Contact
If a result looks wrong, a standard has gone out of date, or the calculator you need isn't here, please let us know at the address below.
What to send
Calculation errors
Tell us which calculator, what you entered, what result you got, and what you expected. That combination makes the cause easy to track down.
Outdated rates or standards
Insurance rates, the minimum wage, and tax thresholds change yearly. If something looks stale, a link to the official source speeds up verification.
New calculator requests
Missing something you need? Describe the situation you'd use it in — requests with real use cases get built first.
Partnerships and other questions
Content citations, partnerships, and anything else go to the same address.
About replies
This is a one-person site, so instant replies aren't possible, but every message is read and usually answered within a few days. Error reports are sometimes fixed before the reply goes out.
This site does not provide tax, labor, or medical consultation. For decisions about your specific circumstances, please consult a qualified professional.