Check the stamp first
Visa validity and the date until which you may remain can differ. Base your departure or extension plan on the current permission to stay. Official guidance distinguishes extension grounds and supporting evidence; TM.7 does not produce the same entitlement for every entry type. TM.30 and TM.47 reporting do not replace an extension.
Prepare the grounds before the deadline
Prepare legible copies of the passport, latest entry and previous extension. Ask the office responsible for your actual residence for the checklist matching tourism, family, education or another ground. Keep the receipt and outcome. An appointment, uploaded application or agent’s promise alone does not prove a new stay deadline: verify the official decision and endorsement.
Next steps
- Record the current permitted-stay deadline.
- Identify the genuine ground and official checklist.
- Apply in advance under the responsible office’s rules.
- Check the new endorsement and keep the receipt.
Official sources
- Thai government / Immigration Bureau — Extension for tourism and other grounds ↗
Checked: 2026-10-19
- Sakon Nakhon Immigration — TM.7 and TM.8 official forms ↗
Checked: 2026-10-19