Self-Employment Tax Calculator.
Estimate your self-employment taxes (Schedule SE) if you work as a freelancer, independent contractor, or small business owner.
Your business revenues minus expenses (Schedule C line 31).
Fetching Schedule SE thresholds...
Frequently Asked Questions
What is the self-employment tax rate for 2026?
The self-employment tax rate is a flat 15.3% of your net business earnings. This consists of 12.4% for Social Security (up to the annual wage cap of $184,500) and 2.9% for Medicare. Unlike W-2 employees, 1099 contractors must pay both the employee and employer portion.
How do I calculate self-employment tax?
First, multiply your net business earnings by 92.35% to find your taxable self-employment income base. Then apply the 12.4% Social Security rate (up to the annual wage cap) and the 2.9% Medicare rate. The sum of these represents your self-employment tax (Schedule SE).
Do I have to pay quarterly estimated taxes?
Yes. Freelancers and independent contractors who expect to owe $1,000 or more in federal taxes are required to make quarterly estimated payments (Form 1040-ES) to avoid underpayment penalties. These payments are due in April, June, September, and January.
Can I deduct half of self-employment tax?
Yes. The IRS allows self-employed individuals to deduct 50% of their total self-employment tax (representing the employer equivalent share) as an above-the-line deduction on Schedule 1 of Form 1040. This reduces your adjusted gross income (AGI) for federal income tax.
How Self-Employment Taxes Differ from W-2 FICA
When you work as a standard W-2 employee, your employer splits the cost of FICA taxes with you. The employee pays 7.65% (6.2% for Social Security and 1.45% for Medicare), and the employer matches that identical 7.65% share. However, when you operate as a freelancer, independent contractor, or business owner, you are considered both the employee and the employer. Consequently, you are legally responsible for paying the entire 15.3% tax burden yourself. Using a self employment tax calculator helps you model these contributions to prevent unexpected liabilities.
Calculating the 15.3% Schedule SE Tax Liability
The self-employment tax is determined using IRS Schedule SE. The 15.3% rate is split into two distinct elements:
- Social Security (12.4%): Applies to your net earnings up to the annual taxable wage cap (set at $184,500 for the 2026 tax year). Any net self-employment income earned above this limit is exempt from the 12.4% tax.
- Medicare (2.9%): Applies to all self-employment earnings with no income cap. Furthermore, high earners may trigger an additional 0.9% Medicare surtax on earnings exceeding $200,000 for single filers ($250,000 for married couples filing jointly).
The 92.35% Net Multiplier and Write-Off Deductions
The IRS does not tax 100% of your gross freelance business revenue. First, you deduct standard business expenses (such as software, supplies, or home office space) to find your net profit. Then, self-employment taxes are calculated on only 92.35% of that net profit. This multiplier mimics the W-2 deduction where employer FICA matching is not taxed as employee income.
To further ease the burden on sole proprietors, the IRS permits you to claim 50% of your total self-employment tax as an above-the-line deduction on Form 1040. This deduction lowers your adjusted gross income (AGI) and reduces the amount of federal income tax you owe. Utilizing a 1099 tax calculator is critical for modeling quarterly estimated tax payments and keeping your business finances on track.
Why MyPaycheckCalculator is Better
If you are looking for a private, faster Self-Employment Tax Calculator or search for a secure SmartAsset self-employment tax calculator alternative, we offer a modern, uncluttered alternative. Here is how our utility compares to legacy traditional options:
MyPaycheckCalculator Advantage
- Calculate self-employment 15.3% tax and above-the-line AGI deductions instantly.
- All 1099 calculations happen securely on your local device.
- A clean, ad-free UI designed to respect the privacy of small businesses.
Legacy Calculator Drawbacks
- Funnels independent contractors into high-commission advisor referral programs.
- Monitors freelance income streams using third-party tracking scripts.
- Outdated 1099 deductible thresholds and Schedule SE caps.