Free Tax Tools for Businesses-of-One

FAQs

• Are these calculators free?

  Yes, all are free to use and none require payment. Some results pages ask for an email to send you a detailed breakdown, but the calculations themselves run without it.

• How accurate are the results?

  They're directional estimates built on federal rules and standard rates. They don't model state taxes, which vary considerably, and they can't account for every deduction or credit specific to your situation. Use them to understand which direction the math points, not as a substitute for a filing.

• Which calculator should I start with?

  If you're deciding on entity structure, start with the S Corp Tax Calculator. If you're weighing a specific job or contract, start with the 1099 vs W-2 Calculator. If you already run an S corp and want to understand the cost side, start with the S Corp Admin Cost Calculator.

• Do I need to enter sensitive information?

  No. The calculators ask for income figures and filing details. They don't ask for a Social Security number, bank details, or tax ID.

• What tax year do these use?

  Each calculator states the tax year and the rates it applies. Federal thresholds and the Social Security wage base adjust annually, so check the stated year against the year you're planning for.

• Can I use these if I'm not in the US?

  No. All of these calculators are built on US federal tax rules and are only meaningful for US-based businesses.