Contractor Tax Calculator
Calculate your total contractor tax liabilities and compare what contract work yields compared to traditional W-2 employment.
Business Income & Expenses
Total payments received from clients or platforms before expenses.
Ordinary and necessary expenses: supplies, software, health insurance.
W-2 wages or spouse earnings that push you into higher tax brackets.
Effective Tax Rate: 27.10% on net earnings
1099 & SECA Tax Breakdown
- Gross 1099 / Business Revenue
- $90,000
- Deductible Business Expenses Mileage, software, equipment, home office
- -$15,000
- Net Taxable Profit (Schedule C) IRS applies SECA to 92.35% of this amount
- $75,000
- Self-Employment Tax (SECA 15.3%) SS: $8,589 • Medicare: $2,009
- -$10,597
- 50% SE Tax Deduction (AGI Benefit) Deducted above-the-line from federal tax
- $5,299
- Estimated Federal Income Tax Standard deduction subtracted
- -$6,504
- Estimated State Income Tax CA state tax estimate
- -$3,220
- Total Estimated Tax Obligation
- -$20,322
- Estimated Net Take-Home Profit
- $54,678
PayCalcly provides estimates for informational purposes only. Tax calculations may vary based on individual circumstances. This site is not affiliated with or endorsed by the IRS.
How It Works
Calculates self-employment tax (15.3% on 92.35% of net profit), federal income tax, and state tax for independent 1099 contractors, detailing quarterly estimated payment amounts.
Calculation Example
An independent contractor with $90,000 in gross receipts and $12,000 in valid business write-offs reports $78,000 net profit. Total estimated taxes equal roughly $21,100, requiring quarterly payments of approximately $5,275.
Frequently Asked Questions
IRS quarterly deadlines are typically April 15 (Q1), June 15 (Q2), September 15 (Q3), and January 15 of the following year (Q4).
Related Calculators
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1099 Tax Calculator
Estimate self-employment tax, federal income tax, and state tax obligations on Form 1099 income after deducting valid business expenses.
Self-Employment Tax Calculator
Calculate your SECA tax liability, federal income taxes, and net business profit. Includes the 50% above-the-line deduction.
Hourly to Salary Calculator
Turn an hourly wage into an annual salary figure. Customize hours worked per week and weeks worked per year to get your true yearly pay.
Quarterly Tax Calculator
Determine your four quarterly estimated tax payment amounts (Form 1040-ES) to satisfy IRS safe harbor rules and avoid penalties.