Backdoor Roth IRA and Roth Conversions: What High Earners Need to Know
Tax season isn’t just about what you owe. It’s a planning window — and for high earners, the opportunity to build tax-free retirement wealth closes on April 15.
It’s tax season, and most people are focused on a single number: what do I owe, or what am I getting back? But if you’re a high-income earner, there’s a planning window open right now that most people completely miss. It involves a Roth account, and the deadline is April 15.
Whether you’re filing your return, reviewing last year’s numbers, or simply trying to get ahead for next year, this is the moment to ask two specific questions that can compound into significant tax-free wealth over time.
The Backdoor Roth IRA: How High Earners Can Still Contribute
If your income is above the Roth IRA contribution limits — roughly $165,000 for single filers or $246,000 for married filing jointly in 2025 — you’re phased out of contributing to a Roth IRA directly. Most high earners know this and assume Roth accounts simply aren’t available to them.
But there’s a perfectly legal workaround called the Backdoor Roth IRA, and if you haven’t completed it for the 2025 tax year, you still have until April 15 to do it.
How the Backdoor Roth works step by step
The strategy is straightforward. First, you contribute to a traditional IRA — up to $7,000 for 2025, or $8,000 if you’re age 50 or older. Then, you immediately convert that contribution into a Roth IRA. That’s it. The money now sits in a Roth account, where it grows completely tax-free, even though your income was technically “too high” for a direct contribution.
Watch out for the pro-rata rule. If you have existing pre-tax money in any traditional IRA accounts, the IRS won’t let you selectively convert just the after-tax dollars. The pro-rata rule requires you to treat the conversion proportionally across all your IRA balances. This can create an unexpected tax bill and complicate the Backdoor strategy. If this applies to you, talk with a financial planner before executing the conversion.
Your Tax Return Is a Planning Document, Not Just a Receipt
Here’s where most people — especially those in their 40s through 60s — leave real money on the table. When your tax return comes back, the instinct is to glance at the refund (or balance due), file it away, and move on. That’s a missed opportunity.
Instead, look at two specific numbers: your marginal tax rate and your taxable income. The gap between what you earned and the top of your current tax bracket represents your Roth conversion opportunity.
A practical example of bracket-based Roth conversion
Say you’re in the 24% federal tax bracket and you have $40,000 of room before you’d cross into the 32% bracket. You could convert $40,000 from an old 401(k) or traditional IRA into a Roth IRA, pay tax on it now at 24%, and avoid potentially paying a higher rate on that money in the future.
This kind of tax bracket management isn’t something most people do instinctively. But done consistently, year after year, it’s one of the most powerful wealth-building tools available to high earners approaching retirement.
Why Roth Conversions Matter So Much Before Retirement
Most high earners spend decades building up pre-tax retirement accounts — 401(k)s, traditional IRAs — and feel great about the growing balance. But there’s a catch that many people don’t appreciate until it’s too late: the IRS has a claim on every dollar in those accounts.
The required minimum distribution problem
At age 73, required minimum distributions (RMDs) kick in. The IRS forces you to withdraw money from pre-tax accounts whether you need it or not, and those withdrawals are taxed as ordinary income. For people with large pre-tax balances, this creates a cascade of tax consequences.
RMDs can push you into a higher tax bracket during retirement, exactly when you expected your rate to go down. They can trigger increased Medicare premiums through IRMAA surcharges. And they can make a larger portion of your Social Security benefits taxable — adding insult to injury.
How Roth conversions defuse the tax time bomb
Strategic Roth conversions during your peak earning years — done thoughtfully and with attention to bracket management — can defuse this tax time bomb before it goes off. The logic is simple: pay tax now at a known rate, rather than later at an unknown one. Every dollar you convert to a Roth is a dollar that will never be subject to RMDs and will never generate taxable income in retirement.
YOUR ONE THING FOR MARCH
When you get your 2025 tax return, ask yourself two questions:
- Did I complete my Backdoor Roth for 2025? If not, do I still have time before April 15?
- What does my marginal tax rate look like? Is there a Roth conversion opportunity I should act on for 2026?
Simple questions. But asked consistently, year after year, they compound into serious tax-free wealth.
Frequently Asked Questions
What is a Backdoor Roth IRA?
A Backdoor Roth IRA is a strategy that allows high earners who exceed Roth IRA income limits to still get money into a Roth account. You contribute to a traditional IRA (up to $7,000 in 2025, or $8,000 if you’re 50 or older) and then immediately convert that contribution to a Roth IRA. The result is tax-free growth, even though your income was above the direct contribution threshold.
What are the Roth IRA income limits for 2025?
For 2025, you are phased out of contributing directly to a Roth IRA if your modified adjusted gross income is above approximately $165,000 for single filers or $246,000 for married filing jointly. Earners above these levels can still use the Backdoor Roth strategy.
When is the deadline for a Backdoor Roth IRA contribution?
The deadline for a 2025 Backdoor Roth contribution is April 15, 2026 — the same as your federal tax return filing deadline. The traditional IRA contribution must be made by this date, and then you convert it to a Roth.
What is the pro-rata rule?
The pro-rata rule applies when you have both pre-tax and after-tax money across your traditional IRA accounts. When you convert any portion to a Roth, the IRS treats the conversion as coming proportionally from both types of funds. This can result in an unexpected tax liability if you have significant pre-tax IRA balances.
What is a Roth conversion and how does it save on taxes?
A Roth conversion moves money from a pre-tax retirement account (traditional IRA, old 401(k)) into a Roth IRA. You pay income tax on the converted amount now, but all future growth and withdrawals are completely tax-free. This is especially valuable for reducing required minimum distributions in retirement.
When do required minimum distributions start?
Required minimum distributions (RMDs) from pre-tax retirement accounts begin at age 73. These mandatory withdrawals are taxed as ordinary income and can push retirees into higher brackets, increase Medicare premiums, and make Social Security benefits more taxable. Roth accounts are not subject to RMDs during the account holder’s lifetime.
Can I do a Roth conversion if I’m already retired?
Yes. Roth conversions can be done at any age, and many retirees benefit from converting in the years between retirement and age 73, when their income — and therefore their tax rate — may be temporarily lower. This creates a window for tax-efficient conversions before RMDs begin.
How much should I convert to a Roth each year?
The ideal conversion amount depends on your current tax bracket, the gap between your taxable income and the top of your bracket, your projected future tax rates, and your overall retirement plan. Many financial planners recommend converting up to the top of your current bracket each year to avoid jumping into a higher one.
Questions About Your Situation?
This is exactly the kind of planning conversation we have at Pleasant Street. If anything here raised a question about your Backdoor Roth, Roth conversion strategy, or retirement tax planning, reach out to schedule a conversation.
About the Author
Taylor Nissi CFP® is the founder of Pleasant Street Wealth Advisors, a Multi-Family Office serving entrepreneurs, business owners and high-net-worth families globally.
ABOUT TAYLOR NISSI: I’m a CFP® and CEPA who helps business owners running 7- and 8-figure companies align their personal wealth strategy with their business success. At Pleasant Street Wealth Advisors, we help entrepreneurs align their personal wealth strategy with the success they’re building in their business — so nothing falls through the cracks.
Entrepreneurs and business owners.
Serves a national or global client base.
Based in Westchester County NY
High Net Worth individuals