Kentucky imposes state income tax on gambling winnings, which means that a big Derby score — whether you hit a straight win bet or an exotic like a trifecta — doesn't stop at the federal level. Before I started tracking my own wagering results session by session, I assumed state taxes were an afterthought. They aren't. Understanding both layers of taxation, and the conditions under which you can claw some of that liability back through deductions, is worth the effort before the first Saturday in May arrives.

For a full breakdown of federal withholding and W-2G reporting thresholds, see Are Kentucky Derby Winnings Taxable? IRS W-2G Rules and Federal Withholding. That page covers the point at which federal backup withholding at 24% kicks in — specifically when winnings exceed $5,000 and are more than 300× the wager — which is important context before layering Kentucky's state rules on top.

Does Kentucky tax horse racing winnings specifically?

Yes. State income tax on horse racing winnings varies by state, and Kentucky is among the states that impose state income tax on gambling winnings. That applies to Kentucky residents who cash a ticket at Churchill Downs and, depending on sourcing rules, may affect non-residents as well. If your state of residence also taxes gambling income, you could owe a return in both jurisdictions, though most states offer a credit to prevent true double taxation — check your home-state rules separately.

Can you deduct gambling losses on your Kentucky Derby wagers?

Gambling losses may be deducted only if you itemize deductions on your federal return, and only up to the amount of gambling winnings reported. So if I had $900 in Derby winnings across several Kentucky Derby Bet Types: Win, Exacta, Trifecta & More and $600 in documented losses, I could deduct the $600 — but never more than the $900 I reported as income. The deduction cannot create a net gambling loss that offsets other income.

The itemizing requirement is the critical hurdle. Because the standard deduction has risen substantially in recent years, most recreational bettors find that itemizing does not produce a better outcome than taking the standard deduction, which means gambling losses effectively go undeducted. Only taxpayers whose total itemized deductions — mortgage interest, charitable contributions, state and local taxes, and gambling losses combined — exceed the standard deduction threshold will actually benefit.

What records should you keep to support a loss deduction?

  • ADW account statements from platforms like TwinSpires or TVG showing dated wager history and settlement amounts
  • Paper tickets retained from on-track wagering at Churchill Downs
  • A personal log recording the date, type of bet, amount wagered, and result — something I maintain in a simple spreadsheet after every session
  • Any W-2G forms issued by the track or ADW operator

The IRS expects contemporaneous records, not reconstructed estimates. Knowing exactly How Pari-Mutuel Payouts Are Calculated for the Kentucky Derby also helps you verify that the gross payout figures on your W-2G match what you actually received, since the taxable amount is the full payout, not just the profit over your stake.

How do deposits and withdrawals factor into your tax records?

Your ADW account transaction history is some of the cleanest documentation available, because every deposit, wager, and withdrawal is timestamped. Platforms that support Derby wagering — and that you can fund through ACH, debit card, or PayPal — generate statements on demand. See How to Deposit and Withdraw on ADW Platforms for Kentucky Derby Bets for a rundown of which methods are commonly available, since the payment method can affect how quickly your records consolidate for tax purposes.

Legality note: tax obligations apply wherever wagering is legal in your state; residents of states without authorized ADW frameworks should confirm their ability to participate before depositing. 21+. Gambling problem? Call 1-800-GAMBLER.