If you're planning to work, run a business, or stay in Cambodia long-term, you'll generally need to apply for an EB (Business) Extension of Stay (EOS) after entering the country with an Ordinary (E-Class) Visa.
The exact documents required can vary depending on your employment status, the length of the extension requested, and current immigration policies. Preparing your paperwork in advance can help avoid delays.
EB Extension Document Checklist
| Document | Required | Notes |
|---|---|---|
| Valid Passport | ✅ | Should generally have at least 6 months' validity remaining. |
| Ordinary (E-Class) Visa | ✅ | You must have entered Cambodia using an Ordinary (E-Class) Visa. |
| Completed Extension Application | ✅ | Available through the General Department of Immigration (GDI) or your visa agent. |
| Passport-size Photo | Usually Required | Bring recent passport-style photos in case they are requested. |
| Current Cambodian Address | ✅ | Hotel, rental agreement, or employer's address. |
| Employment Letter | Usually Required | Issued by your Cambodian employer, confirming your position and employment. |
| Employment Contract | May Be Required | Particularly for longer EB extensions. |
| Company Patent Tax Certificate | Often Required | Copy of the employer's valid business patent/tax registration. |
| Work Permit / Employment Card | May Be Required* | Commonly required for 6- and 12-month EB extensions where applicable under labour regulations. |
| Supporting Business Documents | If Applicable | For company owners or self-employed applicants. |
*The exact documentation depends on your individual circumstances and current immigration and labour requirements.
Documents by Applicant Type
Employees
Most employed applicants should expect to prepare:
- Valid passport
- Ordinary (E-Class) Visa
- Passport photo
- Employment letter
- Employment contract (if requested)
- Employer's Patent Tax Certificate
- Work Permit (where required)
Business Owners
Business owners may be asked for:
- Passport
- Ordinary (E-Class) Visa
- Business registration documents
- Patent Tax Certificate
- Company ownership documents
- Supporting business records
Self-Employed Professionals
Depending on your circumstances, immigration authorities may request documentation demonstrating your business activities, registration, or professional work.
Requirements may differ from those for employees.
Work Permit Requirements
Many applicants confuse the EB Extension with a Work Permit.
They are not the same.
| Document | Purpose |
| EB Extension | Immigration permission to remain in Cambodia for business or employment purposes |
| Work Permit | Labour authorization allowing eligible foreign nationals to work legally in Cambodia |
For many employed foreigners, both are required.
Before You Apply
Check that:
- ✅ Passport is valid for at least six months.
- ✅ Your current stay has not expired.
- ✅ Your employment documents are current.
- ✅ Your employer's Patent Tax Certificate is valid.
- ✅ Your Work Permit (if required) has been obtained or renewed.
Applying before your current permission to stay expires can help avoid overstay penalties.
Common Reasons for Delays
Applications may be delayed if:
- Employment letter is incomplete.
- Passport validity is too short.
- Business documents are outdated.
- Employer information is inconsistent.
- Required supporting documents are missing.
- Work permit documentation is incomplete when required.
Frequently Asked Questions
Is an employment letter always required?
For many employment-based EB Extension applications, yes. The exact supporting documents depend on your employment or business circumstances.
Do I need a Work Permit?
If Cambodian labour law requires a Work Permit for your employment, you will generally need one in addition to your EB Extension. Immigration status and work authorization are separate legal requirements.
Can I apply without a company?
Requirements differ for self-employed individuals, investors, and business owners. Supporting business documentation may be requested instead of an employer's documents.
How early should I apply?
Start preparing your documents several weeks before your current stay expires to allow time to obtain any employer or company paperwork.
Quick Checklist
Before visiting immigration or your visa agent, make sure you have:
- □ Passport
- □ Ordinary (E-Class) Visa
- □ Passport photo(s)
- □ Completed application form
- □ Employment letter (if applicable)
- □ Employment contract (if applicable)
- □ Company Patent Tax Certificate
- □ Work Permit (where required)
- □ Current Cambodian address
- □ Additional business documents (if self-employed or a business owner)
Official Resources
- General Department of Immigration (GDI): https://immigration.gov.kh/public/
- Official Cambodia eVisa: https://www.evisa.gov.kh
- Official Cambodia e-Arrival: https://portal.arrival.gov.kh
- Ministry of Labour and Vocational Training (MLVT): https://www.mlvt.gov.kh
TravelKH Tip
Before submitting your EB Extension application, ask your employer or visa agent for a document checklist based on your specific situation. Requirements can differ for employees, company directors, investors, freelancers, and business owners, and they may be updated by the authorities from time to time.
TravelKH Disclaimer
TravelKH provides this guide for general informational purposes only. Cambodia's visa requirements, EB Extension procedures, documentary requirements, labour regulations, fees, and immigration policies may change without prior notice.
The documents required for an EB Extension depend on the applicant's individual circumstances and the latest requirements of the Cambodian authorities. Approval of any visa or extension is entirely at the discretion of the competent immigration authorities.
Before applying, always verify the latest requirements with:
- General Department of Immigration (GDI)
- Ministry of Labour and Vocational Training (MLVT)
- Official Cambodia eVisa website
- Official Cambodia e-Arrival portal
- Nearest Cambodian Embassy or Consulate
TravelKH is an independent travel information website and is not affiliated with or endorsed by the Royal Government of Cambodia. We are not a visa agency and cannot guarantee visa or EB Extension approval.
