About RateWise

RateWise is a free, open-source calculator hub designed to help individuals and businesses make informed financial decisions. We provide accurate, easy-to-use calculators for VAT, sales tax, salary, compound interest, loans, and financial independence planning.

Our Mission

We believe everyone should have access to professional-grade financial tools without hidden fees or sign-up walls. Our calculators are built with transparent formulas informed by official government tax rates and financial standards.

How We Stay Free

RateWise is supported by non-intrusive display advertising. We never sell your data or charge for calculator access. Our commitment is to keep every tool freely available forever.

Accuracy & Transparency

All calculator logic is open source and can be inspected. We source tax rates from official government publications and update them regularly. However, our tools are for informational purposes only — always consult a qualified professional for important financial or tax decisions.

Technology

RateWise is built with Next.js, TypeScript, Tailwind CSS, and PostgreSQL. We use server-side rendering for SEO and performance, with client-side interactivity where needed for our calculator interfaces.