Results are for reference only
Each tool follows published formulas and official data, and explains its calculation on the page. Results are based on the numbers you enter and typical cases, so they may not match your situation exactly.
Official sources take precedence
Where a tool depends on rules, rates or holidays, we link the official source, show the last-updated date, and update the page when things change. There may be a delay between an official change and our update, so rely on the government agency, financial institution or contract for the final numbers.
Not professional advice
Nothing on this site is legal, tax, financial or medical advice. For important decisions, consult a qualified professional.
Limitation of liability
The site is free to use, and decisions you make with it are your own. We are not liable for any direct or indirect loss arising from use of the site.
External links
Linked sites are run by others. We cannot guarantee their accuracy or availability.
Copyright
The text, interface design and code of this site are protected by copyright. You are welcome to quote it with a credit and a link; please don’t copy whole pages.
Found a mistake?
If a result or explanation looks wrong, email us with the tool and the numbers you entered. We will fix confirmed errors as soon as we can.