Indiana sportsbooks processed $491.4 million, in April 2026 wagers up 12%, state tax revenue of $4,660,040 followed the same trajectory, rising 37.1% from $3.4 million and marking Indiana’s best March tax result since 2023.

The sport composition data adds crucial texture: basketball bets totaling $219.3 million and parlay wagers of $175.1 million together accounted for 76.2% of all March handle — a concentration that makes Indiana’s March revenue exceptionally sensitive to tournament outcomes and how frequently multi-leg bets cash.

The four-year trend complicates the picture further. Indiana’s March handle has not followed a clean upward trajectory: $433.0M in 2023, $500.8M in 2024, $553.6M in 2025, $517.8M in 2026.

That 2025 peak now looks like an outlier rather than a trend line, and the 2026 figure pulls back toward a range that 2024 already established. Over four years, handle has grown just 19.6% a modest compound rate for a market that launched in September 2019 and should, in theory, still be in a growth phase.