IRS Publication 529 — Miscellaneous Deductions
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tickets. Supplemental records include any receipts from the casino, parlor, etc.
Racing (horse, harness, dog, etc.). A record of the races, amounts of wagers, amounts collected on winning tickets, and amounts lost on losing tickets. Supplemental records include unredeemed tickets and payment records from the racetrack.
Lotteries. A record of ticket purchases, dates, winnings, and losses. Supplemental records include unredeemed tickets, payment slips, and winnings statements.
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