401(k) Early Withdrawal Calculator

401(k) early payout cost with penalty, tax, withholding, and exceptions.

Finance and MoneyUpdated 2026-10-122 min read
401(k) Early Withdrawal Calculator
Federal cost
...
Penalty...
Cash split...

What it does

Cashing a 401(k) early stacks two federal costs: ordinary income tax plus a 10% penalty on the taxable slice before 59.5. A $10,000 withdrawal at 22% costs $3,200 with $2,000 withheld at payout.

The tool above takes amount with age, rate, and exception. It returns total federal cost with penalty and the cash now versus balance due split.

The default 45-year-old with no exception pays $3,200 total: $8,000 now, $1,200 due. At 60 the same withdrawal costs $2,200 with no penalty.

Rules follow IRS distribution guides with Topics 558 and 5329 tables behind them. All three pin the 10%, 20%, and 59.5 figures used here.

How to use

  1. Enter the distribution amount.
  2. Enter your age.
  3. Enter the marginal tax rate.
  4. Pick an exception if any.
  5. Read total federal cost first.
  6. Read cash now and balance due.

Formula

Tax = amount x rate. Penalty = 10% x taxable unless 59.5+ or exception. Net now = amount - 20%.
amount
Gross distribution, pre-tax assumed.
rate
Federal marginal percent.
exempt
59.5+ or listed exception.
20%
Mandatory payout withholding.

Penalty runs on the taxable slice only; after-tax basis and completed rollovers sit outside. SEPP changes trigger recapture and SIMPLE first-two-year money runs 25%. State taxes add on top of federal here.

Worked example

Example: $10,000 at age 45

Defaults: $10,000 at 45, 22% bracket, no exception.

  1. Distribution: $10,000 pre-tax at age 45.
  2. Income tax: 10,000 x 22% = $2,200.
  3. Penalty: 10,000 x 10% = $1,000, no exception.
  4. Federal cost: 2,200 + 1,000 = $3,200.
  5. Withholding: 10,000 x 20% = $2,000.
  6. Cash now: 10,000 - 2,000 = $8,000.
  7. Balance due: 3,200 - 2,000 = $1,200.
  8. Tool shows $3,200.00, $1,000.00 penalty, $8,000.00 now, $1,200.00 due.

Reference table

Early withdrawal rules
RuleFigureNote
Penalty rate10%Of taxable part
Penalty age59.5Before this
Separation age55Qualified plans
Withholding20%Paid to you
Rollover window60 daysAdd funds to complete

Limits

  • Federal only; states add more.
  • Pre-tax assumed; Roth orders differ.
  • SIMPLE early years run 25%.
  • Advice needs a tax pro.

Common mistakes

  • Forgetting the 20% withholding gap.
  • Assuming exceptions are automatic.
  • Rolling hardship money over.
  • Breaking SEPP schedules.
  • Missing the 60-day window.

Try it yourself

Quick checks. Answers sit tucked under each question.

$10,000 at 60, 22%?

Tax $2,200, penalty $0: $2,200 total, $8,000 now, $200 due.

$10,000 at 57, separated at 55?

Separation at 55+ exempts: penalty $0.00.

Full $10,000 direct rollover?

Direct rollover: taxable $0, penalty $0, withholding $0.

Questions

What does an early withdrawal cost?

10% of the taxable part before 59.5 plus ordinary income tax. Roth basis and rollovers escape both.

What is withheld at payout?

20% of taxable eligible rollovers paid to you. Direct rollovers withhold $0; add funds within 60 days to complete.

Which exceptions skip the penalty?

Separation at 55+, disability, SEPP series, death, QDRO, levy, and medical over 7.5% of AGI.

How does the medical exception work?

Only the amount over 7.5% of AGI escapes on that ground. The rest still penalizes.

What about designated Roth money?

Yes: 5-year plus 59.5, disability, or death makes earnings tax free. Early nonqualified earnings penalize pro rata.

Do all payouts roll over?

No. Hardship, loans-as-distributions, and RMDs each carry their own rollover limits.

Sources

How this page was checked. The formula above was matched against the cited sources, and the worked example was run through the tool on this page before publishing. If you spot an error, contact us so we can fix it and note the correction.