As the others have stated (and I have an email from the Thai authorities), you'll need to carry both passports. It is not possible (despite what some have said) to transfer your DTV to a new passport, even if you visit the immigration centre.

If you lose your old passport, or no longer have access to it, you will need to reapply for a DTV from scratch.

Anonymous participant 698 You are them tattooed to make a new visa application.

Anonymous participant 385 You can't. That's not something they will do. I have this in written confirmation from the Thai authorities. You simply need to take both your new and old passports with the DTV

@Peter *******

That's Musk. Avoid like the plague.

@Daniel *********

Saves you getting all stressed and having to ask for advice on social media, mind

It's all in the instructions on the visa site

From the UK, I didn't show anything related to flights at all, and it wasn't on the list of requirements

Therapy sounds like the correct approach

4 years

@Claire ******

Nope. 180 days with each entry, without limitation on how long you're out