IRA Rollovers vs. Conversions vs. Transfers: Rules, Taxes, Deadlines

The difference between an IRA rollover, a conversion, and a transfer comes down to what’s actually moving. A transfer shifts money between two accounts of the same tax type. A rollover moves money between different plan types, most often from an employer plan into an IRA. A conversion changes the tax status of pre-tax money by moving it into a Roth IRA. Each one triggers different deadlines, withholding rules, and IRS reporting, and mixing them up can cost you a surprise tax bill, a 10% early withdrawal penalty, or a 6% excess contribution tax that compounds every year the mistake sits uncorrected.

Transfers: The Simplest Move

A trustee-to-trustee transfer sends assets directly from one custodian to another, between accounts that share the same tax classification. Traditional IRA to traditional IRA. Roth to Roth. The money never passes through your hands, so the IRS doesn’t treat it as a distribution at all.¹

That single fact is what makes transfers so much lower-risk than rollovers. There’s no 20% withholding, no 1099-R for the movement, no 60-day deadline, and no annual limit. You can transfer an IRA between institutions as many times as you like in a single year.²

The catch is the same-tax-type requirement. Traditional-to-Roth doesn’t qualify as a transfer because the tax status changes; that’s a conversion. If an institution offers to process a cross-type movement as a “transfer,” stop and ask what’s actually happening before signing.

Rollovers: Different Plan Types, Tighter Rules

A rollover typically moves money from an employer plan like a 401(k) into an IRA, or between IRAs of different types. There are two ways to do it, and the mechanics differ sharply.

Direct Rollovers

In a direct rollover, the plan administrator sends the funds straight to the receiving IRA custodian. You never take possession, no tax is withheld, and the money keeps its tax-deferred status. The administrator may cut a check payable to the new custodian “for your benefit,” and that still counts as direct because you never have access to the funds.¹

Indirect Rollovers

In an indirect rollover, the plan pays the money to you. You then have exactly 60 calendar days to deposit it into a qualifying retirement account. Miss that window, and the IRS treats the entire undeposited amount as taxable income for the year you received it. Under 59½ at the time? You’ll also owe a 10% early withdrawal penalty.³⁴ You can roll over a portion and keep the rest, but only the amount deposited within 60 days escapes tax.

The bigger trap with indirect rollovers from employer plans is the mandatory 20% federal withholding on any taxable distribution. If your 401(k) distributes $100,000, you’ll receive $80,000. To roll over the full amount and avoid tax on the withheld portion, you have to come up with $20,000 from other savings and deposit $100,000 into the new IRA. You’ll recover the withheld $20,000 as a refund when you file, but the cash has to come from somewhere first.⁵

The One-Per-Year Limit

The IRS enforces a one-rollover-per-year rule on IRA-to-IRA indirect rollovers. You get one across all of your IRAs during any 12-month period, and the clock starts on the date you receive the distribution, not when you redeposit it. All of your traditional, Roth, SEP, and SIMPLE IRAs count as a single IRA for this purpose.

Violating the rule is worse than most people expect. The second rollover is included in gross income, may trigger the 10% early withdrawal penalty, and if you deposited the funds into an IRA anyway, the IRS treats them as an excess contribution subject to a 6% penalty tax for every year the money remains in the account.¹ Direct trustee-to-trustee movements and rollovers from employer plans do not count against this limit.

If You Miss the 60-Day Deadline

You may be able to self-certify a waiver by sending a written statement to the IRA custodian or plan administrator. The IRS recognizes qualifying reasons that include financial institution error, a lost or misdelivered check, deposit into an account you mistakenly believed was eligible, severe damage to your principal residence, death or serious illness in the family, incarceration, foreign-country restrictions, postal error, an IRS levy whose proceeds were later returned, and the distributing party’s failure to provide required information despite your reasonable efforts.⁶

You must complete the rollover within 30 days after the qualifying reason no longer prevents you from doing so, and the IRS must not have previously denied a waiver for the same distribution. Self-certification doesn’t guarantee acceptance on audit, but it does require the custodian to accept the late contribution and report it as a rollover.

Conversions: Changing the Tax Character

A conversion moves money from a pre-tax retirement account (traditional, SEP, or SIMPLE IRA) into a Roth IRA. The previously untaxed amount is added to your gross income for the year of the conversion. The 10% early withdrawal penalty does not apply to the conversion itself.²⁷

There’s no income limit on who can convert and no cap on how much you can convert in a single year. That’s what makes conversions valuable for high earners locked out of direct Roth contributions. The “backdoor Roth” works by making a non-deductible contribution to a traditional IRA and then converting it to a Roth. Because the contribution was already made with after-tax dollars, only the earnings portion is taxable at conversion.

Conversions must be completed by December 31 to count for that tax year. Unlike regular IRA contributions, which can be made up until the tax filing deadline in April, conversions can’t be backdated. A conversion processed on January 2 counts for that new calendar year no matter when you started the paperwork. You report conversions on IRS Form 8606, which also tracks your after-tax basis across all traditional IRAs.⁸

The Pro-Rata Rule

This is where backdoor Roth strategies fall apart for people who aren’t paying attention. The IRS does not let you cherry-pick which dollars to convert. If you have any pre-tax money in any traditional, SEP, or SIMPLE IRA, the taxable portion of your conversion is calculated proportionally across all of those accounts combined.

Say you have $90,000 in a traditional IRA from deductible contributions and earnings, and you make a $10,000 non-deductible contribution to a separate traditional IRA. Total balance: $100,000. After-tax basis: $10,000, or 10%. Convert $10,000 to a Roth, and only 10% of the conversion ($1,000) is tax-free. The other $9,000 is taxable. The IRS doesn’t care that the non-deductible money sits in a physically separate account. All traditional IRA balances are aggregated based on their combined value as of December 31 of the conversion year.⁹

Employer plans like 401(k)s are not included in the aggregation. If your employer’s plan accepts incoming rollovers, you can roll your pre-tax traditional IRA balance into the 401(k) before converting, which removes it from the pro-rata calculation and leaves only the non-deductible basis behind.

The Five-Year Clock on Converted Funds

Converting money into a Roth IRA doesn’t mean you can withdraw it penalty-free the next day. Each conversion starts its own five-year clock. Withdraw the converted amount before five tax years have passed while you’re under 59½, and the 10% early withdrawal penalty applies to the portion that was included in income at conversion.¹⁰ Once you reach 59½, the penalty no longer applies regardless of how long ago the conversion happened.

The five-year period begins on January 1 of the tax year in which you convert. A conversion completed anytime during 2026 starts its clock on January 1, 2026, ending December 31, 2030. Roth distributions follow a specific ordering rule: regular contributions come out first (always tax- and penalty-free), then converted amounts on a first-in-first-out basis, and finally earnings.¹⁰ Because contributions come out before conversions, the five-year rule only matters once you’ve drawn down more than your total contribution basis.

The SIMPLE IRA Two-Year Restriction

SIMPLE IRAs carry a restriction that catches people off guard. During the first two years of participation, you can only move those funds to another SIMPLE IRA. Transfers or rollovers to a traditional IRA, 401(k), or any other non-SIMPLE account within that window are treated as taxable distributions and hit with a 25% additional tax on the full amount, more than double the usual 10% early withdrawal penalty.¹¹

The two-year clock starts on the date your employer first deposited contributions into your SIMPLE IRA, not the date you opened the account. After the two years, SIMPLE IRA funds can be rolled over tax-free to a traditional IRA, 401(k), 403(b), or governmental 457(b) plan under the normal rollover rules.¹¹

Inherited IRAs Follow Different Rules

The definitions above assume the account is yours. If you inherited an IRA, the movement rules change and depend on whether you’re a surviving spouse.

A surviving spouse can roll the inherited IRA into their own IRA and treat it as always having been theirs, or keep it titled as inherited and delay distributions until the year the deceased spouse would have reached the required beginning age.¹²

Non-spouse beneficiaries cannot roll inherited IRA funds into their own retirement accounts and cannot use 60-day indirect rollovers. The only permitted movement is a direct trustee-to-trustee transfer into an inherited IRA that remains titled in the deceased owner’s name for the benefit of the beneficiary. If a non-spouse beneficiary receives a check for inherited assets, the full amount is taxable as ordinary income and cannot be redeposited.¹² For deaths in 2020 or later, most non-spouse beneficiaries must also empty the inherited account within 10 years of the original owner’s death, and transferring between custodians does not reset that clock.

Getting the Paperwork Right

Whichever type of movement you’re making, the receiving institution drives the process. You’ll complete a Transfer of Assets form or Rollover Certification form from the new custodian, listing the full legal name and account number of both institutions along with your Social Security number. You’ll also specify full or partial movement, and whether assets should be liquidated or transferred in kind.

Under FINRA rules, the delivering firm must validate or reject a transfer instruction within three business days of receiving it.¹³ Standard electronic transfers between brokerages typically complete in one to two weeks. Transfers involving alternative investments, annuities, or firms outside the electronic system take longer and require manual handling. Before initiating any in-kind transfer, save your own copy of the cost basis records from the delivering institution, because that data doesn’t always arrive complete on the other side.

1
Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
2
Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements
3
Legal Information Institute. 26 USC 408(d)(3)
4
Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
5
Internal Revenue Service. Topic No. 413, Rollovers From Retirement Plans
6
Internal Revenue Service. Revenue Procedure 2016-47
7
Internal Revenue Service. Retirement Plans FAQs Regarding IRAs
8
Internal Revenue Service. About Form 8606, Nondeductible IRAs
9
Internal Revenue Service. Instructions for Form 8606
10
Office of the Law Revision Counsel. 26 USC 408A – Roth IRAs
11
Internal Revenue Service. SIMPLE IRA Withdrawal and Transfer Rules
12
Internal Revenue Service. Retirement Topics – Beneficiary
13
FINRA. Customer Account Transfers