How to Rollover a Traditional IRA to a Roth IRA
The traditional IRA is the primary destination for most rollover assets — it is the most common IRA type by total assets.
01Executive Overview
A Traditional IRA rollover to a Roth IRA is a taxable conversion event that moves pre-tax retirement assets into a permanently tax-free Roth structure. This guide follows the procedural framework of IRS Publication 590-A (Contributions to Individual Retirement Arrangements) and IRS Publication 590-A.
Source Account: Traditional IRA
- Governing Code
- IRC Section 408(a)
- Plan Category
- individual retirement account
- Tax Character
- pre-tax (if deductible) or after-tax (non-deductible)
- Sponsor Type
- self-directed (no employer sponsor)
- 2026 Contribution Limit
- $7,000 (+$1,000 catch-up age 50+)
- Rollover Trigger
- Traditional IRAs can receive rollovers at any time. There is no triggering event required — you can initiate a rollover from another IRA or from a qualified plan at any point.
Destination Account: Roth IRA
- Account Class
- individual retirement account
- Tax Character
- post-tax
- Setup Time
- Same day to 3 business days (online); 5–10 business days (full-service)
- Minimum to Open
- $0 at major custodians
- RMD Implication
- No RMDs during owner's lifetime (Roth)
- Rollover Acceptance
- Rolling a pre-tax account (401k, traditional IRA, etc.) to a Roth IRA is a Roth conversion — fully taxable in the year of conversion. There is no income limit on conversions. Rolling a Roth 401(k) or Roth 403(b) to a Roth IRA is tax-free. Both are permitted regardless of income.
02Eligibility Rules
Before initiating a Traditional IRA–to–Roth IRA rollover, confirm that both the source plan and the destination account meet IRS eligibility requirements.
Traditional IRAs can receive rollovers at any time. There is no triggering event required — you can initiate a rollover from another IRA or from a qualified plan at any point.
Rolling a pre-tax account (401k, traditional IRA, etc.) to a Roth IRA is a Roth conversion — fully taxable in the year of conversion. There is no income limit on conversions. Rolling a Roth 401(k) or Roth 403(b) to a Roth IRA is tax-free. Both are permitted regardless of income.
Anyone with earned income can contribute to a traditional IRA, but the deductibility of contributions depends on income level and access to a workplace retirement plan. The rollover of qualified plan assets to a traditional IRA is always permitted regardless of income — but future Roth conversions of the rolled amount will be fully taxable.
— IRS Publication 590-A (Contributions to Individual Retirement Arrangements)
03Step-by-Step Rollover Process
The IRS-preferred rollover method is a direct rollover (trustee-to-trustee transfer) — the check is made payable to the new custodian, not to you. This eliminates the mandatory 20% federal withholding and the 60-day deadline risk entirely.
- 1
Open the Roth IRA Account First
Open the receiving Roth IRA account before contacting your Traditional IRA plan administrator. The distributing plan needs the receiving custodian's name, mailing address, and FBO account number to process a direct rollover. Without this information, the plan cannot complete the direct rollover and may default to an indirect rollover.
Setup time: Same day to 3 business days (online); 5–10 business days (full-service)You'll need:- Government-issued ID
- Social Security number
- Bank account for funding
- IRA application
- 2
Request a Direct Rollover from Your Traditional IRA
Contact your Traditional IRA plan administrator and use the words "direct rollover" explicitly. Provide:
- The receiving custodian's full legal name
- The FBO format:
[Custodian Name] FBO [Your Full Name] Roth IRA - The receiving account number
- The custodian's mailing address
Rollovers between traditional IRAs are processed as trustee-to-trustee transfers (preferred) or as 60-day rollovers. Trustee-to-trustee transfers are not reported on Form 1099-R and do not count against the one-rollover-per-12-months rule. This is a critical distinction from qualified plan rollovers.
- 3
Verify the Check Payee
When the distribution check arrives — whether mailed to you for forwarding or directly to the custodian — verify the payee before accepting or forwarding it. The check must be payable to the new custodian, not to you personally.
✓ CorrectFidelity FBO Jane Smith IRA #123456789✗ Incorrect (Triggers 20% Withholding)Jane SmithIf the check is made payable to you personally, contact the plan administrator immediately. Do not deposit it into a personal bank account — doing so converts it into an indirect rollover subject to 20% withholding and the 60-day deadline.
- 4
Deposit as a Rollover Contribution
When delivering the check or wire to the receiving custodian, specify it as a "rollover contribution" — not a regular annual IRA contribution. This critical coding ensures the amount is not counted against your 2026 IRA contribution limit ($7,000 for 2026).
For Roth 401(k)/403(b) to Roth IRA: direct rollover, no tax event. For traditional 401(k) to Roth IRA: the plan may issue a direct conversion check or may require a two-step process (distribute to traditional IRA first, then convert). Confirm with both the plan administrator and the receiving Roth IRA custodian before initiating.
Posting time after receipt: 1–3 business days - 5
Confirm Tax Documentation
In January of the following year, verify you receive:
- Form 1099-R from the Traditional IRA plan — shows the gross distribution with Distribution Code 2 or 7. Report on Form 1040 Line 5a with the taxable conversion amount on Line 5b.
- Form 5498 from the receiving Roth IRA custodian — issued by May 31, confirms the rollover contribution was received and properly coded.
Form 8606 Required: File Form 8606 Part II to report the Roth conversion amount and calculate the taxable portion under the pro-rata rule if your Traditional IRA contains non-deductible contributions.
04Processing Timeline
Most Traditional IRA–to–Roth IRA rollovers complete in 7–14 business days from request submission to funds credited at the receiving institution. The timeline varies significantly by plan administrator and asset type.
Open Receiving Account
Open Roth IRA at the chosen custodian. Receive account number.
Same day to 3 business days (online); 5–10 business days (full-service)Submit Rollover Request
Contact Traditional IRA plan administrator with receiving custodian's FBO information. Request direct rollover in writing.
1 business dayPlan Administrator Processing
Plan administrator verifies eligibility, vesting, and outstanding loans. Prepares distribution check or wire.
3–10 business daysCheck or Wire Transfer
Plan issues check (3–5 postal days) or wire (same business day). Wire transfers are strongly recommended for large balances to eliminate postal delay and lost-check risk.
1–5 business daysCustodian Posts Rollover
Receiving Roth IRA custodian credits the rollover contribution. Funds available for investment or investment direction.
1–3 business daysThe 60-day window begins on the date you receive the distribution check — not the date it was issued or postmarked. For direct rollovers, no 60-day deadline applies. If you receive a check payable to you, you have exactly 60 calendar days to deposit 100% of the gross amount (including the 20% withheld) into the new account. Missing the deadline by even one day creates a taxable event with no automatic remedy.
05Tax & Penalty Guide
Roth Conversion Tax Summary
Understanding the Roth Conversion Tax Cost
Any pre-tax funds rolled to a Roth IRA trigger a taxable conversion event. The converted amount is added to ordinary income for the year of conversion. There is no 10% early withdrawal penalty on the conversion amount itself — but the income tax liability is immediate and real. A $100,000 conversion in the 22% bracket creates a $22,000 tax bill due by April 15 of the following year.
Converting a traditional IRA to a Roth IRA is a taxable event. There is no income limit on Roth conversions (the income limit was eliminated in 2010). The converted amount is included in ordinary income. The strategy of converting in lower-income years — often the early retirement years before Social Security and RMDs begin — is known as a 'Roth conversion ladder.'
Early Withdrawal Penalty: 10% federal penalty plus ordinary income tax on pre-tax amounts withdrawn before age 59½
The 10% early withdrawal penalty (IRC Section 72(t)) applies only to taxable distributions taken before age 59½ — not to direct rollovers. The following exceptions eliminate the penalty even on early taxable distributions:
- first-time home purchase (up to $10,000 lifetime)
- qualified higher education expenses
- disability
- death
- substantially equal periodic payments (SEPP/72(t))
- health insurance premiums while unemployed
- unreimbursed medical expenses exceeding 7.5% of AGI
- IRS levy
The traditional IRA is the destination of choice for participants rolling out of 401(k), 403(b), and TSP plans in retirement. For the 55–75 demographic, the primary decision is whether to convert to a Roth IRA (and pay taxes now) versus maintaining the traditional IRA structure (and facing RMDs later). This decision is the most consequential retirement tax planning choice most individuals will face.
06IRS Reporting Requirements
Every retirement account rollover — including non-taxable direct rollovers — requires reporting on your federal tax return. Failing to report a rollover, even a tax-free one, triggers the IRS's Automated Underreporter (AUR) program to propose tax on the full distribution amount.
Distribution Report
Issued by your Traditional IRA plan. Shows the gross distribution (Box 1) and Distribution Code in Box 7.
- Line 5a = Box 1 amount ($200,000 example)
- Line 5b = taxable conversion amount (from Form 8606 if applicable)
Rollover Confirmation
Issued by your Roth IRA custodian. Confirms the rollover was received and properly coded in Box 2 (rollover contributions) or Box 3 (Roth conversion amount).
Roth Conversion Report
Required for every Roth conversion. Part II calculates the taxable and non-taxable portions under the pro-rata rule if your Traditional IRA contains non-deductible contributions.
IRS Publications Referenced in This Guide
- IRS Publication 590-A (Contributions to Individual Retirement Arrangements) — governing rules for the Traditional IRA
- IRS Publication 590-A (Contributions to IRAs — Roth conversion rules) — governing rules for the Roth IRA as receiving account
- IRS Publication 590-B (Distributions from Individual Retirement Arrangements)
- IRS Notice 2009-68 — Safe Harbor Explanation for Eligible Rollover Distributions
073 Costly Mistakes to Avoid
These are the most common — and most expensive — errors investors make when rolling over a Traditional IRA to a Roth IRA. Each is preventable with the right procedural knowledge.
Not maintaining Form 8606 for non-deductible contributions
Every non-deductible IRA contribution must be reported on Form 8606 in the year it is made. Without this record, the IRS has no way to distinguish your after-tax basis from pre-tax amounts — and will tax the full distribution as ordinary income. Recovering lost 8606 records requires reconstructing years of contribution history, which is extremely difficult after the fact.
Converting the entire balance in a single tax year without modeling the bracket impact
A full conversion of a $500,000 IRA in one year pushes most taxpayers into the 35% or 37% bracket and triggers Medicare IRMAA surcharges for 2 additional years. The after-tax cost of a one-year conversion is almost always higher than a multi-year partial conversion strategy. Model the conversion over 3–7 years to fill lower brackets — typically the 22% or 24% bracket — before moving up.
Rolling a qualified plan into a traditional IRA that already contains non-deductible contributions
If your traditional IRA contains non-deductible contributions (basis), rolling a large qualified plan distribution into the same IRA dilutes that basis proportionally. This is called the 'IRA aggregation rule.' It can significantly reduce the tax efficiency of future Roth conversions, because all traditional IRA balances are aggregated when calculating the taxable portion of a conversion.
Governed under IRC Section 408(a) and IRS Publication 590-A (contributions) and Publication 590-B (distributions). The 'pro-rata rule' under IRC Section 408(d)(2) determines the taxable portion of any distribution from a traditional IRA that contains both deductible and non-deductible contributions.
08Frequently Asked Questions
- Is there an income limit to roll over a 401(k) to a traditional IRA?
- No. The rollover of qualified plan assets to a traditional IRA has no income limit. Anyone can roll a 401(k), 403(b), TSP, or other qualified plan to a traditional IRA regardless of income level. Income limits apply only to new IRA contributions, not to rollovers.
- How many times can I roll over my traditional IRA per year?
- You may perform only one IRA-to-IRA rollover (60-day rollover) per 12-month period, and this limit applies across all of your IRAs combined. However, trustee-to-trustee transfers — where funds move directly between custodians — are unlimited and are not subject to this restriction.
- What is the pro-rata rule and how does it affect my traditional IRA rollover?
- The pro-rata rule applies when your traditional IRA contains both deductible (pre-tax) and non-deductible (after-tax) contributions. When you take any distribution or do a Roth conversion, the IRS requires you to calculate the taxable portion proportionally across all your traditional IRA balances — you cannot selectively withdraw only the after-tax basis. This rule significantly affects Roth conversion tax planning.
- Is there an income limit to roll over a 401(k) to a Roth IRA?
- No. The income limit that applies to direct Roth IRA contributions does not apply to Roth conversions. Any participant, at any income level, can roll a 401(k), 403(b), traditional IRA, or other qualified plan to a Roth IRA. The trade-off is that the converted amount is fully taxable in the year of conversion.
- What is the best age to convert to a Roth IRA?
- There is no universal answer, but the 'Roth conversion window' — roughly ages 60–72 — is typically optimal for most retirees. Income is often at its lifetime low in early retirement (after earned income stops, before Social Security maximizes at 70, before RMDs begin at 73), creating a multi-year opportunity to convert at lower tax rates.
- Can I roll over a Roth 401(k) to a Roth IRA without paying taxes?
- Yes — rolling a Roth 401(k) to a Roth IRA is a tax-free transaction, provided the receiving account is a Roth IRA (not a traditional IRA). The 5-year clock for the receiving Roth IRA is determined by the date the Roth IRA was first established, not the rollover date.
- Is there a deadline to roll over a Traditional IRA after leaving my employer?
- There is no IRS deadline to initiate a rollover after a triggering event. The 60-day rule only applies once a distribution has been issued to you. However, plan administrators may force distributions for balances under $7,000 within 12–18 months of separation. Address the rollover within 60–90 days to maintain administrative control.
- Does a direct rollover count against my annual IRA contribution limit?
- No. Rollover contributions are separate from and do not count against the annual IRA contribution limit ($7,000 in 2026; $8,000 for those age 50+). A $400,000 rollover into a Roth IRA does not affect your ability to make a regular annual contribution to the same account.