Plain terms of use.

1. Not tax advice. Square Footing does arithmetic on the numbers you enter, following IRS Publication 587 and Publication 946 as summarized on the rules page. It does not know your full tax situation. Check the result with the publications or a tax professional before you file. You are responsible for what you file.
2. Accuracy. We work to keep the formulas right and update them when the IRS changes a figure, but the site is provided as it is, without a guarantee that it is free of errors. If you find one, tell us through weldonpc.com/contact and it will be fixed.
3. Your files. What you put in an office file is yours. Keep the private link safe: anyone with it can open and change the file, and we cannot recover a lost link. Files unopened for 400 days are deleted.
4. Fair use. Do not use the site to store anything unlawful, to attack it, or to make automated requests that burden it. Limits on how many files and changes an address can make are part of the service.
5. Prices. Prices are shown on the pricing page. During the preview nothing is charged. When payments start, renewing passes renew until cancelled; you can cancel at any time and keep the time already paid for.
6. Changes. These terms may change; the date of the current version is below.

Version of 2026-10-14. Square Footing is operated by WeldonPC.