Freelance & Side-Hustle Calculator.

Freelance & Side-Hustle Calculator. とは？

A minimalist, ad-free web tool for freelancers and side-hustlers to track clean income and estimate tax brackets instantly. Features: • Calculate live revenue and deductible business expenses. • See true net clean profit instantly as you type. • Choose estimated tax rates tailored for solo creators. • 100% private—all calculations run securely inside your browser local storage. No credit cards, sign-ups, or corporate bloat. Simple software built for independent builders.