What is the Mega Backdoor Roth? 

For high-income earners seeking ways to supercharge their retirement savings, the Mega Backdoor Roth 401(k) is a game-changing strategy. This advanced savings technique allows individuals to contribute significantly more than the standard 401(k) contribution limits, helping them build a robust retirement portfolio while potentially avoiding future tax liabilities. 

Understanding the Mega Backdoor Roth 

The Mega Backdoor Roth is a strategy that leverages after-tax contributions to a 401(k) plan and then converts those contributions into a Roth 401(k). This conversion allows the money to grow tax-free, and because Roth 401(k)s are not subject to required minimum distributions (RMDs) like traditional 401(k)s, it’s an attractive option for those looking to maximize tax-free income in retirement. 

Here's how it works: 

  1. After-Tax Contributions: Participants in a 401(k) plan can contribute beyond the regular $23,000 limit ($30,000 for those 50 and older in 2024). If the plan allows, individuals can make after-tax contributions up to the overall IRS limit of $69,000, including employer matches ($76,500 limit for those 50 and older in 2024). 

  1. Roth Conversion: The next step is to convert those after-tax contributions into a Roth 401(k), ensuring that the future growth of these funds remains tax-free. 

  1. Tax-Free Growth: Once in a Roth account, your contributions and their earnings grow tax-free, which can lead to significant savings over time—especially for individuals in higher tax brackets. 

Who Benefits from a Mega Backdoor Roth? 

The Mega Backdoor Roth is primarily beneficial for high-income earners who: 

  • Max out traditional 401(k) contributions and want to contribute more towards retirement. 

  • Are ineligible to contribute directly to a Roth IRA due to income limits. 

  • Desire more tax-free retirement income. 

For the ultra-wealthy, where high contribution limits to tax-advantaged accounts can seem like mere drops in the bucket, the Mega Backdoor Roth is a powerful tool to maximize wealth preservation. Take, for example, a company like Google. Google executives, who often receive significant bonuses and stock options, can maximize this strategy to supercharge their tax-free retirement savings. Google employees in senior positions are often capped out on traditional 401(k) contributions, making after-tax contributions an appealing option for additional tax-sheltered growth. 

Similarly, professionals at Microsoft can leverage this strategy to accumulate additional wealth. With Microsoft's compensation structure, which often includes stock grants and generous matching programs, high earners can benefit from contributing up to the total IRS limit of $69,000 (or even $76,500 for those 50 or older). This extra amount, when converted into a Roth account, shields it from future taxes, which can significantly amplify its value over time. 

Real-World Example: 

Imagine you're a 50-year-old senior executive at Amazon, already maxing out your pre-tax 401(k) contributions at $23,000 annually, with an employer match of $10,000. That leaves up to $36,000 available for after-tax contributions in 2024. By converting those after-tax contributions into a Roth account, you're setting yourself up for future tax-free withdrawals on both your contributions and the investment growth. 

The potential here is huge. With tax-free growth compounding over the years, high-income earners can create a substantial nest egg. Over 10 years, with consistent $36,000 after-tax contributions and a 7% growth rate, your Mega Backdoor Roth IRA could easily grow to over $600,000—completely tax-free. 

Considerations and Risks 

While the Mega Backdoor Roth is an excellent strategy, it's essential to ensure your 401(k) plan allows after-tax contributions and in-service withdrawals (the ability to withdraw funds while still employed, this is what allows it to be converted to Roth). Additionally, managing cash flow when so much of your salary is going into your retirement plan can be complex. That's why working with a financial planner who specializes in tax-efficient retirement strategies is crucial. 

At Fortis Financial Group, we understand that navigating the complex landscape of retirement strategies can be challenging. Our team can help you evaluate whether the Mega Backdoor Roth is the right strategy for you and assist in maximizing your tax-free retirement savings potential. We’ve helped executives at companies like Google, Amazon, and Microsoft preserve their wealth for retirement through strategies like this. 

In conclusion, if you are a high-income earner looking for ways to build tax-free retirement wealth, the Mega Backdoor Roth IRA could be the solution you need. Let us help you navigate this opportunity and ensure that every dollar works toward your future financial goals. 

Mike Boroughs, CFA, CPA - President

Mike is the President and Managing Partner of the Fortis Financial Group and oversees all aspects of investments for the firm. He is also integrally involved in the financial planning and wealth management for key clients of the firm and helps coach the team to deliver excellent client service.

https://fortis.capital/bios/mike-boroughs
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