
FreelancerTax Pro
Federal + all 50 state tax calculator for US freelancers
What it does
Hey Product Hunt! 👋 I built FreelancerTax because I was tired of tax calculators that only do federal — leaving freelancers completely in the dark about their state tax burden. Selecting Texas vs California on the same $80K income shows a $10,664 difference in total tax. That's the kind of clarity freelancers need — and nobody was providing it simply.
Does the same job
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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…
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