The taxable item "property ownership" listed in the Provisional Regulations on Stamp Duty includes "property right transfer certificate". State Taxation Administration of The People's Republic of China defines "enterprise equity" as "property ownership" in stamp duty. The above logic is: "enterprise equity-ownership of property rights-property rights transfer documents".
A partnership enterprise is not an enterprise in essence, and the partners exercise their rights in the partnership enterprise according to the share of capital contribution and the contract. Tax logic infers that the partner's share of capital contribution is not equal to the equity of the enterprise, and the transfer of the partner's share by the partner does not belong to the "certificate of property right transfer" listed in stamp duty. Accordingly, the partners do not need to pay stamp duty when transferring the shares of the partnership.
Stamp duty is levied according to the taxable items listed in the Regulations, that is, positive listing. It is natural that unlisted items are not subject to stamp duty according to law.