Hi,
My last working day in Thailand is on 29th April and we are flying out of the country on 30th April.
I am planning to go to Chaeng wattana immigration office on 25th April.
What is the procedure as well as list of documents needed from my employer to cancel the visa so that I can leave on 30th april, 1 day after my last day at work on 29th April ?
TLDR : Answer Summary
To cancel your visa at Chaeng Wattana immigration office, you will need to bring documentation from your employer indicating your termination date and proof of cancellation of your work permit. This must be done before you leave Thailand, which is planned for one day after your last working day. If you plan to leave the day after your last day at work, you may incur a 500 baht overstay fine unless you manage to cancel your extension and request a 7-day exit stamp for 1900 baht. If your overstay is under 24 hours, you might be eligible for a fine waiver.