Key facts
Common practice
13th-month pay
but policy matters
Do not assume
Automatic entitlement
check the contract
Pay attention to
Tax timing
bonus is not regular pay
In Vietnam, a 13th-month bonus is often expected long before year end. That expectation is understandable, especially around Tet, but an expectation is not a calculation. The details belong in the contract and the employer's bonus policy.
For job seekers, this is one of the easiest offer terms to overlook. For employers, it is one of the quickest ways to create disappointment if the wording is vague.
Read the offer for three things
- Does the contract promise a 13th-month payment or only describe a discretionary bonus?
- Is the amount a full month's base salary, a proportion, or performance based?
- What happens if employment starts or ends part way through the year?
Why Tet timing is not the whole story
A payment made around Tet may be called a Tet bonus, a 13th-month salary or an annual performance award. Those labels are not interchangeable. A clear policy should explain eligibility, timing, proration and the salary basis used. That is far more useful than relying on a recruiting promise made verbally.
Plan for net, not just gross
A large one-off bonus can make the payroll line look different from an ordinary month. Treat it as a separate scenario in your take-home planning, especially if you have dependants or other deductions. The useful question is how much cash arrives and what is guaranteed, not whether the gross amount sounds like an extra salary.
A better candidate question
Ask: “Is the 13th-month payment contractual, what salary basis is used, and how is it prorated for a partial year?” The answer reveals more than a generic statement that the company pays a Tet bonus.
For employers: make the promise usable
A clear policy answers four questions in one place: who is eligible, what pay is used as the base, how partial service is handled and when payment is made. That protects candidates from a vague expectation and protects HR from having to interpret informal recruiting language at year end. If the payment is discretionary, say so plainly rather than using contractual language by accident.
The answer in one line
A 13th-month payment is common in Vietnam, especially around Tết, but the legal and financial answer depends on the employment contract and the employer's bonus policy. Do not assume that a culturally common practice is an identical entitlement at every employer.
A useful offer says whether the payment is contractual, the pay base used, the partial-year method and the date it is paid. If those terms are not written down, a candidate should treat a verbal reference to a “Tết bonus” as incomplete information rather than guaranteed annual income.
A simple contract-reading checklist
Focus on the wording, not only the label. “13th month”, “annual bonus” and “Tết bonus” can describe different arrangements.
- Guaranteed: the contract specifies the amount or formula.
- Proportional: the policy explains partial service and leavers.
- Performance based: the measure and decision process are clear.
- Discretionary: it should not be used to inflate fixed annual pay in an offer comparison.
Price a bonus separately from monthly salary
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Frequently asked questions
Is a 13th-month bonus mandatory in Vietnam?
It is common, but the entitlement and calculation should be checked against the employment contract, company rules, collective agreement and current labour rules. Do not assume every employer uses the same structure.
Is a 13th-month bonus the same as Tet bonus?
They are often discussed together, but company practice varies. Read the policy to see whether they are the same payment, separate payments or a performance-linked bonus.
Does a bonus change take-home pay?
It can. A bonus paid through payroll may affect the tax calculation for that period or year. Model it separately from recurring monthly salary.
Is a 13th-month bonus different from severance pay?
Completely. A 13th-month bonus is an annual payment tied to continued employment, usually paid around Tet. Severance (trợ cấp thôi việc or trợ cấp mất việc làm) is a one-time payment tied to the employment ending, with its own separate formulas.
Do part-year employees get a prorated 13th-month bonus?
It depends entirely on the company's written policy. Some prorate by months worked in the calendar year, others require a full year of service, and some treat it as fully discretionary regardless of tenure. Check the policy rather than assuming.
How does a 13th-month bonus interact with social insurance?
Bonus payments are generally treated differently from regular salary for social insurance contribution purposes, since the mandatory insurance base is usually tied to the salary stated in the labor contract, not one-off bonus payments. Confirm this with payroll rather than assuming the bonus increases your insurance contribution base.
Related tools and reading
General information only. Check current official guidance and obtain professional advice for a decision affecting your tax, employment or immigration position.