401k Early Withdrawal Calculator
Updated August 2026 — reflects the 10% penalty and age 59½ rule.
Thinking about cashing out a 401(k) before age 59½? Enter the amount and your tax rates to see the 10% penalty, the income tax, and how much you’d actually keep — usually a lot less than the balance suggests.
What an early 401(k) withdrawal really costs
A withdrawal before age 59½ is hit twice: a 10% federal penalty, plus ordinary income tax at your federal and state rates. Someone in the 22% federal bracket with 5% state tax loses about 37% up front — so a $25,000 withdrawal nets around $15,750, before you even count the future growth you gave up.
The money you pull out is added to your taxable income for the year, so it’s taxed at your marginal rate — and a large withdrawal can push part of it into a higher bracket than the calculator’s single-rate estimate assumes. On top of that sits the flat 10% penalty. There’s no withholding trick that makes this cheaper; withholding just prepays some of the bill.
A worked example
Take $25,000 out at age 45, with a 22% federal rate and 5% state rate and no exception:
- 10% penalty: $2,500
- Federal income tax: $5,500
- State income tax: $1,250
- You keep: $15,750 — an effective loss of about 37%
And that’s only the visible cost. That $25,000, left invested for 20 more years at 7%, would have grown to roughly $96,000. The real price of an early withdrawal is usually the retirement balance you never build — see the projection on the main 401k calculator.
When the 10% penalty doesn’t apply
Several situations waive the 10% penalty — though never the income tax. The best known is the rule of 55: if you leave your job in or after the year you turn 55, withdrawals from that employer’s plan skip the penalty. Reaching age 59½ removes it for everyone.
- Age 59½. Once you reach it, the penalty is gone on all 401(k) withdrawals.
- Rule of 55. Separating from your employer in or after the year you turn 55 lets you tap that plan penalty-free — but not old 401(k)s or IRAs, and not funds you’ve rolled to an IRA.
- Total and permanent disability, and certain unreimbursed medical expenses.
- Substantially equal periodic payments (a 72(t) schedule) taken over your life expectancy.
- Other narrower exceptions exist (e.g. a qualified birth or adoption, certain emergencies, an IRS levy). Rules and limits change — confirm your situation with a tax professional.
Tick the exception box above to see your result with the penalty removed. Before cashing out, it’s worth comparing a 401(k) loan or leaving the money invested — an early withdrawal is usually the most expensive option on the table.