What are the main taxes in Vietnam?

A: There are two major taxes in Vietnam, value-added tax and corporate income tax
 ① Value-added tax: Taxpayers should report and pay value-added tax on a monthly basis before the 20th day of the following month, or on a quarterly basis within the 30th day of the following month (for enterprises with average turnover not exceeding VND50 billion in the previous year).
 ②Corporate income tax: enterprises are required to make provisional payment of corporate income tax according to the estimated value every quarter. If the quarterly CIT is less than 80% of the year-end CIT liability, any difference in excess of 20% will be subject to interest on late payment (interest rate currently up to 11%/year) from the 4th quarter CIT payment deadline.
 The final corporate income tax return is filed annually. The annual corporate income tax return must be completed and filed no later than 90 days after the end of the fiscal year. The outstanding tax liability must be paid at the same time as mentioned above.