Contact
Found a bug, spotted a number that looks off, or want a calculator we don't have yet? We'd like to hear it.
The fastest way to reach us is by email at hello@plainsums.com. We read every message, though we can't always reply to each one.
Corrections
Accuracy matters to us, especially for money. If a calculation looks wrong, tell us which page you were using and what you expected. Please do not include financial inputs unless you choose to. A link to an official source is especially useful. Automated tests cover core formulas, but edge cases and source-data errors can still happen.
A note
We can't give personalized financial advice or recommend specific products. For decisions about your own money, please speak to a qualified, regulated professional. See our disclaimer for the full picture.