Obligation
Legal requirement
Frequency
Employment contract signing
Before or on the employee's first working day; probation contract must be separate or clearly delineated
Event-triggered
Internal Labour Regulations
Mandatory at 10+ employees; must be registered with the Authority within 10 days of issuance
Ongoing / updated
Social insurance registration
Employee registered with SHUI from the first month of employment; employer contributions due monthly
Monthly
Annual leave notification
Employer must notify employees of the annual leave schedule at least 15 days in advance
Annual
Probation confirmation
Written confirmation or non-confirmation required by end of probation (typically 30–60 days)
Event-triggered
Fixed-term renewal notice
Notify employee at least 30 days before a fixed-term contract expires; failure converts it to indefinite-term
Event-triggered
Disciplinary proceedings
Defined procedure: written notice, hearing within deadlines, written decision; time limits apply per violation type
Event-triggered
Termination notice period
Varies by contract: 45 days indefinite-term, 30 days fixed-term over 12 months, 3 days fixed-term under 12 months
Event-triggered
Employment certificate on departure
Written employment certificate (Xác nhận thôi việc) within 3 working days of employment ending
Event-triggered
Labour use report
Semi-annual report on headcount and changes to the provincial Labour Authority; due 31 May and 30 November
Semi-annual