So you've got a Roth IRA. You paid taxes upfront, you're letting it grow, and you're planning to walk away decades later without owing another dollar to the IRS. That's the story, right? It's the appeal of the Roth, and it's also where a lot of investors get tripped up.
Qualified withdrawals from a Roth IRA really are federally tax-free. But the word "qualified" is doing some very heavy lifting here. Miss a detail on any one of several overlapping IRS rules and you can end up owing ordinary income tax, a 10% early withdrawal penalty, an inflated Medicare bill, or some combination of all three. Fidelity has flagged the Roth five-year rule as one of the most misunderstood features in the US retirement code, and the 260-page final regulations the IRS released on inherited accounts in July 2024 did little to simplify things.
Let's talk about five places where that "tax-free" label quietly breaks down, and what you can actually do about each one.
The Earnings Five-Year Rule That Most Savers Don't Actually Track
Here's how this works: contributions to a Roth IRA can be withdrawn at any time, at any age, tax-free and penalty-free. That makes sense—you already paid taxes on that money. Earnings are a different story. To withdraw investment gains tax-free, you need to be at least 59½ and you must have held any Roth IRA for at least five tax years. That five-year clock starts on January 1 of the year you made your first contribution.
That second requirement is what gets people. Imagine a 62-year-old who opens their first Roth in 2026. They're already past the age threshold, but they still have to wait until January 2031 before their earnings become "qualified." If they pull earnings out before then, those gains get taxed as ordinary income. The practical workaround here is that the IRS treats Roth withdrawals in a specific order: contributions first, then conversions, then earnings. So if you only touch the contribution layer, you stay clean.
Every Roth Conversion Starts Its Own Five-Year Clock
Backdoor Roth strategies have gotten really popular among higher earners, and with that popularity has come a lot of confusion about the separate five-year rule that governs conversions. Every individual conversion starts its own holding period, measured from January 1 of the year you do the conversion. If you pull that converted principal out before that clock expires and before you're 59½, a 10% early withdrawal penalty applies to the converted amount—not just the earnings.
Charles Schwab (SCHW) walks through a good example. Say a 55-year-old converts $10,000 in 2026 and withdraws $6,000 two years later. They owe the 10% penalty on the full $6,000 withdrawn because the five-year conversion clock hasn't expired. The penalty hits even though they already paid taxes on that money at the time of conversion. If you're running a multi-year Roth conversion ladder, you need to track each year's conversion separately on IRS Form 8606.
Roth Conversions Can Quietly Inflate Your Medicare Bill
This one surprises almost everyone. A Roth conversion is a taxable event in the year it happens, and the converted amount lands in your modified adjusted gross income (MAGI). Your MAGI drives the Income-Related Monthly Adjustment Amount (IRMAA) surcharge on Medicare Part B and Part D premiums.
For 2026, IRMAA surcharges begin at $109,000 MAGI for single filers and $218,000 for married couples filing jointly, according to CMS bracket tables. IRMAA works as a cliff, not a gradient. So crossing a threshold by a single dollar can cost a couple more than $2,300 a year in added premiums. Because IRMAA uses a two-year lookback, a large conversion in 2026 hits your Medicare premiums in 2028. Retirees planning aggressive conversions in their early 60s often do better by laddering smaller conversions across multiple years rather than front-loading one big one.
Inherited Roth IRAs Come With a 10-Year Countdown
The Roth's "no lifetime required minimum distributions" feature is real for the original account holder, but it evaporates for most heirs. Under the SECURE Act, most non-spouse beneficiaries who inherit a Roth after 2019 must empty the account by December 31 of the tenth year following the original owner's death. Miss that deadline and the remaining balance faces a 25% excise tax, which can drop to 10% if corrected promptly.
The IRS finalized these regulations in July 2024, and the grace period that waived annual RMDs during the 10-year window expired at the end of 2024. Distributions from a qualifying inherited Roth generally stay tax-free, but being forced to liquidate within 10 years strips away much of the compounding runway that made the account so valuable in the first place. Surviving spouses have more flexibility—they can usually roll the inherited account into their own Roth, sidestepping the 10-year rule entirely.
State Tax Quirks Can Still Catch You
Federal law sets the headline tax treatment, but state rules don't always line up. A majority of states follow the federal treatment on Roth IRAs, but a handful have historically diverged on conversions, distributions, or the mechanics of when income is recognized. If you convert in one state and plan to withdraw after moving to another, you should check the rules in both places before pulling the trigger. The same logic applies if you're a retiree considering a move to a state that taxes retirement income differently than where you live now. A decision that looked tax-neutral at the federal level can still generate a state tax bill.
The Bottom Line for Retirees and Savers
Roth IRAs still deserve their place in most long-term plans. The tax drag of a traditional account during retirement, combined with rising life expectancies and uncertain future tax rates, keeps the Roth compelling. What changes once you understand the rules is the strategy around it. Laddering conversions, tracking each five-year clock separately, and projecting your MAGI two years forward before doing a large conversion—these are the things that separate a genuinely tax-free retirement from an unwelcome surprise courtesy of the IRS or Medicare. Read the fine print, and the Roth holds up. Skip it, and "tax-free" becomes a much softer promise.
.jpeg)
