Since mid-July 2026, the Thailand Investment and Expat Services Center (TIESC) is now requesting employers to provide additional supporting documents when applying to cancel Non-Immigrant ‘B’ (Business/Work) visas (‘Non-BOI’) visas.
The requested additional documents are:
The standard visa cancellation documents generally remain unchanged, including the company’s monthly personal income withholding tax return (PND.1) for the current month and a company affidavit issued by the Department of Business Development within the past six months.
Following a cooperation request from TIESC immigration officers, employers are now asked to provide a list of all expatriate employees and copies of their Digital Work Permits when applying to cancel a Non-BOI visa.
Although these documents were not generally required previously, immigration officers have advised that they should now be included as supporting documents.
The additional documents are intended to help immigration authorities verify expatriate employee records and assess compliance with applicable immigration requirements, including the required foreign-to-Thai employee ratio.
For now, the request appears to reflect an administrative practice adopted by TIESC, rather than a formal change to the published documentary requirements.
Employers sponsoring expatriate employees in Thailand should factor these additional document requests into the Non-BOI visa cancellation process.
In practice, employers should:
For a deeper discussion on the above, please reach out to your Vialto Partners point of contact, or alternatively:
Jiraporn Chongkamanont
Partner
Hataitrat Topiboonpong
Senior Manager
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