In general, taxpayers can claim a deduction for wagering losses to the extent of wagering winnings. (Code Sec. 165(d)) However, under pre-Act law, other deductions connected to wagering (e.g., transportation, admission fees) could be claimed regardless of wagering winnings.

New law. For tax years beginning after Dec. 31, 2017 and before Jan. 1, 2026, the limitation on wagering losses under Code Sec. 165(d) is modified to provide that all deductions for expenses incurred in carrying out wagering transactions, and not just gambling losses, are limited to the extent of gambling winnings.