Planning for retirement as a self-employed individual comes with unique challenges and unique opportunities. Unlike traditional employees who may rely on workplace sponsored retirement plans, entrepreneurs, freelancers, and small business owners often need to take retirement planning into their own hands. That is where the Solo 401k comes in. Designed specifically for business owners with no employees other than a spouse, this plan offers the flexibility to contribute as both the employer and the employee, unlocking higher annual contribution limits than many other retirement accounts. In this blog, we will explore the details of Solo 401ks, from contribution limits and tax advantages to providers, investment options, and the steps to open one, so you can determine if this retirement tool is the right fit for your financial future.
A Solo 401k offers some of the highest contribution limits available for retirement savings. In 2025, individuals can contribute up to $70,000, with an additional $7,500 in catch-up contributions allowed for those over the age of 50. One of the key benefits of this plan is that you can contribute as both the employer and the employee, which increases the total amount you are able to put away each year. There are limits to the maximum elective deferrals you can contribute, but if you are over the age of 50, your maximum elective deferral is $30,000, including the catch-up contribution.
Beyond higher contribution limits, a Solo 401k also provides valuable tax advantages. Since it is a tax-deferred account, you will not be required to pay taxes until you begin making withdrawals. Contributing can lower your taxable income today, and in some cases may even move you into a lower tax bracket. Depending on your income level and goals, you may also want to consider whether a traditional or Roth Solo 401k is the better fit, as each offers unique tax benefits both now and in retirement.
Several well-known brokerage firms, including Fidelity, Charles Schwab, E-Trade, and Vanguard, offer Solo 401k plans, often referred to as “one participant” or “individual” 401k plans. While these options share many similarities, each provider has its own fee structures, investment choices, and features such as loan availability or Roth contributions. Carefully comparing these details is essential to ensure you select the plan that best aligns with your financial goals and business needs.
Once you have reviewed your options and confirmed your eligibility, opening a Solo 401k is straightforward. You will need an EIN number and will be required to complete your provider’s plan adoption agreement. From there, you can fund your account and begin building your retirement savings with the flexibility and control that a Solo 401k provides.
Solo 401k plans provide access to a wide variety of investment opportunities, giving you the flexibility to shape your portfolio according to your personal financial goals. As a participant, you can choose from traditional assets such as stocks, bonds, mutual funds, and ETFs, while also having the ability to diversify into alternative investments like real estate. This broad range of options makes the Solo 401k a powerful tool for building a retirement strategy that balances growth, income, and risk management.
A Solo 401k is one of the most powerful retirement planning tools available to self-employed individuals and small business owners without employees. With high contribution limits, flexible investment options, and valuable tax advantages, it offers both growth and control over your financial future. Choosing the best Solo 401k provider depends on your specific needs, whether that is access to Roth options, low fees, or the ability to invest in alternative assets. Take the time to compare providers, understand the features that matter most to you, and begin building a retirement strategy that aligns with both your business goals and your lifestyle.