Quick Answer

Withdrawing $20,000 from a 401(k) before age 59½: you pay a 10% penalty ($2,000) + federal income tax (~$2,200 at 22% marginal) + state tax. Net received: approximately $14,000–$16,000 depending on state. After 59½ there is no penalty — only income taxes apply.

401(k) Withdrawal Calculator 2026

Calculate how much you actually receive from a 401(k) withdrawal after the 10% early penalty and income taxes.
2026 IRS rates. Age-based exemptions. All 50 states.

Last updated: September 2026 — rates sourced from IRS Publication 15, SSA & state revenue departments
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401(k) withdrawal rules and taxes in 2026

A 401(k) withdrawal triggers two separate costs: income tax (because contributions were pre-tax) and — for those under 59½ — a 10% early withdrawal penalty. Together these can consume 30–45% of the amount withdrawn depending on your tax bracket and state.

Federal income tax on the withdrawal is calculated by adding the distribution to all other income. If you earn $50,000 in wages and withdraw $20,000, your total taxable income is $70,000 — the withdrawal is taxed at whatever marginal rate applies to the $50,001–$70,000 slice.

The 10% penalty applies to the gross withdrawal amount. It is separate from income tax and cannot be reduced by deductions. It is reported on Form 5329 and added directly to taxes owed.

Consider alternatives before withdrawing: A 401(k) loan lets you borrow up to 50% of your vested balance (max $50,000) without taxes or penalties, repaid through payroll deductions. A hardship withdrawal avoids the 10% penalty if you qualify under plan-specific hardship definitions. To optimize contributions going forward, use the Take-Home Pay Calculator to model the impact of increasing your 401(k) contribution.

Net WithdrawalEarly

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Disclaimer: Results are estimates based on 2026 IRS and published government rates. Not a substitute for licensed payroll software or professional tax or financial advice.

FAQ

401(k) Withdrawal Calculator questions answered

For early withdrawals (before age 59½): you pay (1) a 10% IRS penalty on the entire amount, (2) federal income tax at your marginal bracket (the withdrawal is added to all other income), and (3) state income tax where applicable. Combined, early withdrawals often cost 30–40% in taxes and penalties. After age 59½: no penalty, only federal and state income taxes apply.
IRS exceptions include: disability (total and permanent), substantially equal periodic payments (SEPP/Rule 72t), death (inherited 401k), medical expenses exceeding 7.5% of AGI, health insurance premiums while unemployed, qualified domestic relations order (QDRO), military reservist called to active duty, and first-time homebuyer (IRA only, not 401k). The SECURE 2.0 Act (2023) added emergency distributions up to $1,000/year penalty-free and domestic abuse victim distributions.
For eligible rollover distributions paid directly to you (not rolled over), your plan must withhold 20% for federal income tax. This is mandatory — you cannot opt out. The 20% is applied to the gross distribution, so if you take $50,000, you receive $40,000 and $10,000 is sent to the IRS. You still owe any additional taxes at filing, plus the 10% penalty if under 59½. Non-periodic distributions use a 10% default withholding.
Required Minimum Distributions (RMDs) must begin at age 73 under SECURE 2.0 (for those born 1951 or later). The RMD is calculated by dividing your December 31 account balance by an IRS life expectancy factor from Publication 590-B. Failing to take an RMD triggers a 25% excise tax on the amount not withdrawn (reduced from 50% by SECURE 2.0). RMDs from a Roth 401k were eliminated starting 2024.

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