Looking for ways to maximize your retirement savings beyond traditional limits and supercharge your path to becoming a 401(k) millionaire? Consider combining your 401(k) strategy with a Backdoor Roth IRA conversion. This powerful approach allows you to grow your nest egg tax-free, even if you’re a high-income earner. You can optimize your retirement portfolio by leveraging growth and tax efficiency strategies. Let’s explore utilising this method effectively and understand the necessary steps, including filing Form 8606.
Table of Contents

401 (k) vs. Roth IRA Compatibility
Let’s compare these two popular retirement savings options to better understand how a Backdoor Roth IRA can work alongside your 401(k). The table below highlights their key features and explains how combining these accounts can create a more robust and tax-efficient retirement plan.
| Feature | 401(k) | Roth IRA | Compatibility Benefit |
|---|---|---|---|
| Contribution Limits | $23,000 (if 50 or older in 2024) | $6,500 ($7,500 if 50 or older in 2024) | Maximize savings by contributing to both accounts |
| Tax Treatment | Contributions are pre-tax; withdrawals are taxed | Contributions are after-tax; withdrawals are tax-free | Tax diversification for withdrawals in retirement |
| Income Limits | No income limits for contributions | Income limits apply for direct contributions | Use a Backdoor Roth IRA if income exceeds limits |
| Withdrawal Rules | Penalties for early withdrawals before age 59½ | Qualified withdrawals after age 59½ are tax-free | Flexibility in tax-free withdrawals after retirement |
| Employer Match | Often includes an employer match | No employer match | Maximize employer contributions in 401(k), grow tax-free with Roth IRA |
| Required Minimum Distributions (RMDs) | Yes, starting at age 73 (as of 2024) | No RMDs for original account holder | Reduce RMD impact with Roth IRA funds |
Rolling Over to a Backdoor Roth IRA
You can also roll over existing retirement accounts, such as 401(k)s or other IRAs, into a Roth IRA through Fidelity. Here’s how the rollover works:
- Contact your 401(k) provider to initiate the rollover directly to a Roth IRA.
- Use Fidelity’s tools to transfer funds into your Roth IRA, a workplace retirement plan.
- Consider tax implications, as any pre-tax contributions will be taxed upon conversion, so it’s wise to consult IRS Form 8606.
Avoid penalties by consulting with Fidelity’s support or a tax professional before proceeding with the rollover.
What is a Backdoor Roth IRA?
A “Backdoor Roth IRA” is a strategy that allows individuals who exceed the Roth IRA income limits to contribute indirectly by converting a traditional IRA into a Roth IRA. Here’s how it works:
- Contribute to a traditional IRA: You can make a non-deductible contribution to your traditional IRA.
- Convert the traditional IRA to a Roth IRA: This step involves moving the funds from your traditional IRA into a Roth IRA account.
The Backdoor Roth IRA strategy is a game-changer for many retirement savers, especially those who exceed the income limits for direct Roth IRA contributions. This method enables you to enjoy the benefits of a Roth IRA, such as tax-free growth and tax-free withdrawals in retirement, without being hindered by income restrictions.
Fidelity Investments, a leader in the financial services industry, provides a seamless process for executing this strategy. With their user-friendly platform, diverse investment options, and exceptional customer support, Fidelity is ideal for managing your Backdoor Roth IRA conversion and enhancing your overall retirement plan.
Why Choose Fidelity To Convert To A Roth IRA Conversion?
Regarding retirement accounts, Fidelity Investments stands out for its user-friendly platform, exceptional customer support, and wide range of investment options. Here’s why Fidelity should be your go-to for a Backdoor Roth IRA:
- Tax-free retirement income: With Fidelity’s Backdoor Roth IRA, you’ll enjoy tax-free investment growth.
- Potential for higher returns: You’ll have access to various investments, including mutual funds, ETFs, and stocks, to help you grow your savings faster in your Fidelity account.
- Diverse investment options: Fidelity offers a range of funds tailored to your retirement goals.
- Ease of use in managing your Roth conversion: Fidelity provides online tools that make the conversion process straightforward and accessible to even beginner investors, ensuring they understand the tax consequences.
Step-by-Step Guide: How to Execute a Backdoor Roth IRA Through Fidelity

Executing a Backdoor Roth IRA with Fidelity is a strategic way for high-income earners to take advantage of tax-free growth in retirement savings. This guide will walk you through the process step by step.
Prerequisites:
- No Existing Tax-Deferred IRA Funds: Ensure you do not have any tax-deferred money in existing IRAs (Traditional, SEP, or SIMPLE). If you do, consider strategies to move those funds into a 401(k) to avoid the pro-rata rule, which could lead to unintended tax consequences.
- Establish Two Accounts: Set up both a Traditional IRA and a Roth IRA with Fidelity. These accounts will be used annually for the Backdoor Roth conversion, so keep them open for future contributions.
- Contribution Limits: For 2025, the contribution limit is $7,000 per individual under 50, and $8,000 for those 50 or older. Ensure you have the funds available to make the full contribution.
Step 1: Open a Traditional IRA with Fidelity
- Visit Fidelity’s website and navigate to the “Open an Account” section.
- Select “Traditional IRA” and follow the prompts to complete the account setup.
Step 2: Fund Your Traditional IRA
- Link your bank account to your Fidelity Traditional IRA.
- Initiate a one-time contribution up to the annual limit ($7,000 or $8,000, depending on your age).
- Wait for the funds to settle, which typically takes 1-3 business days.
Step 3: Open a Roth IRA with Fidelity
If you don’t already have a Roth IRA with Fidelity, open one by selecting “Roth IRA” in the “Open an Account” section.
Step 4: Convert Traditional IRA to Roth IRA
- Once your contribution has settled in the Traditional IRA, navigate to the “Transfer” section on Fidelity’s website.
- Choose your Traditional IRA as the account to transfer from and your Roth IRA as the account to transfer to.
- Transfer the entire balance. When prompted about tax withholding, opt not to have taxes withheld, as the contribution is post-tax.
Step 5: Invest Within Your Roth IRA
After the conversion, invest the funds within your Roth IRA according to your investment strategy.
Important Considerations:
- Pro-Rata Rule: Be aware of the pro-rata rule, which requires you to consider all your traditional, SEP, and SIMPLE IRAs when determining the taxable portion of a conversion.
- Tax Reporting: Fidelity will provide Form 1099-R for the distribution from the Traditional IRA and Form 5498 for the contribution to the Roth IRA. You’ll need to file IRS Form 8606 to report the non-deductible contribution and the conversion.
- Consult a Professional: Given the complexities involved, it’s advisable to consult with a tax advisor to ensure compliance with IRS rules and to understand the tax implications fully.
By following these steps, you can effectively execute a Backdoor Roth IRA with Fidelity, allowing your retirement savings to grow tax-free.
Best Fidelity Funds for Your Backdoor Roth IRA
Choosing the right funds is essential to maximizing the growth of your Roth IRA. Fidelity offers a selection of low-fee funds that are perfect for long-term investors:
- Fidelity Total Market Index Fund (FSKAX): Offers broad market exposure across multiple sectors.
- Fidelity ZERO Total Market Index Fund (FZROX): This can be a great option for your Roth account, particularly for those 50 or older.: A low-cost option with no expense ratio.
- Fidelity U.S. Bond Index Fund (FXNAX): Ideal for balancing risk with more conservative bond exposure.
When selecting funds, consider your personal risk tolerance, diversification strategy, and retirement goals. A well-diversified portfolio reduces risk while maximizing growth potential.
Fidelity Roth IRA Income Limits 2025
For 2025, Roth IRA contribution eligibility is based on your Modified Adjusted Gross Income (MAGI). To make a full Roth IRA contribution, single filers must have a MAGI of less than $150,000, while those married filing jointly must have a MAGI of less than $236,000. You may be eligible for a partial contribution if your income falls within certain ranges above these limits. Exceeding these thresholds makes you ineligible for a Roth IRA, but you can still contribute to a traditional IRA.
| Filing Status | Modified Adjusted Gross Income (MAGI) | Contribution Eligibility |
|---|---|---|
| Single filers | < $146,000 | Full contribution |
| Single filers | ≥ $146,000 but < $161,000 | Partial contribution |
| Single filers | ≥ $161,000 | Not eligible |
| Married filing jointly | < $230,000 | Full contribution |
| Married filing jointly | ≥ $230,000 but < $240,000 | Partial contribution |
| Married filing jointly | ≥ $240,000 | Not eligible |
Roth IRA Contribution Limits
The IRS sets the maximum amount you can contribute to a Roth IRA annually. You can contribute the full amount allowed or up to 100% of your income, whichever is lower. You have until the following year’s tax deadline to contribute to your Roth IRA.

Example Scenario: Understanding the Tax Implications of a Backdoor Roth IRA Conversion
Imagine you have two Traditional IRA accounts:
- Traditional IRA 1: Contains $50,000 in pre-tax contributions.
- Traditional IRA 2: You contribute $6,500 in after-tax (non-deductible) contributions for 2024.
You decide to convert the $6,500 in Traditional IRA 2 to a Roth IRA through a Backdoor Roth conversion. However, because you also have pre-tax money in Traditional IRA 1, the IRS requires you to use the pro-rata rule to determine the taxable portion of your conversion.
How the Pro-Rata Rule Works:
The IRS views all your Traditional IRAs as one combined account, not separately. The pro-rata rule requires you to calculate the taxable amount based on the ratio of pre-tax contributions to the total balance of all your Traditional IRAs.
Step-by-Step Calculation:
- Total Value of All Traditional IRAs:
- Traditional IRA 1: $50,000 (pre-tax)
- Traditional IRA 2: $6,500 (after-tax)
- Total Combined Value: $50,000 + $6,500 = $56,500
- Ratio of After-Tax Contributions:
- After-Tax Contributions: $6,500
- Total Combined Value: $56,500
- After-Tax Ratio: $6,500 / $56,500 ≈ 11.5%
- Taxable Portion of the Conversion:
- Since 11.5% of your total IRA funds are after-tax contributions, only 11.5% of the $6,500 conversion to the Roth IRA will be tax-free.
- Tax-Free Amount: $6,500 x 11.5% ≈ $748
- Taxable Amount: $6,500 – $748 = $5,752
Tax Implications:
When you convert the $6,500 from your Traditional IRA to a Roth IRA, $5,752 will be considered a taxable event. You must pay income taxes on this amount at your current tax rate. Only $748 will be tax-free because it represents the after-tax contributions.
Key Takeaway: To minimize your tax liability, consider the proportion of pre-tax and post-tax money in all your Traditional IRAs before initiating a Backdoor Roth conversion. Fidelity provides resources and links to IRS guidelines to help you manage the process smoothly and avoid unexpected tax penalties.
Fidelity Backdoor Roth IRA vs. Other Brokerages
Here’s how Fidelity stacks up against other leading brokerages for Backdoor Roth IRAs:
| Brokerage | Ease of Process | Fees | Investment Options | Customer Service |
|---|---|---|---|---|
| Fidelity | Excellent | Low | Broad range | Highly rated Roth account |
| Vanguard | Good | Moderate | Limited fund selection | Moderate |
| Charles Schwab | Excellent | Low | Broad range | Good |
Overall, Fidelity’s low fees, ease of use, and strong customer service make it a great choice for Backdoor Roth IRA conversions.
Success Stories: Real-Life Testimonials from Fidelity Customers
Many investors have successfully used Fidelity’s Backdoor Roth IRA strategy to maximize their retirement savings. Here are a few testimonials:
“I was able to contribute to my Roth IRA despite earning above the income limits thanks to Fidelity’s easy-to-use platform.” — John D.
“The conversion process was seamless, and I’ve seen great returns on my investments through Fidelity’s mutual funds.” — Sarah P.
These stories highlight the benefits of using Fidelity’s platform to grow your retirement savings.

Fidelity Customer Service & Support
If you need help setting up or managing your Backdoor Roth IRA, Fidelity offers several support options:
- Phone support: Available 24/7 for assistance with IRA accounts.
- Online chat: Convenient chat feature for quick questions about your Roth account.
- Local branches: Visit a Fidelity branch for in-person support.
Fidelity’s retirement support pages also offer resources, articles, and FAQs to help guide you through the process.
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Common FAQs About the Backdoor Roth IRA Fidelity Conversion
How Does Backdoor Roth IRA Work?
The process involves making a non-deductible contribution to a Traditional IRA and then converting those funds to a Roth IRA. This method takes advantage of the fact that conversions have no income limits, allowing investors to maximize their retirement savings.
Why should I consider a Backdoor Roth IRA conversion with Fidelity?
Executing a Backdoor Roth IRA conversion through Fidelity can simplify the process due to their user-friendly platform and resources. Fidelity offers a variety of investment options and educational materials, such as Fidelity Viewpoints, that can help you understand the intricacies of Roth conversions. Additionally, Fidelity has competitive fees and a robust customer service team to assist investors in navigating the backdoor Roth IRA strategy.
Is backdoor Roth IRA still legal?
Yes, as of 2024, the Backdoor Roth IRA is still legal. Despite discussions in Congress about closing this loophole, no laws have been passed to eliminate or restrict it. However, staying updated on tax law changes is always a good idea.
What is the downside to backdoor Roth?
The main downside of a Backdoor Roth IRA is the potential tax liability. If you have other traditional IRAs with pre-tax contributions, the IRS pro-rata rule may apply, which could result in taxes owed on the conversion, so consider IRS Form 8606 for reporting. Additionally, the complexity of the process may require tax planning or professional help.
What is the 5-year rule for backdoor Roth IRAs?
The 5-year rule states that you must wait five years from the conversion date before withdrawing any converted funds from the Roth IRA without penalty. This rule applies even if you’re over 59½. If you withdraw the funds before the 5 years is up, you could be subject to a 10% penalty, although earnings can still be withdrawn tax-free if you meet the requirements.
How do I calculate my Modified Adjusted Gross Income (MAGI) for Roth IRA eligibility?
Start with your Adjusted Gross Income (AGI) to calculate your MAGI. Then, add specific items like student loan interest deductions, foreign earned income and housing exclusions, and foreign housing deductions. Your MAGI determines your eligibility to contribute to a Roth IRA. Fidelity’s IRA contribution calculator can help you determine your maximum Roth IRA contribution based on your MAGI.
Conclusion: Is a Backdoor Roth IRA Through Fidelity Right for You?
The Backdoor Roth IRA conversion through Fidelity offers a powerful way to maximize your retirement savings, especially if you’re a high-income earner. By leveraging Fidelity’s user-friendly platform, diverse investment options, and excellent customer support, you can take control of your financial future and enjoy tax-free growth on your investments.
Don’t let income limits hold you back from the benefits of a Roth IRA. Take action today by exploring Fidelity’s tools and resources to start your Backdoor Roth IRA conversion. Your future self will thank you for the tax-free income in retirement!




