Thailand Immigration 2026: A Complete Guide Before You Arrive
You’ve booked your flights to Thailand, packed your bags, and you’re ready for an adventure. But wait — do you know which immigration office to visit? What documents do you need before stepping on that plane? Thailand immigration rules change frequently, and getting it wrong can mean denied entry or wasted hours at the wrong office. Let me walk you through everything you need to know before you arrive.
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Before You Fly: What to Prepare
Before you even board your flights to Thailand, here’s your checklist:
Passport Validity
- ✅ Your passport must be valid for at least 6 months from your date of entry
- ✅ At least 2 blank pages for entry/exit stamps
- ✅ No damage to the passport (tears, water damage = rejection risk)
Visa or Visa Exemption?
Thailand offers visa-free entry to citizens of over 60 countries including the US, UK, Australia, most of Europe, Japan, South Korea, Russia, and China. The standard stay is up to 60 days. If your country is not on the exemption list, you will need to apply for a visa through the Thailand e-Visa official website: thaievisa.go.th before you travel.
TM6 Digital Arrival Card
- 📱 Fill out the TM6 Digital Arrival Card online before departure
- ✅ QR code will be sent to your email – show it at immigration
- ❌ No more paper forms since 2025
Proof of Funds
- 💰 You may be asked to show at least 10,000 THB per person (or equivalent)
- 🏨 Confirmed hotel booking or host invitation letter
- ✈️ Return or onward flight ticket within your permitted stay
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Where Are Thailand Immigration Offices?
Thailand immigration is managed by the Immigration Bureau. There are immigration offices in every province, but here are the main ones you need to know:
Head Office – Government Center B (Chaeng Watthana)
- 📍 Location: 120 Moo 3, Chaeng Watthana Road, Lak Si, Bangkok 10210
- 📞 Phone: 1178 (hotline) or +66 2572 8500
- 🕐 Hours: Monday-Friday, 8:30 AM – 4:30 PM
- 🚇 BTS: Stop at Wat Phra Sri Mahathat station, then taxi
- 📝 Services: Visa extensions, 90-day reports, re-entry permits, residency certificates
Suvarnabhumi Airport Immigration (BKK)
- 📍 Located on Arrivals Floor (3rd Floor) and Departures (4th Floor)
- 📝 Services: Arrival/departure stamps, visa on arrival, re-entry permits
- ⚠️ Airport immigration does NOT handle visa extensions or 90-day reports
Don Mueang Airport Immigration (DMK)
- 📍 Terminal 1, 2nd Floor (International Arrivals)
- 📝 Services: Arrival/departure stamps, visa on arrival
Major Provincial Offices
| Office | Address | Service Area |
|---|---|---|
| 📍 Bangkok (Muang Thong Thani) | Popular Road, Pak Kret, Nonthaburi | Bangkok and Nonthaburi |
| 📍 Chiang Mai | Mae Rim-Samoeng Road, Mae Rim | Chiang Mai and North |
| 📍 Phuket | Phuket Town, near Provincial Hall | All Phuket, Krabi, Phang Nga |
| 📍 Pattaya (Chonburi) | Soi 5, Jomtien Beach Road | Chonburi and Eastern seaboard |
| 📍 Samui (Surat Thani) | Ban Lamai, Koh Samui | Samui and surrounding islands |
| 📍 Hat Yai (Songkhla) | Klong Rang Road, Hat Yai | South Thailand / Malaysia border |
Key Facts – What Each Office Can Do
- 🏛️ Chaeng Watthana HQ – All services (extensions, 90-day, re-entry, residency)
- 🛫 Airports – Entry/exit only + visa on arrival
- 🏙️ Provincial offices – 90-day reports, certain extensions
- 🌐 Online – 90-day reports via TM47 portal (tm47.immigration.go.th)
- 💻 E-Extension – New online extension system at thaiextension.vfsevisa.com (select visa types)
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Step-by-Step: Arriving at Thailand Immigration
At the Airport
- Fill out TM6 Digital Arrival Card (online, before landing)
- Proceed to immigration counters – follow Foreign Passport signs
- Have your passport, boarding pass, TM6 QR code, and hotel booking ready
- Get your entry stamp – check the date! It is your permitted stay
- Proceed to baggage claim
After You Have Settled In
- 📅 90-day report: If staying over 90 days, you must report your address every 90 days (online at tm47.immigration.go.th or in person)
- 🔄 Visa extension: Apply at Chaeng Watthana or your local immigration office before your permitted stay expires
- 💰 Overstay fine: 500 THB per day. Over 90 days = blacklist
Common Mistakes Expats Make
Not checking your entry stamp date
Some officers give 30 days instead of the visa-free 60 days. Always check the stamp before leaving the counter.
Showing up to the wrong office
Chaeng Watthana is the main office – but it is far from central Bangkok. Pattaya and Phuket have local offices, but airport immigration cannot extend your visa.
Missing the 90-day report deadline
The 15-day window before your due date is your reporting period. Miss it and you will pay a 2,000 THB fine. Online is the easiest way.
Conclusion
Thailand immigration can seem overwhelming, but it is straightforward once you know the steps. Prepare your documents before you leave home – valid passport, TM6 form, hotel booking, and onward ticket. Upon arrival, you can use the e-Visa system online and handle almost everything from the main Chaeng Watthana office or your local provincial immigration. And do not forget: online services like the 90-day report and the new E-Extension save you hours of waiting in line. Travel smart, stay legal, and enjoy Thailand to the fullest!
Share this with a friend moving to Thailand – they will thank you later!