The Basic Steps to Convert Your Traditional IRA

A Roth conversion means moving money from a traditional IRA to a Roth IRA. The IRS treats this as a taxable event in the year you convert — you pay income tax on the amount you move, but the money then grows tax-free in the Roth account. There is no age limit, no income limit, and no annual dollar cap on how much you can convert.

The actual mechanics are straightforward. You contact the financial institution holding your traditional IRA (a bank, brokerage, or investment company) and request a conversion. Some institutions call this a "Roth rollover" or "in-service conversion." The institution transfers the funds directly to a Roth IRA in your name — either an existing Roth account you already own or a new one you open for this purpose. The whole process typically takes one to two weeks.

You do not need permission from anyone to convert. You do not need to be employed. You do not need to have earned income in that year. The only requirement is that you have a traditional IRA with money in it.

Key Takeaways

  • You pay federal income tax on the full amount you convert in the year you convert it, calculated at your ordinary income tax rate.
  • The conversion itself is a one-time action — you contact your IRA custodian, request the transfer, and the money moves to your Roth account.
  • You have until the tax filing deadline (usually April 15 of the following year) to undo a conversion if you change your mind, though this option has restrictions in some years.
  • If you have multiple traditional IRAs, SEP IRAs, or SIMPLE IRAs, the IRS treats them as one account for tax purposes when you convert — you cannot convert just the gains or just one account.
  • Conversions do not count toward the annual Roth contribution limit, so you can convert large amounts in a single year.

Understanding the Tax Bill You Will Owe

The tax cost is the main decision point in any conversion. When you convert $50,000 from a traditional IRA to a Roth, the IRS counts that $50,000 as ordinary income for that tax year. If you are in the 22% federal tax bracket, you owe roughly $11,000 in federal tax. State income tax may apply on top of that, depending on where you live.

The tax is due when you file your return for that year — typically April 15 of the following year. You are not required to pay it immediately, but the IRS expects payment by the deadline. If you do not have cash set aside to pay the tax, you can use funds from outside the IRA, or in some cases withdraw money from the Roth account itself (though this defeats part of the purpose of converting).

The amount of tax you owe depends entirely on your tax bracket that year. If you have a low-income year — you retired early, took unpaid leave, or had business losses — converting during that year costs less in taxes than converting during a high-income year. Some people deliberately time conversions to years when their income is lower.

The Pro-Rata Rule and Why It Matters If You Have Multiple IRAs

If you own both a traditional IRA with pre-tax money and a traditional IRA with after-tax money (or a SEP IRA or SIMPLE IRA), the IRS does not let you convert only the after-tax portion. Instead, it applies the pro-rata rule: the IRS treats all your traditional IRAs as a single pool of money, and calculates what percentage is pre-tax and what percentage is after-tax. You pay tax on that same percentage of whatever you convert.

Example: You have a traditional IRA with $80,000 in pre-tax contributions and $20,000 in after-tax contributions — $100,000 total. You want to convert $30,000 to a Roth. The pro-rata rule says 80% of your IRAs are pre-tax, so 80% of the $30,000 you convert ($24,000) is taxable. You owe tax on $24,000, not $6,000.

This rule applies across all your traditional, SEP, and SIMPLE IRAs combined — it does not matter if they are at different institutions. Roth IRAs do not count toward the pro-rata calculation. If the pro-rata rule would create a large tax bill, some people choose not to convert, or they convert smaller amounts over multiple years.

How to Actually Request the Conversion

Call or log into the website of the institution holding your traditional IRA. Ask to speak with someone in the IRA department, or look for a "Roth conversion" or "IRA rollover" option in your online account. You will need to provide the name and account number of the Roth IRA you want the money to go to — either an existing Roth account you own or the details of a new account you are opening.

Some institutions offer a form you fill out; others handle it over the phone. The custodian will ask how much you want to convert and confirm the destination account. They will also explain that the conversion is a taxable event and that you are responsible for reporting it on your tax return.

Once you submit the request, the institution typically processes it within five to ten business days. You will receive a confirmation statement showing the amount converted and the date. Keep this for your records — you will need it when you file your taxes.

Reporting the Conversion on Your Tax Return

You report a Roth conversion on Form 8606, which is filed with your federal income tax return. This form tells the IRS how much you converted, how much of it was taxable (after applying the pro-rata rule if you have after-tax money), and how much was not taxable.

If you converted $50,000 and all of it was pre-tax money, you report $50,000 as taxable income. The IRS adds this to your other income for the year and calculates your tax bill accordingly. If you had after-tax contributions, Form 8606 shows the calculation that reduced the taxable amount.

You must file Form 8606 even if you owe no tax on the conversion — for example, if you converted only after-tax contributions. Filing it creates a record with the IRS that protects you later if you withdraw money from the Roth account, because the form documents which dollars were already taxed.

The Option to Undo a Conversion (Recharacterization)

If you convert money to a Roth and then change your mind before the tax filing deadline, you can undo the conversion — a process called recharacterization. You contact your Roth IRA custodian and request that they move the money back to a traditional IRA. The conversion is treated as if it never happened, and you do not owe tax on it.

The deadline to recharacterize is the tax filing deadline for that year, usually April 15 of the following year (or October 15 if you file an extension). You must recharacterize the entire converted amount — you cannot recharacterize part of a conversion.

Recharacterization is useful if the market drops after you convert. If you converted $50,000 and it falls to $40,000, recharacterizing lets you undo the conversion and avoid paying tax on money you no longer have. You can then convert again later if you want.

Who Should Consider a Roth Conversion

Conversions make sense for people who expect to be in a higher tax bracket in retirement than they are now, or who want to reduce the size of their traditional IRA to lower required minimum distributions later. They also work well for people in a temporarily low-income year — a year between jobs, a sabbatical, or early retirement before Social Security begins.

Conversions are less attractive if you are currently in a high tax bracket and expect to be in a lower one in retirement, because you pay tax now at a high rate to avoid tax later at a low rate. They are also less useful if you do not have cash outside the IRA to pay the tax bill, because using IRA money to pay the tax reduces the benefit of the conversion.

Some people convert small amounts every year over many years, spreading the tax bill across multiple years and potentially staying in a lower bracket each year. Others do a single large conversion in a low-income year. The right approach depends on your specific situation and tax outlook.

Frequently Asked Questions

Can I convert if I am still working and earning income?

Yes. There is no income limit on conversions, and you do not need to be retired or unemployed. You can convert while you are working full-time. The only effect is that the conversion adds to your taxable income for that year, which may push you into a higher tax bracket.

What happens to the money I convert — can I withdraw it right away?

The money is now in a Roth IRA, so the normal Roth withdrawal rules apply. You can withdraw contributions (the money you converted) at any time without penalty. Earnings on that money must stay in the account until you are 59½ and the account has been open for at least five years, or you pay a 10% penalty plus income tax.

Do I have to convert all my traditional IRAs at once?

No. You can convert some and leave the rest in the traditional IRA. However, if you have multiple traditional IRAs, the pro-rata rule treats them as one account for tax calculation purposes. You cannot convert just one account to avoid the pro-rata rule.

What if I convert and then the market drops — am I stuck with the tax bill?

You can recharacterize (undo) the conversion before the tax filing deadline and avoid the tax bill. If you miss the deadline, you are responsible for the tax on the full amount you converted, even if the money is now worth less.

Does a conversion affect my Social Security benefits or Medicare premiums?

Yes, potentially. The conversion adds to your taxable income for that year, which can affect your Social Security tax (if you are still working) and your Medicare premiums (if you are on Medicare). The impact depends on your total income that year and your specific situation.