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The Daily Insight

Is there a tax penalty for married couples?

Author

Andrew Mclaughlin

Published Mar 23, 2026

A couple incurs a marriage penalty if the two pay more income tax filing as a married couple than they would pay if they were single and filed as individuals. Conversely, a couple receives a marriage bonus if they pay less tax filing as a couple than they would if they were single.

What is the income tax marriage penalty?

The so-called “marriage penalty” kicks in when tax-bracket thresholds, deductions and credits are not double the amount allowed for single filers. If you were married at any point last year, you’re required to file your 2020 tax return as a married couple.

The so-called “marriage penalty” kicks in when tax-bracket thresholds, deductions and credits are not double the amount allowed for single filers. If you were married at any point last year, you’re required to file your 2020 tax return as a married couple.

What is the marriage penalty and how did it arise?

Key Findings. A marriage penalty or bonus is the change in a couple’s total tax bill as a result of getting married and thus filing their taxes jointly. Marriage penalties occur when two individuals with equal incomes marry; this is true for both high- and low-income couples.

What’s the penalty for getting married and filing taxes?

Not every couple suffers a penalty when they marry. Getting married and filing taxes jointly can result in a marriage bonus of up to 21% of a couple’s income if the couple has children and up to 8% if they don’t, the Tax Foundation says.

How does filing separately or jointly impact married couples taxes?

Married Filing Separately means only the individual on the tax return is liable to the IRS for any tax bills and errors on the return. This filing status has the highest taxes, least allowed credits and deductions, and can make more of the income taxable in many circumstances, such as Social Security benefits.

Are there any marriage tax benefits for married couples?

In some cases, though, married couples filing jointly may have a marriage tax benefit, for example, where one partner has significantly greater income than the other.

Who is liberated from the marriage tax penalty?

The liberation from the marriage tax penalty or the presence of a marriage tax subsidy only applies to a defined group of couples, i.e., those without dependent children, with unequal earnings, who do not claim some common deductions, and/or who are not collecting Social Security benefits.