Idaho Gambling Tax Calculator
This calculator provides estimates for informational purposes only. It is not tax advice. Tax laws change frequently and individual circumstances vary. Consult a qualified tax professional for advice specific to your situation. Tax rates and rules reflect 2026 tax year. Last updated April 2026.
Gambling tax in Idaho
Idaho charges a flat 5.3% and allows gambling losses to offset winnings. That rate sits above most other flat states, so the gap between being able to use your losses and not being able to matters more here in absolute terms than it does at a lower rate.
Idaho at a glance
The higher the flat rate, the more the deduction is worth
Every flat state that allows loss offsets charges its rate on the same base, your net gambling income. What differs is what a dollar of unusable loss costs you. At Kentucky 3.5% a stranded $10,000 of losses costs $350 in state tax; at Idaho 5.3% the same $10,000 costs $530. Because losses are only usable if you itemize, the practical question in Idaho is not whether the rate is competitive but whether your total itemized deductions clear the standard deduction. If they do not, the state applies 5.3% to gross winnings and the higher rate works against you on the larger base.
Idaho gambling tax FAQ
What is the Idaho rate on gambling winnings?
A flat 5.3% on gambling income after allowable loss offsets.
Does Idaho allow gambling loss deductions?
Yes, following the federal treatment, which requires itemizing.
Betting outside Idaho?
The main gambling tax calculator covers all 51 US jurisdictions, with the same federal brackets, the 90% loss deduction cap and the standard versus itemized comparison.
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