Contact Us
Report an error, ask about a calculation or suggest a new tool.
- Operated byMAFHH INTERNATIONAL LTD
- Last updated27 October 2026
- CoversAustralian Privacy Principles
Calculator errors
Reported errors are re-tested first.
Methodology
Ask how any figure is worked out.
New tools
Suggest a calculator you need.
Privacy requests
Access, correction or a complaint.
How to reach us
Report a calculator error
Tell us the calculator, the inputs you used, the result you got and what you expected. Errors are checked first.
Ask how a result is worked out
We can explain the formula, rate table and official source behind any figure.
Suggest a new calculator
Missing a state, a rule or a tool? Let us know what you need.
Privacy requests and complaints
Access, correction or a privacy complaint under the Australian Privacy Principles.
General and business enquiries: [email protected]
Operator: MAFHH INTERNATIONAL LTD, registered in England and Wales, company number 13215122
Preferred contact: email
Response time: within 2 business days (Australian Eastern Time). Calculator error reports are prioritised.
What we cannot help with
We cannot give personal financial, tax, credit or legal advice, review your loan application, lodge returns or tell you which product to choose. For that, use a licensed adviser (Moneysmart’s guide to choosing a licensed adviser) or a registered tax agent (check the Tax Practitioners Board register). For free, independent help with money worries, call the National Debt Helpline on 1800 007 007.
Please do not send us your Tax File Number, bank details, Medicare number or copies of identity documents.
Frequently asked questions
How quickly will you reply?
We aim to reply within 2 business days, Australian Eastern Time. Reports of calculator errors are reviewed first.
I think a calculator is wrong. What should I send?
Send the calculator name or link, the exact inputs, the result shown and the figure you expected along with its source. This lets us reproduce and fix the issue quickly.
Can you tell me if I should refinance or buy?
No. We provide general information only and are not licensed to give personal advice. A licensed financial adviser or credit professional can help with your situation.