Does the construction cost announced by Maoming tax department include tax?

It includes tax. Taxes and fees in the construction industry include value-added tax, business tax and personal income tax. Therefore, the construction cost announced by Maoming tax department is generally tax-included, that is, the corresponding taxes and fees have been included in the construction cost. If you want to compare the construction cost, you need to convert the price including tax into the price excluding tax, that is, the price including tax divided by 1, plus the tax rate. The specific tax rate depends on local policies and regulations, generally between 3% and 5%.