Cannot remember the amount of income(probably around $40) I received from participating in research

[alicexinyu]

I have participated in 3-4 studies/researches and received around $10-15 for each one in the past year. But I cannot remember the exact amount of income I had. What can I do?

Thank you for your advice.

[Irene2805]

You can estimate your income from the research studies.  Maybe checking your bank account to look for deposits made will help.

[swoophorse]

If the research company did not issue a 1099 you could just not claim the income. I would just estimate the income. 

[LeonardS]

You can enter the income on Schedule 1 Form 1040 Line 8 as other income.  The research company does not have to issue Form 1099-MISC for amounts less than $600.