Contact

Questions, corrections, and useful leads are welcome.

The clearest way to report an error or suggest an important update is through the public repository issue tracker.

Open a contact or correction issue

What to include

Tell us the page URL, describe the issue, and link to the current source where possible. For a calculation, include the assumption or step that appears incorrect. Do not include private financial, health, or account information.

What happens next

We review reports, verify the relevant source, and update the page when a correction is warranted. Material changes are reflected in the guide's update date. The site is static and does not currently offer a support inbox, account service, or real-time response guarantee.