" The first 90 days of a Multiple-Entry Visa will start with a date stamp in your passport upon arrival in Thailand. Each entry's expiry date (89 days later) can be extended at an Immigration office in Thailand for 30 days at a cost of 1,900 baht, although most people choose to do visa runs (see a later section). If you make your last entry into Thailand immediately before your one-year multi-entry visa expires, you will actually get one year plus 90 days "

with regards to this definition about Multiple-Entry Visa's I wondered if someone could please tell me what the

official definition of the words " immediately before your one-year multi-entry visa expires " ?

for example if your visa expires on 11 March, are you able to exit and re-enter on that date itself

or is it safer to allow a gap of 2 or 3 days?

Safer for sure to do a visa run a day or two before expiry of current stay. Got to be sure your vehicle heading to a border, or airport, doesn't have a flat tire enroute and delay you out-in plan. Sickness? Delhi Belly? All sorts of things can foul up a good last minute plan.

Plus, the multi-entry visa should say something on the stamp like "Enter Before" and a date. "Before" means "not on the date shown by the stamp," altho some to many Thai Immigration officers have allowed some slack on this point.

Mac