Tax Strategy

Roth Conversions: When They Make Sense and When They Don't

August 20266 min read

Converting a traditional IRA to a Roth can be a powerful long-term move — but timing, tax brackets, and estate goals all determine whether it's right for you.

A Roth conversion is one of the most frequently discussed strategies in tax planning — and one of the most frequently misapplied. The concept is simple: you move money from a traditional IRA, where contributions were made pre-tax, into a Roth IRA, where future growth and withdrawals are tax-free. You pay income tax on the converted amount today in exchange for tax-free treatment later.

The question is whether that trade is worth making. The answer depends on several factors, and it is rarely the same for any two clients.

The most straightforward case for a Roth conversion is a temporary period of lower income. If you retire before Social Security begins, or before required minimum distributions kick in at age 73, you may have several years where your taxable income is unusually low. Converting in those years — filling up lower tax brackets deliberately — can be highly efficient. You pay tax at a rate you may never see again.

Estate planning is another compelling reason. Roth IRAs are not subject to required minimum distributions during the owner's lifetime, which means the account can continue growing tax-free for decades. When inherited, a Roth IRA still requires distributions over ten years under current law, but those distributions are tax-free to the beneficiary. For clients who do not need the IRA assets for their own retirement income, a Roth conversion can be a meaningful wealth transfer tool.

Conversions are less attractive when you expect your tax rate to be lower in retirement than it is today, when the tax bill would require liquidating other investments to pay, or when the conversion would push you into a higher Medicare premium bracket (IRMAA). The math also changes if your state has high income taxes that would apply to the conversion.

The right approach is usually not a single large conversion but a series of smaller, carefully sized conversions over several years — converting enough each year to fill a target bracket without crossing into the next. This requires coordinating with your tax advisor and modeling the long-term impact across multiple scenarios. It is the kind of planning that benefits from a consistent relationship with an advisor who knows your full financial picture.