S-Corp Reasonable Salary Calculator
One of the main tax advantages of operating as an S corporation is the ability to split business profit between a reasonable salary and an owner's distribution. S corporation owners who work in the business are required by the IRS to pay themselves a reasonable salary for their services, on which the full 15.3% FICA self-employment tax equivalent is owed (split as 7.65% employer and 7.65% employee). However, any remaining business profit distributed to the shareholder beyond the salary is not subject to FICA taxes, only to income tax. This creates potential FICA savings compared to a sole proprietor, who owes self-employment tax on all net profit. The IRS scrutinises S corporation salaries and requires that the salary be comparable to what the business would pay an unrelated employee performing the same services, based on factors including the nature of the work, qualifications, time devoted, industry pay scales, and the size and complexity of the business. Paying yourself an unreasonably low salary to minimise FICA exposure is a well-known IRS audit trigger. This calculator takes your total S corporation profit, your proposed reasonable salary, the applicable FICA rates, and your marginal income tax rate, then shows the FICA saving compared to sole proprietorship, the income tax owed on both salary and distribution, and the total tax burden so you can choose a defensible salary that balances savings against audit risk.
For a business profit of $180,000 with a reasonable salary of $95,000, the S-Corp distribution is --, and total FICA savings versus all-salary is --.
How S-Corp salary and FICA taxes are calculated
An S-Corp owner-employee must pay themselves reasonable salary (subject to income tax and FICA). Any remaining profit can be distributed as a K-1 distribution (subject to income tax only, not FICA). This calculator shows the FICA savings from splitting income into salary and distribution.
FICA wage base 2025 = $176,100
SS tax = min(salary, $176,100) x 0.124
Medicare tax = salary x 0.029
Employer FICA = (SS tax + Medicare tax)
Employee FICA = (SS tax + Medicare tax)
Total FICA = Employer FICA + Employee FICA
Distribution = profit - salary - Employer FICA
Income tax = (salary + distribution) x (fed rate + state rate)
FICA savings = (profit x 0.153) - Total FICA
Worked example
Business profit $180,000, salary $95,000, 24% federal, 5% state:
- SS tax on $95,000: 95,000 x 0.124 = $11,780
- Medicare tax on $95,000: 95,000 x 0.029 = $2,755
- Employer FICA: $11,780 + $2,755 = $14,535
- Employee FICA: $14,535 (same)
- Distribution: 180,000 - 95,000 - 14,535 = $70,465
- Taxable income: 95,000 + 70,465 = $165,465
- Income tax: 165,465 x 0.29 = $47,985
- Total FICA: 14,535 + 14,535 = $29,070
- FICA savings vs all-salary: (180,000 x 0.153) - 29,070 = $2,570
Reasonable salary and IRS scrutiny
The IRS scrutinizes S-Corp owners who pay themselves artificially low salaries to minimize FICA taxes. If audited, the IRS may reclassify distributions as wages and assess back payroll taxes plus penalties. Tax Court cases (e.g., Radtke v Commissioner) show that comparable compensation for similar duties is the primary test.
Your reasonable salary should reflect:
- Training and experience in your field
- Duties and responsibilities you perform
- Time and effort devoted to the business
- Compensation agreements with employees or partners
- Prevailing wages for similar roles in your industry and location
Use a market-based salary benchmark to document reasonableness. When S-Corp savings are modest relative to the salary paid, the tax benefit is less likely to attract IRS scrutiny.
S-Corp salary calculator: frequently asked questions
What is a reasonable salary for S-Corp purposes?
The IRS requires S-Corp owner-employees to pay themselves a reasonable salary for services rendered. Reasonable means comparable to what other businesses would pay for similar work. The IRS scrutinizes below-market salaries that are artificially low to avoid payroll taxes. Courts have considered training, experience, duties, time devoted, compensation agreements, and prevailing rates in comparable businesses when determining reasonableness. Using a market-based salary benchmark protects against IRS challenge.
How much can I save in FICA taxes by using an S-Corp?
The combined employer and employee FICA rate is 15.3% (12.4% Social Security on wages up to $176,100 in 2025, plus 2.9% Medicare on all wages). By paying a reasonable salary and taking the remainder as a distribution, you owe FICA only on the salary portion, not the distribution. The savings depend on how much profit you allocate as distribution rather than salary. However, the salary must still be reasonable or the IRS will reclassify the distribution as wages and assess back taxes plus penalties.
What is the difference between salary and S-Corp distribution?
Salary is W-2 income subject to income tax and FICA (15.3% combined employer and employee). An S-Corp distribution is K-1 pass-through income subject to income tax but not FICA. However, the salary must be reasonable for the work performed. The IRS looks at comparable compensation, duties, time spent, and training to verify reasonableness.
Are there penalties for setting an unreasonably low salary?
Yes. If the IRS audits and determines the salary was unreasonably low, it will reclassify some or all of the distribution as wages. You will owe back payroll taxes (employer and employee FICA plus income tax withholding), plus accuracy-related penalties (typically 20%) and interest on the unpaid amount. Additionally, you may face penalties for failing to deposit payroll taxes when due.
What is the Social Security wage base and why does it matter?
The Social Security wage base is the maximum wage subject to the Social Security portion of FICA. In 2025, it is $176,100. Wages above that amount are not subject to the 12.4% Social Security tax. However, the 2.9% Medicare tax applies to all wages with no cap. This means high-earning S-Corp owners reduce their FICA burden further by earning above the wage base.
Should I use an S-Corp instead of a sole proprietorship or LLC?
An S-Corp election makes sense only if self-employment tax savings exceed the cost of payroll processing, corporate tax return (Form 1120-S), and corporate governance. For net profits above roughly $60,000, the savings often justify the added complexity. Below that threshold, the cost and hassle typically outweigh the benefit. Consult a tax professional to evaluate your specific situation.
Official sources
- S-Corp employment tax guidance: IRS S-Corp Treatment.
- Payroll tax rules: IRS Publication 15.
- Statutory definition of wages: IRC Section 3121.
- Form 4562 Depreciation: IRS Form 4562.
Reviewed by the CalculatorHub team, edited by James Graham, 13 June 2026. See our methodology. General information, not financial advice. Consult a tax professional.