Can I Transfer My 401(k) to a Roth IRA?

Generally, no. Traditional employee deferrals, many employer contributions, and their tax-deferred earnings have not previously been included in income. When an eligible distribution of those amounts enters a Roth IRA, the previously untaxed amount is generally included in gross income for that year. The transaction remains reportable even when the plan sends the money directly to the Roth IRA. [1] [6]

The actual tax depends on the complete return, including filing status, other income, deductions, credits, and state law. A taxable conversion could also affect Social Security taxation or Medicare IRMAA. The Roth Conversion Tax-Bracket & IRMAA Calculator can model an educational estimate without providing rollover instructions.

Traditional salary deferrals and earnings are generally pre-tax. Employer matching or nonelective contributions may also be pre-tax, even when the employee made Roth deferrals. Previously untaxed amounts moved to a Roth IRA are generally taxable in the rollover year. [1] [2]

Added income may enter higher federal bracket layers, face state tax, affect later Medicare IRMAA, or change Social Security taxation. Because a direct rollover may have no withholding, tax-payment planning is worth reviewing. [9] [10] [11]

For related education, review How Roth Conversions Are Taxed and When Roth Conversion Taxes May Be Due.

A designated Roth 401(k) contains after-tax Roth contributions and earnings. Eligible distributions may generally be rolled into a Roth IRA. Qualified distributions are generally tax-free; nonqualified distributions contain proportional contribution basis and earnings, and unrolled earnings may be taxable. [4] [6]

A proper rollover can prevent current taxation, but the account’s qualified status, rollover method, and receiving Roth IRA’s five-year history matter. Time in the Roth 401(k) generally does not carry into the Roth IRA period, although an older existing Roth IRA may establish an earlier start date. Retain plan and basis records. [4]

After-tax non-Roth contributions differ from designated Roth contributions. Their principal has already been taxed, but associated earnings are generally pre-tax. Plan source records are essential. [3]

Want the detailed after-tax rollover mechanics? Read how after-tax 401(k) contributions and earnings can be split between Roth and pre-tax destinations. Valid basis generally is not taxed again, while distributed pre-tax amounts require an eligible pre-tax destination to preserve deferral.

Not in the simplified way many expect. A partial distribution generally includes proportional pre-tax and after-tax amounts. Multiple-destination rules may separate those portions, but generally do not let someone distribute only after-tax dollars while leaving all pre-tax money behind. [3]

A permitted distribution may be divided between pre-tax and Roth destinations. Plan documents, records, eligibility, and custodian instructions control.

A “401(k) rollover to a Roth 401(k)” often means an in-plan Roth rollover. The money remains in the employer plan and moves from a non-Roth source into the plan’s designated Roth account. The plan must offer designated Roth accounts and permit in-plan rollovers; it may specify which vested balances qualify and how often the feature is available. [4] [5]

The taxable amount—generally the value moved minus any basis—is usually included in gross income for the rollover year. A direct in-plan rollover generally has no withholding, but the tax can still be due. An in-plan Roth rollover cannot later be recharacterized back to pre-tax treatment. [4] [5]

Need the 10% rule? Read the penalty-focused 401(k) rollover guide.

All $100,000 can arrive in the Roth IRA while approximately $100,000 is still included in gross income. “The full balance arrived” does not mean “the transaction was tax-free.” Actual federal and state tax depends on the complete return; this example does not calculate an individual tax bill. [1] [6]

This educational example assumes no pre-tax money is sent to the Roth IRA. If any pre-tax portion instead enters Roth, that portion is generally included in income. A partial distribution may still be required to carry proportional pre-tax and after-tax amounts even when those portions are directed to separate destinations. [3]

Only if the plan permits an eligible distribution. Current plans commonly restrict distributions while someone remains employed. Some allow in-service or in-plan Roth rollovers; separation often changes the options. The plan document and administrator control. [2] [8]

• Is any portion currently eligible for distribution?
• Does the plan allow an in-service rollover?
• Does the plan offer an in-plan Roth rollover?
• Which balances are pre-tax, designated Roth, or after-tax non-Roth?
• Are associated earnings separately identified?
• Can one distribution be sent to multiple destinations?
• Which rollover forms and registration instructions are required?

Age 59½ does not guarantee an in-service distribution. Confirm the plan’s terms. [8]

Yes. Required minimum distributions, hardship distributions, certain corrective distributions, specified periodic-payment arrangements, and certain deemed distributions are among the payments generally not eligible for rollover. The complete list contains additional exceptions, and newer distribution categories may have their own treatment. Current IRS Topic 413, rollover guidance, and Notice 2026-13 provide the controlling starting points. [1] [2] [6] [7]

The plan commonly issues Form 1099-R, and the receiving IRA commonly reports the rollover on Form 5498. Plan statements identify account sources. Non-Roth-to-Roth and designated-Roth-to-Roth direct rollovers are reported differently. A rollover remains reportable even when current taxable income is zero. [6]

There is generally no separate Roth-conversion dollar cap like the annual Roth IRA contribution limit. The available amount depends on vested balances and plan rules. RMDs and other ineligible payments cannot be converted. Conversion eligibility differs from contribution eligibility. [1] [12] [13]

No single conversion amount is appropriate for everyone. The taxable impact may affect the amount someone chooses to model. Compare partial Roth conversions, the difference between a Roth conversion and Roth contribution, and several amounts in the tax-bracket calculator.

1. Assuming a direct rollover means pre-tax money becomes tax-free.
2. Confusing designated Roth 401(k) money with after-tax non-Roth contributions.
3. Forgetting that employer contributions and their earnings may be pre-tax.
4. Failing to separate after-tax contribution principal from associated earnings.
5. Receiving the check personally without understanding withholding and the 60-day deadline.
6. Assuming a current-employer plan must permit an outside rollover.
7. Treating a conversion as though it were a regular Roth IRA contribution.
8. Ignoring possible Medicare IRMAA or Social Security taxation effects.
9. Leaving state income tax out of the estimate.
10. Assuming every Roth 401(k) distribution is qualified.
11. Attempting to roll over a required minimum distribution or another ineligible payment.
12. Discarding plan statements, rollover confirmations, and tax forms.

1. Is the plan with a current or former employer?
2. Is the balance currently eligible for distribution?
3. How much is pre-tax?
4. How much is designated Roth?
5. How much is after-tax non-Roth contribution basis?
6. How much consists of associated earnings?
7. Does the plan permit multiple rollover destinations?
8. Is a direct rollover available?
9. What amount is expected to be taxable?
10. Could it cross a federal tax bracket?
11. Could it affect Medicare IRMAA?
12. Could it affect Social Security taxation?
13. Could state income tax apply?
14. Is an RMD or another non-rollover-eligible amount involved?
15. How would any resulting tax be paid?
16. Have the plan administrator and receiving custodian provided matching instructions?

• Pre-tax 401(k) money moved to a Roth IRA is generally taxable.
• A direct rollover generally avoids mandatory withholding, not conversion tax.
• Roth 401(k) money may receive different current tax treatment.
• Valid after-tax employee contributions generally should not be taxed twice.
• Associated earnings are generally pre-tax.
• Plan eligibility and transaction structure matter.