if we forfeit amount overpaid from customer by debtor adjustment . the tax code is OS?
Generally, forfeit deposit is not consideration for any supply because it constitutes a compensation payment for damages due to non-performance of the contract or for breach of contract. However, in some circumstances, the deposit may still be a consideration for a supply.
An example would be where a contract involving accommodation of hotel room provides for the letting of a room whether it was occupied or not.