> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/salesforce-lightning/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-1.2.1/extend-the-salesforce-lightning-app/customizing-the-lightning-web-components/components/tax-certificate-component.md).

# Tax certificate component

The `drb2b_taxCertificateCheckout` component listens for events from the [`drb2b_buyerInfo` ](/salesforce-lightning/salesforce-lightning-b2b-commerce-app-1.2.1/extend-the-salesforce-lightning-app/customizing-the-lightning-web-components/components/buyer-info-component.md)component (or from the custom client implementation) and shows or hides the tax certificate button accordingly.