Some things to check.
Even if you entered the same amounts there are a lot of other things that you might have answered differently. Like your filing status, birthdate, dependents, if you answered a dependent question wrong you might not be getting the same credits for them. You might have qualified for Head of Household on one return but not on the other. Or if you are a dependent you might have missed checking the box that says you can be claimed on someone else’s return.
A common difference is not entering qualified dividends and capital gains from 1099 DIV box 1b and 2a.
Did you have any 1099R forms for a RMD, Required Minimum Distribution? Turbo Tax has a problem with those this year.
If you get Social Security the taxable amount on 1040 line 6b might have been calculated differently.
