Parent of a Thai Child: 90-Day Non-Immigrant O Checklist

To stay with or support your Thai child in Thailand

Last updated: 10 September 2026

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Apply via the official system:

Thai e-Visa↗

1) Key Rules Before Applying

Apply outside of Thailand through Thai e-Visa or a Thai embassy/consulate

Proof you’re currently in the country of application (e.g. entry stamp, visa or driving licence)

Passport (valid at least 6 months with 2+ blank pages)

Thai child should be under 20 years old, unless unable to support themselves due to a mental or physical condition

2) Required Documents (upload to eVisa)

Passport bio page

Passport style photo, taken within 6 months (4×6 cm)

Official document confirming current location

One of the following: Bank balance 400,000 THB OR Monthly income 40,000 THB+

Bank statement covering the last 3 months

Thai child’s birth certificate showing the parent-child relationship

Proof of the child’s Thai nationality, such as Thai birth certificate, Thai passport, Thai ID card, or house registration

Thai child’s Blue Book/Tabien Baan, if available

Supporting letter explaining that you are applying based on your Thai child

3) Travel Information Required in Application

Intended date of entry

Port of arrival (Air/Land/Sea)

Flight number or transport details

Accommodation address in Thailand

4) After Submission

Pay the visa fee: some offices accept online payment, others require in person

Processing time varies by embassy or consulate

Remain in that country until you receive feedback and approval

Once approved you will receive an email/visa approval document

5) After Approval

Print and save your visa approval document

Ensure TM.30 is filed within 24 hours of arrival (by property owner / hotel)

Apply for a 1-year extension of stay during the last 30 days of your visa, if staying long term

Apply for a Re-Entry Permit before leaving Thailand, if you plan to travel

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Notes

Do not apply more than 3 months before intended arrival.
Embassy requirements can vary by location and may differ from Thai Immigration office requirements.
If any family documents were issued outside Thailand, check whether translation and legalisation are required.
Upload clear scans and keep the original documents ready for travel and future extension steps.

This checklist reflects the documents typically required; however, requirements vary by immigration office. Additional documents are often requested depending on individual circumstances, so please confirm the latest requirements with your local office. Final approval is at the discretion of the immigration officer.