If the current input tax amount of an enterprise is greater than the output tax amount, a tax deduction will be formed. When the tax allowance is used to deduct the value-added tax owed by the enterprise, there is no need to pay additional tax, because the tax allowance does not deduct the tax owed, but also deducts the output tax in the later period, thus reducing the value-added tax and additional tax that the enterprise should pay. However, in practice, it is necessary to consult the local taxation bureau first to see the requirements of the tax bureau.