Self-Employment Tax Reduction Through S-Corp Election

The 15.3% SE tax on business profit is the largest tax burden for most first-time business owners. S-corp elections offer substantial savings by splitting income between salary and distributions, though tradeoffs exist.

Understanding the math. Self-employment tax consists of 12.4% for Social Security (on net earnings up to the wage base of $168,600 in 2024) and 2.9% for Medicare (on all net earnings with no cap). If your net self-employment income exceeds $200,000 ($250,000 if married filing jointly), an additional 0.9% Medicare surtax applies. You deduct half of the SE tax as an above-the-line adjustment on your 1040.

The S-corp election is the primary mitigation strategy. By electing S-corp status, you pay yourself a reasonable salary (subject to FICA) and take remaining profits as distributions (not subject to SE tax). The IRS requires the salary to be reasonable for your industry and role -- setting it too low is a well-known audit trigger.

How much does it actually save? On $150,000 of net business income, a sole proprietor pays approximately $21,200 in SE tax. An S-corp owner paying a $70,000 salary pays roughly $10,700 in FICA on wages, saving about $10,500. The savings grow with income but are offset by additional payroll and tax return preparation costs.

The tradeoff: Reducing SE tax through an S-corp election also reduces your Social Security earnings record, which can lower your future Social Security benefits. A CPA models both the tax savings and the long-term benefit impact.