Question 1

Is this official IRS guidance?

Accepted Answer

No — it is an educational estimator. Actual liability depends on credits, AMT, state tax, and current law. Consult a CPA or enrolled agent.

Question 2

What is a marriage penalty?

Accepted Answer

When combined tax filing jointly exceeds the sum of two separate returns, often when both spouses have similar high incomes.

Question 3

Should we always file jointly?

Accepted Answer

Most couples file jointly for lower rates and credits, but separate filing can help in specific student loan or medical deduction situations. Model both.

Marriage Tax Calculator

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