Filing Status Comparison Calculator

How filing status changes your 2026 federal tax bill

Your filing status does two things at once: it sets your standard deduction and it picks which bracket schedule applies to your income. Both move your tax bill, often by thousands of dollars at the same income. That is why the same person can owe very different amounts depending on the status they file under.

Here are the 2026 base standard deductions under the One Big Beautiful Bill Act (P.L. 119-21):

The calculator subtracts the right deduction for each status, runs the progressive brackets, and then recommends the lowest-tax option, but only among the statuses you are eligible for. If you want to see exactly how each dollar is taxed, the tax bracket calculator breaks down the brackets in detail.

The four filing statuses, and who is eligible for each

You cannot freely pick a status to chase the lowest number. Eligibility comes first.

Single applies when you are unmarried and do not qualify as Head of Household. One person, one income.

Head of Household needs two things at once: a qualifying child or dependent living with you, and proof that you paid more than half the cost of keeping up the home. In exchange you get a $24,150 standard deduction and wider low-rate brackets than Single.

Married Filing Jointly combines both spouses' income onto one return with a $32,200 standard deduction. It is available only to legally married couples.

Married Filing Separately lets each spouse file their own return. The household's combined tax is each spouse's separate tax added together, and both spouses must use the same method (both standard or both itemized). If one of you itemizes, the other cannot take the standard deduction.

Married Filing Jointly vs. Separately: when separate filing actually wins

For most couples, especially single-earner households, Married Filing Jointly produces the lower tax. Separate filing tends to win only in specific situations: lowering payments on an income-driven student-loan plan, clearing the medical-expense deduction floor that is based on a single spouse's lower AGI, or keeping one spouse's tax liability separate from the other's.

The catch is credits. Married Filing Separately disallows the Earned Income Tax Credit outright and restricts education credits, the Child and Dependent Care Credit, and the student-loan-interest deduction. A separate return can show a slightly lower raw tax and still leave the household worse off once those lost credits are added back. For a deeper look at the joint-versus-two-singles math, see the marriage tax penalty calculator.

Single vs. Head of Household: the dependent that opens bigger savings

At the same income, Head of Household almost always beats Single, because the deduction is larger and the low brackets are wider. Take a parent earning $60,000. As a Single filer they subtract $16,100 and tax $43,900. As Head of Household they subtract $24,150 and tax $35,850, and that smaller taxable amount also climbs through more generous brackets. The result is a meaningfully lower bill.

The cost of admission is a qualifying person. You need a qualifying child or dependent living with you, and you must have paid more than half the cost of running the home. Without both, you file Single. Once you know which status fits, the itemized vs. standard deduction calculator helps confirm whether the standard deduction or itemizing leaves you ahead, and the tax refund estimator turns the chosen status into a full-return estimate. You can also run the whole return in the Tax47 app with credits and 2026 OBBBA rules included.