401(k) Early Withdrawal Penalty Calculator
Estimate the 10% early-withdrawal penalty plus income tax on a 401(k) or traditional IRA withdrawal before age 59½ — and see what you'd actually take home.
Under age 59½, so a 10% penalty applies on top of income tax.
| Gross withdrawal | $25,000 |
| Federal income tax | $5,500 |
| State income tax | $0 |
| Early-withdrawal penalty | $2,500 |
| Effective loss | 32% |
Estimate only. Income tax uses your marginal rate applied to the full withdrawal; a large withdrawal can push part of it into a higher bracket. Excludes exceptions to the penalty (see FAQ) and any employer plan rules. Not tax advice.
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How this calculator works
Who this is for
Anyone thinking about tapping a traditional 401(k) or IRA before retirement age and wanting to see the real, after-tax-and-penalty cost before deciding. The sticker amount and the amount you actually keep can be very different.
How the cost adds up
A withdrawal from a pre-tax retirement account is taxed as ordinary income in the year you take it. If you're under 59½, the IRS adds a 10% early-withdrawal penalty on top. So the total hit is your income tax plus, if applicable, that 10% penalty.
This calculator applies your marginal federal rate (and optional state rate) to the withdrawal, adds the penalty when your age is below 59½, and shows the net you'd keep.
A worked example
Take a $25,000 withdrawal at age 45 in the 22% federal bracket with no state tax: $2,500 penalty + $5,500 federal tax = $8,000 gone, leaving $17,000 — an effective loss of 32% before you spend a dollar.
Caveats
Income tax here uses a single marginal rate; a large withdrawal can spill into a higher bracket, so treat the tax figure as an estimate. Several penalty exceptions exist, and Roth accounts follow different rules. Confirm your situation with a tax professional.
Frequently asked questions
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This site is for educational purposes only and does not constitute financial advice.