Finance calculators

401k Withdrawal Tax Calculator

Updated Aug 22, 2026 By Jehan Wadia
Rate Formulas
Withdrawal Information
Distributions before age 59½ may trigger a 10% additional tax.
Account Type
Tax Filing Information
Wages, self-employment income, taxable Social Security, and other taxable income.
Type a letter to jump to a state. No-income-tax states are marked.
Withholding & Adjustments
The IRS requires at least 20% withholding on eligible rollover distributions.
Traditional IRA contributions, student loan interest, HSA contributions, etc.
Standard deduction applied: $16,100
Purchasing Power (optional)
Set to 0 if you plan to spend the money now.
Compare Scenarios
Scenario A uses all the inputs above.
Withdrawal Tax Summary (2026)
Gross Withdrawal Amount$0.00
Taxable Portion of Withdrawal$0.00
Federal Income Tax$0.00
State Income Tax $0.00
Early Withdrawal Penalty (10%)$0.00
Total Tax + Penalty$0.00
Net Amount Received$0.00
Effective Tax Rate on Withdrawal0.00%
Marginal Federal Tax Bracket0%
Inflation-Adjusted Value (Today's Dollars)$0.00
Where Your Withdrawal Goes
Text equivalent of the withdrawal breakdown chart
ComponentAmountShare
Federal Tax Bracket Breakdown
Bracket filled by your other income ▤ Bracket touched by the withdrawal
Federal Tax Bracket Breakdown (2026)
Bracket Rate Taxable Income Range Other Income in Bracket Withdrawal in Bracket Tax in Bracket Tax from Withdrawal
Federal Bracket Meter — Where the Withdrawal Lands
State Tax Summary
Withholding vs. Tax Actually Owed
Traditional vs. Roth on This Withdrawal
Same Withdrawal in the Lowest-Tax States
Illustrative comparison of state tax on the same withdrawal
StateState TaxNet Amount Received
Scenario Comparison
Side-by-side scenario results
MetricScenario AScenario BDifference (B − A)
Step-by-Step Solution

Introduction

When you take money out of your 401(k), you don't keep all of it. The IRS taxes it as income. Your state may tax it too. And if you are under age 59½, you may owe an extra 10% penalty. This 401(k) withdrawal tax calculator shows you what is left after all of that.

Just enter your withdrawal amount, your age, your other income, your filing status, and your state. The calculator uses the 2026 federal tax brackets and your state's tax rules to work out your federal tax, state tax, penalty, and net cash in hand. It also shows your effective tax rate and which tax bracket the money lands in. If you want to check the bracket math on its own, the Tax Bracket Calculator and Effective Tax Rate Calculator break it down further.

You can compare two plans side by side, such as taking money now versus waiting until 59½. You can check a Traditional 401(k) against a Roth 401(k). You can see how much a move to a low-tax state would save. Every result comes with a step-by-step math breakdown, so you can see exactly how each number was found before you make your choice.

How to use our 401k Withdrawal Tax Calculator

Enter how much you plan to take out of your 401(k), your age, your income, and where you live. The calculator shows your federal tax, state tax, any 10% early withdrawal penalty, your total tax bill, and the net cash you keep.

401(k) Withdrawal Amount: Type the total dollar amount you want to pull out of your account this year. If you are still deciding how much you can safely take, try the Retirement Withdrawal Calculator or the 4% Rule Calculator first.

Account Holder Age: Enter your age. Taking money out before age 59½ can add a 10% penalty. See the 401k Early Withdrawal Calculator for a closer look at pre-59½ distributions.

Account Type: Pick Traditional 401(k) or Roth 401(k). Traditional money is taxed when you withdraw it. Roth money may come out tax-free. Compare long-run growth with the Roth 401k Calculator.

Qualified Distribution (Roth only): Check this box if you are 59½ or older and have had the Roth account for at least 5 years. If so, the whole withdrawal is tax-free.

Earnings Portion of Withdrawal (Roth only): Enter the percent of the withdrawal that is growth, not your own contributions. Only that part is taxed on a non-qualified Roth withdrawal.

Withdrawal Reason / Type: Choose why you are taking the money out. Some reasons, like disability, death, RMDs, or SEPP payments, skip the 10% penalty. The 401k RMD Calculator and the 72t Calculator handle those two cases in detail.

Federal Filing Status: Pick how you file your taxes, such as Single or Married Filing Jointly. This sets your tax brackets and standard deduction.

Other Annual Income: Enter all your other taxable income for the year, like wages. Your withdrawal stacks on top of this, so it matters a lot. Use the Taxable Income Calculator if you are not sure of your figure.

State of Residence: Choose your state. States with no income tax are marked, and some states give retirement income breaks. The State Tax Calculator covers state rules on their own.

Custom State Tax Rate: Optional. Enter your own state rate as a percent if you want to override the built-in state rules.

Federal Withholding Percentage: Enter the percent your plan holds back for federal tax. Most plans withhold 20%. The tool shows if that covers what you owe. For paycheck withholding, see the Tax Withholding Calculator.

Additional Tax Deductions or Adjustments: Optional. Add other write-offs, like HSA or student loan interest, to lower your taxable income. The AGI Calculator helps you total these up.

Apply the 2026 Federal Standard Deduction: Keep this checked to use the standard deduction for your filing status. Uncheck it if you itemize.

Expected Annual Inflation Rate: Enter the yearly inflation rate you expect. This shows what your money will really be worth later. The Inflation Calculator goes deeper on purchasing power.

Years Until You'll Spend This Money: Enter how many years the cash will sit before you use it. Put 0 if you will spend it now.

Compare Two Scenarios: Turn this on to test a second plan, like waiting until age 59½, next to your first one.

Scenario A Name: Name your main plan so it is easy to read in the comparison table and chart.

Scenario B Name and Inputs: Name your second plan, then set its own withdrawal amount, age, reason, account type, other income, state, and filing status.

Click Calculate to see your results, bracket breakdown, and step-by-step math. Click Reset to start over.

401(k) Withdrawal Tax: What You Need to Know

A 401(k) is a retirement account you get through work. Money you put in a traditional 401(k) is not taxed right away. It is taxed later, when you take it out. So when you make a withdrawal, the IRS treats that money like a paycheck. It gets added to the rest of your income for the year and is taxed at your regular income tax rate. You can see how that stacks against your salary with the Income Tax Calculator.

The 10% Early Withdrawal Penalty

If you take money out before age 59½, you usually owe an extra 10% penalty on top of the income tax. This rule comes from Section 72(t) of the tax code. The penalty is why early withdrawals cost so much. A $50,000 withdrawal can lose a big chunk to federal tax, state tax, and the penalty combined.

Some reasons let you skip the 10% penalty, such as:

  • Total and permanent disability
  • Death (money paid to a beneficiary) — see the Inherited IRA RMD Calculator
  • Required minimum distributions (RMDs), which start at age 73 — use the RMD Calculator
  • Substantially equal periodic payments (SEPP, also called Rule 72(t))

Hardship withdrawals are a common surprise. They let you get your money early, but you still owe the 10% penalty unless another exception also fits. If you only need cash for a short time, a 401k Loan Calculator run may show a cheaper path.

Roth 401(k) Withdrawals

A Roth 401(k) works the other way around. You already paid tax on the money you put in. If your withdrawal is qualified — you are at least 59½ and the account has been open five years or more — you owe no federal tax at all. If it is not qualified, only the earnings part is taxed, and that part may also face the 10% penalty. Moving traditional dollars into Roth dollars ahead of time is its own decision; the Roth Conversion Calculator and Roth IRA Calculator cover that ground.

Federal Tax Brackets and Bracket Creep

Federal income tax is a stair-step system. Your first dollars are taxed at 10%, the next ones at 12%, and so on up to 37%. A large withdrawal stacks on top of your other income, so part of it can get pushed into a higher bracket. That is why your marginal rate (the rate on your last dollar) is often higher than your effective rate (the average rate on the whole withdrawal). The Marginal Tax Rate Calculator and the 2026 Tax Calculator show the same effect across your full return.

State Taxes Matter Too

Most states tax 401(k) withdrawals as well. Nine states — Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming — have no personal income tax on this money. Others, like Illinois, Iowa, Pennsylvania, and Mississippi, fully or mostly exempt retirement income. Many states also give partial breaks based on your age. Where you live can change your net amount by thousands of dollars, and the Cost of Living Calculator can help you weigh a move.

Withholding Is Not the Same as Your Tax Bill

Plans usually hold back 20% for federal tax on eligible rollover distributions. That is just a down payment, not your final bill. If your real tax and penalty add up to more than 20%, you owe the rest at tax time. If they add up to less, you get money back as a refund — estimate it with the Tax Refund Calculator.

Ways to Lower the Cost

  • Roll it over. Moving money straight to an IRA or a new 401(k) avoids tax and the penalty. See the Traditional IRA Calculator.
  • Split the withdrawal. Taking money over two years can keep you in a lower bracket.
  • Wait if you can. Reaching 59½ drops the 10% penalty entirely.
  • Take it in a low-income year. Less other income means a smaller tax bite.

Also remember that money pulled out early stops growing. A withdrawal today costs you the tax, the penalty, and all the future growth that money would have earned — the 401k Calculator and Compound Interest Calculator show the size of that trade-off. Inflation shrinks the value of cash you hold, too, so a dollar you keep for later buys less than a dollar today. If you are mapping out a longer plan, the Retirement Calculator and How Long Will My Money Last Calculator are good next stops.


Formulas used

Taxable portion of the withdrawal
W_{\text{taxable}} = \begin{cases} W & \text{Traditional 401(k)} \\ 0 & \text{qualified Roth} \\ W \times \dfrac{e}{100} & \text{non-qualified Roth (earnings share } e\%) \end{cases}
Federal taxable income with and without the withdrawal
TI_{\text{without}} = \max(0,\; I_{\text{other}} - D_{\text{std}} - D_{\text{adj}}), \qquad TI_{\text{with}} = \max(0,\; I_{\text{other}} + W_{\text{taxable}} - D_{\text{std}} - D_{\text{adj}})
Progressive bracket tax on taxable income
T(TI) = \sum_{i} \left[ \max\!\left(0,\; \min(TI,\, u_i) - u_{i-1}\right) \times r_i \right]
Federal income tax attributable to the withdrawal
Tax_{\text{fed}} = \max\!\left(0,\; T(TI_{\text{with}}) - T(TI_{\text{without}})\right)
Early withdrawal penalty (10% additional tax)
P = \begin{cases} B \times 0.10 & \text{age} < 59.5 \text{ and no exception} \\ 0 & \text{otherwise} \end{cases}, \quad B = \begin{cases} W & \text{Traditional} \\ W_{\text{taxable}} & \text{Roth} \end{cases}
State income tax on the withdrawal
Tax_{\text{state}} = \begin{cases} W_{\text{taxable}} \times \dfrac{r_{\text{custom}}}{100} & \text{override} \\ S \times \dfrac{r_{\text{flat}}}{100} & \text{flat state} \\ T_{s}(I_{\text{other}} + S) - T_{s}(I_{\text{other}}) & \text{graduated state} \end{cases}, \quad S = \max(0,\; W_{\text{taxable}} - E)
Total tax, net amount received, and effective rate
Tax_{\text{total}} = Tax_{\text{fed}} + Tax_{\text{state}} + P, \qquad N = W - Tax_{\text{total}}, \qquad \text{Effective rate} = \frac{Tax_{\text{total}}}{W} \times 100\%
Withholding shortfall and inflation-adjusted net value
\Delta_{wh} = W \times \frac{w}{100} - (Tax_{\text{fed}} + P), \qquad N_{\text{real}} = \frac{N}{\left(1 + \frac{g}{100}\right)^{n}}