New Visa Before Current One Expires, An Issue?

[rainman]

for example, your current tourist visa expires on july 18th, but you leave the country lets say june 30th to get a new tourist visa, is that an issue?

[lopburi3]

A tourist visa is no longer valid after it is used - dates on them are a use by date.

Believe you are probably thinking about permission to stay stamps put on at immigration. You can leave anytime and return anytime. It is done everyday by tourists visiting the surrounding countries and then returning to Thailand in the course of their travels.

If you do this repeatedly "to obtain a new stay" it may become an issue at some point down the line.