DianeW
Expert Alumni

Business & farm

You can decide how to split the expenses to produce the lowest tax liability on the combined returns.  As you noted, if one spouse itemizes deductions the other is required to itemize even if they have little to no expense.

Try several scenarios in TurboTax and then use the one that works best for your overall tax situation.  

Attached is a checklist for itemized deductions so you don't forget anything.

Occasionally filing separate works better because of a state tax situation where the overall tax when combining federal and state is lower filing separately.  Ohio is an example where this sometimes works out better.

Married filing jointly is most often the best filing status for the lowest amount of tax, while married filing separately eliminates some credits, requires both to itemize deductions if one files that way, regardless if the other spouse has enough deductions.

Best advice is to prepare a married filing joint return and then married filing separately to see what status provides the best overall total tax.  The total tax will be the number on line 12 Form 1040EZ, or line 39 Form 1040A or line 63 Form 1040

NOTE:   Check your state tax rules because some states require you to use the same status on the state return that is used on the federal return.

  • To review your Form 1040 in TurboTax Online:
    • Select My Account at the top
    • Tools
    • View Tax Summary
    • Preview My 1040 (above)