Hello, there are the following methods to calculate 1) Value-added business tax = (current appraisal price-original invoice price) × about 5.3%. 2. Deed tax = current appraisal price ×3%. 3) Land value-added tax = value-added amount × value-added tax rate corresponding to value-added rate (3%-6%). Value-added amount = current appraisal price-original invoice price (1+5%× years)-value-added tax, loan interest, initial deed tax, maintenance fund, etc. Collection method: 3% of the total transaction amount is collected according to the benchmark tax rate, and 1% of the total transaction amount is paid if the buyer purchases an ordinary house with an area of less than 9 square meters for the first time, and 1.5% of the total transaction amount is paid if the buyer purchases an ordinary house with an area of more than 9 square meters for the first time.