Tax Deduction Calculator
Add every legitimate 1099 write-off — mileage, home office, phone, gear, health insurance, and retirement — and see the total tax you'll save.
Schedule C deductions cut both income tax and 15.3% SE tax; above-the-line deductions cut AGI too.
Your deductions
Stack every 1099 write-off — Schedule C plus above-the-line adjustments.
Total deductions
$15,450
Estimated tax saved
$4,819
Effective savings
31.2%
Deduction breakdown
Mileage (12,000 × $0.7)$8,400
Home office (simplified)$600
Schedule C total$10,050
Above-the-line (health + retirement)$5,400
SE tax reduction (14.13%)$1,420
Income tax reduction$3,399
Total tax saved$4,819
Schedule C deductions reduce both income tax and 15.3% SE tax. Above-the-line deductions cut income tax and AGI-based phaseouts. Estimates only — not tax advice.
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