There is no need to pay stamp duty for forensic consulting service contracts. The consulting contract belongs to the technical service contract, which is a contract in which the consulting organization provides consulting services for the client, and stamp duty is not required. The tax items of stamp duty include: loan contract, financial lease contract, sales contract, contract, construction project contract, transportation contract, technology contract, lease contract, warehousing contract, property insurance contract, property transfer document, business account book and securities transaction.