Bhutanese Ngultrum

The Bhutanese Ngultrum (symbol: Nu.; ISO code: BTN) is the official currency of the Kingdom of Bhutan, subdivided into 100 chhertum. It is pegged at a fixed rate of 1:1 with the Indian Rupee, and the Indian Rupee circulates as legal tender throughout Bhutan alongside the Ngultrum — a monetary arrangement that reflects the two countries' close economic integration and Bhutan's continued reliance on India as its dominant trading and development partner. The Royal Monetary Authority (RMA), established in 1982, is the sole authority for Ngultrum issuance and manages the currency's relationship with the Rupee peg as the centrepiece of its monetary framework.

History and Introduction

Before 1974, Bhutan lacked a unified national currency. Trade conducted across regional and international borders relied on barter, Indian Rupees, and various historical Bhutanese coins — including the tikchung — whose relationship to the Rupee was informal rather than legally formalised. The Ngultrum was officially introduced on 2 June 1974, a date deliberately chosen to coincide with the coronation of King Jigme Singye Wangchuck as the Fourth Druk Gyalpo. The simultaneous launch of a new currency and the coronation of a new king was a deliberate act of national symbolism: the Ngultrum would carry the fourth king's era into Bhutanese economic life as well as political life.

The Ministry of Finance issued the first banknotes in 1974 in denominations of Nu. 1, 5, 10, and 100. The establishment of the Royal Monetary Authority in 1982 transferred issuance authority from the Ministry of Finance to the new central bank, and the RMA began issuing its own series of banknotes in 1983. The name itself reflects the currency's cultural grounding: ngul means "silver" in Dzongkha, and trum is a Hindi loanword for money — a compound that captures the hybrid, Indo-Bhutanese character of the country's modern monetary system.

Denominations and Design

Current Ngultrum banknotes are issued in denominations of Nu. 1, 5, 10, 20, 50, 100, 500, and 1,000. Coins circulate in 5, 10, 25, and 50 chhertum denominations, as well as a 1 Ngultrum coin. Banknote designs feature portraits of the Kings of Bhutan on the obverse, alongside imagery of significant dzongs, monasteries, and national landmarks — using currency as a medium for cultural education and national identity reinforcement. The Nu. 100 note typically features the Punakha Dzong; the Nu. 1,000 carries imagery of particular national significance.

In November 2025, the RMA unveiled a new series of polymer commemorative banknotes in denominations of Nu. 100, 500, and 1,000, issued to mark the 70th birth anniversary of the Fourth Druk Gyalpo Jigme Singye Wangchuck. The polymer substrate offers improved durability and enhanced security features relative to cotton-paper notes; the new series entered circulation in January 2026. Commemorative issues have become a periodic feature of Bhutanese monetary culture, marking significant royal and national events with specially designed currency.

The Indian Rupee Peg

The 1:1 peg to the Indian Rupee is perhaps the most defining structural feature of Bhutan's monetary system. The peg has been maintained without interruption since the Ngultrum's introduction, and Indian Rupees circulate freely within Bhutan as a parallel legal tender. This arrangement reflects economic realities that have not changed substantially since 1974: India absorbs the overwhelming majority of Bhutan's exports (principally hydropower and minerals), provides the bulk of Bhutan's imports, and supplies development assistance, tourist arrivals, and capital flows that dominate Bhutan's external accounts.

The peg provides price stability and eliminates transaction costs on the trade and financial flows that constitute most of Bhutan's economic activity. The cost, however, is significant: Bhutan has no independent monetary policy. The RMA cannot adjust interest rates to manage domestic credit cycles independently of the Reserve Bank of India's stance, and Bhutan's inflation rate is substantially imported from India through the currency link. As the economy diversifies — particularly if cryptocurrency or digital currency experiments proceed — the peg's rigidity may become a more active policy consideration.

References

1. "Ngultrum." Royal Monetary Authority of Bhutan.
2. "Bhutanese Ngultrum." Wikipedia.
3. "The Bhutanese Currency: Everything You Need to Know." Druk Asia.
4. "Bhutan Currency Guide: Everything You Need to Know About the Ngultrum (BTN)." Bhutan Travelog.