Business & LLC Calculators
11 free calculators — all 50 states
Calculate LLC costs, self-employment taxes, business entity comparisons, startup costs, and break-even analysis.
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All Calculators
1099 vs. W-2 Take-Home Pay Calculator
Free 1099 vs W-2 calculator. Compare real after-tax take-home pay between a W-2 job offer and a 1099 contractor rate, including self-employment tax and lost benefits.
Break-Even Analysis Calculator
Calculate your break-even point in units and revenue. See how many sales you need to cover fixed costs and start profiting.
Gig & Rideshare Driver Tax Calculator
Estimate your 2026 self-employment tax as an Uber, Lyft, DoorDash, or Instacart driver. Compares the IRS standard mileage rate vs. actual vehicle expenses and shows your quarterly estimated tax payment.
LLC vs. S-Corp Tax Savings Calculator
Free LLC vs S-Corp calculator. See how much self-employment tax an S-Corp election could save vs. staying a sole prop/default LLC, based on your reasonable salary.
Profit Margin Calculator
Calculate gross, operating, and net profit margins. See markup, break-even revenue, and compare margins across your business.
QBI (Section 199A) Deduction Calculator
Free Section 199A qualified business income (QBI) deduction calculator. See your 20% QBI deduction after the taxable-income threshold, wage/UBIA limit, SSTB phase-out, and the new OBBBA minimum deduction.
Quarterly Estimated Tax Calculator
Free quarterly estimated tax calculator for self-employed and 1099 workers. See your required IRS Form 1040-ES payment and safe-harbor amount for each due date.
Revenue Growth Calculator
Project future revenue growth using CAGR. See a constant-rate annual revenue scenario, projected change, and a separate marketing-spend budget.
ROI Calculator
Calculate return on investment (ROI) for any business investment. See total return, a terminal-value annualized comparison, and net profit under your cost assumptions.
Self-Employment Tax Calculator
Estimate 2026 self-employment Social Security and Medicare tax for a single filer. Coordinate W-2 wages and see the deductible half; income tax is excluded.
Startup Cost Calculator
Estimate your total startup costs including equipment, inventory, legal fees, marketing, operating reserve, and contingency. Plan your funding needs.
About Business & LLC Calculators
Calculate LLC costs, self-employment taxes, business entity comparisons, startup costs, and break-even analysis. All 11 calculators are free to use, require no sign-up, and provide instant, formula-based results — see each calculator's own methodology section below for exactly how its figures are calculated and sourced.
Each calculator includes a detailed methodology section explaining the formulas used, data sources cited with verification dates, and frequently asked questions to help you understand the results. Results are shareable and print-friendly.