Tax-related departments or tax bureaus of real estate transactions. Specifically, the tax-related departments or tax bureaus of real estate transactions are responsible for providing and managing. When filling in the declaration form, accurate and complete information should be provided in accordance with relevant regulations and requirements to ensure that the tax authorities can correctly calculate and collect relevant taxes and fees. Incremental housing transaction refers to the new housing transaction in the market, that is, the house that the owner has not traded before. These houses are usually newly built or second-hand houses, which are sold by developers or homeowners.