On September 30th, 2021, Hanoi Tax Department issued Official Letter No. 37175/CTHN-TTHT, thereby:
The total temporary payment CIT amount for the first 03 quarters of the tax year must not be less than 75% of the payable CIT amount according to the annual finalization. If In case taxpayers fail to make a full payment for the temporarily payable tax amount of the first 03 quarters of the year, they will have to pay a late payment interest which is calculated on the underpaid tax amount from the following day of the last day in the third quarter CIT temporary payment deadline to the date of fulfilling the remaining payment to the State fund.