Taxes

Tax calculators for US-based freelancers and independent contractors covering self-employment tax, quarterly payments, and deduction planning. Handles the mechanics W-2 employees never deal with directly: Schedule SE, safe-harbor estimates, home-office and mileage write-offs, and entity-structure comparisons like S-corp elections. Tied to current IRS rules, not a substitute for a CPA.

Available calculators

15 calculators

1099 Take-Home Pay

Estimate what you actually keep from 1099 income after self-employment, federal, and state tax, using your own rates — plus a monthly take-home figure.

1099 vs W-2

Compare a 1099 contract rate against a W-2 salary and benefits package by isolating the self-employment tax drag on 1099 income.

Home Office Deduction

Compare the IRS simplified ($5/sqft) and actual-expense home office deduction methods side by side, see which one wins, and estimate the tax you save.

Quarterly Taxes

Turn your expected annual net profit and effective tax rate into a quarterly estimated-tax payment schedule, adjusted for what you've already paid.

SE Tax

Estimate your 2026 US self-employment tax — Social Security and Medicare on your net profit — plus the deductible half you claim on Schedule 1.

Mileage Deduction

Compare the IRS standard mileage rate against the actual expense method for your vehicle and find the bigger 2026 US tax deduction.

QBI Deduction

Estimate your 2026 Section 199A qualified business income deduction — the lesser of 20% of QBI or 20% of taxable income, with a simplified SSTB cutoff.

Safe Harbor Tax

Find the IRS safe-harbor estimated-tax target that keeps you penalty-free — the smaller of 90% of this year's tax or 100-110% of last year's.

S-Corp Savings

Estimate how much self-employment tax an S-corp election could save you by paying a reasonable salary, net of the extra payroll and accounting cost.

Tax Set-Aside

Figure out what percent of every freelance dollar to set aside for taxes — combining self-employment tax with your income-tax rate — per invoice.

Sales Tax

Add or remove US sales tax from any price using your combined state, county, and city rate, then see the exact tax and total or pre-tax amount.

UK VAT

Add or remove UK VAT at the standard (20%), reduced (5%), or zero rate, and see the exact VAT amount, net price, and VAT-inclusive total.

Canada Sales Tax

Add or remove Canadian sales tax by province -- GST, HST, or GST+PST/QST -- and see the exact tax amount, total, and pre-tax price.

AU GST

Add or remove Australia's 10% GST from any price. See the GST-inclusive total, the GST amount, and the price excluding GST, verified against the ATO.

Underpayment Penalty

Estimate your IRS underpayment penalty for short or late estimated tax payments — a simplified annual version of the real per-quarter Form 2210 math.