1099 Tax Estimator
Estimate self-employment tax, federal income tax, state tax, and quarterly payments from contractor income.
Inputs
| Gross 1099 income | $90,000 |
| Deductible expenses | $12,000 |
| Net business profit | $78,000 |
| Self-employment tax | $11,021 |
| Federal income tax | $7,342 |
| State income tax | $3,900 |
| Effective tax rate | 28.5% |
This calculator is for planning. It does not include all credits, phase-outs, and local taxes.
Last reviewed: February 9, 2026
Contractor Tax Dataset
Sample independent-contractor scenarios with deductions and estimated annual taxes.
| Gross 1099 | Expenses | Total tax | Quarterly payment |
|---|---|---|---|
| $60,000 | $6,000 | $13,654 | $3,413 |
| $95,000 | $15,000 | $23,054 | $5,764 |
| $140,000 | $25,000 | $38,056 | $9,514 |
Common Use Cases
Freelance cashflow
Estimate monthly set-aside for taxes before spending revenue.
Quarterly payment prep
Use quarterly estimate targets to reduce penalties.
Rate negotiation
Back-calculate after-tax income from gross contract offers.
Frequently Asked Questions
What taxes does this include?
Self-employment, federal income tax estimate, and state rate estimate.
Do deductions really change quarterly taxes?
Yes. Lower net profit can reduce both income and self-employment taxes.
Should I pay taxes monthly or quarterly?
IRS estimated payments are generally quarterly; monthly set-aside helps cashflow.
Can LLC or S-Corp users rely on this directly?
Use it as a baseline only; entity-specific rules can differ.
Does this include local city tax?
Not by default; you can approximate by adjusting the state rate input.
Methodology & Data Quality
This 1099 tax calculator is a planning tool. We publish how estimates are computed so results are easy to audit.
Last reviewed: February 9, 2026
How we calculate
- Start from gross 1099 income and subtract deductible expenses to estimate net profit.
- Estimate self-employment tax from 92.35% of net profit and add federal income tax.
- Add an adjustable state rate and return annual, quarterly, and monthly set-aside targets.
Assumptions
- Single or married filing-jointly baseline is supported.
- State tax is estimated as a user-provided flat planning rate.
- Quarterly estimates are split into four equal payments.
Limitations
- Local taxes, credits, and advanced filing scenarios are not fully modeled.
- Real obligations may differ due to business structure and deductions detail.
- This is planning support only and not legal or tax advice.