legal ground
Article 2 of the Provisional Regulations of People's Republic of China (PRC) on Value-added Tax.
VAT rate:
(1) Unless otherwise specified in items 2, 4 and 5 of this article, the tax rate of taxpayers selling goods, services, tangible movable property leasing services or imported goods is 17%.
Article 4
Except as provided in Article 11 of these Regulations, the taxable amount of taxpayers selling goods, labor services, services, intangible assets and real estate (hereinafter referred to as taxable sales) is the balance after deducting the current input tax from the current output tax. Calculation formula of tax payable: tax payable = current output tax-current input tax. If the current output tax is less than the current input tax, the insufficient amount can be carried forward to the next period for further deduction.
Article 5
Where a taxpayer conducts taxable sales, the value-added tax levied shall be calculated according to the sales amount and the tax rate stipulated in Article 2 of these Regulations, which is the output tax. Output tax calculation formula: output tax = sales amount × tax rate.