Insights Blog - Thayer Partners

SEP IRA Contribution Limits: What You Need to Know

Written by Thayer Partners | November 21, 2025

Discover how understanding SEP IRA contribution limits can empower your retirement savings strategy and maximize your financial future.

Unlocking the Basics of SEP IRA Contribution Limits

A Simplified Employee Pension (SEP) IRA is a powerful retirement savings tool designed specifically for business owners, self-employed professionals, and their employees. One of its core advantages is the high annual contribution limit compared to traditional IRAs, enabling participants to save more aggressively for retirement.

SEP IRA contributions are made by the employer, not the employee. Contributions are discretionary and can vary each year based on the business's financial health. However, the IRS sets strict annual limits on how much can be contributed for each eligible participant, ensuring compliance and fairness across all plan members.

How Contribution Limits Are Determined and Updated

The IRS revises SEP IRA contribution limits annually to account for inflation and changes in the economic environment. For 2024, the maximum contribution is the lesser of 25% of an employee’s compensation or $66,000. For business owners, especially sole proprietors, the calculation is slightly more complex due to self-employment tax adjustments, but the 25% rule still generally applies after accounting for these nuances.

It’s crucial for business owners and executives to understand that all eligible employees must receive the same percentage of compensation as a SEP IRA contribution. This ensures compliance and reinforces the SEP IRA’s role as an equitable retirement plan.

Key Benefits of Maximizing Your SEP IRA Contributions

Maximizing SEP IRA contributions can have a significant impact on long-term retirement readiness. Higher contribution limits allow business owners and high-earning employees to shelter more income from current taxation, accelerating the growth of retirement assets through tax-deferred compounding.

Additionally, robust SEP IRA funding can be a compelling benefit for attracting and retaining top talent within your organization, positioning your business competitively in the marketplace.

Common Pitfalls and Compliance Mistakes to Avoid

One common issue is miscalculating the maximum allowable contribution, especially for self-employed individuals who must account for net earnings after self-employment tax. Over-contributing can result in IRS penalties and additional administrative burdens.

Another pitfall is failing to include all eligible employees or making inconsistent contributions between owners and staff, which can trigger compliance violations. Accurate record keeping and regular reviews of eligibility are essential to avoid costly mistakes.

Strategic Tips for Business Owners and Self-Employed Professionals

To maximize the SEP IRA’s potential, business owners should plan contributions in tandem with annual business performance reviews. Engage a financial advisor or tax professional to ensure optimal calculation and compliance, particularly if your compensation structure is complex.

For self-employed professionals, understanding the nuances of self-employment income and contribution calculations is key. Regularly revisiting your retirement funding strategy and adapting to IRS updates will help you make the most of your SEP IRA while minimizing risk.