401(k) early withdrawal penalty calculator.

How the penalty is calculated

A distribution from a 401(k) before age 59½ is taxed twice. First, the taxable part is added to your income and taxed at your normal rate. Second, section 72(t) adds a 10% additional tax on that taxable part unless an exception applies. The calculator takes your gross withdrawal, removes any after-tax or Roth basis (which is neither taxed again nor penalised), and applies the 10% to the rest. Federal income tax is your rate times the taxable part; state tax is the same with your state rate; the exception reduces only the part the 10% applies to.

The tool shows what you keep (net), the total cost, and the cost as a percent of the withdrawal. It also compares a typical 20% mandatory withholding with your actual bill: a payout from an employer plan that you could have rolled over is generally withheld at 20% even if you plan to roll it over. Withholding is a prepayment, so the difference is what you may owe, or get back, when you file.

The exceptions, and the limits

The list the calculator offers comes from the IRS table of exceptions for qualified plans. Some remove the 10% on the whole distribution; others cover only a capped amount, so a withdrawal larger than the cap is penalised on the excess.

• Whole distribution: age 59½ or older; separation from service in or after the year you turn 55 (50 for qualified public safety employees); total and permanent disability; death; terminal illness with physician certification; substantially equal periodic payments; an IRS levy; payments to an alternate payee under a qualified domestic relations order; qualified military reservists called to active duty.
• Emergency personal expense (SECURE 2.0): one distribution per calendar year, up to the lesser of $1,000 or the vested balance above $1,000, for distributions after December 31, 2023.
• Domestic abuse victim (SECURE 2.0): the lesser of $10,000 or 50% of the vested balance. The IRS page shows $10,000; the amount can be indexed, so check the current Form 5329 instructions.
• Birth or adoption: up to $5,000 per child.
• Federally declared disaster recovery: up to $22,000.
• Medical expenses: only the unreimbursed amount above 7.5% of your adjusted gross income.

Exceptions that exist only for IRAs, such as first-time homebuyer, higher education and health insurance while unemployed, do not apply to a 401(k) and are not offered here. The calculator applies one exception at a time.

Worked examples (hypothetical figures, real rules)

No exception. A 45-year-old cashes out $20,000 at a 22% federal rate and a 5% state rate. The 10% additional tax is $2,000.00, federal income tax is $4,400.00 and state tax is $1,000.00. The total cost is $7,400.00, or 37.0% of the withdrawal, leaving $12,600.00. The 20% withholding at payout would be $4,000.00, so about $3,400.00 more is due at filing.

With a domestic abuse exception and a vested balance of $80,000, the exempt amount is $10,000 (the lesser of $10,000 and half of $80,000). The 10% applies only to the other $10,000: $1,000.00, which saves $1,000.00. Income tax is unchanged because the exception removes only the additional tax.

With after-tax basis. If $6,000 of the $20,000 is after-tax money, only $14,000 is taxable and penalised. The penalty is $1,400.00 and the total cost $5,180.00.

With medical expenses. With AGI of $60,000 and $9,000 of unreimbursed medical costs, only the amount above 7.5% of AGI ($4,500) counts, so $4,500 is exempt and the penalty is $1,550.00.

Mistakes people make

• Treating the 20% withholding as the whole bill. Withholding is not the tax. At a high bracket, you can owe much more.
• Counting a loan as a withdrawal. A plan loan that you repay on schedule is not a distribution. See the 401(k) loan calculator.
• Forgetting the state. Many states tax the distribution, and a few add their own penalty.
• Assuming a hardship withdrawal avoids the 10%. The IRS says hardship distributions may carry the 10% additional tax, and they cannot be repaid or rolled over.
• Missing the form. If the distribution code on Form 1099-R does not match your exception, you may need Form 5329.

Who this is for, and what it does not cover

It suits anyone weighing a withdrawal from a 401(k) or similar qualified plan before 59½. It does not model Roth earnings ordering, the five-year rules, IRA-specific exceptions, the 25% SIMPLE IRA rule in the first two years, net unrealised appreciation on employer stock, or the interaction of the added income with credits and phase-outs. Your plan can restrict withdrawals, so confirm what it allows.

FAQ

What is the penalty for withdrawing from a 401(k) early?

A 10% additional tax on the taxable part of a distribution taken before age 59½, unless an exception applies (section 72(t)). The distribution is also added to your taxable income and taxed at your normal rate, so the total cost is higher than 10%.

At what age can I take money out of a 401(k) without the 10% penalty?

At 59½. You can also avoid it if you leave your employer in or after the year you turn 55 (age 50 for qualified public safety employees), and withdraw from that employer's plan.

What are the SECURE 2.0 penalty exceptions?

Emergency personal expenses (one per year, up to $1,000), domestic abuse victims (the lesser of $10,000 or 50% of the vested balance), terminal illness, birth or adoption (up to $5,000 per child) and federally declared disaster recovery (up to $22,000), among others. Each has conditions, so check the IRS exceptions table.

Is the 20% withholding the same as the penalty?

No. The 20% is mandatory income tax withholding on a payout from an employer plan that could be rolled over. It is a prepayment on your income tax. The 10% additional tax is separate and is figured when you file.

Does the 10% penalty apply to Roth 401(k) money?

It applies to the taxable part of a distribution. Contributions you already paid tax on are not taxed again, so this tool lets you enter that basis. How earnings in a Roth account are treated, and the ordering rules, are not modelled here.

Can I avoid the penalty with a hardship withdrawal?

Not automatically. The IRS says hardship distributions are subject to income tax and may also carry the 10% additional tax. A hardship withdrawal also cannot be repaid to the plan or rolled over.

Do I report the penalty on my tax return?

Yes. If Form 1099-R shows distribution code 1 and you do not qualify for an exception, you generally report the tax on Schedule 2 without filing Form 5329. File Form 5329 if the code is missing or wrong, or if you claim an exception that the code does not show.

Does a 401(k) loan avoid the early withdrawal penalty?

A loan that follows the rules is not a distribution, so there is no income tax or 10% additional tax. If you miss payments or exceed the limit, the unpaid balance can be treated as a distribution.

Sources

Retrieved 2026-10. Each link was opened and checked against the claim next to it.

• IRS: Exceptions to tax on early distributions: the full exception list for qualified plans and the SECURE 2.0 amounts.
• IRS Topic no. 558: Additional tax on early distributions: 10% additional tax, Form 5329 and distribution code 1.
• 26 U.S.C. 72(t): the 10% additional tax, the 59½ exception and the emergency and domestic abuse limits.
• IRS Topic no. 413: Rollovers from retirement plans: mandatory 20% withholding on a rollover-eligible payout.
• IRS: Hardship distributions: hardship distributions are taxable, may carry the 10% tax, and cannot be rolled over.