2025 PIT finalization: what employers must prepare now

Each year, the personal income tax (PIT) finalization places a real administrative burden on employers. Getting it wrong is expensive — both in penalties and in employee trust. This guide walks through what to prepare and when.

Who must finalize

Employers finalize PIT on behalf of employees who authorize them and who earned income from a single source during the year. Employees with income from multiple sources, or who want to claim certain refunds, finalize directly.

Key deadlines

• Authorization letters collected from eligible employees early in the quarter.
• Employer finalization filed by the last day of the third month after year-end.
• Individual finalization has a separate, later deadline.

Documents to gather

Income records, dependent registrations, insurance contributions and any deduction evidence. Reconcile these against your payroll system before filing — mismatches are the single most common source of queries.

Common mistakes

Late dependent registration, double-counting income across sources, and missing insurance figures top the list. A disciplined reconciliation removes nearly all of them.

If you would rather not manage this in-house, our payroll team handles PIT finalization end-to-end for both Vietnamese and foreign staff.