Local guide
Koh Samui Immigration Office: the practical guide
Everything you need before visiting the Immigration Office in Maenam — documents, official fees, timing, and how to avoid a second trip.
The Koh Samui Immigration Office, located in Maenam (Surat Thani province), handles visa extensions, 90-day reports, re-entry permits and residence notifications for foreigners staying on Koh Samui, Koh Phangan and Koh Tao. It moved to its current, larger Maenam building in 2016.
Who must use the Samui office
Any foreigner staying on Koh Samui, Koh Phangan or Koh Tao who needs an extension of stay, a 90-day report, a re-entry permit or a change of address notification (TM30) falls under the Samui Immigration Office. There is no immigration office on Phangan or Tao, so islanders take the ferry to Samui.
Documents for a 30-day tourist extension
For a standard 30-day extension of a tourist entry, prepare the following before queuing:
- Completed and signed TM7 application form
- Passport, plus signed copies of the photo page, current visa or entry stamp, and TM6/arrival record where applicable
- One recent 4×6 cm photo
- 1,900 THB in cash (official government fee)
- Proof of address on the islands (TM30 registration by your hotel or landlord)
When to go and how long it takes
Extensions are normally accepted in the final week of your permitted stay. Arrive at opening time: morning queues are shortest at 8:30. A clean, complete file is usually processed the same morning; a missing document means a second ferry trip for Phangan and Tao residents.
We prepare files in advance on WhatsApp — forms filled, copies checked, photos verified — so one visit is enough. Message us with your visa category to get the exact checklist for your case.
Key facts
- Location
- Maenam, Koh Samui, Surat Thani 84330
- Opening hours
- Mon–Fri 8:30–12:00 and 13:00–16:30 (closed Thai public holidays)
- Covers
- Koh Samui, Koh Phangan, Koh Tao
- 30-day extension fee
- 1,900 THB (official government fee)
- Extension form
- TM7 + one 4×6 cm photo + passport copies
- 90-day report
- TM47 form — free of charge
- Re-entry permit
- 1,000 THB single / 3,800 THB multiple (official fees)
Fees shown are official Thai government fees, paid directly to Immigration. Our assistance fees are communicated privately after reviewing your case.
Frequently asked questions
Where is the Koh Samui Immigration Office?
In Maenam, on the north coast of Koh Samui, Surat Thani province. The office moved from Nathon to a larger building in Maenam in 2016.
Can I extend my visa on Koh Phangan or Koh Tao?
No. Neither island has an immigration office. Extensions, 90-day reports and re-entry permits for Phangan and Tao residents are all handled at the Samui office in Maenam.
How much does a 30-day extension cost at Samui Immigration?
The official government fee is 1,900 THB, paid in cash at the office. Any assistance fee for preparing your file is separate and quoted privately after reviewing your case.
Do I need an appointment at Samui Immigration?
Walk-ins are accepted for most services, but practices evolve. Message us on WhatsApp before you go — we confirm the current procedure and prepare your documents so one visit is enough.
Last updated: 2026-08-16