Tax on a $500,000 401(k) withdrawal by other income
The 401(k) withdrawal stacks on top of whatever else you earn that year, so the same $500,000 costs more when other income has already used the low brackets. Other income here is pension or wage-like ordinary income; age 60, no state tax.
| Other income | Single | Married filing jointly |
|---|---|---|
| $0 | $138,134 (27.6%) | $102,608 (20.5%) |
| $25,000 | $145,994 (29.2%) | $110,608 (22.1%) |
| $50,000 | $151,814 (30.4%) | $116,989 (23.4%) |
| $100,000 | $159,964 (32.0%) | $128,629 (25.7%) |
| $150,000 | $165,900 (33.2%) | $138,429 (27.7%) |
By age
Before 59½ a 401(k) or IRA withdrawal also owes the 10% additional tax unless an exception applies. From 65 the standard deduction is larger and the senior deduction (2025 to 2028) lowers the tax.
| Age | Federal income tax | 10% additional tax | Total |
|---|---|---|---|
| 50 | $138,134 | $50,000 | $188,134 |
| 60 | $138,134 | $0 | $138,134 |
| 66 | $137,417 | $0 | $137,417 |
| 73 | $137,417 | $0 | $137,417 |
By state
State tax on the same 401(k) withdrawal, single, 60, no other income. The nine states with no income tax take nothing.
| State | State tax | Share of the 401(k) withdrawal |
|---|---|---|
| Arizona | $12,098 | 2.4% |
| California | $43,542 | 8.7% |
| Colorado | $20,412 | 4.1% |
| Maryland | $26,758 | 5.4% |
| Massachusetts | $24,780 | 5.0% |
| Michigan | $18,126 | 3.6% |
| North Carolina | $19,441 | 3.9% |
| Ohio | $13,313 | 2.7% |
| Pennsylvania | $0 | 0.0% |
| Virginia | $27,936 | 5.6% |
Spread over several years
Taking the same $500,000 in equal parts over more years keeps more of it in lower brackets. Total federal tax, single, 60:
| Taken over | No other income | $50,000 of other income a year |
|---|---|---|
| One year | $138,134 | $151,814 |
| 2 years ($250,000 a year) | $102,608 | $128,628 |
| 4 years ($125,000 a year) | $74,936 | $107,656 |
Withholding, penalties and RMDs
A 401(k) plan must withhold 20% of a withdrawal paid to you, $100,000 here; an IRA withholds 10% unless you choose otherwise. Withholding is a prepayment and is settled on your return. Leaving your employer in or after the year you turn 55 lets that plan pay out without the 10% penalty (the Rule of 55); before then, 72(t) payments are the other way in.
From 73 or 75, required minimum distributions force withdrawals each year whether you need them or not; the RMD tables by age and balance show how large they get.
Other amounts
| Amount | 401(k) withdrawal | Roth conversion |
|---|---|---|
| $20,000 | $390 on $20,000 | $390 on $20,000 |
| $25,000 | $890 on $25,000 | $890 on $25,000 |
| $30,000 | $1,420 on $30,000 | $1,420 on $30,000 |
| $40,000 | $2,620 on $40,000 | $2,620 on $40,000 |
| $50,000 | $3,820 on $50,000 | $3,820 on $50,000 |
| $60,000 | $5,020 on $60,000 | $5,020 on $60,000 |
| $70,000 | $6,570 on $70,000 | $6,570 on $70,000 |
| $75,000 | $7,670 on $75,000 | $7,670 on $75,000 |
| $80,000 | $8,770 on $80,000 | $8,770 on $80,000 |
| $90,000 | $10,970 on $90,000 | $10,970 on $90,000 |
| $100,000 | $13,170 on $100,000 | $13,170 on $100,000 |
| $125,000 | $18,734 on $125,000 | $18,734 on $125,000 |
| $150,000 | $24,734 on $150,000 | $24,734 on $150,000 |
| $200,000 | $36,734 on $200,000 | $36,734 on $200,000 |
| $250,000 | $51,304 on $250,000 | $51,304 on $250,000 |
| $300,000 | $68,134 on $300,000 | $68,134 on $300,000 |
| $400,000 | $103,134 on $400,000 | $103,134 on $400,000 |
| $500,000 | $138,134 | $138,134 on $500,000 |
The calculator, set to this 401(k) withdrawal
Set to a single filer aged 60 with $500,000 of IRA or 401(k) withdrawals and nothing else. Add Social Security, a pension, your state or a spouse.
On $500,000 of income, the 2026 tax is about $138,134: $138,134 federal. $0 of your Social Security is taxable. The next $1,000 you withdraw from an IRA would cost $350 in tax.
This year’s income sets your Medicare premiums for 2028. See your IRMAA tier.
Figures checked on against IRS Rev. Proc. 2025-32, 2026 inflation adjustments (PDF), IRS, enhanced deduction for seniors (26 U.S.C. 151(d)(5)(C)) and IRS Publication 575, Pension and Annuity Income.