Is it possible to extend a visa exempt 30 day stamp by a further 30 days at local immigration, or does that only apply to visas?

yes no problem, go in the last 7 days of your permission to stay stamp, will be added to your current 30 days, giving you 60 days

1900baht

32 minutes ago, steve187 said:

yes no problem, go in the last 7 days of your permission to stay stamp, will be added to your current 30 days, giving you 60 days

Mainly for others. Why Steve suggested last 7 days is that take extreme case where someone applied for extension in first week and even more so on a setv, you might get crazy io give 30 day from when you apply. Later the better. Last 7 best option.