On February 27, 2019, Hanoi City Tax Department issued Official Letter No. 7623/CT-TTHT on the corporate income tax policy which set out criteria for enterprises to determine deductible expenses.
Accordingly, Official Letter No. 7623/CT-TTHT provides guidelines for determining deductible expenses, after reporting to the General Department of Taxation, specifically:
Article 6, Circular No. 119/2016/TT-BTC, Amending and supplementing Circular No. 78/2014/TT-BTC dated June 18, 2014 of the Ministry of Finance guiding the implementation of Decree No. 218/2013/ND-CP dated December 26, 2013 of the Government stipulates and guides the implementation of the Law on Enterprise Income Tax as follows:
Enterprises may deduct all expenses if they meet the following conditions:
a)Actual expenses arising related to production and business activities of enterprises; 
b)Expenses with sufficient legal invoices and vouchers as prescribed by law. 
c)Expenses for invoices of goods and services each time valued at VND 20 million or more (price inclusive of VAT) when payment must have non-cash payment documents. 
The promulgation of Official Letter No. 7623/CT-TTHT of Hanoi Tax Department shows that this is a regular activity of the agency, in order to support enterprises in solving problems and applying the law consistently tax.