Most pension withdrawals are taxed as ordinary income

When you withdraw money from a traditional pension or 401(k), the IRS treats it as ordinary income — the same tax bracket as wages from your job. If you contributed pre-tax dollars to the plan (which is standard), you pay income tax on the full amount you withdraw, at whatever your tax rate is that year.

The tax is not automatic. Your pension provider will withhold a percentage — usually 10 to 20 percent — and send it to the IRS on your behalf. But that withholding is often not enough to cover what you actually owe, especially if you have other income that year. You may owe more at tax time, or you may get a refund.

Roth pensions and Roth 401(k)s work differently: you contributed after-tax dollars, so your withdrawals are tax-free as long as the account has been open for at least five years and you are 59½ or older. If you withdraw early or before the five-year window closes, the earnings portion is taxed and may face a 10 percent penalty.

Key Takeaways

  • Traditional pension and 401(k) withdrawals are taxed as ordinary income at your current tax rate, not at a special rate.
  • Your pension provider withholds a percentage of each payment, but this is often less than what you will owe in taxes.
  • Roth pensions and Roth 401(k)s are tax-free in retirement if you meet the five-year rule and are at least 59½.
  • Withdrawals before age 59½ usually trigger a 10 percent early-withdrawal penalty on top of income tax, with limited exceptions.
  • The amount you owe depends on your total income for the year, not just the pension withdrawal.

How withholding works and why it is often not enough

When you start receiving pension payments, your provider asks you to fill out a W-4P form (or equivalent) to tell them how much tax to withhold. The default is usually 10 percent, though you can request more or less. That withheld amount goes to the IRS, and you see it as a reduction in your monthly or annual payment.

The problem: 10 percent is rarely the right amount. Your actual tax rate depends on your total income for the year — not just the pension. If you have Social Security, investment income, or a part-time job, your tax bracket is higher than the withholding assumes. You end up underpaying and owing money in April.

You can adjust your withholding at any time by contacting your pension administrator and requesting a new W-4P. If you know you will owe, it is better to increase withholding now than to face a bill later. Some people choose to withhold 25 or 30 percent to be safe, especially in the first year of retirement when income is unpredictable.

Early withdrawals and the 10 percent penalty

If you withdraw from a traditional pension or 401(k) before age 59½, you pay income tax plus a 10 percent early-withdrawal penalty on the amount withdrawn. This penalty is separate from income tax and applies to the full withdrawal, not just a portion.

There are narrow exceptions. You can withdraw penalty-free if you are permanently disabled, if you take substantially equal periodic payments (a specific IRS formula), if you withdraw to pay unreimbursed medical expenses above 7.5 percent of your adjusted gross income, or if you are unemployed and using the money for health insurance premiums. Some plans also allow penalty-free withdrawals for a first-time home purchase (up to $10,000 lifetime) or for certain hardships, though this varies by plan.

If none of these exceptions explore, the 10 percent penalty is in addition to the income tax you owe. A $10,000 withdrawal at age 55 might cost you $1,000 in penalty plus $2,000 to $3,000 in income tax, depending on your tax bracket.

State income tax on pensions

Federal income tax is only part of the bill. Most states also tax pension income, though the rules vary widely. Some states exempt pension income entirely, some tax it like wages, and some offer partial deductions for retirees.

States that do not tax pension income include Florida, Illinois, Mississippi, Pennsylvania, and Tennessee, among others. States that tax pensions fully include California, New York, and Oregon. Many states in the middle offer a partial deduction — for example, allowing retirees over 65 to exclude a certain dollar amount or percentage of pension income.

Your pension provider will not automatically withhold state tax. You may need to request it separately, or you may owe state taxes when you file your state return. If you move to a different state in retirement, your tax situation changes — what was tax-free in one state may be taxable in another.

How your total income affects your tax rate

The tax you pay on a pension withdrawal depends on your total taxable income for the year, not just the pension amount. If you have Social Security, investment gains, rental income, or other sources, they all stack together to determine your tax bracket.

This matters because it can push you into a higher bracket. A $30,000 pension withdrawal might be taxed at 12 percent if it is your only income, but at 22 percent if you also have $40,000 in Social Security. The same withdrawal costs you $3,600 in the first scenario and $6,600 in the second.

It also matters for Social Security taxation. If your pension plus half your Social Security exceeds certain thresholds ($25,000 for single filers, $32,000 for married filing jointly), up to 85 percent of your Social Security becomes taxable. A large pension withdrawal can trigger this, making your overall tax bill much higher than the withholding on the pension alone suggests.

Lump-sum distributions and special tax rules

If your pension plan allows you to take a lump-sum distribution — the entire balance at once — you have options for how to handle the tax. You can take the money directly and pay income tax on it all in one year, or you can roll it into an IRA or another may have access to plan and defer the tax.

If you take the lump sum directly, the plan will withhold 20 percent automatically. But if the full amount pushes you into a much higher tax bracket, you may owe significantly more than 20 percent. Some people use income averaging — an IRS method that lets you spread the lump sum over multiple years for tax purposes — though this is only available in certain situations and requires careful planning.

A direct rollover to an IRA avoids when ready taxation and gives you more control over when and how much to withdraw later. This is usually the better choice if you do not need the money right away.

Required minimum distributions and mandatory taxation

Once you reach age 73 (as of 2023; this age increases gradually), the IRS requires you to withdraw a minimum amount from traditional pensions and 401(k)s each year. These required minimum distributions (RMDs) are calculated based on your age and account balance, and you must pay income tax on them whether you need the money or not.

If you do not take your RMD, the IRS imposes a penalty of 25 percent of the amount you should have withdrawn (reduced to 10 percent in certain cases). This is one of the harshest penalties in the tax code, so it is important to know your RMD amount and take it on time.

Roth IRAs do not require distributions during the account holder's lifetime, but Roth 401(k)s do. If you have a Roth 401(k), you can roll it into a Roth IRA to avoid RMDs, though this requires a separate transaction.

Frequently Asked Questions

Do I have to pay taxes on my entire pension, or just the part I did not contribute?

With a traditional pension, you pay taxes on the entire withdrawal, including the part you contributed with pre-tax dollars. If you made after-tax contributions (which is rare), you can exclude that portion. Your pension provider should have records of any after-tax contributions and can tell you the non-taxable amount.

What happens if my pension provider does not withhold enough tax?

You will owe the difference when you file your tax return. You can avoid this by increasing your withholding now through a new W-4P form, or by making quarterly estimated tax payments to the IRS. The IRS charges interest on underpaid taxes, so it is better to adjust early.

Can I avoid taxes by rolling my pension into an IRA?

A direct rollover to an IRA defers taxes but does not eliminate them. You will pay income tax when you eventually withdraw from the IRA. The advantage is control: you decide when to withdraw and how much, rather than taking a lump sum all at once and facing a larger tax bill that year.

Are military or government pensions taxed differently?

Military pensions are taxed as ordinary income by the federal government. Some states exempt military pensions entirely, while others tax them like any other pension. Government employee pensions follow the same federal rules as private pensions, though state treatment varies.

What if I move to another country after retiring?

You still owe U.S. federal income tax on your pension withdrawals, even if you live abroad. You may also owe taxes to your new country of residence. The U.S. has tax treaties with many countries to prevent double taxation, but you will need to file returns in both places and may need help from a tax professional familiar with expat rules.