It depends. If your total income was $250.25 and you did not make any other income in the year, the you don't have to file taxes. However, if you have other income which exceeds the standard deduction limits ($12,550 for single taxpayer) then you will have to file taxes.
So if all your self employment income (DoorDash and other Self Employed Income) was below $400, then you don't have to file taxes. However, if you have other sources of income and they exceed $12,550 for single filing status, then you will have to file.
