Should you convert your IRA to a Roth? It depends on a lot of factors

As Congress continues to debate future tax policy and retirees worry about rising taxes in retirement, more Americans are considering converting traditional individual retirement accounts into Roth IRAs.

The strategy, known as a Roth conversion, allows savers to move money from a tax-deferred retirement account into one that offers tax-free withdrawals later in life. But while the appeal of tax-free income is strong, advisers say the decision is far from simple — especially for retirees already living on fixed incomes.

People hear “tax-free forever” and immediately think it’s a no-brainer, but the conversion itself can create a major tax event.

How a Roth conversion works

Money contributed to traditional IRAs is generally tax-deductible, and withdrawals are taxed as ordinary income in retirement. Roth IRAs work in reverse: contributions are made with after-tax dollars, but future withdrawals are tax-free if certain rules are met.

When retirees convert money from a traditional IRA into a Roth IRA, the amount converted is treated as taxable income in the year of the conversion.

For example, a retiree who converts $100,000 from a traditional IRA to a Roth could add that entire amount to taxable income for the year. That tax bill can be substantial, potentially pushing retirees into higher tax brackets and affecting other financial considerations.

Why retirees consider conversions

Despite the upfront tax hit, Roth conversions can provide several long-term advantages.

One of the biggest is eliminating required minimum distributions, or RMDs. Traditional IRA owners generally must begin taking taxable withdrawals beginning at age 73. Roth IRAs are not subject to RMDs during the original owner’s lifetime.

That can give retirees more flexibility in managing taxable income. Roth IRAs can also help retirees leave tax-free assets to heirs, making them attractive for estate planning purposes.

Another potential benefit comes during market downturns. Converting assets when account balances are temporarily depressed may reduce the tax cost of the conversion, while allowing future recovery to occur inside the Roth account tax-free.

The hidden downsides

But advisors caution that conversions can create unintended consequences.

A large conversion can increase Medicare Part B and Part D premiums through income-related monthly adjustment amounts, known as IRMAA surcharges. Those higher premiums may last for a year or more after the conversion.

Conversions can also increase taxation of Social Security benefits and affect eligibility for certain tax credits or deductions.

Paying the conversion tax from IRA funds rather than outside savings can also undermine the benefits, since the withdrawal reduces the amount left to grow tax-free.

Timing matters

Financial planners often recommend spreading conversions over several years instead of making one large move all at once.

That approach may allow retirees to “fill up” lower tax brackets gradually while avoiding major jumps in taxable income.

The years between retirement and the start of Social Security or RMDs are often viewed as an ideal window for conversions because income may temporarily be lower. Still, the right strategy depends heavily on individual circumstances, including future income expectations, estate goals, health, and spending needs.

Not the right move for everyone

For some retirees, a Roth conversion may never pay off. Those who expect to remain in lower tax brackets throughout retirement may gain little from accelerating taxes now. Older retirees with shorter time horizons may also struggle to recover the upfront tax costs through future tax-free growth.

In the end, there is no universal answer. The consensus among financial advisors seems to be that the best candidates are people who can afford the taxes, have time for the account to grow, and expect higher taxes later.

Retirees considering this move should talk it over with a trusted and objective financial advisor.