When Do You Pay Taxes on a Rollover IRA?

You do not pay taxes on a rollover IRA when pre-tax retirement money moves into another pre-tax account, or Roth money moves into another Roth account, through a direct trustee-to-trustee transfer. Tax gets triggered in a short list of specific situations: converting pre-tax dollars to a Roth, missing the 60-day deadline on an indirect rollover, letting the mandatory 20% withholding turn into a distribution, or breaking the one-rollover-per-year rule. Everything below is about staying on the tax-free side of that line, and knowing what it costs when you cross it.

Rollovers That Stay Tax-Free

Moving money between accounts of the same tax type keeps the IRS out of it. Rolling a traditional 401(k) or 403(b) into a traditional IRA leaves everything tax-deferred; you owe nothing until you take withdrawals in retirement.¹ Roth-to-Roth works the same way: a Roth 401(k) into a Roth IRA keeps future qualified withdrawals tax-free.²

Most employer plans are eligible to roll over, including 401(k)s, 403(b)s, and governmental 457(b) plans. A rollover doesn’t count against your annual IRA contribution limit, so a six-figure balance can move without brushing up against the $7,500 cap for 2026.³

Roth Conversions: The Deliberate Tax Bill

The one type of rollover that always triggers tax is moving pre-tax money into a Roth IRA. This is a Roth conversion, and the entire converted amount is added to your ordinary income for that tax year.⁴ Convert $80,000 from a traditional IRA to a Roth, and $80,000 lands on that year’s return as taxable income.

The conversion itself is exempt from the 10% early withdrawal penalty, even if you’re under 59½.⁵ But if you later withdraw the converted dollars from the Roth within five years of the conversion while still under 59½, the 10% penalty can apply to that withdrawal. The tax on the conversion is ordinary income tax only.

Conversions are often timed for a year when income dips: between jobs, early in retirement, during a sabbatical. Paying at a lower bracket now can be worth it if you expect a higher bracket later. Whether the math works depends on the comparison between your current bracket and your projected retirement bracket.

The Pro-Rata Rule Catches Backdoor Roths

If you have both deductible and nondeductible contributions across your traditional IRAs, you cannot cherry-pick only the after-tax money for conversion. The IRS treats all your traditional IRA balances as a single pool and applies a pro-rata calculation to figure the taxable share of any conversion or distribution.⁶

Say you have $10,000 in nondeductible contributions in one traditional IRA and $30,000 of deductible contributions and earnings in another. Total balance: $40,000. Pre-tax share: 75%. Convert $10,000 to a Roth intending to move only the after-tax money, and 75% of that conversion ($7,500) is still taxable. This surprises a lot of people attempting a backdoor Roth while holding other traditional IRA balances.

You track and report this on Form 8606, which preserves your nondeductible IRA basis.⁷ Skipping Form 8606 carries a $50 penalty, but the real damage is losing the paper trail of your after-tax basis and paying tax twice on the same dollars when you eventually take distributions.

Direct vs. Indirect Rollovers

How the money moves is where most accidental tax bills come from. A direct rollover sends funds straight from the old custodian to the new one, either electronically or by check made payable to the new custodian. Nothing is withheld, no deadline runs against you, and there’s almost nothing to get wrong.¹

An indirect rollover puts the money in your hands first. The old plan or IRA pays you, and you have 60 calendar days to redeposit the full amount into the new IRA.⁸ Miss that window and the whole distribution becomes taxable. Under 59½? Add the 10% early withdrawal penalty on top.⁵

The 20% Withholding Trap

Indirect rollovers from employer plans have a wrinkle that quietly costs people money. The plan must withhold 20% of the distribution for federal income tax before it hands you the check.¹ So on a $50,000 balance, you receive $40,000. To complete a fully tax-free rollover, you still have to deposit $50,000 into the new IRA within 60 days, which means finding $10,000 of your own money to replace what was withheld.

Deposit only the $40,000, and the IRS treats the missing $10,000 as a taxable distribution. You get credit for the withheld $10,000 when you file, but you may still owe income tax on that portion for the year, plus the early withdrawal penalty if you’re under 59½. The withholding rule alone is why direct rollovers are the safer default in nearly every case.

One Indirect Rollover Per Year

You can do only one indirect IRA-to-IRA rollover in any 12-month period, and the limit runs across all your IRAs, not per account.¹ A second one inside that window becomes a taxable distribution. Direct trustee-to-trustee transfers, rollovers from employer plans to IRAs, and Roth conversions are not subject to this limit, so you can do as many of those as you want in the same year.

What If You Missed the 60-Day Deadline

The IRS has a narrow safety valve. An automatic waiver applies when a financial institution received your funds on time, you gave proper instructions, and the deposit failed solely because of the institution’s error, provided the funds land in the receiving account within one year of the start of the 60-day period.⁸

For everything else, a self-certification process lets you send a written statement to the receiving IRA custodian explaining why you were late. Qualifying reasons include serious illness, a death in the family, a misplaced check that was never cashed, severe damage to your home, incarceration, postal errors, and certain delays caused by the distributing institution.⁹ You must complete the contribution as soon as the reason no longer prevents it; the IRS treats a deposit within 30 days as meeting that requirement.

Self-certification lets the custodian accept and report the contribution as a rollover, but it is not a formal waiver. If audited, the IRS can still decide you didn’t qualify. Keep the certification and supporting documents.

Distributions That Cannot Be Rolled Over

Not every dollar leaving a retirement account is eligible for rollover, and the ones that aren’t stay taxable no matter what you do with them. Required minimum distributions are the biggest example. Your RMD for the year must come out first and cannot be rolled into any retirement account.¹⁰ Take a lump sum in a year an RMD is due, and the RMD portion is carved out and taxed; only the remainder is rollover-eligible.

Hardship withdrawals from employer plans and loan offsets from defaulted plan loans also cannot be rolled over.¹¹ Each is treated as a taxable distribution.

Reporting So a Tax-Free Rollover Stays Tax-Free

Even a clean rollover generates paperwork, and skipping it can create a tax bill the IRS never should have sent. The distributing institution issues Form 1099-R with the gross amount and a distribution code identifying the transaction.¹² The receiving institution reports the incoming contribution on Form 5498.¹³

On your Form 1040, report the gross distribution from the 1099-R and then enter the taxable amount. For a complete tax-free rollover, the taxable amount is zero. Skip that reporting step and the IRS sees a 1099-R distribution with no matching rollover; it can automatically treat the full amount as taxable income.¹

For a Roth conversion, or any traditional IRA holding nondeductible basis, file Form 8606. It calculates the taxable share of the conversion using the pro-rata formula and preserves your after-tax basis for future years.⁷ Skipping it isn’t just the $50 penalty; without that record, you can end up paying tax twice on money you already paid tax on.

State Taxes

Federal rules are only half of it. States with an income tax generally follow the federal treatment, so a properly executed rollover isn’t taxed at the state level either. A Roth conversion or a botched indirect rollover that shows up as a federal distribution will usually show up on your state return the same way. Some states offer partial exemptions for retirement income based on age or dollar thresholds, and states without a personal income tax don’t tax any of it. Before pulling the trigger on a large conversion, check what your state does with the resulting income.

1
Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
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Internal Revenue Service. Rollover Chart
3
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
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Internal Revenue Service. Retirement Plans FAQs Regarding IRAs – Section: Rollovers and Roth Conversions
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Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
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Internal Revenue Service. Rollovers of After-Tax Contributions in Retirement Plans
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Internal Revenue Service. Instructions for Form 8606 (2025)
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Internal Revenue Service. Retirement Plans FAQs Relating to Waivers of the 60-Day Rollover Requirement
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Internal Revenue Service. Revenue Procedure 2020-46 – Waiver of 60-Day Rollover Requirement
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Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs
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Internal Revenue Service. Hardships, Early Withdrawals and Loans
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Internal Revenue Service. Instructions for Forms 1099-R and 5498 (2025)
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Internal Revenue Service. Form 5498 IRA Contribution Information