Do all states allow the 401(k) pre-tax deduction?

Most states conform to federal law treating 401(k) deferrals as pre-tax, but Pennsylvania and New Jersey tax contributions at the state level even though the federal deduction applies.

How does a Roth 401(k) differ for state taxes?

Roth 401(k) contributions are made after-tax at both federal and state levels, so there is no current-year state deduction, but qualified distributions are generally tax-free.

State Tax Deduction for 401(k) Contribution Calculator

Estimate your combined federal and state tax saving per dollar contributed to a 401(k), factoring in states that conform to federal treatment and those with their own retirement contribution rules.

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State Tax Deduction for 401(k) Contribution Calculator

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Frequently Asked Questions

Do all states allow the 401(k) pre-tax deduction?

How does a Roth 401(k) differ for state taxes?