The extended income tax deadline is coming up next Monday, May 17. Tax filers this year will have to grapple with pandemic-related complexities like how to handle those federal stimulus payments. Accountant Angel Li of Glastonbury-based firm FML says the only slightly confusing scenario here is if those stimulus payments never came. Speaking on All Things Considered, Li also gave advice on the tax implications of 2020 unemployment payments, as well as how to take advantage of the new federal child tax credit.