Employment Contracts in Thailand.

The contract sits on top of a statutory floor

A Thai employment contract does not operate on a blank page. The Labour Protection Act sets minimum standards that apply whatever the document says, and a clause that drops below them does not become valid because both sides signed it.

That floor covers the basics: normal working time not exceeding eight hours a day, overtime on a working day at not less than one and a half times the hourly wage rate, overtime on a holiday at not less than three times, and annual holidays of not less than six working days after a year of service.

So the useful question when reviewing a contract is not whether it looks reasonable, but where it sits relative to the statutory minimum and what it adds above it. Terms that improve on the floor are enforceable; terms that undercut it are not.

The clauses that cause trouble later

Probation is the first. Because a probationary contract is treated as an indefinite contract, calling a period probation does not switch off notice, and once someone passes 120 days of service the statutory severance schedule starts to apply. Contracts that assume probation means free dismissal create the dispute they were meant to avoid.

Fixed-term wording is the second. Genuine fixed-term employment escapes severance only in a narrow case: a specific project outside the employer's normal trade, with a definite start and end. Labelling ordinary rolling work as fixed-term does not meet that test, and the entitlement survives.

The third is what counts as wages. Allowances, commissions, and bonuses are where severance and overtime calculations are won and lost later, so it pays to define them clearly at the start rather than argue about them at the exit.

For foreign employees, the contract also has to line up with the work permit and visa position, since the permitted role and employer are tied together. That coordination usually runs alongside immigration law advice, and the employment side sits under employment and labor law.

This page is general information, not legal advice. For a specific contract or hiring situation, speak with a qualified professional.