Property tax algorithm for buying and selling second-hand houses:

1. Deed tax: generally 1% of the house price (1% can be paid if the area is less than 9 square meters and it is the first suite, 1.5% if the area is more than 9 square meters and less than 144 square meters, and 4% if the area is more than 144 square meters)

2. Business tax: 5.56% if the real estate license is less than 5 years old.

Personal income tax:

In the real estate transaction tax, within 5 years for ordinary houses: {income from selling houses-total purchase amount-(business tax+urban construction tax+education surcharge+stamp duty) }× 2%; Ordinary residence for more than 5 years (inclusive) but less than 5 years: (sales revenue-total purchase amount-stamp duty) ×2%. Sale of public houses: within 5 years. (income from selling houses-economic housing price-land transfer fee-reasonable expenses) ×2%, in which economic housing price = construction area × 4, yuan/m2, and land transfer fee = 1,56 yuan/m2 ×1%× construction area. Personal income tax is exempted from housing transaction tax for ordinary houses for more than 5 years.

above content reference: Baidu encyclopedia-real estate transaction tax