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Amend a signed contract

Labour contract appendix template

For changing the pay, position, location or benefits of a contract in force. The appendix states the amended terms and effective date; it cannot change the contract term.

References the originalRecords the contract number, signing date and the amended clauses.Clear effective dateStates when the new terms apply; all other terms stay the same.Within legal limitsReminds you that an appendix cannot change the term of a signed contract (Article 22).

Choose an industry to add clauses specific to it.

Labour contract appendix

Labour Code 2019, Article 22

Amends or supplements part of a labour contract that is in force.

3 clauses

Indefinite-term labour contract

Labour Code 2019, Article 20(1)(a)

For stable, long-term positions where neither party sets an end date.

9 clauses

Fixed-term labour contract

Labour Code 2019, Article 20(1)(b)

Has a specific end date, lasts up to 36 months and can be renewed only once.

9 clauses

Probation contract

Labour Code 2019, Articles 24 to 27

A probation agreement before the official contract, with pay of at least 85% of the job's salary.

8 clauses

Labour contract under 12 months

Labour Code 2019, Article 20(1)(b)

For temporary, seasonal or specific work lasting less than a year.

9 clauses

Freelance collaborator contract

Civil Code 2015, Article 513 on service contracts

Task-based collaboration, not an employment relationship unless there is management and supervision.

6 clauses

Piecework contract

Civil Code 2015, Article 542 on processing contracts

Assigns a full scope of work, paid according to the accepted results.

5 clauses

Service contract

Civil Code 2015, Articles 513 to 521

The provider performs services for the client and receives a service fee.

5 clauses

Internship contract

Labour Code 2019 and the training institution's internship rules

Hosts student interns, with or without financial support.

6 clauses

Vocational training contract

Labour Code 2019, Articles 61 to 62

The company pays for training and the trainee commits to working after the course.

5 clauses

Part-time labour contract

Labour Code 2019, Article 32

Fewer hours than normal working time, with entitlements in proportion to the hours actually worked.

9 clauses

Remote work labour contract

Labour Code 2019, Articles 21 and 105

The employee works mainly away from the office, with rules on equipment, connectivity and security.

10 clauses

Labour contract with a foreign employee

Labour Code 2019, Articles 151 to 157

For foreign nationals working in Vietnam, with the term tied to the work permit.

10 clauses

Domestic worker labour contract

Labour Code 2019, Articles 161 to 165

A household hires a domestic worker, with specific rules on rest, board and insurance paid with wages.

7 clauses

Labour contract with an executive

Labour Code 2019 and Law on Enterprises 2020

Signed with directors and department heads, with clauses on authority, income and confidentiality.

10 clauses

Consulting contract

Civil Code 2015, Articles 513 to 521

An expert advises within an agreed scope for a consulting fee, outside an employment relationship.

7 clauses

Non-disclosure agreement

Labour Code 2019, Article 21(2)

Signed with the labour contract to protect trade secrets, customer data and technology.

6 clauses

Labour contract termination agreement

Labour Code 2019, Article 34(3)

Both parties agree to end the contract and settle the last day, payments and handover.

6 clauses
See all 18 contract templates
Guide

Labour contract appendix: what it can change and what it cannot

8 sectionsAbout 4 min readUpdated 01/10/2026

A labour contract appendix (phụ lục hợp đồng lao động) is the simplest way to change a salary or a job title, or to add a place of work, without re-signing the whole contract. It is also a document that is often misused: the contract term is extended through an appendix, the appendix is printed in advance and simply handed to the employee to sign, or the number of the original contract is left out. This article sets out what an appendix may change under Article 22 of the Labour Code 2019 (Bộ luật Lao động 2019) and what to check before signing.

What a labour contract appendix is and what legal weight it carries

Under Article 22 of the Labour Code 2019, an appendix forms part of the labour contract and has the same effect as the contract. An appendix does one of two things: it sets out the detail of a term the contract already contains, such as a sales employee's targets and commission formula, or it amends or supplements a term already signed, such as the salary, department or place of work. Because it is part of the contract, an appendix must be signed by both parties and kept with the original contract; a pay rise notice from HR or an email confirming a change of department cannot take its place.

What an appendix can and cannot change

What you want to changeAppendix allowedThe right way to do it
Salary, allowancesAppendix allowedYesThe right way to do itState the old amount, the new amount and the effective date
Job title, departmentAppendix allowedYesThe right way to do itAttach a new job description if the duties change completely
Place of workAppendix allowedYesThe right way to do itGive the exact address; if there are several locations, list them all
Working hours, shift patternAppendix allowedYesThe right way to do itWithin the limits of 8 hours a day and 48 hours a week
Contract termAppendix allowedNoThe right way to do itProhibited by Article 22; to keep working, sign a new contract
Type of contractAppendix allowedNoThe right way to do itChange the type by signing a new contract

When to sign an appendix and when a new contract is needed

Sign an appendix when the original contract is still in force and only a few terms change: a payments accountant whose salary rises from 12 million to 13.5 million VND after a performance review, a marketing specialist moving from the Hanoi branch to the Ho Chi Minh City office, a technician promoted to team leader with a responsibility allowance. Sign a new contract when the contract has expired, when the type of contract changes, or when the same person already has three or four overlapping appendices; consolidating them into one new contract makes the file easier to check during an inspection or when insurance contributions are reconciled.

What an appendix must state to avoid being misread

A complete appendix has four parts: a reference to the original contract by number and signing date; the amended terms, written as pairs of old and new; the effective date; and a statement that all other terms remain unchanged. The template on Việc Hot follows exactly this order in three articles: grounds for the amendment, amended and supplementary terms, and entry into effect.

A salary amendment clause written the right way

Article 1. The two parties agree to amend Article 4 of Labour Contract No. 027/2025/HDLD signed on 3 March 2025 as follows: old salary 12,000,000 VND/month; new salary 13,500,000 VND/month, applicable from the October 2026 pay period.

Article 2. This appendix takes effect from 1 October 2026 and forms an integral part of the labour contract. All other terms of the contract remain unchanged.

Write both the old and the new amount, so that anyone reading the appendix later does not have to dig out the original contract, and so that if the old amount is wrong, both sides notice it at the moment of signing.

What employees should check before signing an appendix

  • The contract number and signing date on the appendix match the copy of the contract you hold.
  • The new salary is not lower than the old one; if it is lower, there must be a reason, and you have the right not to sign.
  • The effective date is clear and is not backdated to your disadvantage.
  • The appendix contains no "extension" and no new end date; if it does, ask for a new contract instead.
  • You receive a copy bearing the company's signature and seal.

Common employer mistakes with contract appendices

The most common is using an appendix to "extend by another 12 months"; in a dispute, the extension is not recognised and the employment relationship may be treated as having become indefinite-term. The second is raising pay through an appendix without adjusting the social insurance contribution, which leads to the shortfall being collected retrospectively. The third is appendices with no number and no effective date, with so many overlapping versions that HR no longer knows the current salary. To prevent this, give each appendix a sequence number, change one group of terms at a time and file it next to the original contract.

Drafting a labour contract appendix on Việc Hot

  1. Choose the appendix template and the industry

    Choose an industry so that the template gains industry-specific clauses: sales gets targets and commission, IT gets ownership of source code.

  2. Fill in both parties and the amended terms

    Enter the original contract number, job title, place of work and new salary. Turn on "View by role" to read the notes for each side.

  3. Check, then print or save

    The "Notes and checks" tab flags any fields that are still empty. The printed copy contains no notes; the appendix is saved in your account.

Frequently asked questions

An appendix needs the signatures of the legal representative or an authorised person and of the employee. If the business uses a seal, it stamps the appendix just as it did the original contract.

No. Article 22 of the Labour Code 2019 does not allow an appendix to change the contract term. If you want to keep working after the term ends, sign a new contract within 30 days.

The law sets no limit. Once there are many overlapping appendices, the two sides should sign a new contract to replace them so that everything is easy to check.

The original contract remains in force at the old salary. The company may not cut pay on its own without an appendix signed by both sides.

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