Professional-grade tools for small business owners, HR managers, and financial professionals. Free, accurate, and instant results.
Estimate take-home pay, tax brackets, and withholding
Tools for salary analysis, raises, overtime, and prorated pay
Workforce metrics, severance pay, workers comp, and hiring costs
Calculate earnings, commissions, and convert between pay rates
Pricing, margins, ROI, discounts, and investment analysis
Track work hours, time-to-decimal, and business day counting
Practical, in-depth breakdowns on payroll taxes, overtime regulations, and compensation planning.
Social Security wage base limits, Medicare surtaxes, and self-employment adjustments with worked examples.
From flat rate to tiered quotas and accelerators — avoid clawback traps and motivate sales teams.
Understanding daily 8-hour overtime, 12-hour double time, and 7th consecutive day rules.
At QuickBizCalc, we understand that accuracy is everything when it comes to payroll, commissions, and business finances. Our suite of 50 free online calculators is designed specifically for small business owners, HR professionals, and financial analysts who need instant, reliable results without the complexity of expensive software.
Whether you are calculating a sales commission, estimating payroll taxes, or analyzing ROI for your next investment, our tools provide a transparent breakdown of formulas and worked examples.
Every formula comes from IRS Publication 15-T, Department of Labor FLSA rules, or the relevant state agency, and each calculator page cites the publication it is based on.
Learn about our methodology →Calculations run locally in your browser. Your salaries, employee numbers, and financial records are never saved to our servers.
Read our privacy commitment →We are constantly expanding our suite. If you have a specific business calculation you need automated, let us know.
Request a CalculatorQuickBizCalc hosts 50 free business and HR calculators built for US small business owners, payroll administrators, HR managers, and self-employed professionals. Every tool on this site is 100% free with no signup, no paywall, and no usage limit. Calculations run entirely in your browser, which means your salary, employee count, and financial inputs never leave your device.
Spreadsheets are powerful but error-prone. A misplaced parenthesis in a payroll formula can cost an employee hundreds of dollars per paycheck, and a wrong overtime multiplier can trigger a Department of Labor audit. Our calculators encode the correct formulas for the 2026 tax year — including the 6.2% Social Security wage base limit ($184,500 in 2026), the 1.45% Medicare employee portion, the 22% federal supplemental withholding rate for bonuses, and FLSA time-and-a-half overtime rules — so you can rely on the math without re-deriving it from IRS Publication 15-T every time.
Our typical users are US-based hourly employees checking their next paycheck, small business owners running payroll for 1-10 employees, HR directors benchmarking turnover and cost-per-hire against industry averages, freelance consultants tracking billable hours and utilization rate, and sales reps modeling commission under tiered or quota-based plans. The most-visited calculators on the site are the hourly paycheck calculator, the time card calculator with lunch, and the business day calculator.
Yes. Our tax calculators use the 2026 federal income tax brackets, the 2026 Social Security wage base ($184,500), and the 2026 FICA rates (6.2% + 1.45% = 7.65% employee portion). Every calculator page includes a Statutory Sources section citing the IRS publication, FLSA section, or SSA regulation that the formula is based on.
Yes — every calculator has an Embed button in the top-right of the page that generates a one-line iframe snippet you can paste into your own website or blog. Embedding is free for personal and commercial use, and the embedded calculator includes a small "Powered by QuickBizCalc" attribution link.
QuickBizCalc is supported by display advertising. We do not sell user data, we do not require an account, and we do not email you after you use a calculator. The ads you see on each page keep the tools free for everyone.
