Business Deduction Estimator
Tally the deductions self-employed people miss most, then estimate the tax savings at your marginal rate.
These are estimates. Want real numbers from a real CPA?
Real fee benchmarks for tax prep, bookkeeping, payroll, and advisory — by service and business type.
How it works
- Home office = annual home costs × (office sqft / home sqft).
- Mileage at the 2025 standard rate of 70¢ per business mile.
- Meals limited to 50%; phone/internet pro-rated by business use %.
- Section 179 equipment, SE health insurance, and retirement contributions added directly.
Assumptions
- Estimate only — doesn't validate documentation, exclusive-use, or SSTB rules.
- Marginal rate applied flat to total deductions for the savings figure.
- Doesn't include depreciation on assets beyond Section 179.
Frequently asked questions
Related calculators
These calculators provide estimates for general planning only and are not tax, legal, or financial advice. Always verify with a licensed CPA for your specific situation.
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