# Sales Tax It's a legal requirement for us to collect state and local sales tax for items purchased in your marketplace that are shipped to certain delivery addresses. District calculates and remits sales tax on your behalf as a seller. Note: If you have a valid State Sales Tax Exemption Certificate, please reach out to to process your sales tax exemption on future purchases. Be sure to include: * Your District username * Photo ID * Proper state sales tax exemption form --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.district.net/selling/selling-faq/sales-tax.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.