Quarterly estimated tax calculatorFederal estimate for 2026 with safe harbor and a payment calendar you can download.Self-employment tax calculatorThe 15.3% tax on your profit, using the 2026 Social Security cap.Freelance hourly rate calculatorTurn the take-home income you want into an hourly and day rate.1099 vs W-2 rate calculatorWhat 1099 rate matches a W-2 job offer once tax and benefits are counted.Home office deduction calculatorCompare the simplified ($5/sq ft) and actual-expense methods.Mileage deduction calculatorBusiness miles times the 2026 IRS rates, with an estimated tax saving.Profit First calculatorSplit each payment into profit, tax, owner pay and operating buckets.Cash runway calculatorHow many months of cash you have under no-income and slow-month scenarios.Free invoice generatorFill in a clean invoice and print or save it as a PDF. Nothing leaves your browser.Mortgage calculatorMonthly payment with taxes, insurance and HOA.Car loan calculatorPayment, total interest and a 36 to 72 month comparison.