Turnover tax is calculated, declared and paid quarterly as follows:
a) for quarters I to III, on or before the 25th day of the month following the quarter for which payment is made;
b) for the fourth quarter, on or before 25 March of the following year.
For the purposes of determining the taxable result, turnover tax is a non-deductible expense.
Turnover tax shall be calculated cumulatively from the beginning of the tax year. The quarterly turnover tax due is determined as the difference between the cumulative turnover tax calculated from the beginning of the tax year and the turnover tax due for the period preceding the calculation period.