# Tax Tokens Incorporating tax tokens necessitates a sophisticated approach due to their inherit incompatibility with Debita. This is where NFRs come into play. To ensure functionality, our NFR smart contracts should be exempted from taxes, allowing users to deposit their tokens without penalty and still be able to use them as collateral. **Transfer Restrictions of Receipt Tokens** To prevent tax-free token transfers between wallets, tax token NFRs transfers are restricted to Debita contracts only. This ensures compliance and maintains the integrity. --- # 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://docs.debita.org/receipts/tax-tokens.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.