About Zyphub

Zyphub is a set of free online tools for work, money and everyday life. Our main aim is simple: the tool must actually serve you well.

How we build calculators

Every tax, stamp duty and fee calculator uses figures taken from the official page of the tax authority or marketplace. Each result shows the tax year and links to the source. When we cannot verify a rate from an official page, we leave it out instead of guessing.

Countries covered

The United States, United Kingdom, Canada, Australia, India, New Zealand and Singapore. You choose your country inside each calculator.

Your files stay with you

The image and PDF tools process files in your browser. Nothing is uploaded to our servers.

Limits

Results are estimates for planning. They are not tax, legal or financial advice. Rates change each year, so check the linked official source before you act. If you spot an error, tell us and we will check it against the official page.