What Is A SEP IRA And What Are The Annual Contribution Rules For SEP IRAs?

Thayer Partners Thayer Partners November 04, 2025

Discover how SEP IRAs empower small business owners and self-employed individuals to supercharge their retirement savings while maximizing tax benefits.

Understanding SEP IRAs: A Flexible Retirement Solution for Businesses

A Simplified Employee Pension Individual Retirement Arrangement (SEP IRA) is a retirement savings plan designed specifically for small business owners and self-employed individuals. Unlike traditional retirement plans, SEP IRAs offer flexibility, low administrative overhead, and high contribution limits, making them an attractive option for businesses of varying sizes.

SEP IRAs allow employers to contribute to traditional IRAs set up for employees, including themselves if they are self-employed. This structure makes it easy for businesses to establish retirement plans while providing meaningful benefits for both the owner and their workforce.

Who Can Open a SEP IRA and Why It Matters

Any business owner—including sole proprietors, partnerships, corporations, and S corporations—can open a SEP IRA for themselves and their eligible employees. This inclusivity makes SEP IRAs a popular choice among entrepreneurs, freelancers, and small businesses looking for an efficient way to provide retirement benefits.

By opening a SEP IRA, business owners can attract and retain top talent, demonstrate commitment to employee well-being, and create a tax-advantaged savings opportunity for themselves. Understanding eligibility requirements is crucial to ensure compliance and maximize the plan’s benefits.

Annual Contribution Limits and Important Deadlines Explained

For 2024, employers can contribute up to 25% of each eligible employee’s compensation or $66,000, whichever is less. Self-employed individuals use a special calculation to determine their maximum contribution, generally resulting in a slightly lower effective percentage due to the way net earnings are calculated.

All contributions must be made by the employer’s tax filing deadline, including extensions. This allows business owners to make contributions after the end of the calendar year, providing flexibility in year-end tax planning and cash flow management. It is important to review annual IRS updates, as contribution limits are subject to change based on cost-of-living adjustments.

Tax Advantages and Implications of SEP IRA Contributions

SEP IRA contributions are tax-deductible for the business, reducing taxable income and potentially lowering the overall tax burden. For employees, contributions made to their SEP IRA accounts are not included in their gross income, allowing their investments to grow tax-deferred until retirement.

Withdrawals from a SEP IRA are taxed as ordinary income, and early withdrawal penalties may apply if funds are accessed before age 59½. Properly managing contributions and understanding the tax implications is essential for optimizing both immediate and long-term financial outcomes.

Key Considerations for Maximizing SEP IRA Benefits

To fully leverage a SEP IRA, business owners should regularly review IRS guidelines, monitor contribution limits, and coordinate contributions with overall tax planning strategies. Consistency in contributions and clear communication with employees about plan benefits can increase engagement and satisfaction.

It is also advisable to work with financial professionals who can provide guidance on maximizing retirement benefits, ensuring regulatory compliance, and integrating SEP IRA contributions into broader wealth management plans. This proactive approach helps business owners and executives make the most of their retirement strategy while supporting their long-term business objectives.

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This material prepared by Thayer Partners is for informational purposes only.  It is not intended to serve as a substitute for personalized investment advice or as a recommendation or solicitation of any particular security, strategy or investment product.  Thayer Partners is a Registered Investment Adviser. SEC Registration does not constitute an endorsement of Thayer Partners by the SEC nor does it indicate that Thayer Partners has attained a particular level of skill or ability. The material has been gathered from sources believed to be reliable, however Thayer Partners cannot guarantee the accuracy or completeness of such information, and certain information presented here may have been condensed or summarized from its original source.  Thayer Partners does not provide tax or legal or accounting advice, and nothing contained in these materials should be taken as such.

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