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The Bhutanese ngultrum (sign: Nu.; ISO code: BTN) is the official currency of the Kingdom of Bhutan, introduced in 1974 during the reign of the Third King, Jigme Dorji Wangchuck, as part of the country's broader modernisation and assertion of national sovereignty. The ngultrum is pegged at par to the Indian rupee (1 BTN = 1 INR), and the Indian rupee circulates as legal tender throughout Bhutan alongside the ngultrum — a dual-currency arrangement that reflects the deep economic ties between the two nations. The currency is issued and regulated by the Royal Monetary Authority of Bhutan (RMA), established in 1982.^[1]

For visitors to Bhutan, understanding the ngultrum and the country's monetary landscape is essential for practical trip planning. While Bhutan's tourism sector has modernised considerably since the country first opened to tourists in 1974, the availability of international banking services, card payments, and foreign currency exchange remains more limited than in many other Asian destinations. The coexistence of the ngultrum and the Indian rupee, restrictions on the use of high-denomination Indian banknotes, and the predominantly cash-based economy outside major towns are important practical considerations for any traveller.^[2]

History

Prior to 1974, Bhutan did not have its own modern currency. The Indian rupee served as the de facto medium of exchange following the expansion of economic ties between the two countries in the mid-twentieth century. Historically, Bhutan used a system of barter supplemented by Tibetan silver coins and, in the southern districts, Indian coinage. The decision to introduce a national currency was taken as part of the Third King's modernisation programme and the country's gradual assertion of international sovereignty — Bhutan joined the United Nations in 1971, just three years before the ngultrum's introduction.^[1]

The first ngultrum banknotes were printed by the India Security Press in Nashik, India, in denominations of 1, 5, 10, and 100 ngultrum. The currency was introduced on a phased basis, with the Indian rupee continuing to circulate in parallel — an arrangement that persists to this day. The name "ngultrum" derives from the Dzongkha word ngul (silver) and the Tibetan word trum (money). The currency is subdivided into 100 chetrum, though chetrum coins have effectively disappeared from everyday circulation due to their negligible purchasing power.^[3]

Denominations

Ngultrum banknotes are currently issued in denominations of Nu 1, Nu 5, Nu 10, Nu 20, Nu 50, Nu 100, Nu 500, and Nu 1,000. Coins are minted in denominations of 25 chetrum, 50 chetrum, and Nu 1, though coins are rarely encountered in everyday transactions. The banknotes feature portraits of Bhutanese monarchs, images of dzongs, monasteries, and national symbols. The Nu 1,000 note, the highest denomination, was introduced in 2008 to commemorate the coronation of the Fifth King, Jigme Khesar Namgyel Wangchuck. Each denomination features security features including watermarks, security threads, and colour-shifting elements.^[4]

Commemorative banknotes have been issued on several occasions, notably for royal coronations and significant national anniversaries. These commemorative notes are legal tender but are also collected as numismatic items. The RMA has periodically updated banknote designs to incorporate improved security features and updated imagery.^[4]

The Rupee-Ngultrum Peg

The fixed 1:1 peg between the ngultrum and the Indian rupee is the foundational feature of Bhutan's monetary arrangement. This peg means that the ngultrum's value against all other world currencies — the US dollar, euro, British pound, and others — fluctuates exactly in tandem with the Indian rupee. When the rupee strengthens against the dollar, the ngultrum does too; when the rupee weakens, so does the ngultrum. Bhutan does not maintain an independent exchange rate or conduct independent monetary policy in the conventional sense — its monetary conditions are effectively determined by the Reserve Bank of India's policy decisions.^[1]

Indian rupees in denominations of Rs 1, Rs 2, Rs 5, Rs 10, Rs 20, Rs 50, and Rs 100 are accepted throughout Bhutan without restriction. However, Indian banknotes in denominations of Rs 200, Rs 500, and Rs 2,000 are generally not accepted in Bhutan and cannot be used for transactions. This restriction reflects concerns about counterfeiting and the practicalities of the bilateral currency arrangement. Visitors arriving from India should ensure they carry small-denomination Indian rupee notes or exchange for ngultrum at the border or in Bhutanese towns.^[2]

The vulnerabilities of this deep monetary integration with India became evident during India's sudden demonetisation in November 2016, when the Government of India withdrew Rs 500 and Rs 1,000 notes from circulation overnight. Many Bhutanese citizens and businesses held substantial amounts of those notes, and the abrupt invalidation caused short-term economic disruption inside Bhutan. The episode highlighted both the convenience and the risks of Bhutan's currency arrangement with its larger neighbour and prompted internal discussion about strengthening the ngultrum's domestic role.^[8]

The peg also constrains Bhutan's monetary autonomy in important ways. The Royal Monetary Authority cannot independently set interest rates or manage the money supply: when the Reserve Bank of India tightens or loosens policy, those effects are transmitted directly to Bhutan. Periodic discussions have raised the possibility of managed-float arrangements or other reforms, but successive governments have judged that the costs of breaking the peg — given the volume of Bhutan-India trade and remittance flows — would outweigh the benefits.^[1]

Exchange and Conversion

Foreign currency can be exchanged at authorised money changers and banks in Bhutan's major towns, including Thimphu, Paro, and Phuentsholing. The Bank of Bhutan (BoB), Bhutan National Bank (BNB), Druk PNB Bank, and the Bhutan Development Bank all offer foreign exchange services at their main branches. Exchange rates follow the prevailing Indian rupee rate against the relevant foreign currency, since the ngultrum tracks the rupee exactly. A small spread or commission is typically applied. US dollars, euros, and British pounds are the most readily exchangeable currencies; other currencies may be more difficult to exchange outside Thimphu.^[5]

Visitors on organised tours — which remain the primary mode of tourism in Bhutan — typically have their major expenses (accommodation, meals, transport, guide fees) prepaid through their tour operator. However, cash in ngultrum or small-denomination Indian rupees is needed for souvenirs, tips, personal shopping, snacks, and entry fees at some religious sites. It is advisable to exchange sufficient currency in Thimphu or Paro, as banking services in smaller towns and rural areas are limited. Hotels in Thimphu and Paro may accept US dollars for payments, but this is not standard practice and the exchange rate offered will typically be unfavourable.^[2]

ATMs and Card Payments

ATMs are available in Bhutan's larger towns, primarily Thimphu, Paro, Phuentsholing, Gelephu, and district capitals (dzongkhag headquarters). The Bank of Bhutan and Bhutan National Bank operate the majority of ATMs. Most ATMs accept international Visa and Mastercard debit and credit cards, though connectivity issues and machine malfunctions are not uncommon, particularly in smaller towns. Daily withdrawal limits typically range from Nu 10,000 to Nu 20,000 (approximately USD 120-240), and transaction fees apply for international cards. ATMs dispense ngultrum only.^[5]

Card payment acceptance has expanded in recent years, particularly in Thimphu hotels, upscale restaurants, and larger retail establishments. However, the majority of shops, markets, local restaurants, and rural establishments remain cash-only. Visitors should not rely exclusively on cards and should carry sufficient cash for their itinerary. Mobile payment systems, including the RMA-backed mBoB (mobile banking) and emerging QR-code-based payment platforms, are growing among the domestic Bhutanese population but are not yet widely accessible to foreign visitors.^[6]

Practical Tips for Visitors

Visitors should carry a mix of US dollars (for exchange purposes) and ngultrum/small-denomination Indian rupees for daily expenses. Exchanging money at the Paro airport or at banks in Thimphu upon arrival is recommended. Ngultrum cannot be easily exchanged back into foreign currency outside Bhutan, so it is advisable to exchange only as much as needed. Leftover ngultrum can be used in India at face value (as 1 BTN = 1 INR), though Indian merchants outside the border areas may not recognise or accept the currency. Tipping is not traditionally expected in Bhutan but has become customary in the tourism sector; guides, drivers, and hotel staff are typically tipped in cash at the end of a trip.^[2]

The cost of goods and services in Bhutan is moderate by international standards but higher than in neighbouring India and Nepal, reflecting the country's import-dependent economy and logistical challenges. A meal at a local restaurant in Thimphu costs approximately Nu 150-400 (USD 2-5), while handicraft souvenirs can range from Nu 500 to several thousand ngultrum depending on the item. Imported goods, particularly electronics and processed foods, are relatively expensive due to transport costs and import duties.^[7]

Future of Bhutanese Currency

The Royal Monetary Authority has explored digital currency and financial technology initiatives as part of Bhutan's broader modernisation agenda. Bhutan has attracted attention for its early engagement with central bank digital currency (CBDC) concepts and for a partnership with Ripple to explore a digital ngultrum pilot. The country's high mobile phone penetration and relatively small, connected population make it a potential testbed for digital currency innovation. However, the digital ngultrum remains in experimental stages, and cash continues to dominate daily transactions throughout the kingdom.^[6]

Bhutanese Ngultrum: A Practical Guide