> For the complete documentation index, see [llms.txt](https://help.commercenavigator.com/0/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.commercenavigator.com/0/extras.md).

# Extras

- [Tax ID Numbers](https://help.commercenavigator.com/0/extras/tax-id-numbers.md): This might be the most boring topic in CommerceNavigator history, but in case you need the low down on Tax ID numbers, we've got the context in plain English here.
- [More About Plaid](https://help.commercenavigator.com/0/extras/more-about-plaid.md): Learn more about Plaid, a partner we use to securely sync your bank transactions to CommerceNavigator.