Wills do not have to be written in Thai, however a Thai translation will be required by the courts to process the will. In Thailand, one can make a handwritten will or they can have one prepared by a lawyer. A will written in another country may be valid in Thailand, however, the foreign will should be reviewed by a Thai attorney.

If a foreigner has a registered marriage to a Thai citizen and the Thai citizen does not have a will, a foreign spouse can still inherit land that was in their spouse’s name, however, if there are step children involved, the land would go 50% to the spouse and 50% to the children.