nowfound

Commerce · alternatives · 2026

24 alternatives to USAFinCalc

Free IRS-accurate financial calculators for Americans

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1CF

    I wanted to share a simple web app I created recently, which lets you estimate income taxes owed in the US: https://taxsim.app All the calculations occur directly in the browser, and are powered by a Fortran program that has been converted to WASM using emscripten. This calculator was originally developed in the 1970s [1] by the non-profit National Bureau of Economic Research. NBER has been maintaining this F77 codebase for the last 50 years, and uses it primarily for academic research on tax policy. The Fortran source code itself is over 1MB of text, because it codifies both…

    2022 · its alternatives →

  2. 2

    Free professional financial calculators no sign up

    Feb 2026 · freefincalc.net · its alternatives →

  3. 3

    Free Online Financial Calculators

    Aug 2026 · finance.webtools3.com · its alternatives →

  4. 4

    Free 2026 tax calculator — paycheck, mortgage, 401k

    Jun 2026 · thetaxcalc.com · its alternatives →

  5. 5

    Take-home pay calculators for all 50 US states. Always free.

    Jul 2026 · paycalchub.com · its alternatives →

  6. 6

    Free paycheck calculator for all 50 US states

    Jul 2026 · uspaycalc.com · its alternatives →

  7. 7

    Free mortgage calculator

    Oct 2025 · mortgagecalcglobal.com · its alternatives →

  8. 8

    2026 US tax calculator: federal, state & self-employment

    Jul 2026 · us-tax-calculator.com · its alternatives →

  9. 9

    Financial calculators built for real people not finance bros

    May 2026 · hitcalc.com · its alternatives →

  10. 10

    Free IRS-accurate capital gains tax calculator for 2026

    May 2026 · capitaltaxcalc.com · its alternatives →

  11. 11

    Accurate 2026 take-home pay calculator for all 50 US states

    Aug 2026 · usepaycheckcalculator.app · its alternatives →

  12. 12

    Free 2026 tax calculators for 1099 & self-employed workers

    Jun 2026 · figuresnest.com · its alternatives →

  13. 13

    17 free financial calculators with live charts, no signup

    Jul 2026 · getfincalc.com · its alternatives →

  14. 14

    Free freelance tax calculator across all 50 US states

    Jun 2026 · taxradar.xyz · its alternatives →

  15. 15

    Smart US tax, budget & solar savings calculators.

    Aug 2026 · ushomecalc.com · its alternatives →

  16. 16

    Free Australian tax calculators. Instant, private, no signup

    Jun 2026 · auscalc.com.au · its alternatives →

  17. 17

    Instant US take-home pay calculator — API + Chrome extension

    Nov 2025 · chromewebstore.google.com · its alternatives →

  18. 18

    See your real take-home pay after taxes

    Jun 2026 · salarycalcnet.com · its alternatives →

  19. 19

    Smart Financial Calculators

    Nov 2025 · apps.apple.com · its alternatives →

  20. 20

    financial calculators for US & UK tax, mortgage, retirement

    Jul 2026 · joincalc.com · its alternatives →

  21. 21

    Canadian finance calculators — TFSA, tax, mortgage & more

    Jul 2026 · canadacalc.net · its alternatives →

  22. 22

    Free financial calculators — no signup, all in your browser

    Jul 2026 · finclac.com · its alternatives →

  23. 23

    Free smart mortgage calculator with amortization schedules.

    Jul 2026 · globaltoolsbox.online · its alternatives →

  24. 24

    Free online calculators for US finance, health & education

    Dec 2025 · usacalculatorhub.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →