401(k) Withdrawal Calculator

Begin by entering the total Withdrawal Amount you plan to take from your 401(k). Next, input your Current Age; this is the most important factor in determining if the 10% early withdrawal penalty applies. Then, enter your total 401(k) Balance to see how the withdrawal affects your remaining savings.

In the Tax Information section, select your Filing Status (Single or Married Filing Jointly) and enter your Other Annual Income — this is your W-2, pension, Social Security, or other income for the year. The calculator uses this to place your 401(k) withdrawal in the correct tax bracket. Then select your State of Residence from the dropdown to automatically apply your state's income tax rate.

If you are under age 59½, you will see a Penalty Exception selector. Choose the applicable exception (Rule of 55, SEPP, disability, or public safety employee) to see how it removes the 10% penalty from your results.

For a more detailed calculation, open the advanced settings. You can specify your Roth 401(k) Balance, Roth Contributions (Cost Basis), and Roth Account Age. The calculator applies the Roth 5-year rule: if you are at least 59½ and your Roth account is at least 5 years old, the entire Roth portion is tax-free. Otherwise, contributions come out tax-free but earnings are taxable.

Withdrawal Amount

This is the gross amount you plan to withdraw from your 401(k) before any taxes or penalties are taken out. This is the starting point for all calculations.

Current Age

Your age determines whether the IRS 10% early withdrawal penalty applies. If you are under age 59½, this penalty is generally assessed on the taxable portion of your withdrawal, in addition to regular income taxes. There are some exceptions, detailed below.

401(k) Balance

Your total current 401(k) account balance (traditional + Roth). The calculator uses this to show you the remaining balance after your withdrawal and to determine the pro-rata split between traditional and Roth portions.

Filing Status

Your federal tax filing status determines which set of tax bracket thresholds applies. Single filers have lower bracket thresholds than Married Filing Jointly filers, meaning the same income is taxed at higher rates for single filers.

Other Annual Income

Your income for the year excluding this 401(k) withdrawal — W-2 wages, pension income, Social Security benefits, rental income, etc. This is critical because your 401(k) withdrawal stacks on top of this income, so the calculator can determine which bracket the withdrawal falls into. For example, $50,000 in other income plus a $50,000 withdrawal is taxed differently than a $50,000 withdrawal with no other income.

State of Residence

Your state determines the state income tax rate applied to the taxable portion of your withdrawal. States like Florida, Texas, Nevada, and Washington have no income tax (0%), while states like California (9.3%) and Oregon (9.9%) have high rates. The rate is applied automatically when you select your state. Find out which states are best for taxes in our guide to the best states to retire for taxes.

Penalty Exception

Available when you are under age 59½. The IRS allows several exceptions to the 10% early withdrawal penalty:

• Rule of 55: If you left your employer in or after the year you turned 55, you can take penalty-free withdrawals from that employer's 401(k). SECURE 2.0 expanded this to age 50 for qualified public safety employees.
• SEPP (72(t)): Substantially equal periodic payments over your life expectancy. Once started, you must continue for 5 years or until age 59½, whichever is later.
• Disability: Total and permanent disability as defined by the IRS (IRC §72(m)(7)).
• Public Safety Employee (Age 50+): Qualified public safety employees who separated from service after reaching age 50.

Roth 401(k) Balance (Advanced)

The total Roth portion of your 401(k) balance, including both contributions and earnings. This is used to determine the pro-rata Roth withdrawal amount.

Roth Contributions / Cost Basis (Advanced)

Your total Roth 401(k) contributions only — not including earnings. This matters for the 5-year rule: if your Roth distribution is not qualified, contributions come out tax-free but earnings are taxable.

Roth Account Age (Advanced)

The number of years since your first Roth 401(k) contribution. Combined with your age, this determines whether the distribution is "qualified" (age 59½ + 5-year rule = entirely tax-free) or not.

This calculator uses 2026 federal tax brackets (per IRS Rev. Proc. 2025-36, including One Big Beautiful Bill amendments) to compute the marginal tax on your withdrawal. The methodology accounts for bracket stacking, the Roth 5-year rule, penalty exceptions, and mandatory withholding.

Step 1: Determine Taxable Amount

The calculator splits your withdrawal pro-rata between traditional and Roth portions based on your account balances. For the Roth portion, it applies the 5-year rule:

• Qualified Roth distribution (age ≥ 59½ AND Roth account ≥ 5 years): Entire Roth withdrawal is tax-free.
• Non-qualified: Contributions come out first, tax-free. Remaining earnings are taxable and penalty-eligible.

The taxable amount is the traditional withdrawal plus any taxable Roth earnings.

Step 2: Calculate Federal Tax Using Brackets

Instead of applying a flat rate, the calculator computes the marginal tax on just the withdrawal:

1. Calculate federal tax on your other income alone.
2. Calculate federal tax on your other income plus the taxable withdrawal.
3. The difference is the federal tax attributable to the withdrawal.

This correctly handles bracket stacking — a $50,000 withdrawal on top of $85,000 other income will span the 22% and 24% brackets for a single filer, not just one flat rate.

Step 3: Apply State Tax

The state income tax rate for your selected state is applied as a flat rate to the taxable amount (most states use a single flat rate for retirement income).

Step 4: Determine Penalty

If you are under 59½ and no penalty exception applies, a 10% penalty is assessed on the taxable amount. If a penalty exception is selected, the penalty is $0.

Step 5: Calculate 20% Mandatory Withholding

Your plan administrator is required to withhold 20% of the taxable amount for federal taxes before sending you the distribution. This withholding is an advance payment — your actual tax may be more or less. The calculator shows both the withholding amount and the estimated balance due (or refund) at filing.

Roth Pro-Rata Split

roth_withdrawal = withdrawal_amount × (roth_balance / total_balance)
traditional_withdrawal = withdrawal_amount - roth_withdrawal

If qualified (age ≥ 59.5 AND roth_account_age ≥ 5):
  roth_tax_free = roth_withdrawal
  roth_earnings = 0

If not qualified:
  contrib_ratio = roth_contributions / roth_balance
  roth_tax_free = roth_withdrawal × contrib_ratio
  roth_earnings = roth_withdrawal - roth_tax_free

taxable_amount = traditional_withdrawal + roth_earnings

Federal Tax (Bracket-Based)

fed_tax_without = calculateFederalTax(other_income, filing_status, age)
fed_tax_with = calculateFederalTax(other_income + taxable_amount, filing_status, age)
federal_tax = fed_tax_with - fed_tax_without

The calculateFederalTax function applies the 2026 standard deduction ($16,100 single / $32,200 MFJ, plus $2,050/$1,650 additional deduction for age 65+) and then applies progressive bracket rates.

State Tax, Penalty & Net

state_tax = taxable_amount × (state_rate / 100)
early_penalty = (age < 59.5 AND no exception) ? taxable_amount × 0.10 : 0
total_deductions = federal_tax + state_tax + early_penalty
net_received = withdrawal_amount - total_deductions

20% Withholding

mandatory_withholding = taxable_amount × 0.20
tax_due_at_filing = federal_tax - mandatory_withholding
(positive = owe more, negative = refund)

Effective Tax Rate

effective_tax_rate = (total_deductions / withdrawal_amount) × 100

Unlike long-term capital gains from a brokerage account, money taken from a traditional 401(k) is taxed as ordinary income. This means it is added to your other income for the year (like your salary) and taxed at your marginal tax rate. The key insight this calculator provides is the bracket-stacking effect: your withdrawal doesn't exist in isolation — it sits on top of all your other income.

For example, a single filer with $85,000 in other income (after standard deduction, taxable income of ~$68,900) is already in the 22% bracket. A $50,000 401(k) withdrawal pushes their taxable income to ~$118,900, crossing into the 24% bracket. The effective federal rate on that withdrawal is higher than 22% because part of it is taxed at 24%.

This treatment can have a significant impact. A large withdrawal can push you into a higher bracket, causing you to pay a higher rate on that money than you anticipated. It is essential to plan withdrawals carefully, potentially spreading them across multiple tax years. For a complete overview, see our guide on how 401(k) withdrawals are taxed in retirement.

Roth 401(k) — The 5-Year Rule

Withdrawals from a Roth 401(k) are different. Contributions were made with after-tax dollars, so they are always tax-free. However, earnings are only tax-free for qualified distributions — you must be at least 59½ AND your Roth account must be at least 5 years old. If either condition is not met, earnings are taxable as ordinary income and may be subject to the 10% early withdrawal penalty.

The 5-year clock starts on January 1 of the year you made your first Roth 401(k) contribution. If you roll over a Roth 401(k) to a Roth IRA, the IRA's 5-year clock applies instead.

The IRS imposes a 10% additional tax on early distributions from most retirement plans, including 401(k)s, to discourage tapping retirement savings before retirement. This penalty applies if you take a withdrawal before reaching age 59½.

This 10% penalty is in addition to regular income tax. For someone in the 22% federal bracket with a 5% state tax, an early withdrawal could result in a total effective rate of 37% (22% + 5% + 10%) or more.

Penalty Exceptions Modeled in This Calculator

• Rule of 55: If you leave your job in or after the year you turn 55, you can take penalty-free withdrawals from that employer's 401(k). This applies only to the plan of the employer you separated from. SECURE 2.0 expanded this to age 50 for qualified public safety employees.
• SEPP / 72(t): A series of substantially equal periodic payments calculated over your life expectancy. Once started, payments must continue for at least 5 years or until age 59½ (whichever is later). Breaking the schedule retroactively applies the 10% penalty to all prior distributions.
• Disability: Total and permanent disability as defined in IRC §72(m)(7).
• Public Safety Employee (Age 50+): Qualified public safety employees who separated from service after age 50.

Additional Exceptions (Not Modeled)

• Distributions to your beneficiary after death
• Unreimbursed medical expenses exceeding 7.5% of AGI
• IRS levy on the plan
• Qualified domestic relations order (QDRO)
• Qualified birth or adoption distributions (up to $5,000)
• Federally declared disaster distributions (SECURE 2.0)
• Terminal illness distributions (SECURE 2.0)

Before taking an early withdrawal, always check if you qualify for an exception. The 401(k) early withdrawal penalty calculator can help you model the cost if you do not.

When you take a distribution from your 401(k), your plan administrator is required by law to withhold 20% of the taxable amount for federal income taxes. This is not an optional withholding election — it is mandatory for eligible rollover distributions paid directly to you.

Key points about the 20% withholding:

• The withholding is an advance payment, not the final tax. Your actual tax liability may be higher or lower.
• If your marginal bracket is above 20% (22%, 24%, etc.), you will owe additional tax when you file.
• If your effective rate on the withdrawal is below 20%, you will receive a refund.
• State taxes and the 10% early penalty are separate — the 20% withholding covers only federal income tax.
• You can avoid the 20% withholding by doing a direct rollover to another retirement account instead of taking a cash distribution.

This calculator shows both the withholding amount and the estimated balance due (or refund) so you can plan accordingly.

• Net Received: The actual cash available to you after all taxes and penalties. This is the amount you can spend.
• Federal Tax: The estimated federal income tax on the withdrawal, calculated using 2026 brackets based on your filing status and other income. The "bracket" shown is your top marginal rate.
• State Tax: Your state income tax on the taxable withdrawal, based on your selected state's rate.
• Early Penalty: The 10% penalty if under 59½ and no exception applies. Shows "exempted" when a penalty exception is active.
• Effective Tax Rate: The total percentage of your gross withdrawal lost to all taxes and penalties combined.
• 20% Withholding Card: Shows how much your plan will withhold upfront and whether you'll owe more or get a refund at filing time.
• Withdrawal Breakdown (Donut Chart): A visual showing where each dollar goes: to you, federal tax, state tax, or penalty.
• Comparison Table: Shows how the net amount, taxes, effective rate, and marginal bracket change at different withdrawal amounts. Larger withdrawals push into higher brackets — this table makes the non-linear tax impact visible.

If the taxes and penalties on your planned withdrawal are higher than you'd like, consider these strategies to keep more of your money:

• Wait Until Age 59½: Eliminates the 10% early withdrawal penalty instantly.
• Use the Rule of 55: If you're between 55 and 59½ and have separated from your employer, you can avoid the penalty entirely.
• Take a 401(k) Loan Instead: If your plan allows, a 401(k) loan lets you borrow without triggering taxes or penalties.
• Withdraw Only What You Need: A smaller withdrawal stays in lower brackets. Use the comparison table to see the bracket effect.
• Time Withdrawals for a Low-Income Year: Lower other income means your withdrawal starts in a lower bracket, reducing the overall tax.
• Use Roth 401(k) Funds: Qualified Roth distributions are entirely tax-free. If your Roth account meets the 5-year rule, prioritize it.
• Consider a Roth Conversion Ladder: For early retirees, a Roth conversion ladder accesses retirement funds penalty-free before age 59½.
• Move to a No-Tax State: States like Florida, Texas, Nevada, and Washington have no income tax, eliminating the state tax line entirely.

1. Assuming a Flat Tax Rate. Many people apply their marginal rate to the entire withdrawal, but the actual tax depends on bracket stacking with your other income. This calculator handles that correctly.
2. Confusing Withholding with Final Tax. The 20% your plan withholds is an advance payment. Your actual tax may be higher, leaving you with an unexpected bill at filing time.
3. Forgetting State Taxes. Federal taxes are only part of the story. A 9.3% California rate on a $50,000 withdrawal adds $4,650.
4. Thinking the 10% Penalty Replaces Income Tax. The penalty is additional — on top of federal and state income tax.
5. Not Checking for Penalty Exceptions. The Rule of 55, SEPP, and disability exceptions can save thousands. Always check before paying the 10% penalty.
6. Ignoring the Roth 5-Year Rule. Roth contributions are always tax-free, but earnings are only tax-free for qualified distributions. Taking a non-qualified Roth distribution means earnings are taxed and penalized.
7. Overlooking the Opportunity Cost. Withdrawing doesn't just cost taxes — it costs future tax-deferred growth. Use the 401(k) calculator to see the long-term impact.

Taking money from your 401(k) is a major financial decision. Use the calculator above to understand the true cost of a withdrawal before you act. Model different scenarios to see how changing the amount, timing, or penalty exceptions can impact your net proceeds and your long-term retirement security.

For more tools to help you plan, explore our full suite of retirement calculators. You can project your savings with the 401(k) growth calculator, compare loan options with the 401(k) loan calculator, or dive into our retirement planning for beginners guide.