Is a Roth Conversion Right For Me?
Roth conversions are one of the most common retirement planning strategies clients ask about — and for good reason.
The idea sounds simple: move money from a traditional IRA to a Roth IRA, pay the taxes now, and potentially enjoy tax-free growth and tax-free qualified withdrawals later.
But whether a Roth conversion actually makes sense for you is a much more complicated question.
The key question isn't whether Roth conversions are “good” or “bad.” It’s whether paying taxes today is likely to save you more in taxes later.
That answer depends on your income, tax bracket, retirement timeline, future RMDs, other sources of income, and even your estate planning goals.
What is a Roth conversion?
A Roth conversion is when you transfer money from a traditional IRA into a Roth IRA.
With a traditional IRA, you generally receive a tax deduction when you contribute, and withdrawals are taxed as ordinary income.
Roth IRAs work differently: contributions are made with after-tax dollars, and qualified withdrawals are generally tax-free.
When you convert money from a traditional IRA to a Roth IRA, the amount converted is generally included in your taxable income for that year.
For example, if you convert $50,000 from a traditional IRA to a Roth IRA, you generally add $50,000 to your taxable income for that year.
That can create a significant tax bill — which is why the timing and amount of the conversion matter.
Why would you choose to pay the tax now?
At first glance, paying taxes earlier than necessary may not sound particularly appealing.
But there can be a valuable trade-off.
Once money is in a Roth IRA, future qualified withdrawals are tax-free. Roth IRAs also aren't subject to lifetime RMDs for the original owner, which can provide additional flexibility in retirement.
So the strategy is essentially a bet on your future financial circumstances:
Pay taxes at your ordinary income tax rate today, in exchange for potentially avoiding higher taxes (for you or your heirs) in the future.
When might a Roth conversion make sense?
There are several situations where a Roth conversion may be worth exploring:
You're temporarily in a lower tax bracket
Your taxable income can change significantly throughout your life.
You may be earning less after retiring than you did during your peak working years. Or perhaps you've retired but haven't yet started Social Security Benefits or Required Minimum Distributions (RMDs).
That can create a temporary period when your taxable income is relatively low.
A Roth conversion during that window may allow you to pay taxes at a lower rate than you would have paid later.
You've retired but haven't started RMDs
The years between retirement and the beginning of RMDs can be particularly valuable for tax planning.
Once RMDs begin, you may be required to withdraw money from your traditional retirement accounts each year — whether you need the money or not.
Those withdrawals generally increase your taxable income.
If you have several years before RMDs begin, you may have an opportunity to gradually convert portions of your traditional IRA to a Roth IRA while keeping your income within a targeted tax bracket.
You have cash available outside your IRA
Paying the tax on a Roth conversion from money outside your retirement account can make the strategy more attractive.
For example, suppose you convert $50,000 and owe $12,000 in federal and state taxes as a result.
If you can pay that $12,000 from cash or another non-retirement account, the full $50,000 can remain in the Roth IRA and continue growing.
If instead you withhold the taxes from the conversion itself, less money makes it into the Roth IRA.
That doesn't automatically make one approach better, but having outside funds available to pay the taxes can improve the long-term economics of a conversion.
You have a large traditional IRA (or 401k/403b/457b) balance
A large pre-tax retirement account (IRA, 401k, 401a, 403b, 457b) balance can create future tax consequences.
RMDs are based on your retirement account balance and can become substantial as the account grows. Those distributions may push you into higher tax brackets later in retirement.
Converting portions of the account over several years can reduce the amount remaining in your traditional IRA — and therefore potentially reduce future RMDs.
This can be particularly useful when viewed as a long-term strategy rather than a one-time transaction.
You're thinking about your surviving spouse
The reality is that your current ‘married filing joint’ tax status will most likely change at some point in the future.
This means the surviving spouse is put into the more condensed ‘single’ tax bracket, potentially owing more in taxes as a single taxpayer for the same amount of pre-tax account distribution.
You're thinking about your heirs
Roth conversions can also be part of an estate planning strategy.
Inherited traditional IRAs can create taxable income for beneficiaries when distributions are taken. Depending on the beneficiary's circumstances, that income may be taxed at a relatively high marginal rate. (Though not necessarily.)
A Roth IRA, on the other hand, can provide beneficiaries with tax-free qualified distributions.
That doesn't necessarily mean a Roth conversion will leave your heirs more money. You have to consider the tax cost of converting today compared with the potential tax savings for your beneficiaries.
But for someone who expects to leave retirement assets to children or other heirs, it's worth including in the conversation.
When might a Roth conversion not make sense?
Roth conversions aren't automatically beneficial.
In fact, converting too much at the wrong time can create unintended consequences.
For example, a conversion may not make sense if:
You're already in a high tax bracket and the conversion would push even more income into higher brackets.
You expect your taxable income and tax rate to be significantly lower in the future.
The additional income could increase your Medicare premiums through the income-related monthly adjustment amount (IRMAA).
You're receiving ACA premium tax credits and the additional income could reduce or eliminate your eligibility.
You don't have enough cash outside the IRA to comfortably pay the resulting tax bill.
The conversion would create a large tax liability without providing a meaningful long-term benefit.
There are many reasons Roth conversions should not be evaluated in isolation.
A conversion that looks attractive based solely on your federal tax bracket could look very different once state taxes, Medicare premiums, ACA subsidies, and your broader retirement income plan are considered.
You don't have to convert everything
One of the biggest misconceptions about Roth conversions is that they're an all-or-nothing decision.
They're not.
You don't have to convert your entire traditional IRA — or even a large portion of it.
Instead, you can convert smaller amounts over multiple years.
For example, someone might decide to convert $25,000 or $50,000 each year rather than converting $300,000 all at once. The goal may be to take advantage of lower tax brackets without unnecessarily pushing income into higher ones.
This approach also allows you to reassess each year.
Your income may change. Tax laws may change. Your retirement spending may change. Your Social Security benefits may begin. Your Medicare premiums may change.
A Roth conversion strategy can change with you.
The bottom line
A Roth conversion isn't really about deciding whether you want to pay taxes now or later.
It's about when you want to pay the taxes, how much you want to pay, and whether paying them now is likely to improve your family’s overall financial picture.
For some retirees, converting money to a Roth during a lower-income period can be an incredibly valuable planning strategy.
For others, the immediate tax cost simply isn't worth it.
The most important thing is to look beyond the Roth IRA itself.
Consider your current tax bracket, projected retirement income, future RMDs, Medicare premiums, Social Security, estate planning goals, and the tax laws that apply to your situation.
And remember: you don't have to make the same Roth conversion decision every year.
Your financial plan should be flexible enough to evaluate the opportunity as your circumstances change.
This article is for educational purposes only and is not intended to provide individualized tax or investment advice. Roth conversions can have significant tax consequences. Consult with your financial advisor and tax professional before implementing a Roth conversion strategy.
