Did you receive a 1099 NEC or 1099-MISC for it? If so, then after you enter the 1099, you will need to select that this is either not earned as an employee or self-employed if you received a 1099-NEC. If you received a 1099-Misc, then you will select that it did not involve an intent to earn money. This will keep it from being taxed as self-employment income.