Iran’s battered economy faces a new storm as its currency, the rial, plummets to near-record lows on the open market. The sharp decline comes amid mounting fears that European powers will soon trigger the United Nations’ “snapback” sanctions mechanism, a move that could further isolate Tehran and exacerbate the country’s ongoing economic crisis.
On August 28, 2025, currency dealers in Tehran quoted the dollar at over 1 million rials, with some reporting rates as high as 1,030,000 rials per US dollar, according to Associated Press and local sources cited by Reuters. This marks a staggering fall from 32,000 rials to the dollar at the time of the 2015 nuclear accord, and is only slightly above the all-time low of 1,043,000 rials reached in April. Just last week, the rial traded at 957,000 to the dollar, underlining the currency’s accelerating slide.
Behind this turmoil lies the looming threat of renewed international sanctions. France, Germany, and the United Kingdom warned on August 8 that they would begin the process of reimposing UN sanctions—known as “snapback”—if Iran failed to resume cooperation with the International Atomic Energy Agency (IAEA) after halting inspections in the wake of Israeli strikes and the 12-day war with Israel in June. The snapback provision, enshrined in the 2015 nuclear deal, was designed to be veto-proof and would automatically reimpose sanctions after a 30-day window unless the Security Council votes to continue suspending them—a step that any permanent member could block.
For ordinary Iranians, the prospect of snapback is already being felt in their daily lives. The currency’s slide has triggered widespread anxiety about rising prices, shrinking purchasing power, and job losses. Iran’s Intelligence Ministry has reportedly warned senior officials and leading companies to brace for “severe currency fluctuations, reduced purchasing power, increased unemployment, layoffs, and heightened social discontent,” according to Iran International. The Chamber of Commerce painted a grim picture in a new report, forecasting that if snapback sanctions are imposed, the rial could plunge to 1.65 million per dollar and annual inflation could soar to 90 percent by year’s end. Economic growth, the report predicts, would remain negative under all scenarios.
Sanctions, if reinstated, would freeze Iranian assets held abroad, halt arms deals with Tehran, and penalize any development of its ballistic missile program. Perhaps most crucially, they could also disrupt Iran’s oil exports to China, one of its last major lifelines. The Soufan Center, a New York-based think tank, observed, “The U.S. and its European partners see invoking the ‘snapback’ as a means of keeping Iran strategically weak and unable to reconstitute the nuclear program damaged by the U.S. and Israeli strikes.” Iranian leaders, on the other hand, view snapback as a Western attempt to “weaken Iran’s economy indefinitely and perhaps stimulate sufficient popular unrest to unseat Iran’s regime.”
The diplomatic standoff has grown more tense in recent weeks. After initially downplaying the threat, Iran has made only limited efforts to stave off snapback. Foreign Minister Abbas Araghchi, speaking last week, struck a fatalistic tone about the prospects for diplomacy. “Sometimes war is inevitable,” he told state media, referencing the June conflict with Israel. “Negotiation alone cannot prevent war.” He added, “Weren’t we in the talks when the war happened? So, negotiation alone cannot prevent war.”
Before the June war, Iran was enriching uranium up to 60 percent purity—a technical step away from the 90 percent needed for weapons-grade material—and had amassed enough highly enriched uranium to potentially build multiple atomic bombs, should it choose to do so. While Iran maintains that its nuclear program is for peaceful purposes, Western nations and the IAEA have long assessed that Tehran had an active nuclear weapons program up until 2003. The true extent of the damage from Israeli and U.S. strikes on Iranian nuclear sites in June remains unclear, as Iran claims to have moved uranium and equipment out before the attacks, possibly to undisclosed locations.
Under the 2015 nuclear deal, Iran agreed to grant the IAEA unprecedented access to its nuclear facilities, including the installation of permanent cameras and sensors, as well as routine inspections. However, since the U.S. unilaterally withdrew from the agreement in 2018, Iran has steadily restricted access for inspectors, a trend that accelerated after the June 2025 conflict. The IAEA has publicly called for inspections to resume “as soon as possible.” Inspectors were present as recently as August 27 to oversee a fuel replacement at Iran’s Russian-backed Bushehr nuclear reactor, but broader access to key enrichment and research sites remains suspended.
The clock is ticking for both sides. The current UN resolution that allows for the snapback mechanism will expire on October 18, 2025. After that, any attempt to restore UN sanctions would likely face a veto from China or Russia, both of which have historically supported Iran to varying degrees. Russia, which will assume the rotating presidency of the UN Security Council in October, has floated proposals to extend the resolution’s life, potentially buying more time for diplomacy. However, with European patience wearing thin after years of inconclusive negotiations, the sense in Western capitals is that now may be the last, best chance to force Iran’s hand before the snapback option disappears.
The IAEA’s role has become increasingly fraught. While the agency continues to monitor some activities, its ability to verify Iran’s compliance has been severely curtailed. Devices such as online enrichment monitors at the Natanz facility and environmental sampling had been key tools, but their effectiveness is now in question. Iran has threatened to abandon all cooperation with the agency if snapback sanctions go forward. Kazem Gharibabadi, a deputy foreign minister, warned on state television, “We have told them if this happens, the pathway we have opened for working with the IAEA will be completely affected and the process will likely be stopped. If they opt for snapback, it makes no sense for Iran to continue working with them.”
As the deadline approaches, the stakes could hardly be higher. The prospect of snapback sanctions hangs over a Middle East still reeling from the Israel-Hamas war, with the risk of further escalation never far from anyone’s mind. For Iran’s government, the challenge is existential; for its people, the consequences are immediate and harsh. Whether diplomacy can pull the region back from the brink remains to be seen, but for now, the rial’s collapse is a stark reminder of how quickly international politics can hit home.