Tax year 2026Q4 due in 81 days
Free self-employed tax calculators.
Instant estimates for freelancers, 1099 contractors, and small businesses, no sign-up, nothing stored. Each one runs the same IRS-aligned engine Taxottic uses to keep your forecast live all year.
- Self-Employment Tax CalculatorSee your full 2026 tax on 1099 income, self-employment tax, federal and state income tax, QBI deduction, and your next quarterly payment.
- Quarterly Estimated Tax CalculatorWork out what to send the IRS each quarter, all four payments and due dates, so you set the money aside and dodge the underpayment penalty.
- 1099 Tax CalculatorFor independent contractors, gig workers, and freelancers, estimate your tax on 1099-NEC and 1099-K income, including what your write-offs save you.
- Mileage Deduction CalculatorTurn business miles into a deduction at the 2026 IRS rate (72.5¢/mile) and see roughly what it saves you, for anyone who drives for work.
- IRS Mileage LogEnter your business trips and get a log with the date, purpose and miles Publication 463 expects, priced per trip date. Download as CSV, nothing uploaded.
- Employee Mileage Reimbursement CalculatorWhat reimbursing your team's business driving costs for the year at the IRS standard rate (72.5¢ then 76¢ per mile), and the net cost after the deduction.
- How Much to Set Aside for TaxesThe exact percentage of every payment to move into savings so quarterly taxes are covered before April, not a rule of thumb.
- Effective Tax Rate CalculatorWhat you actually pay across all your income, effective rate, marginal bracket, and after-tax take-home. Works for W-2 or self-employment income.
Guides to go with them
The calculators tell you how much. These plain-English guides tell you why, and what you can legally do to owe less.