What’s a backdoor Roth IRA and how does it work?

If your income is too high to contribute directly to a Roth IRA, you may have heard of something called a backdoor Roth IRA. It’s not a secret trick or illegal workaround. It’s an IRS-sanctioned strategy that helps high-income earners take advantage of the tax-free growth that comes with a Roth account.

But how exactly does it work? And is it the right move for your financial plan?

In this article, we’ll break it all down in simple terms so you can understand how this strategy works, what to watch out for, and how it could benefit your taxes, Social Security, lifestyle, and even your health insurance options in retirement.

What is a backdoor Roth IRA?

A backdoor Roth IRA is a strategy that allows individuals who exceed Roth IRA income limits to fund a Roth by contributing to a traditional IRA and then converting it.

Here’s a quick overview of how it works:

• You make a non-deductible contribution to a traditional IRA
  
• Then, you convert that money to a Roth IRA
  
• If done correctly, the tax consequences can be minimal
  

This method is commonly used by high-income earners who are locked out of direct Roth IRA contributions due to IRS income thresholds.

Why would someone want a Roth IRA in the first place?

A Roth IRA allows for tax-free growth and tax-free withdrawals in retirement, which is a huge benefit. While traditional IRAs give you a tax deduction upfront, Roths let your money grow without future tax bills.

That makes Roth IRAs especially appealing if you:

• Expect to be in a higher tax bracket in retirement
  
• Want to reduce taxable income in retirement
  
• Would like to minimize required minimum distributions (RMDs)
  
• Plan to leave tax-free assets to heirs
  

So if you earn too much to qualify for a direct Roth contribution, a backdoor Roth IRA can give you access to these same benefits.

How income limits block direct Roth contributions

The IRS sets income limits each year that determine eligibility for direct Roth contributions. For 2025, if your modified adjusted gross income (MAGI) is above these limits, you can’t contribute directly:

• Single filers: phased out starting at $146,000
  
• Married filing jointly: phased out starting at $230,000
  

But those limits do not apply to Roth conversions. That’s why the backdoor strategy works.

Step-by-step: How to do a backdoor Roth IRA

Here’s how the process typically works:

1. Open a traditional IRA if you don’t already have one
   
2. Contribute up to $7,000 ($8,000 if over 50) for 2025
   
3. Do not deduct the contribution on your tax return
   
4. Wait a short time (often a few days)
   
5. Convert the full amount to a Roth IRA
   
6. Pay taxes only on any gains earned between the contribution and conversion
   

This process might sound simple, but it can get tricky if you already have pre-tax money in other IRAs. This is where the pro-rata rule comes in, and it’s one of the reasons it’s critical to work with a qualified advisor.

Understanding the pro-rata rule

The pro-rata rule requires that your conversion be taxed based on the proportion of pre-tax vs. after-tax money in all your IRAs. So if you already have a large traditional IRA with deductible contributions, your conversion could trigger more taxes than expected.

Example:

• You contribute $7,000 to a new traditional IRA (after-tax)
  
• But you already have $93,000 in another IRA (pre-tax)
  
• Your conversion will be 7 percent tax-free and 93 percent taxable
  

This is one of the biggest traps people fall into when trying to do a backdoor Roth on their own. Our team at Guerra Wealth Advisors can help you avoid costly surprises and make sure the process fits into your overall financial strategy.

Tax advantages of a backdoor Roth IRA

• Tax-free growth: All future gains and qualified withdrawals are tax-free
  
• No RMDs: Roth IRAs are not subject to required minimum distributions
  
• Potentially lower lifetime taxes: Especially if you believe tax rates will rise
  

If you’re currently in a high tax bracket and don’t need deductions now, a backdoor Roth helps lock in today’s tax rates on a smaller amount of income and enjoy tax-free withdrawals later.

Social Security and tax coordination

Another benefit of Roth IRAs is how they affect Social Security taxation. Withdrawals from Roth IRAs do not count toward provisional income, which determines how much of your Social Security is taxable.

This means:

• Roth IRA income may keep more of your Social Security benefits tax-free
  
• Better coordination between income sources during retirement
  
• More control over your tax bracket in retirement
  

This is a key consideration in retirement income planning, and something we help clients model out at Guerra Wealth Advisors.

Lifestyle and health insurance benefits

Roth IRA withdrawals are not included in your adjusted gross income, which has other implications for your lifestyle and healthcare planning:

• May help you qualify for ACA health insurance subsidies before Medicare
  
• Could reduce Medicare premium surcharges in retirement
  
• Gives you flexibility in managing income when markets are down
  

Because you don’t have to take RMDs, Roth accounts also allow you to delay withdrawals or use the funds strategically for large expenses, travel, or legacy planning.

When a backdoor Roth IRA may not make sense

While this is a powerful strategy, it’s not right for everyone. It might not be a good fit if:

• You already have large pre-tax IRAs, making conversion too costly
  
• You need the deduction from a traditional IRA now
  
• You’re close to retirement and want to avoid short-term tax hits
  

Working with a financial advisor helps you weigh the trade-offs and time the strategy correctly. At Guerra Wealth Advisors, we tailor strategies to your unique retirement goals, income picture, and tax situation.

Is the backdoor Roth IRA going away?

There have been proposals to eliminate the backdoor Roth strategy, but as of now, it is still perfectly legal and available. However, tax laws can change, which is another reason to speak with an advisor sooner rather than later.

Should you use a backdoor Roth IRA?

If you’re a high-income earner looking for tax-free retirement income, better Social Security outcomes, and more flexibility with your healthcare and lifestyle planning, this strategy is worth exploring.

It’s not a one-size-fits-all move, but for many, it’s a smart way to work around IRS income limits and take full advantage of Roth IRA benefits.

Let us help you get it right

At Guerra Wealth, we specialize in helping pre-retirees and high-income earners optimize their retirement strategies, including complex moves like backdoor Roth IRAs. We can help you:

• Navigate the pro-rata rule
  
• Minimize taxes
  
• Coordinate with your Social Security and health insurance planning
  
• Build a retirement plan you feel confident in
  

Book a complimentary consultation to see if a backdoor Roth IRA fits into your retirement game plan.