About

Small tools, one job each.

A small independent project building free calculators for U.S. tax questions that are new, confusing, or both.

Last updated: 2026-11-13

What we do

When a tax law changes, the first wave of coverage explains the politics. The second wave explains the rule. Almost nobody answers the only question a worker has: what does this mean for my paycheck? We build a calculator for that question, publish the assumptions next to it, and leave it free.

Our first tool covers the OBBBA qualified overtime deduction (IRC §225) for tax years 2025 through 2028, with a separate version for each of the 50 states. More tools may follow the same pattern: one focused question, one usable answer.

How the numbers are sourced

Sources last checked: 2026-11-12. Every figure on this site is traceable to a source, and anything we cannot verify is labelled for you to confirm — we do not guess.

What we don't do

How it stays free

The site is static files on free hosting, so it costs almost nothing to run. There are no ads on the site today. If advertising is added later to cover costs, we will update the Privacy Policy and Disclaimer before any such script appears, and we will keep ads away from the calculator itself.