Free · Open Source · No Paywalls

Tax tools that
actually work for you.

Simple, transparent tax preparation and calculation tools. No upsells. No account required. Just the clarity you deserve.

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$0
Cost, forever
100%
Browser-based
0
Data stored
MIT
Open source
Platform

Free tools.
No strings attached.

Every tool on TaxClarity is free, open source, and runs in your browser. Your data never leaves your device.

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Open1040
Free federal tax preparation for simple returns. W-2 income, standard deduction, plain-English explanations of every calculation.
Single filersW-2 income2025 tax yearNo account
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Live
OT Tax Calculator
Calculate your net overtime pay after taxes. Enter your rate and hours — see exactly what you take home.
Overtime payNet incomeInstant results
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Live
Tax Diagnostic
Answer a few questions, organize what you have, and walk into your CPA appointment with a structured summary instead of a shoebox.
Pre-file organizerDocument checklistCPA-ready summary
Why we exist
Simple tax prep doesn't need to cost anything.

TurboTax charges up to $169 for a simple return. For millions of Americans with straightforward W-2 income, that's a tax on filing your taxes.

TaxClarity exists to prove it doesn't have to be this way. Free, transparent, open source. No upsells. No dark patterns.

A Brownefield Holdings Public Service Project

Are you a CPA or enrolled agent?

Send clients here before their appointment. They arrive organized with a structured summary — so you spend your time on judgment, not data gathering.

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