is the real driver
The mechanism sits in Colorado’s tax code, not its betting apps. For years, operators could deduct a percentage of their free-bet promotions from taxable revenue. That allowance has been shrinking on a fixed schedule. It fell to 1% of monthly free bets in January 2026 and disappears entirely on 1 July.
As the deduction shrinks, a larger slice of operator revenue becomes taxable, regardless of how much anyone actually wagers. Layer on the retention cap that Colorado voters removed at the ballot, which previously limited the state to keeping around $29m, and the current numbers make sense. The state is keeping more of a tax base it always had.
What this means for operators
For anyone running a sportsbook in Colorado, this reframes the market. The promotional model that built early market share, aggressive free bets to acquire and retain players, now carries a heavier tax cost. Every promotional dollar that used to soften the tax bill soon won’t.
That changes real decisions. Acquisition budgets built around bonus-heavy campaigns need re-checking against a higher effective rate. Retention strategies that lean on free bets lose part of their tax efficiency. The conversation in Colorado finance teams has already shifted from handle growth to margin protection.
The risk worth naming
There is a live concern that pricing promotions out of the market pushes bettors toward offshore books that offer richer incentives. Colorado hasn’t seen evidence of that at scale yet, and the flat-but-not-collapsing handle suggests the regulated market is holding. But it is the caveat that lawmakers in other states will study before copying the approach.
Future outlook
The full deduction removal lands on 1 July 2026, which means the current 32% rise likely understates where fiscal year 2026-27 ends up. State fiscal notes projected the change would add meaningful revenue once fully phased in. Expect the coming year’s figures to widen the gap between flat handle and rising tax even further.
The wider signal is what matters beyond Colorado. Several states are eyeing their own promotional deduction rules, and Colorado is now the clearest working example of how to grow tax revenue without touching the headline rate. Operators planning multi-state promotional strategies should treat this as a preview, not an isolated case.
For the record, the money has a destination. A large share of Colorado’s sports betting tax funds water conservation projects through the state’s Water Plan Grant program.
The question every operator should be asking is a simple one. If free-bet deductions are disappearing here, how long before they disappear everywhere?
Source: Colorado Division of Gaming
