Private company, public company, juristic partnership, foundation and association or any other legal entity with accounting period ended 31 December 2013 are required to file the annual corporate incom tax (Por Ngor Dor 50, Por Ngor Dor 52, Por Ngor Dor 55) on this Friday, 30th May 2014 (within 150 days from the accounting period ending date). For online filing, the due date will be extended for 8 days, and since it falls on a government holiday, the last day for online filing is on Monday, 9th June 2014.
Please make sure that you file the tax forms correctly and accurately. Contact MSNA for your Thailand accounting and tax questions.