19/06/2026
Legal & Business Insights – Tax Treatment of Labour Outsourcing Expenses (Vietnam)
The issuance of Official Letter 3705/CT-CS on 5 June 2026 reinforces a strict and increasingly enforced principle in Vietnamese tax practice: the tax deductibility of expenses is contingent upon the legal validity of the underlying business activity.
From a corporate tax perspective, companies’ payments for outsourced labour services may be denied input Value Added Tax (“VAT”) credit and disallowed for Corporate Income Tax (“CIT”) purposes where the service provider is not duly licensed or operates beyond its registered business scope in relation to labour outsourcing services - a conditional business line under Vietnamese laws. This reflects a clear substance-over-form approach, whereby the Vietnamese tax authorities may re-characterize any contractual arrangement based on actual operational control rather than its legal form.
In practice, this imposes a heightened compliance burden on companies, which must conduct due diligence on outsourced labour providers not only from a commercial perspective but also from a regulatory licensing standpoint. Failure to do so may expose companies to significant VAT and CIT risks, including tax reassessments, penalties, and late payment interest.
Companies engaging outsourced labour services in Vietnam should ensure that either (i) the service provider holds a valid labour outsourcing license(s), or (ii) the arrangement is properly structured as a genuine, output-based services contract. Otherwise, the tax positions may be highly vulnerable.