I hope someone can help me to understand the rules and what I must do in my situation. I looked at other posts and I couldn't find my answer anywhere.

I have been teaching at a school in Bangkok for approximately 4 years under a B visa and I have recently resigned. My work permit and B visa will both expire on 02 July; however, I would like to stay in Bangkok until the middle of August. I have a job offer from a school in China and my reporting date is approximately 15 August. Now I am in the process of obtaining the Chinese visa.

I have a multiple reentry permit with my visa and I am concerned that if I leave and return to Thailand prior to 02 July, the immigration officials will just stamp me in on my current visa instead of on a 30 day tourist visa. Do I have to leave Thailand prior to 02 July and return after 02 July?

Does anyone know my options and what I should be doing? I called Jack Tours and the man on the phone said I could stay in Cambodia for 3-days to get a longer stay visa, but if I only go for a 1-day trip, I'll only get a 15 day visa. If this is the case, I might have to go to to Cambodia 3 or 4 times before relocating to China.

Is there anyway I could go to the Bangkok Immigration Office and just ask for a 6 week extension?

Any suggestions or advice?

Do you have a visa or an extension from within Thailand?

If you have a Visa then you can stay until the date on it however, if you have an extension from your local Immigration office then you must leave Thailand on the day your work finishes. You could apply for an extension but would only probably be given 7 days extra.

After that afraid to say it is tourist visas for you.

If you are on an extension of stay from immigration (as your mention of re-entry indicates) it ended the day your work ended and you were required to visit immigration that day with a letter from employer to cancel your stay (and if you wanted to stay longer pay 1,900 baht for a 7 day period to leave). You appear to have not done that so would be overstay at a charge of 500 baht per day. You might not be checked on exit but most surly would be with any contact with police/immigration and there is no possible extension in any case so you should be prepared to pay a fine and leave. Once paid it will not effect return but land return will only be 15 days or 30 days by air unless you obtain a tourist visa.

Thanks for the two replies so far. My contract with my prior school states that I am employed until the end of June and they have paid me for the month of June, so "officially" I am still employed. Hopefully, I am not overstaying yet. My visa says 02 July as the expiration.

From the replies it seems that I will have to take a few visa runs unless I fly to Laos or somewhere else and then return.

Do you really need to be in Thailand? Perhaps a few weeks in Cambodia or Malaysia prior to your move to China would be a nice change? Otherwise the options are 15/30 visa exempt or 60 days with a tourist visa return.

Yes, I would like to stay in Bangkok until mid August for various reasons. Since my passport has a visa stamp stating an expiration date of July 02, can I go on a 1-day visa run to Cambodia on June 30 and ask to be entered into Thailand on a 15 day tourist visa? My concern is that immigration might stamp my passport with a 2-day stay considering I have a reentry permit for my B-Visa. Do I have reasons to be concerned about this?

Yes that could be what they would want to do. Why not depart Saturday the 30th (which seems to be your end of employment) and get a tourist visa in Vientiane for a return on the 3rd or 4th (if you use PP will likely take longer) and then there will be no issue of using expired re-entry and you would not have to make any more border runs.