Foreign employers in China frequently ask whether they must pay a “13th month salary.” The short answer is no — China has no statute that requires an extra month’s pay at year-end. What actually governs the question is your employment contract, your employee handbook, and any established company practice, which can create a legally binding obligation even where the law itself is silent. This guide explains the 13th month salary, how it differs from a year-end bonus, and how both are taxed in 2026.
- China has no legal requirement to pay a 13th month salary; the obligation arises from contract or consistent company practice.
- A 13th month salary is usually a fixed extra month of pay, while a year-end bonus is discretionary and performance-linked.
- The preferential “annual one-time bonus” IIT treatment has been extended through December 31, 2027.
- Bonuses and extra salary count toward the social insurance wage base, subject to contribution caps.
- An unfulfilled promise of a 13th month salary can trigger a labor dispute, so document it clearly.
- Statutory requirement: none — China does not mandate a 13th month salary.
- IIT brackets: comprehensive income is taxed progressively from 3% to 45%.
- Bonus policy: the annual one-time bonus separate calculation method is available through December 31, 2027.
- Social insurance: extra pay is included in the contribution base up to the city cap.
- Best practice: state any 13th month or bonus commitment explicitly in writing to avoid disputes.
Is a 13th Month Salary Mandatory in China?
No. Unlike some jurisdictions where a 13th or 14th month payment is a legal requirement, China’s labor laws do not oblige employers to pay an extra month’s salary. The practice is common in multinational companies and certain industries, but it is a contractual or customary benefit, not a statutory one.
That does not mean you can ignore it. If your employment contract promises a 13th month salary, or if your employee handbook or a written policy commits to one, that commitment becomes an enforceable part of the employment relationship. Likewise, if a company has paid a 13th month salary consistently for years, employees may argue that it has become an implied term of their employment. This is a central part of HR and payroll compliance in China, where written clarity is your strongest protection.
13th Month Salary vs Year-End Bonus: What’s the Difference?
Although the terms are often used interchangeably, they are legally distinct. A 13th month salary is typically a fixed amount — usually one month’s base salary — paid at year-end or in the run-up to Chinese New Year. Because it is framed as salary, it is generally treated as guaranteed once promised.
A year-end bonus, by contrast, is usually discretionary and tied to individual or company performance. Courts in China generally respect an employer’s discretion to decide bonus amounts when the bonus is expressly described as discretionary, but they will treat a fixed, promised 13th month payment as ordinary wages. The difference matters for both tax and termination: if you terminate an employee before the payment date, your obligation to pay a fixed 13th month amount may survive termination, whereas a discretionary bonus often does not. Reviewing your employment contract clauses up front is the cleanest way to avoid ambiguity.
How Are Bonuses Taxed in China?
Extra salary and bonuses are subject to China individual income tax (IIT). Under the standard rules, comprehensive income — wages, salaries, labor remuneration, and certain other items — is taxed on a progressive scale from 3% to 45%. An employer is responsible for withholding IIT from each month’s pay, including any bonus paid during the year. For the full picture of how foreign employees are taxed, see our guide to China individual income tax for foreign employees.
China also maintains a special rule for the “annual one-time bonus.” Under this preferential treatment, an employee who receives an annual one-time bonus can choose to have the bonus taxed under a separate calculation method rather than being merged into comprehensive income. This preferential policy, which can meaningfully reduce tax for larger bonuses, has been extended and remains available through December 31, 2027. The choice between the separate method and comprehensive-income treatment should be made with professional advice, because the better option depends on the employee’s total income level.
Do Bonuses Affect Social Insurance Contributions?
Yes, generally. In China, social insurance contributions — including pension, medical, unemployment, work injury, and maternity insurance, plus the housing fund — are calculated on an employee’s actual wage base, which normally includes regular salary, allowances, and bonuses. Each city sets minimum and maximum contribution bases, so extra pay increases contributions only up to the local cap.
For a foreign-owned company, this means a large year-end bonus can push an employee’s contribution base toward or above the cap, raising employer and employee contributions for that period. Understanding the mechanics of social insurance for foreign employees in China helps you budget the true cost of a bonus before you announce it.
Best Practices for Foreign Employers
First, put any 13th month or bonus commitment in writing. State clearly whether the payment is fixed or discretionary, what it is based on, and whether an employee must be employed on the payment date to receive it. Second, decide and document the tax treatment — whether the annual bonus will use the separate calculation method — before payment, so withholding is correct and consistent. Third, remember that bonus and extra pay obligations interact with other employment rules, including probation period rules and termination obligations, so a single consistent policy across the whole employment lifecycle is the safest approach.
For companies operating in Guangzhou, Shenzhen, Foshan, or Dongguan, local contribution caps and administrative practice vary, so working with a provider that understands your city’s rules keeps payroll accurate and dispute-free.
Frequently Asked Questions
Is a 13th month salary required by law in China?
No. China has no statutory 13th month salary. The obligation arises only if your contract, handbook, or consistent practice promises it.
What is the difference between a 13th month salary and a year-end bonus?
A 13th month salary is typically a fixed extra month of pay that becomes guaranteed once promised, while a year-end bonus is usually discretionary and tied to performance.
How is an annual bonus taxed in China?
Bonuses are subject to individual income tax at progressive rates of 3% to 45%. A preferential separate calculation method for the annual one-time bonus is available through December 31, 2027.
Do I have to include bonuses in social insurance contributions?
Generally yes. Social insurance and housing fund contributions are based on actual wages, including bonuses, up to the local minimum and maximum contribution caps.
Can I stop paying a 13th month salary once I have started?
Not without risk. If the payment has become a contractual or established practice, removing it can breach the contract and trigger a labor dispute. Consult a professional before changing the policy.
Disclaimer: This article provides general information about China's 13th month salary and year-end bonus practices as of 2026 and does not constitute legal, tax, or employment advice. Tax and social insurance rules vary by city and individual circumstance. Consult a qualified professional before making payroll or policy decisions.
