Self-Employment Tax Calculator
Estimate your 2026 Social Security and Medicare taxes as a freelancer, contractor, or small business owner.
Your business income
Choose the year for your estimate.
Enter ordinary and necessary deductible business expenses.
Include wages already subject to Social Security tax. Leave at zero if you have none.
Other Medicare wages can affect Additional Medicare Tax. This is separate from the Social Security wages entered above.
Your estimated tax
Estimated self-employment tax
$11,304
Net business profit$80,000
Earnings subject to SE tax$73,880
Social Security tax$9,161
Medicare tax$2,143
Additional Medicare Tax$0
Deduction for half of SE tax$5,652
Estimated amount after SE tax$68,696
Suggested monthly reserve$942
Estimated tax as a share of business profit
14.1% of net profit
Important: This is an estimate, not a tax return. It estimates self-employment tax, not your total federal or state income tax. The Social Security wage limit is shared with applicable W-2 wages. The Additional Medicare Tax calculation is simplified and may differ from your final Form 8959. Special rules may apply to multiple businesses, spouses, clergy, partnerships, and other situations. Consult IRS Schedule SE and a qualified tax professional for filing.