Self Directed IRA for Small Business Owners

The complete guide to self directed IRAs for small business owners, sole proprietors, and the self-employed comparing SEP IRA, SIMPLE IRA, Solo 401k, and Traditional SDIRA structures, contribution limits, and how to invest in alternative assets inside each account type.

Small business owners and self-employed investors have access to retirement account structures that employed investors do not. The Solo 401k, SEP IRA, and SIMPLE IRA all allow significantly higher annual contributions than a standard IRA and can each be structured as self directed accounts holding alternative assets including real estate, private loans, precious metals, and private equity. Choosing the right structure depends on your business type, income level, whether you have employees, and what assets you intend to invest in.

This guide covers every retirement account option available to self-employed investors and small business owners, how each one can be self directed into alternative assets, and how to choose the right structure for your situation. The full self directed IRA education library lives at IRA Guidelines. If you are just getting started with SDIRAs, begin with our getting started guide which walks through account types, custodian selection, and funding before you choose a structure.

Key Takeaways

  • Self-employed investors can contribute to a SEP IRA, SIMPLE IRA, Solo 401k, or Traditional SDIRA each with different contribution limits, eligibility rules, and investment flexibility
  • The SEP IRA allows contributions up to 25 percent of net self-employment income with a 2026 maximum of $70,000 significantly higher than the standard IRA limit of $7,500
  • The Solo 401k allows both employee and employer contributions up to a combined $70,000 in 2026 and is the only self-employed retirement account exempt from UDFI on leveraged real estate
  • A SIMPLE IRA is available to small businesses with 100 or fewer employees and allows employee contributions up to $16,500 in 2026 with required employer matching
  • All four account types can be structured as self directed accounts to hold alternative assets the custodian and structure differ but the alternative investment universe is similar
  • The Solo 401k is generally the most powerful structure for self-employed investors pursuing leveraged real estate strategies because it is exempt from UDFI
  • Having employees typically disqualifies the Solo 401k SEP IRA or SIMPLE IRA are the options when you have W-2 employees

Why Self-Employed Investors Need a Different Strategy

Employees of larger companies often have access to 401k plans with employer matching, stable administrative infrastructure, and preset investment menus. Self-employed investors and small business owners have none of that built in, but they have access to account structures with contribution limits that can be three to nine times higher than the standard IRA limit, and the flexibility to self direct those accounts into real estate, private lending, and other alternative investments completely unavailable inside a typical employer 401k.

The result is that a self-employed investor who structures their retirement savings correctly can accumulate tax-sheltered wealth at a rate that employed investors simply cannot match, particularly when higher contribution limits are combined with the returns available from direct real estate ownership, private loans, or early-stage private equity inside a self directed structure. For the complete comparison between a self directed IRA and a 401k, see our guide on self directed IRA vs 401k.

The SEP IRA for Self-Employed Investors

What Is a SEP IRA

A SEP IRA Simplified Employee Pension Individual Retirement Account allows self-employed individuals and small business owners to make large employer contributions to a retirement account. Sole proprietors, LLC members, S-corp owners, and C-corp owners are all eligible. The SEP IRA is one of the simplest high-contribution retirement accounts available because it has no annual filing requirement, no complex plan documents, and straightforward contribution rules.

SEP IRA Contribution Limits

The SEP IRA contribution limit for 2026 is the lesser of 25 percent of net self-employment income or $70,000. For a sole proprietor with $200,000 in net self-employment income, the maximum SEP IRA contribution is approximately $50,000. For an S-corp owner paying themselves a $140,000 W-2 salary, the maximum contribution is $35,000. The 25 percent calculation for sole proprietors is based on net self-employment income after the deduction for one-half of self-employment tax. For the complete contribution limit breakdown across all IRA types, see our IRA contribution limits guide.

Self Directing a SEP IRA

A SEP IRA can be held at a self directed IRA custodian and invested in the same alternative assets as any Traditional SDIRA real estate, private loans, precious metals, cryptocurrency, private equity, and other non-traditional investments. The same prohibited transaction rules apply, the same titling rules apply, and the same income and expense flow rules apply. SEP IRA contributions are tax-deductible and all growth is tax-deferred until distribution. For the complete rules that govern all self directed account types, see our self directed IRA rules guide.

SEP IRA Drawbacks for Small Business Owners with Employees

The SEP IRA has one significant limitation for small business owners with employees: contributions must be made at the same percentage of compensation for all eligible employees as for the owner. If you contribute 20 percent of your own compensation, you must also contribute 20 percent of each eligible employee’s compensation. This makes the SEP IRA expensive when you have multiple employees and reduces its attractiveness relative to the Solo 401k or SIMPLE IRA depending on your business structure.

The Solo 401k for Self-Employed Investors

What Is a Solo 401k

A Solo 401k also called an individual 401k, one-participant 401k, or self-employed 401k is a 401k plan available to self-employed individuals and business owners with no full-time employees other than themselves and a spouse. It combines employee salary deferral contributions with employer profit-sharing contributions, allowing total annual contributions that can reach the same $70,000 ceiling as a SEP IRA but with a different and often more advantageous structure. For the head-to-head comparison, see our self directed IRA vs 401k guide.

Solo 401k Contribution Limits

In 2026 the Solo 401k allows employee salary deferral contributions of up to $23,500, or $31,000 for investors age 50 and older using the catch-up contribution. In addition to the salary deferral, the business can make employer profit-sharing contributions of up to 25 percent of W-2 wages for S-corp and C-corp owners, or 20 percent of net self-employment income for sole proprietors. The combined employee and employer contributions cannot exceed $70,000 in 2026, or $77,500 for those 50 and older. The Solo 401k also allows Roth contributions on the employee deferral portion, providing tax-free growth on a substantial portion of total contributions.

The Solo 401k and UDFI Exemption

The most significant advantage of the Solo 401k over a SEP IRA or Traditional SDIRA for real estate investors is the UDFI exemption. When a self directed IRA uses a non-recourse loan to purchase real estate, a portion of the rental income and sale gain is subject to Unrelated Debt-Financed Income tax at trust tax rates. A Solo 401k is completely exempt from UDFI on leveraged real estate held directly by the plan. For the complete tax framework including UDFI, see our guide on how SDIRAs are taxed.

Self Directing a Solo 401k

A self directed Solo 401k can invest in real estate, private loans, precious metals, cryptocurrency, private equity, and other alternative assets. The plan document must be structured to allow alternative investments not all Solo 401k plan providers allow this. Self directed Solo 401k plan documents typically establish an LLC or trust owned by the plan to hold investments, giving the plan trustee direct control over investment decisions without routing every transaction through a custodian. For custodian comparisons, see our guide on how to compare self directed IRA custodians.

Solo 401k vs SEP IRA vs SDIRA: Which Contributes More?

Scenario: Self-employed investor, age 45, net self-employment income of $150,000. No employees.

  • Traditional SDIRA: Maximum contribution $7,500 per year
  • SEP IRA: Maximum contribution approximately $27,965 (20% of net self-employment income after SE tax deduction)
  • Solo 401k: Employee deferral $23,500 plus employer contribution approximately $27,965 equals combined maximum approximately $51,465

The Solo 401k contributes nearly seven times more than the Traditional SDIRA and nearly double the SEP IRA at this income level. The exact numbers vary based on precise SE tax calculations work with a CPA to determine your specific maximum.

The SIMPLE IRA for Small Businesses with Employees

What Is a SIMPLE IRA

A SIMPLE IRA Savings Incentive Match Plan for Employees is a retirement plan available to businesses with 100 or fewer employees. Unlike the SEP IRA, the SIMPLE IRA allows employees to make their own salary deferral contributions and requires the employer to make matching or non-elective contributions. It is simpler to administer than a traditional 401k but more complex than a SEP IRA.

SIMPLE IRA Contribution Limits

In 2026 employees can defer up to $16,500 into a SIMPLE IRA, with a catch-up contribution of $3,500 for employees age 50 and older bringing the total to $20,000. Employers must either match employee contributions dollar-for-dollar up to 3 percent of compensation or make a non-elective contribution of 2 percent of each eligible employee’s compensation regardless of whether they contribute. The SIMPLE IRA has a two-year waiting period assets cannot be rolled into a Traditional IRA or SDIRA until at least two years after the employee first participated in the plan.

Self Directing a SIMPLE IRA

A SIMPLE IRA can be held at a self directed custodian and invested in alternative assets after the two-year waiting period has elapsed. Before the two-year mark, the assets cannot be transferred to a self directed IRA. After two years, the SIMPLE IRA can be rolled over to a Traditional SDIRA and invested in the full range of alternative assets available to self directed IRA investors. For the rollover process, see our self directed IRA rollover guide.

The Traditional SDIRA as a Supplement

The Traditional self directed IRA with its $7,500 annual contribution limit is rarely the primary retirement vehicle for a self-employed investor with access to a SEP IRA or Solo 401k. It functions best as a supplement a separate account where additional savings can be invested in alternative assets, or where rollover funds from prior employer plans can be consolidated and redeployed into alternative investments. A self-employed investor who also wants to use the Roth structure for high-appreciation assets should also review our guide on Roth IRA conversion to a self directed IRA, which covers converting existing Traditional SDIRA balances tax-efficiently.

Gold and Precious Metals Inside Self-Employed Retirement Accounts

All four account types covered in this guide SEP IRA, Solo 401k, SIMPLE IRA, and Traditional SDIRA can hold IRS-approved gold, silver, platinum, and palladium at an IRS-approved depository. The same purity standards and storage requirements apply regardless of which account type holds the metals. For the complete precious metals rules, see our guide on precious metals in a self directed IRA. For the best gold IRA companies that support SEP IRA and self-employed account structures, see our best gold IRA companies for 2026.

For self-employed investors weighing gold versus other asset classes within their retirement accounts, our guide on gold IRA vs stock market covers the returns, fees, inflation protection, and allocation considerations relevant to the decision. And for the real estate side of the portfolio, see our guide on the best self directed IRA companies for real estate investing.

Choosing the Right Structure

The right structure for a self-employed investor depends on three primary factors. If you have no employees other than a spouse, the Solo 401k is almost always the best choice higher contribution limits, the UDFI exemption on leveraged real estate, and the ability to make Roth deferrals all favor it. If you have employees and want simplicity, the SEP IRA wins on administrative ease. If you have employees and want employees to contribute their own money, the SIMPLE IRA is the appropriate structure. A CPA experienced in self-employed retirement planning should model the numbers for your specific income level and business structure before you commit to any of these options.

Frequently Asked Questions

Can a small business owner have both a SEP IRA and a Solo 401k?

In most cases no you cannot contribute to both a SEP IRA and a Solo 401k in the same year for the same self-employment income. The IRS limits combined contributions across plans to the annual defined contribution limit of $70,000. However, a business owner with income from multiple sources may be able to maintain different plan types for different income streams. This is a complex area and requires guidance from a CPA experienced in self-employed retirement planning.

Can I self direct a SEP IRA into real estate?

Yes. A SEP IRA can be held at a self directed IRA custodian and invested in real estate, private loans, precious metals, and other alternative assets under the same rules that apply to Traditional SDIRAs. All income must flow back into the SEP IRA, all expenses must be paid from SEP IRA funds, and the same prohibited transaction rules under IRC 4975 apply. Unlike a Solo 401k, a leveraged SEP IRA real estate investment is subject to UDFI on the debt-financed portion of rental income.

What is the difference between a Solo 401k and a self directed IRA for real estate?

Both can hold real estate directly. The key differences are contribution limits, the UDFI exemption, and participant loans. The Solo 401k has dramatically higher contribution limits, is exempt from UDFI on leveraged real estate, and allows participant loans of up to 50 percent of the account balance or $50,000 whichever is less. The self directed IRA has lower contribution limits, is subject to UDFI on leveraged real estate, and does not allow participant loans. For self-employed real estate investors who qualify, the Solo 401k is generally the superior structure.

Can I roll a prior employer 401k into a self directed IRA if I am self-employed?

Yes. A prior employer 401k, 403b, 457, or TSP can be rolled directly into a self directed IRA regardless of your current employment status. The rollover is not subject to the annual contribution limit and is not a taxable event when done as a direct trustee-to-custodian transfer. Self-employed investors frequently roll prior employer plan balances into a self directed IRA to gain access to alternative investments while maintaining a separate SEP IRA or Solo 401k for ongoing contributions from current self-employment income. For the complete rollover guide, see our self directed IRA rollover guide. For an overview of the whole getting started process, visit our getting started guide.

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