Terms of use

Last updated: 20 October 2026.

Free planning tools

You may use these calculators for personal or business planning without an account. They provide mathematical estimates based on the inputs you supply. You remain responsible for checking your inputs, the results and whether the assumptions fit your situation.

No professional service

PlainProfit does not provide individual accounting, tax, legal or investment advice. Results are not guarantees of sales, profit or returns. No calculator includes every possible cost or legal requirement.

Availability and errors

We aim to keep the site useful and accurate, but cannot promise uninterrupted availability or error-free calculations. Features and explanations may change as mistakes are corrected. Nothing in these terms is intended to remove rights that cannot lawfully be excluded.

Responsible use

Do not use the site to generate artificial traffic, manipulate advertising or disrupt access for others. Links to third-party resources are for reference and do not imply affiliation.

Read the privacy policy and methodology for more detail.