There is no longer a rule limiting the number of days you can stay in Thailand to 90 within a 6 month period if you travel without visa. Each entry by air gives you 30 days, by land 15 days, without there being an official limit on the number of entries you can make.

If you travel without a visa you can expect the airline to ask you for proof of return ticket or onward travel within 30 days.

Most nationalities do not require any visa for stays of up to 30 days. After the first 30 days, many of openmindprojects  volunteers are cross the border to Malaysia, Laos, Cambodia or Burma to get another 15 days permission to stay in Thailand if they go back by land or 30 days if they fly back.

Tourist visas permit stays of up to 60 days obtainable from Thai embassies and consulates. For full details, contact your nearest Thai embassy or consulate.

Overstaying a couple of days is not a problem but there is a 500 Baht fine per day overstay.

OpenmindProjects can help you with a special letter of  invitation for your visa application if you stay for a longer period.

Link http://thailandvisa.com

About Openmind Projects

Openmind Projects is a local aid, development and volunteer organisation. They offer international volunteers unique opportunities to help bridge knowledge divides and to help save nature, while growing as persons in our grassroots education and eco projects.

OpenmindProjects is not affiliated with any government, political party, or religion. It is a privately operated organization incorporated in Thailand with local partners and projects in Laos, Cambodia, and Nepal.