Taxes
2026 self-employment tax calculator
Estimate 2026 federal tax with filing status, other income, and W-2 wages.
Open calculatorThe TaxKit toolkit
Explore practical calculators for the everyday numbers behind independent work. Free to use, with no account required.
Estimate 2026 federal tax with filing status, other income, and W-2 wages.
Open calculatorCreate a polished, itemized invoice and save it as a PDF.
Open calculatorFind the sales volume that covers your fixed and variable costs.
Open calculatorSee monthly payments and how interest adds up over time.
Open calculatorBuild a rough tax reserve from projected income and prior-year tax.
Open calculatorPrice your work around take-home goals, time off, and overhead.
Open calculatorUnderstand gross margin, net margin, and markup at a glance.
Open calculatorLog business expenses in your browser and see monthly category totals.
Open calculatorEstimate tax and total price using a rate you provide.
Open calculatorEstimate simple interest on an overdue invoice using your chosen rate.
Open calculatorTaxKit tools provide general estimates and educational information. They do not replace professional tax, accounting, or financial advice.