That's unheard of. What form did they submit; 1040-ES, 1040-V, box 4 of your 1099-Misc or something else?
The simple answer to your question is that any money you are paid or were paid on your behalf is reportable income. The proper way would have been for the payer to include it on your 1099-Misc. If not, you'll be given a chance to enter it separately in TT. After entering your 1099-Misc, you'll be asked if you received other money.
