Stamp duty is a behavioral tax, and flood control and security funds are government funds.

1. Stamp tax is deducted at 3/10,000 of the purchase and sale contract. The "Regulations" stipulate that the payment period is when the contract is signed. However, the tax can be assessed and levied according to the document provisions, that is: based on the sales revenue and the material purchase amount, according to a certain proportion of 10,000.

Three-quarter rate discount (calculated payment).

The specific competent local tax bureau will inform you of the proportion and payment deadline in the "Stamp Duty Assessment Notice".

2. The flood control and security fund is the water conservancy construction fund stipulated by the State Council. In the Yangtze River Basin, it is called "flood control and security fund". It is a government fund that is levied by local taxes. In places with stricter management, it is based on monthly sales revenue.

The payment is calculated based on the prescribed collection rate (your provincial government stipulates that it is one thousandth). Areas with lax management are not required to collect monthly, but quarterly at most. Some still pay twice in June and December, and

You pay according to the requirements of the local tax bureau. As long as the local tax bureau completes its tasks, it will never be enough.

The above responses are for reference only.

For specific procedures, please consult directly with your supervisor or local tax authority.