# Fee-on-Transfer Token Support

Some tokens (often called "reflection" or "rebase" tokens) charge a fee on every transfer. For example, transferring 100 tokens might result in the recipient receiving only 99 tokens, with 1 token burned or redistributed.

The wrapper handles these tokens correctly:

1. Records balance before transfer
2. Executes the transfer
3. Records balance after transfer
4. Mints cTokens based on the **actual received amount**, not the requested amount

Example with 1% fee-on-transfer token:

* You call `wrap(1000)`
* Wrapper receives 990 tokens (1% was burned during transfer)
* Wrapper mints 990 cTokens (based on actual receipt)
* Your fee is paid separately on top of this

This ensures you always receive the correct amount of cTokens matching what the wrapper actually holds.


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