How to Rollover a 401k to Roth IRA Without Penalty

Moving an old 401(k) into a Roth IRA trades a tax bill today for tax-free withdrawals later. Done the right way, there is no penalty at all.

To roll a 401(k) into a Roth IRA without a penalty, ask your plan for a direct rollover (trustee-to-trustee) to a Roth IRA, have no tax withheld from it, and pay the income tax on the pre-tax portion from other savings. The IRS treats it as a Roth conversion: the pre-tax amount is added to your income for the year, but the 10% early-distribution tax doesn't apply. The penalty can only come back if you're under 59½ and withdraw converted dollars within five years.

Estimate the tax first with the 401(k) rollover calculator or the more detailed Roth conversion calculator. To check how much you can also contribute to a Roth IRA directly under the 2026 income limits, use the Roth IRA calculator.

Is a 401(k) to Roth IRA rollover allowed?

Yes. The IRS rollover chart allows a qualified plan, 403(b), or governmental 457(b) to be rolled into a Roth IRA, with the note that pre-tax amounts must be included in income. What you can roll depends on the type of money in the plan:

You generally need a distributable event to move money out of a 401(k): leaving the employer, reaching 59½, or a plan that allows in-service rollovers. If you're still employed, ask whether your plan offers an in-plan Roth conversion instead; the tax result is the same.

Why the direct rollover is the no-penalty route

There are two ways to move the money, and only one is clean.

Direct rollover. The plan sends the money straight to your Roth IRA custodian, sometimes as a check made out to the custodian "for the benefit of" you. Because you never take possession, there is no mandatory 20% withholding and no 60-day deadline.

Indirect (60-day) rollover. The plan pays you, and it must withhold 20% for federal tax. You then have 60 days to deposit the full pre-withholding amount into the Roth IRA. Any amount you can't replace from other funds is a distribution. If you're under 59½, that shortfall is hit with the 10% additional tax as well as income tax.

Example: you request $50,000 as a check. You receive $40,000. If you deposit only $40,000 into the Roth IRA, the missing $10,000 is a taxable distribution plus a $1,000 penalty.

Missed the 60-day deadline?

A late deposit is not a rollover, so the money is taxed as a distribution (plus 10% under 59½) unless the IRS deadline is waived. Today there are three routes, listed in the IRS FAQs on waivers of the 60-day rollover requirement:

• Automatic waiver when a financial institution's error caused the delay and the funds are deposited within one year of the start of the 60-day period.
• Self-certification under Rev. Proc. 2020-46: you give the receiving custodian a model letter stating one of the listed reasons (a misplaced check, a death or serious illness in the family, a postal error, and so on) and deposit the money as soon as practicable, generally within 30 days after the reason ends. It costs nothing, but it is not an IRS ruling; the IRS can still examine it.
• Asking the IRS for a waiver. Until now that meant a private letter ruling. Rev. Proc. 2026-33 creates the IRA Compliance Resolution System (ICRS), effective May 1, 2027. Its voluntary correction program (IVCP) takes waiver requests for late rollovers from IRAs, 401(k)s, 403(b)s and governmental 457(b) plans. During 2027 you can use either a letter ruling or ICRS; from 2028 the IRS expects ICRS to be the only route. The IVCP user fee for a regular submission filed before 2028 is $3,500, so self-certification stays the first choice whenever your reason is on its list.

The simplest protection is the direct rollover, which has no deadline to miss.

The withholding trap on Roth conversions

Some plans offer to withhold income tax from the conversion "so you don't owe at filing time." If you're under 59½, decline. Any amount withheld never reaches the Roth IRA, so it's an ordinary early distribution: taxable and subject to the 10% penalty. Pay the conversion tax with cash from a checking or brokerage account instead, or by raising withholding from your paycheck.

How much tax will the conversion cost?

The pre-tax amount you roll into the Roth IRA is added to your other income and taxed at your marginal rates. Using 2026 brackets and the $16,100 single / $32,200 joint standard deduction:

Example 1: married couple converting $50,000

A married couple filing jointly earns $120,000 in wages. Taxable income before the conversion: $120,000 − $32,200 = $87,800. The 2026 joint 12% bracket ends at $100,800, and the 22% bracket ends at $211,400.

• First $13,000 of the conversion fills the 12% bracket: $13,000 × 12% = $1,560
• Remaining $37,000 is taxed at 22%: $8,140
• Federal tax on the $50,000 conversion: $9,700 (an average of 19.4%)
• 10% penalty: $0

Example 2: how conversion size changes your average rate

A single filer with $60,000 of wages has $43,900 of taxable income, $6,500 below the top of the 12% bracket and $61,800 below the top of the 22% bracket.

Converting $61,800 fills the 22% bracket exactly. Anything above that spills into 24%. Splitting a large balance across several years, ideally low-income years such as a gap between jobs, keeps more of it in the lower brackets. You can roll the whole 401(k) into a traditional IRA first and convert slices each year from there. The Roth conversion ladder strategy shows how to schedule those slices.

State income tax also applies in most states, so add your state rate to the federal numbers above.

Step-by-step: how to request the rollover

1. Open a Roth IRA at the brokerage you want to use and get the account number, the custodian's legal name, and its rollover mailing instructions.
2. Pull your 401(k) statement and identify each money type: pre-tax, Roth 401(k), and after-tax. Ask the plan for your after-tax basis if you made after-tax contributions.
3. Decide the amount to convert. Run the bracket math above. You can't undo a conversion: recharacterizations have been banned since 2018.
4. Call the plan or use its online distribution form and request a "direct rollover to a Roth IRA." If you are splitting the balance, request pre-tax dollars to a traditional IRA and Roth or after-tax dollars to the Roth IRA in the same distribution.
5. Elect zero federal and state withholding on the portion going to the Roth IRA.
6. Confirm the deposit with the IRA custodian and make sure it is coded as a rollover, not a regular contribution.
7. Set aside the tax. Make an estimated payment with Form 1040-ES or raise your paycheck withholding to avoid an underpayment penalty.
8. File it correctly. The plan issues Form 1099-R (box 7 code G for a direct rollover; box 2a shows the taxable amount). Report it on Form 1040 lines 5a and 5b. The Roth IRA custodian reports the incoming rollover on Form 5498, which you keep for your records.

Splitting after-tax money: the tax-free piece

If your 401(k) has after-tax (non-Roth) contributions, IRS Notice 2014-54 lets you direct the after-tax basis to a Roth IRA and the pre-tax dollars to a traditional IRA in one distribution. Example: a $100,000 balance includes $20,000 of after-tax contributions. You can send that $20,000 to a Roth IRA tax-free and the $80,000 pre-tax to a traditional IRA, so nothing is taxed today. Earnings on the after-tax contributions are pre-tax money and follow the same rules as your deferrals.

The two five-year rules you need to know

Rule 1: qualified distributions. Roth IRA earnings come out tax-free only after you are 59½ (or disabled, or the account passes to a beneficiary) and at least five tax years have passed since January 1 of the year you first funded any Roth IRA. Years your money spent in a Roth 401(k) do not count toward the Roth IRA clock. If you've never had a Roth IRA, opening one now with even a small contribution starts the clock.

Rule 2: the conversion clock for the 10% penalty. Each conversion has its own five-year period starting January 1 of the conversion year. If you withdraw converted dollars before that period ends and you're under 59½, the 10% additional tax applies to the taxable portion converted, even though you already paid income tax on it. Roth IRA withdrawals come out in this order: regular contributions first, then conversions (oldest first), then earnings. That ordering is why direct contributions are the safest emergency money in a Roth IRA.

Who benefits most from rolling a 401(k) into a Roth IRA?

A Roth conversion pays off when your tax rate at withdrawal would be higher than your rate today. That tends to be true if:

• You're in a low-income year: between jobs, on a sabbatical, or early in a career.
• You expect large required minimum distributions later. Traditional balances face RMDs starting at 73 (75 if born in 1960 or later); Roth IRAs have none during your lifetime, and since 2024 Roth 401(k)s don't either.
• You want tax diversification, so you can choose taxable or tax-free money each year in retirement.
• You plan to leave the account to heirs, who would otherwise pay tax on inherited traditional IRA withdrawals, generally within 10 years.

It's usually a poor fit if you'd have to pay the tax out of the converted money, if you're in your peak-earning bracket, or if you'll be in a lower bracket in retirement.

If you convert in stages, the Retirement Withdrawal Planner spreadsheet shows how much to convert each year to stay within a chosen bracket, and what that saves over your lifetime.

What else a bigger AGI can affect

The conversion amount raises your adjusted gross income, which feeds other formulas:

• Medicare IRMAA surcharges use your income from two years earlier, so a conversion at 63 can raise premiums at 65.
• ACA premium tax credits shrink as income rises.
• The senior deduction of up to $6,000 per person (2025–2028) phases out above $75,000 of MAGI for single filers and $150,000 for joint filers.
• Social Security taxation rises with provisional income; see the taxable Social Security calculator.
• Income-driven student loan payments are based on AGI.
• Roth IRA contribution eligibility is one exception: conversion income is subtracted when you figure MAGI for the 2026 Roth phase-out ($153,000 to $168,000 single, $242,000 to $252,000 joint), so a conversion alone won't block a direct contribution.

Check your MAGI with the MAGI calculator before you pick a conversion size.

Mistakes that trigger penalties or extra tax

• Taking a check instead of a direct rollover and depositing only the net amount.
• Withholding tax from the conversion while under 59½.
• Converting money you'll need within five years while under 59½.
• Moving RMD money: if you're RMD age, take the year's RMD before rolling the rest; the RMD calculator gives the amount.
• Converting too much in one year and landing in the 24% or 32% bracket when two smaller conversions would have stayed at 22%.
• Forgetting state tax, which can add several percentage points.

Rolling over instead of cashing out

If you're leaving a job early in your career, compare this route with cashing out (the IRA withdrawal tax calculator shows what a withdrawal from the rolled-over IRA would cost instead). On a $40,000 balance, the cash-out in our guide to cashing out a 401(k) at 30 costs about $13,650 in tax and penalty, while a Roth conversion of the same balance costs only the income tax and keeps all $40,000 invested. If your income is too high to contribute to a Roth IRA directly, the backdoor Roth calculator covers the separate pro-rata rules that apply to IRA-to-Roth conversions.