A A A

How to Become a 401(k) Millionaire

By ShareBuilder 401k
Published: March 17, 2025

Becoming a millionaire might seem like a far-fetched dream, but with the right financial strategies, it is entirely possible for most Americans. So how do you go from saving a little bit each month to joining the ranks of 401(k) millionaires? The answer lies in taking advantage of retirement savings plans and making strategic financial decisions over time. This blog will explore the key questions around becoming a 401(k) millionaire and how you can achieve financial freedom and wealth through consistent, steady planning.

How can you become a 401(k) millionaire?

To become a 401(k) millionaire, start by contributing consistently to your retirement savings plan. Contribute 10-15% of your income annually, take advantage of employer matches, and let compound interest work for you over time. Investing consistently over a 30-40 year career can lead you to reach millionaire status by the time you retire.

It’s not about winning the lottery or receiving a big windfall; it’s a process of steady, disciplined saving and investment. And the best part? It’s a process that’s open to most working Americans.

An Example on the Magical Power of Compounding

Imagine Anne contributes $10,000 per year to her 401(k), which is approximately $833 per month. Her employer matches $4,000 annually, equating to $333 per month. Assuming an 8% return on her investments each year, Anne will have accumulated nearly $700,000 in 20 years from a total contribution of $280,000 ($200,000 from her and $80,000 from her employer). That's well more than double the amount she put in. The benefits of compounding grow exponentially over more extended periods. If Anne continues her contributions for 40 years, she will accumulate over $4,000,000 from a total contribution of $560,000 ($400,000 from her and $160,000 from her employer). This substantial nest egg allows Anne to retire comfortably and pursue her dreams and passions. The key takeaway? Contribute regularly to your 401(k) and harness the power of compounding.

See example below:
Compounding Chart

Why is contributing to a 401(k) plan crucial for building wealth?

Contributing to a 401(k) is crucial because it's one of the most effective ways to build wealth over time. Around 90% of millionaires contribute to their retirement accounts, and doing so allows you to benefit from employer contributions, tax advantages, and compound growth over time.

A 401(k) plan is designed for long-term savings, and as your contributions grow and earn returns, your account balance can increase substantially over several decades. Making regular contributions and allowing the funds to grow uninterrupted is key to long-term wealth accumulation.

What other factors contribute to becoming a millionaire?

Besides contributing to a 401(k) plan, purchasing a home is another common strategy for building wealth. Around 87% of millionaires have bought a home, which can appreciate in value over time and contribute to their overall wealth.

Homeownership not only provides a stable asset but also acts as a forced savings plan, as you build equity with each mortgage payment. Combining the growth of your 401(k) and the equity in your home can set you on a solid path to financial independence.

How does the middle class build wealth?

The middle class builds wealth primarily through steady saving and investing in retirement accounts and homeownership. According to a Federal Reserve report from 2023, the median American family saw a 37% increase in wealth, outpacing even the top one percent. Families earning $150,000 to $250,000 per year are consistently contributing to retirement plans and buying homes, growing their wealth significantly over time.

The story of wealth-building in America is not just about the super-rich; it's about ordinary families making disciplined financial decisions and seeing significant gains over the long term.

What steps can you take to become a 401(k) millionaire?

  1. Start Early and Contribute Consistently: Begin contributing to your 401(k) as early as possible, and aim to save 10-15% of your salary each year. The earlier you start, the more time your money has to grow.

  2. Maximize Employer Matches: Take full advantage of any employer match available in your 401(k) plan. This is essentially "free money" added to your retirement savings.

  3. Invest Wisely and Stay the Course: Choose a diversified investment strategy that aligns with your risk tolerance and retirement goals. Stay invested through market ups and downs to let your assets grow over time.

  4. Plan for Homeownership: Purchasing a home can be a key factor in building wealth. Not only does it provide a place to live, but as your mortgage gets paid down and property values increase, your net worth grows.

  5. Stay Educated and Informed: Continue learning about financial planning, retirement savings, and investment strategies. Make use of educational materials and resources available through your 401(k) plan provider to make informed decisions.

Key Takeaways

  1. Consistent 401(k) Contributions: The most reliable path to becoming a millionaire is to contribute consistently to your 401(k) plan. Over a career of 30-40 years, these contributions can compound and grow significantly.

  2. Maximize Employer Contributions: Take advantage of any matching contributions from your employer. Contributing at least enough to get the full match can significantly increase your retirement savings over time.

  3. Invest Wisely and Stay Invested: Choose a diversified investment approach in your 401(k) and stick to it, letting your money grow over the long term.

  4. Homeownership as a Wealth Builder: Buying and maintaining a home can help build equity and grow your net worth over time, providing another avenue for wealth accumulation.

  5. Middle-Class Wealth Building: Most millionaire families are not part of the top one percent; they are middle-class or upper-middle-class families who have saved consistently, invested wisely, and benefited from rising property values.

Becoming a 401(k) millionaire isn't a quick process, but it's a proven way to build wealth for your retirement. Remember that you don't have to be earning six figures to achieve financial freedom. By making smart decisions with your 401(k), taking advantage of employer matches, and investing in a home, you can join the ranks of those who have achieved the financial security they desire.

For more insights on building your retirement savings and making the most of your 401(k), explore the educational resources provided by your 401(k) plan provider and check out the latest financial news and reports, including the Federal Reserve’s findings on American wealth growth.

Start your journey to becoming a 401(k) millionaire today by making small, consistent contributions and planning for your future. Your financial security depends on the steps you take now to secure a stable and prosperous retirement.


Meet the Author

Our low-cost 401k plans are easy to setup online and are supported by our 401k advisors and specialists. ShareBuilder 401k serves small business and medium-sized companies, as well as the self-employed. We offer Roth 401k, Safe Harbor 401k, Traditional 401k, and Solo 401k options. Your 401k plan is paired with investment management expertise and employee education to help you save more.