Uni 23-10-2013 – Guidance on duration of tax exemption, reduction and incentive for extension project

According to official letter No.3265/TCT-CS:

CIT preference eligible for tax exemption or reduction begins exemption or reduction from the first year with taxable income from the investment project enjoying tax preferences; in case, enterprises have no taxable income in the first three years since the first year having revenue from the investment project, the time of tax exemption or reduction is calculated from the fourth year.
The CIT preference like the newly-established enterprises from a new investment project only is applied to income from production and business activities meeting the conditions stated in the initial investment incentive certificate. Enterprises enjoying CIT under the industrial park project that generate additional imported goods which are not the products of the project in industrial production for sale are not eligible for CIT incentives for the income arising from the import operations. CIT taxable income must be separately recognized from the CIT preferential income under the regulations