@ShirlynW Thanks for the additional information. Sorry I mentioned my parents combine income with SS is under the $28,700 so this would mean they wouldn't even need to file but should make my parents eligible as my dependents as I support them more than 51% and their gross income is less than $8,800
I already got my filing in and I put the portion "If you parents files a joint tax return solely to get a refund," as No although your point for the stimulus in 2020 makes sense to mark them as Yes. If I were to resubmit my parent's taxes as MFJ now would this cause an issue with my taxes since I already filed and marked "no" for my parents not filing a joint tax return solely to get a refund? Would I need to do a 1040x just to update that one checkbox on my taxes? I just filed over the weekend if that matter and already accepted by IRS and my state.
Although my parents didn't have to file since they always fell under the standard deduction last few years, they have a preference to do so even with no tax liabilities the last few years.
