Yes, you do have to report all National Football League gambling winnings on your tax return as taxable income.
If your winnings are at least 300 times what you bet and over $600 (or otherwise subject to federal income tax withholding), the agency where you placed the bet is required to report your winnings to the IRS and send you a Form W-2G, Certain Gambling Winnings, as the payer.
Even if the agency isn’t required to issue a Form W-2G, you must still claim your winnings on your tax return. If the gaming organization doesn’t withhold tax from your winnings, and those winnings were substantial, you should pay those taxes yourself in the form of estimated tax payments in order to avoid an underpayment penalty.
To report your gambling winnings, enter the amount under “Other Income” on your Form 1040. You may also be able to deduct any gambling losses as an itemized deduction, which you’ll report on a Schedule A.