The Tongan Pa'anga (TOP) is the official currency of the Kingdom of Tonga. It is divided into 100 seniti and is issued by the National Reserve Bank of Tonga. The Tongan Pa’anga (TOP) has been in circulation since 1967, replacing the Pound Sterling.The Tongan Pa'anga is pegged to a basket of currencies, primarily the Australian dollar, the New Zealand dollar, and the US dollar. The currency is not widely used outside of Tonga, and exchange rates for it can be difficult to find in other countries.The TOP currency is used for all the transactions in Tonga and can be used to purchase goods and services, pay bills, and make investments. The country has a relatively small economy, and the currency is not as widely traded as other currencies. The value of the Tongan Pa'anga can be affected by the economic conditions of the countries in the currency basket it is pegged to.In summary, the Tongan Pa'anga (TOP) is the official currency of the Kingdom of Tonga. It is issued by the National Reserve Bank of Tonga and is pegged to a basket of currencies, primarily the Australian dollar, the New Zealand dollar, and the US dollar. The Tongan Pa'anga is not widely used outside of Tonga and its value can be affected by the economic conditions of the countries in the currency basket it is pegged to.