When it May Make Sense for Married Couples to File Taxes Separate

Each year over 150 million tax returns are filed. For married couples, the overwhelming majority will choose to file joint tax returns. For most households, this makes sense considering the advantageous nature of tax brackets applying to joint returns. For example, the 24% marginal tax bracket applies to taxable income from roughly $200,000 up to $400,000 for joint returns. In contrast, a single filer at the top end of that taxable income range would be in the 35% marginal income tax bracket.

That said, there may be circumstances where married couples may consider filing separate tax returns. Note that married filing separately is a separate filing option. It’s not the same as two individuals merely filing single returns, there are some complicated rules involved. It’s critical to consult with a tax advisor who can conduct analysis to determine if that approach will yield a better outcome for the household.

Breakdown of income tax returns by filing status, IRS 2024

When to consider filing separately?

One spouse has significant out-of-pocket medical expenses

Very few taxpayers deduct medical expenses on their return. First, you must itemize deductions. Considering the significant increase in the standard deduction beginning with the 2018 tax year, most taxpayers claim the standard deduction. More importantly, one cannot deduct medical expenses until the total amount of expenses exceeds 7.5% of adjusted gross income (AGI). This is a very high threshold to meet. For that reason, if one spouse has lower income and a high level of deductible medical expenses there may be an opportunity to claim a deduction. Be aware that if one spouse filing separately itemizes deductions, the other spouse must also itemize deductions.