In the 18th and 19th centuries, the rial was traditionally associated with the
Maria Theresa thaler, a currency that was widely used in Yemen owing to the Mocha coffee trade with the French, and a Yemeni request that its produce be paid for in thalers. As Yemen progressed, it developed its own legal currency. After the union between the North (the
Yemen Arab Republic) and the South (the
People's Democratic Republic of Yemen) in 1990, both the
northern rial and the
southern dinar remained legal tender during a transitional period, with an exchange rate set at 1 dinar to 26 rials. On 11 June 1996, the dinar was withdrawn from circulation. In 1993, the first coins were issued for the
Republic of Yemen. The value of the Yemeni rial against the
United States dollar dropped significantly, compared to 12.01 rials per dollar in the early 1990s. Since the mid-1990s, the Yemeni rial has been freely convertible. Though it dropped from YRls 20 to approximately YRls 215 against the US dollar since then, the rial was stable for several years. However, since 2010 the Central Bank of Yemen has had to intervene many times to protect the currency's value, resulting in a serious decline of foreign reserves. Due to the
war, the exchange rate for the Yemeni rial has hovered between 250 and 500 Yemeni rials for 1 US dollar. In January 2025, the currency further deteriorated to a historic low point, where 1 USD was traded at 2150 Yemeni rials due to the lack of foreign currency availability in exchange markets and the failure of government authorities to intervene with solutions for this issue. This decline was observed in areas under the control of the internationally-supported
Presidential Leadership Council, while the Yemeni rial exchange rate remained stable in areas controlled by the
Houthis, where the dollar was approximately 530 rials. ==Coins==