If you have a question, comment, or suggestion, please send me a message – I'd love to hear from you.
If you find an issue with any of the spreadsheets, provide as much detail as possible below. If we confirm the error, we'll resolve the problem and post a future version to the download page and notify all users.
Subscribe to my occasional newsletter and receive a blog update, a money Q&A post, or notification of updates to spreadsheets.