22OCT

Rial hits 1.7m per dollar, down 43%

2 min read

19:10UTC

Iran's rial traded at 1,705,000 to the dollar on Sunday 31 May, a 43% devaluation over six months, with the brief deal-optimism rally already unwound.

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Key takeaway

Ordinary Iranians face a 43% currency collapse and rising import costs even as the diplomatic track softened.

Iran's rial traded at 1,705,000 to the dollar on Sunday 31 May, a 43% devaluation over six months⁠¹. The brief rally that deal optimism produced has already unwound, so the softer diplomatic mood has bought ordinary Iranians no lasting relief.

The slide tracks the cumulative weight of OFAC sanctions, including the designation of a port operator on Thursday 28 May, layered on top of wartime trade disruption. OFAC is the US Treasury's Office of Foreign Assets Control, which administers the sanctions that throttle Iran's access to hard currency. For households, a rial worth less each month means imported food and medicine keep climbing in price regardless of what Trump signs or refuses to sign. The squeeze is structural rather than a passing shock, and a signed ceasefire would not reverse it quickly.

Deep Analysis

In plain English

When a currency loses 43% of its value against the dollar in six months, imported goods cost 43% more in local currency terms. For Iranians, that means food items bought with dollars on global markets (wheat, cooking oil, medicine) have become dramatically more expensive. Iran imports a significant share of its pharmaceuticals and wheat. The rial's decline is not primarily caused by the war's oil-price swings; it reflects accumulated sanctions that prevent Iran's government from repatriating oil revenues earned in foreign currencies. Iran earns dollars selling oil to China and others, but cannot convert or access those revenues freely because of OFAC designations. The result is a currency that falls not because trade stops but because the earnings from trade are frozen abroad.

What could happen next?

Consequence
Pharmaceutical import costs are the most acute humanitarian pressure; at 1.705m/USD, European API suppliers pricing in euros have effectively priced out Iranian public-sector procurement.
Risk
A deal that reopens Hormuz but leaves OFAC's PGSA designation in place will not arrest the rial's decline, because the primary driver is sanctions on revenue repatriation, not the physical blockade.

Source Landscape

This story draws on neutral-leaning sources

Primary parallel: The 2018 US withdrawal from the JCPOA and reimposition of sanctions produced a comparable rial collapse: from roughly 42,000/USD in April 2018 to 190,000/USD by January 2019, a 77% devaluation over 10 months. The 2026 trajectory is steeper in percentage terms over a shorter period, reflecting the additional shock of active military conflict suppressing oil revenues simultaneously with sanctions.

Counter-parallel: Venezuela's bolivar devaluation during US oil sanctions (2019-2022) is sometimes cited as a comparator, but Venezuela lacked Iran's domestic manufacturing base and diversified export basket. Iran's economy is more institutionally resilient than Venezuela's was, but the comparison illustrates the endpoint risk if sanctions and conflict pressure continue without a settlement.

The 43% six-month devaluation tracks three compounding pressures: OFAC's designation of the Persian Gulf Strait Authority under Executive Order 13224 on 28 May, which tightened the sanctions perimeter on any entity processing Hormuz-adjacent transactions; the internet blackout since late February, which has disrupted informal currency trading desks in Tehran's Gran Bazaar; and the blockade's suppression of oil-export volumes.

The IMF's April 2026 Article IV projection of 68.9% inflation in 2026 assumes the rial holds near 1.5m/USD. At 1.705m and still falling, the actual inflation rate is tracking above the IMF's central estimate. Pharmaceutical import costs are the most politically sensitive: Iran produces roughly 90% of its medicines domestically by volume but imports 40% of its active pharmaceutical ingredients from European and Indian suppliers, priced in euros and dollars.

Sources:Alanchand

Mentions:OFAC →China →Iran →Venezuela →US Treasury →Persian Gulf Strait Authority →

First Reported In

Update #113 · Trump signs nothing as a Hellfire hits a hull

Alanchand· 31 May 2026

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Causes and effects

Caused by

Iran inflation at worst since 1942

77.2% CBI inflation reading compounds the rial-slide economic pressure documented since ID:3774

Occurred 5 Jun 2026

Read story →

This Event

Rial hits 1.7m per dollar, down 43%

The currency collapse documents the cumulative cost of sanctions and conflict disruption on Iran's domestic economy, independent of any diplomacy outcome at the negotiating table.

Led to

Brent jumps 7%, rial hits record low

The rial's 1,746,000 record on 2 June deepens its slide from 1,705,000 on 31 May, accelerated by Iran's formal talk suspension.

Occurred 1 Jun 2026

Read story →

Iran's rial rises for a war-first time

The rial recovery is the first reversal of the 43% six-month devaluation documented on 31 May.

Occurred 3 Jun 2026

Read story →

Different Perspectives

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Mindaugas Sinkevičius

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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.