Free Business & Tax Tools
Explore free educational calculators and planning tools for business owners, self-employed individuals, and taxpayers.
Every tool below is free to use with no signup, no login, and no lead form. Calculations run entirely in your browser, and your entries are not stored or transmitted. These tools are for general educational use only and are not tax, legal, or accounting advice.
Tax Planning Tools
Estimate what you may owe and plan payments through the year.
Estimated Tax Calculator
Estimate quarterly federal payments and review general safe-harbor guidelines.
Use Free ToolSelf-Employment Tax Calculator
Estimate Social Security and Medicare tax on net self-employment earnings.
Use Free ToolTax Withholding Checkup
Compare withholding to your expected tax and spot a potential shortfall early.
Use Free ToolRetirement Contribution Estimator
Compare general contribution room across IRA, SEP, SIMPLE, and 401(k) plans.
Use Free ToolBusiness Owner Tools
Understand the real cost of paying yourself and your team.
S-Corp Salary Estimator
Compare estimated self-employment tax with S-corporation salary and payroll tax.
Use Free ToolPayroll Cost Calculator
Estimate total employer payroll cost including employer taxes and benefits.
Use Free ToolEmployee vs. Contractor Calculator
Compare estimated employer cost of a W-2 employee against a 1099 contractor.
Use Free ToolBusiness Mileage Calculator
Estimate a mileage deduction using the applicable IRS standard mileage rates.
Use Free ToolHome Office Deduction Estimator
Estimate a home office deduction using the IRS simplified method.
Use Free ToolBusiness Planning Tools
Test pricing, profitability, and cash needs before you commit.
Business Break-Even Calculator
Find the sales level where contribution margin covers your fixed costs.
Use Free ToolProfit Margin Calculator
Calculate gross, operating, and net margin plus markup on your pricing.
Use Free ToolStartup Cost Calculator
Estimate startup capital, working-capital reserves, funding gap, and cash runway.
Use Free ToolRental Property Calculator
Estimate rental cash flow, net operating income, cap rate, and cash-on-cash return.
Use Free ToolCapital Gains Tax Estimator
Estimate potential federal tax on a capital gain, including short-term vs. long-term treatment.
Use Free ToolBusiness Cash-Flow Calculator
Forecast monthly cash inflows, outflows, ending balances, shortage months, and reserve needs.
Use Free ToolBusiness Entity Comparison Tool
Compare sole proprietorships, LLCs, partnerships, S corporations, and C corporations side by side.
Use Free ToolMedical Practice Profitability Calculator
For physicians, dentists, and healthcare owners: estimate practice revenue, overhead, operating margin, and break-even visits.
Use Free ToolMedical Practice Revenue Cycle Calculator
Estimate how collections, denials, write-offs, and days in A/R may affect practice cash flow.
Use Free ToolProvider Hiring Calculator
Estimate the cost, break-even visits per day, and ramp-up impact of adding a physician, dentist, NP, PA, or therapist.
Use Free ToolMedical Practice Expansion Calculator
Estimate startup capital, working-capital reserve, break-even visits, ramp-up cash shortfall, and funding gap for a new location or expansion.
Use Free ToolMedical Practice Payer Mix Calculator
Model how shifts in Medicare, Medicaid, commercial, and self-pay visit mix may affect aggregate collections, variable costs, and operating margin.
Use Free ToolMedical Equipment ROI Calculator
Estimate monthly cash contribution, break-even uses, break-even months, and first-year ROI for imaging, dental, therapy, lab, or other equipment.
Use Free ToolMedical Practice Overhead Analyzer
Analyze practice overhead, expense ratios, operating margin, and the financial impact of revenue growth or cost reductions.
Use Free ToolMedical Practice Cash Reserve Calculator
Estimate working-capital targets, collection-delay cash impact, reserve gaps, and how many months of operating costs your cash covers.
Use Free ToolNeed a CPA to review your situation?
These calculators give general estimates. A conversation with our team can put them in context for your business.
Schedule a Tax Planning Consultation