An individual is deemed to be a Bhutanese citizen by birth given that both parents are citizens of Bhutan. Registration for citizenship is also possible, whereby an individual permanently domiciled in Bhutan on or before 31st December 1958 and whose name is recorded in the Census Register, maintained by the Ministry of Home & Cultural Affairs, will be considered a Bhutanese citizen.
Through the submission of an application in a prescribed format, a person may acquire Bhutanese citizenship through naturalisation, given that he/she has attained the age of 21 years and has lawfully resided in Bhutan for at least fifteen years; does not have any record of imprisonment of crime within or outside the country; is able to speak and write Dzongkha, the national language of Bhutan; has good knowledge of the culture, customs, traditions and history of Bhutan; has no record of speaking or acting against the Tsawa-sum (King, Country & People); and renounces the citizenship of any foreign state on being conferred Bhutanese citizenship by a “Royal Kasho of the Druk Gyalpo (Royal Decree of His Majesty the King of Bhutan)”. Above all, grant of the citizenship is the prerogative of His Majesty the King.
Bhutan does not allow dual citizenship under its laws. If any Bhutanese acquires the citizenship of a foreign country, their Bhutanese citizenship shall be terminated, therefore, they shall cease to be a citizen of Bhutan.