Hi, I asked the London Thai embassy the same. This is what they sent me. It’s long but detailed. Note under Additional documents it states proof of immigration status.
Required Documents
DTV1 – Workcation
Passport or travel document biodata page
A recent photo taken within 6 months
Proof of current location (e.g., the UK/Irish utility bills or driving licence)
Financial evidence of no less than 500,000 THB (£11,000)
Bank statements or proof of income must be issued by British or Irish authorities from the last 3 months. The applicant’s name and UK/Irish address must be included.
The required amount must be held for at least 10 days prior to the submission until the visa decision is made.
Reference letter from an employer confirming their employment status and permitting the remote work in Thailand
Employment contract, certificate of employment, or professional portfolio demonstrating your status as a digital nomad, remote worker, foreign talent, or freelancer
Flight e-ticket issued directly by the airline, showing your name, departure date, and full itinerary from the UK/Ireland to Thailand, including onward travel (if requested)
DTV2 – Soft Power Activities (Muay Thai training, cooking courses, long-term treatment)
Passport or travel document biodata page
A recent photo taken within 6 months
Proof of current location (e.g., the UK/Irish utility bills or driving licence)
Financial evidence of no less than 500,000 THB (£11,000)
Bank statements or proof of income must be issued by British or Irish authorities from the last 3 months. The applicant’s name and UK/Irish address must be included.
The required amount must be held for at least 10 days prior to the submission until the visa decision is made.
Confirmation of enrolment from a gym/school or an appointment letter from a hospital/medical centre
The chosen activity must last at least 6 months at a minimum.
Official business registration is required.
Strong employment evidence listed in DTV1
Flight e-ticket issued directly by the airline, showing your name, departure date, and full itinerary from the UK/Ireland to Thailand, including onward travel (if requested)
DTV3 – Dependents (Only for dependents of the main DTV holders)
Passport or travel document biodata page
A recent photo taken within 6 months
Proof of current location (e.g., the UK/Irish utility bills or driving licence)
Financial evidence of no less than 500,000 THB (£11,000)
Bank statements or proof of income must be issued by British or Irish authorities from the last 3 months. The applicant’s name and UK/Irish address must be included.
The required amount must be held for at least 10 days prior to the submission until the visa decision is made.
Copy of main applicant’s DTV visa
Proof of relationship (e.g., marriage, birth, or adoption certificate)
Flight e-ticket issued directly by the airline, showing your name, departure date, and full itinerary from the UK/Ireland to Thailand, including onward travel (if requested)
Additional Requirements
Additional documents or an in-person interview may be requested if necessary.
Non-UK and non-Irish citizens
UK/Irish valid immigration status is required as a proof of current location
An employment confirmation letter issued by the UK or Irish employer and addressed to the Royal Thai Embassy in London is also required. (Employment offers or acceptance letters are not accepted)
Students
Official letter confirming full-time academic status
Self-Employed
Business registration or license
Self-assessment tax return