Social Insurance for Foreign Workers in China: The Bilate…
TL;DR (30-second version)
If you are German, Korean, or Japanese and working in China, your home country has a social security agreement with China — which means you probably pay into one system, not two, and some years count for both. The practical task: get a certificate of coverage from your home authority before or soon after starting work, give it to your employer, and ask the local social insurance office to apply the exemption. It saves money every month you work here.
The short answer
Social insurance agreements prevent double payment for citizens of certain countries. You contribute where you are posted, or where you are covered, depending on the agreement — not both — and the certificate is the key document.
Which countries have agreements
China has signed social security agreements with a set of countries, with the best-known to expats being Germany, South Korea, and Japan. Others exist; the list can change, and coverage scope (pensions, unemployment) differs per treaty. Always check the current official list for your nationality — this is exactly the kind of thing that gets quietly amended.
How the system works in practice
| Step | Who does it | What happens |
|---|---|---|
| 1. Certificate of coverage | You, from your home social security authority | Form proving you already contribute at home |
| 2. Give it to the employer | You | Your company files it with local social insurance |
| 3. Exemption applied | Local office | You skip the duplicate pension/social contributions in China |
| 4. Years preserved | Both systems | Some periods count toward home-country eligibility under the agreement |
Why it matters to your paycheck
China’s social insurance deduction on your gross salary is a real percentage; if you are also paying mandatory contributions at home, the double coverage is expensive. The agreement converts that double payment into paperwork. The catch: the certificate must be obtained periodically (often annual), and your home authority issues it — which means planning ahead by a few weeks.
Three mistakes people make
- Waiting until renewal time. Get the certificate when you start; renewing late means a temporary double deduction.
- Letting payroll “handle it.” Payroll handles the filing, but the certificate is yours to chase. Nobody will get it for you.
- Assuming the exemption covers everything. The agreement usually exempts specific categories, not all contributions — medical insurance behavior differs from pensions. Read your country’s summary sheet.
Quick answers
Q: I am not from Germany, Korea, or Japan — am I exempt? A: Possibly — the list is longer than three countries. Check the official agreement registry for your nationality.
Q: Who do I ask at home? A: Your home country’s social security agency (e.g., the Deutsche Rentenversicherung, Korea’s National Pension Service, Japan’s pension office). Their expat desks know this exact certificate.
Q: Do the years transfer to my home pension? A: Under the agreements, certain covered periods can count toward home eligibility. That is the “totalization” part — it is real, and it is paperwork.
Heads up: this is general information to help you plan, not tax, pension, or legal advice. Treat the treaty list as moving and confirm everything with official sources. See our full disclaimer.
Editorial review: EasternReset Team · Snapshot: 2026-09. Found an error? Email us.