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Contact

Questions, corrections and commercial enquiries.

Last reviewed 21 August 2026

Get in touch

Email astecpublishing@gmail.com. We read everything, and we prioritise reported errors in calculations, tax thresholds and sources.

What we cannot help with

We cannot answer questions about your own mortgage, tell you how much a specific lender would lend you, or advise on whether to buy, fix, overpay or remortgage. We are not authorised to give financial advice. For advice, contact an FCA-regulated mortgage adviser; for free impartial guidance, MoneyHelper is a good starting point.

Reporting a problem with a calculator

Please include the calculator name, sample figures that do not identify you, the result you saw and the result you expected. A link to an official rule is helpful for a tax issue. Do not send account numbers, bank statements or identity documents.