1. If the signature has not been confirmed on the VAT invoice comprehensive service platform, you can directly uncheck it and sign again after re-counting.
Two, if the signature has been confirmed, but not yet declared, you can cancel the declaration period of the check statistics, and re complete the check confirmation.
3. If it has been declared within the reporting period and meets the conditions of the tax refund period, the enterprise can click the "Tax Refund Period" button on the home page of the VAT invoice comprehensive service platform to realize the tax refund period. After returning, the month of the current tax period displayed on the platform is transferred to last month, and you can cancel the inspection statistics and complete the inspection and confirmation again.
The specific conditions of the tax refund period are as follows: (1) If the declaration of the previous period is cancelled or the platform does not receive the declaration result on the second day of the tax collection deadline, the tax payment period will be switched to the next period; (2) The declaration result of the tax to be refunded obtained by the platform from the collection and management is "undeclared"; (3) The period function of tax refund is only valid during the reporting period.