Visitors to Tonga must obtain a visa unless they are citizens from one of the visa-exempt countries or citizens who may obtain a free visa on arrival. Visa applications must be sent to the Principal Immigration Officer in Nuku'alofa.

All visitors must have a passport valid for at least 6 months.

Citizens of the following countries may enter Tonga without a visa for the following period:

Citizens from the following countries and territories may obtain a free visa on arrival (valid for 31 days, extendable up to 6 months):

The same policy applies to holders of diplomatic or service passports of China.