Yes, you can file if you have cash income...from Self-employment work
However, for Earned Income Credit (EIC or EITC), you have to show a profit for "working" for cash. Retirement income, investments, interest, and SS doesn't count.
It actually has to be either a W-2.......or, apparently in your case, cash from self-employment work that is carefully recorded as to when & why cash was received vs business expenses.
Whether there is any EIC to be obtained...that depends entirely on the exact details of how much total income that you have from any source.
Read this carefully:
https://www.irs.gov/credits-deductions/individuals/earned-income-tax-credit/do-i-qualify-for-earned-...
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
