Foreign contractor tax (FCT) in Vietnam is a withholding tax applied to transactions conducted in Vietnam between a foreign person and a Vietnamese company. FCT incorporates two tax components: value added tax (VAT) and personal income tax (PIT) or corporate income tax (CIT), applicable to most foreign contractors registered as organizations. Foreign Contractor Tax in Vietnam applies if business is conducted in Vietnam pursuant to a contract signed between a foreign contractor and a Vietnamese counterparty.
Source: vietnam-briefing.com