How long a Roth conversion takes depends almost entirely on whether the money is already at the same custodian. A same-firm conversion can post the same day; a conversion that first moves money between two institutions can run one to three weeks. Either way, the date the money lands in the Roth fixes the tax year, not the day you decided.
A same-custodian Roth conversion (traditional IRA to Roth IRA at the same firm) usually posts the same day or within one to two business days when requested before the 4 p.m. ET cutoff. A conversion that first requires moving money between custodians takes roughly one to three weeks. What matters for taxes is the December 31 credited-by date, not how fast the transaction processes.
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How long does a Roth conversion actually take?
A Roth conversion takes anywhere from the same business day to about three weeks, and the biggest variable is location. If the traditional IRA and the Roth IRA are at the same custodian, the conversion is an internal move that often settles in one business day. If the money must travel between institutions first, the full trip commonly runs seven to twenty-one business days.
Same custodian (traditional IRA to Roth IRA at the same firm): same day to 1 to 2 business days
When both accounts sit at one firm, a Roth conversion moves nothing between institutions; the custodian simply reclassifies assets from the traditional IRA to the Roth IRA on its own books. Settled cash and in-kind conversions of already-settled securities typically appear the same day or the next business day when submitted before the 4 p.m. ET cutoff. For sizing the amount first, see our guidance on how much to convert to Roth.
Different custodians (moving accounts, then converting): 1 to 3 weeks
When the traditional IRA is at one firm and you want the Roth at another, the conversion cannot happen until the money arrives at the receiving custodian. Liquid assets commonly move in three to ten business days; positions that must be liquidated first, or accounts moved by mailed check, stretch the end-to-end timeline to roughly seven to twenty-one business days.
- A trustee-to-trustee transfer moves the IRA to the receiving custodian.
- The receiving custodian runs the conversion internally once the funds have settled.
Timeline comparison table
The table below lays the common Roth conversion timelines side by side, from a same-custodian move of settled cash to a cross-custodian transfer that must be liquidated or mailed by check. Read it as a planning guide: the further right a scenario sits, the more calendar buffer it needs before a December 31 deadline. Confirm exact cutoffs with your own custodian.
| Method | Typical time to complete | What can slow it down |
|---|---|---|
| Same custodian, cash already settled | Same day to 1 business day | Request placed after the 4 p.m. ET cutoff |
| Same custodian, new deposit into the traditional IRA first | Roughly 1 week (deposit must clear before converting) | Bank funding hold; a holding period on new deposits |
| Cross-custodian, liquid assets (trustee-to-trustee) | 3 to 10 business days for the transfer, then 1 day to convert | Receiving custodian paperwork, medallion signature requirements |
| Cross-custodian, assets must be liquidated or moved by check | 7 to 21 business days end to end | Liquidation settlement, mailed checks, indirect (60-day) handling |
How long does a Roth conversion take at Fidelity, Schwab, and Vanguard?
At Fidelity, Schwab, and Vanguard, a same-firm Roth conversion of settled cash completes fast: Schwab often shows the converted amount immediately when submitted before 4 p.m. ET, Fidelity processes in minutes but posts by the next business day, and Vanguard usually transacts the same day with details settling within a day or two. External funding adds clearing time on top.
Fidelity: completes in minutes, posts by the next business day
At Fidelity, an online conversion between a same-firm traditional IRA and Roth IRA funded with settled cash processes within minutes and generally appears in the Roth by the next business day. If the traditional IRA was just funded from an outside bank, expect roughly a week for that deposit to clear before the conversion can run.
Schwab: appears immediately if submitted before 4 p.m. ET
At Charles Schwab, a conversion of cash or eligible securities between same-firm IRAs commonly appears in the Roth immediately when submitted before the 4 p.m. ET cutoff. Requests entered after the cutoff are generally processed the next business day before the market opens.
Vanguard: transacts same day, details settle in a day or two
At Vanguard, a same-firm conversion of settled funds usually transacts the same day, with the account view and cost-basis details settling within one to two business days. As with the others, money coming from an external account must clear first, which adds time to the front end.
What actually decides which tax year your conversion counts for
The tax year of a Roth conversion is set by the date the funds are credited to the Roth IRA, not the date you requested or decided on it. Funds must land in the Roth by December 31 to count for that calendar year. A conversion that credits on January 2 is a next-year event, no matter when you started it.
The December 31 deadline is a “credited-by” date, not a “requested-by” date
A Roth conversion has no April tax-filing extension. Unlike an IRA contribution, which you can make until the prior-year filing deadline, a conversion counts only for the calendar year in which the money is credited to the Roth IRA. The IRS looks at the posting date, so December 31 is a hard credited-by line. For the full year-end mechanics, see our Roth conversion deadline 2026 explainer.
Why a conversion you decide on in December but that completes in January is a next-year conversion
Searchers routinely conflate three dates: the day they decide, the day they submit the request, and the day the money posts. Only the last one matters. If you decide in late December but the transaction, especially a cross-custodian move, does not credit the Roth until January, it is a conversion for the new year, and the taxable income shifts to that later year with it.
How early should you start a year-end conversion?
For a same-custodian conversion of settled cash, the December 31 cutoff is the outer limit, though earlier is safer. For anything involving a transfer between firms, many investors initiate by early to mid December (roughly December 1 to 15) to leave a buffer that absorbs holiday closures, settlement delays, and paperwork so the money credits before year end.
Timeline traps that catch people off guard
Three timing traps derail routine Roth conversions: a holding period on brand-new deposits before they can be converted, the 60-day clock on money you take as a check, and year-end cross-custodian transfers that slip into January and become next-year or failed conversions. Each is a calendar problem, not a paperwork problem.
The holding period on new deposits before you can convert them (backdoor Roth)
Investors doing a backdoor Roth often hit an overlooked wait. Several custodians place a holding period, commonly around six business days, on a brand-new deposit into a traditional IRA before those funds can be converted. If you fund the nondeductible traditional IRA and expect to convert the same afternoon, that hold can stall you into the next week, so many investors fund early enough that it clears before December 31.
The 60-day rule if you take the money as a check yourself
If you complete a conversion indirectly, meaning the custodian distributes the money to you and you redeposit it into the Roth, you have 60 calendar days from receipt to finish the deposit. Miss the window and the distribution becomes taxable, and if you are under age 59 and a half it can also trigger the 10 percent early-distribution penalty. A direct trustee-to-trustee conversion avoids the 60-day clock entirely, which many investors prefer for that reason.
Year-end cross-custodian transfers that slip into January
A cross-custodian transfer started in the last week of December is the classic failure point. If the transfer and conversion do not credit the Roth by December 31, the conversion becomes a next-year event, undoing the tax-year plan behind the timing. When year-end timing is tight, many investors treat a same-custodian conversion as the more dependable option.
How long the conversion takes vs. the 5-year rule (they are not the same clock)
The processing time and the 5-year rule are two unrelated clocks. The conversion itself posts in days. The 5-year rule is a separate holding requirement that starts on January 1 of the year the conversion is credited and governs when converted funds can be withdrawn penalty-free. How fast the transaction processed has no bearing on that countdown.
The conversion posts in days; the 5-year withdrawal clock runs separately from Jan 1 of the conversion year
Each Roth conversion starts its own five-year clock, measured from January 1 of the year it is credited to the Roth. Withdraw converted principal before that period ends and, if you are under 59 and a half, a 10 percent penalty can apply to those dollars, as our guide to the Roth conversion 5-year rule explains.
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Frequently asked questions
How long does it take for a Roth conversion to complete?
A same-custodian Roth conversion of settled cash usually completes the same day or within one to two business days when submitted before the 4 p.m. ET cutoff. A conversion that first requires moving money between custodians takes about one to three weeks, because the trustee-to-trustee transfer has to finish before the conversion can run.
How long does a Roth conversion take at Fidelity?
At Fidelity, an online conversion between a same-firm traditional IRA and Roth IRA funded with settled cash processes within minutes and generally posts to the Roth by the next business day. If the traditional IRA was just funded from an outside bank account, expect roughly a week for that deposit to clear before you can convert it.
Does a Roth conversion count for the year you request it or the year it completes?
A Roth conversion counts for the tax year in which the funds are credited to the Roth IRA, not the year you requested it. If the money posts on December 30, it is a current-year conversion; if it posts on January 2, it is a next-year conversion, even if you started the request in December.
What is the deadline for a Roth conversion?
The deadline is December 31 of the tax year, and it is a credited-by date. The converted funds must actually be posted to the Roth IRA by year end. Unlike an IRA contribution, a conversion has no April filing-deadline extension, so a conversion completed in January counts for the new year, not the prior one.
Can I do a Roth conversion at the end of December?
Yes, if both IRAs are at the same custodian and the cash is already settled, a late-December conversion can post the same day before the year-end cutoff. A cross-custodian transfer started that late may not credit the Roth by December 31, in which case it counts as a next-year conversion. Many people initiate year-end transfers by early to mid December for that reason.
How long does it take to transfer an IRA between custodians?
A trustee-to-trustee IRA transfer between custodians typically takes three to ten business days for liquid assets. Positions that must be liquidated first, or accounts moved by mailed check, can push the transfer to seven to twenty-one business days. Only after it completes can the receiving custodian run the conversion.
How long do I have to complete a Roth conversion once I start it?
A direct trustee-to-trustee conversion has no deposit deadline because the money moves institution to institution without passing through you. An indirect conversion, where the custodian sends you a check, must be redeposited into the Roth within 60 calendar days of receipt, or the distribution becomes taxable, plus a possible 10 percent penalty if you are under 59 and a half.
When does the 5-year clock start on a Roth conversion?
The 5-year clock on a Roth conversion starts on January 1 of the year the conversion is credited to the Roth IRA, regardless of the actual conversion date within that year. Each conversion has its own five-year clock. Withdrawing converted principal before it ends can trigger a 10 percent penalty if you are under age 59 and a half.
