16APR

Rial passes 2.5 million to the dollar

3 min read

14:27UTC

Tehran dealers exchanged more than 2.5 million rials to the dollar on 29 September, an open-market quote rather than a central bank rate. The previous record, 2.2 million, was set on 2 September.

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Key takeaway

The rial crossed 2.5 million to the dollar, down about an eighth in 27 days.

Tehran dealers exchanged more than 2.5 million rials to the dollar on Tuesday 29 September 2026⁠¹. That is an open-market quote taken on the street rather than a rate published by the Central Bank of Iran, and it is the price an ordinary Iranian actually pays for hard currency. The previous record, 2.2 million rials, was set on 2 September, so the currency lost about an eighth of its dollar value in 27 days⁠².

Four months ago the series sat at a different order of magnitude. On 7 June the rate stood at 1,762,000 rials to the dollar, itself a record at the time. Each of those marks was set in a single session and held for weeks; the gap between them shows how much of the slide has happened since the summer, and how little of it has been given back.

Iran funds its budget and its import cover in dollars earned from crude, and with nothing loaded in the Gulf all month that revenue is not arriving⁠³. A central bank defending a rate needs reserves it can spend; a central bank whose export receipts have stopped is reduced to watching. The street rate is therefore tracking the blockade more faithfully than any official figure, and it will keep doing so for as long as the loadings stay at nothing.

Iranian households meet this number as a price rather than as a market indicator. Imported food and medicine are bought at or near the open-market rate, so an eighth off the currency in under a month is an eighth onto the cost of a course of drugs paid for in rials.

Deep Analysis

In plain English

Iran uses a currency called the rial. Officially the central bank sets a rate, but most Iranians buying or selling dollars use street dealers, and that open-market rate is the one that reflects real supply and demand. On 29 September 2026 those dealers were exchanging more than 2.5 million rials for a single US dollar. The previous record, 2.2 million, had been set only 27 days earlier, on 2 September. So the currency lost about an eighth of its dollar value in under a month. The reason comes down to oil sales. Iran earns most of its foreign currency by selling oil, and in September it sold none at all, because an American naval blockade stopped the tankers loading. No dollars coming in means fewer dollars available to buy, and the price of each one rises. For an Iranian household that shows up quickly in the cost of imported food and medicine, because those are bought in dollars and sold in rials.

Deep Analysis

Root Causes

Iran loaded no crude at all in the Gulf in September 2026, so the hard-currency inflow that normally funds imports and backs the central bank's interventions stopped for a full month. A dealer quoting dollars in Tehran is quoting against a supply the state cannot replenish, and the rate falls in proportion to how long the market expects that to continue.

About $12bn of Iranian assets sit frozen abroad and their release is one of the four conditions Tehran attached to reopening the strait, which means the central bank cannot defend the rate with money it formally owns. A further 23 million barrels of crude is loaded onto ships trapped inside the Gulf, so part of Iran's liquid wealth is on water it cannot move.

Escalation

Up on domestic pressure, and the direction is set by the export figure rather than by the fighting. With no crude loaded in September there is no mechanism by which the rate recovers while the blockade holds, so the currency now functions as a running count of how long Tehran can wait. The specific trigger to watch is the exchange rate in the days after any announcement from the Oman round, because the 2013 precedent says the rate moves on a credible agreement before any oil moves.

What could happen next?

Consequence
A loss of about an eighth of the currency's dollar value in 27 days raises the landed cost of imported staples and medicines inside one buying cycle, well ahead of any wage adjustment.
Immediate · Assessed
Meaning
Two records in 27 days turns the rate into a measure of how long the blockade is expected to hold, rather than a reflection of this month's trade.
Immediate · Assessed
Risk
A collapsing currency widens the gap between subsidised domestic fuel prices and import parity, which raises both the cost of holding the price and the risk of lifting it.
Short term · Suggested
Opportunity
On the 2013 precedent the rate would strengthen on a credible agreement about the strait before any cargo loaded, which gives Tehran a fast and visible domestic reward for settling.
Short term · Assessed

Source Landscape

This story draws on mixed-leaning sources from United States

United States

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Primary parallel: The rial fell hard after the United States left the nuclear agreement in 2018 and crossed 1 million to the dollar on the open market for the first time in March 2023, in both cases moving on expectations about sanctions enforcement rather than on any change in the money supply that week.

The open-market rate has behaved as a sanctions barometer for eight years, which is why a record set 27 days after the previous one is a reading on the blockade rather than on monetary policy.

Counter-parallel: The rial strengthened after the interim Geneva accord of November 2013 before any sanctions had actually been lifted, purely on the expectation of relief. The same mechanism that produced this record can reverse it, and on that precedent a credible agreement on the strait would move the rate before a single barrel loaded.

Iran imports staple foodstuffs, animal feed and pharmaceutical inputs, all priced in dollars, so a loss of roughly an eighth of the currency's dollar value in 27 days raises the landed cost of those goods inside a single buying cycle. Wages do not adjust at that speed, which is how an exchange-rate move becomes a household cost in weeks rather than quarters.

Domestic fuel in Iran is sold far below import parity, and a collapsing currency widens the gap between the subsidised price and the real cost of supplying it, which raises the fiscal cost of holding the price and the political cost of lifting it. A government with no export receipts has fewer options on both sides of that trade-off than it had in June, when the same series stood at 1,762,000 rials to the dollar.

Consensus view: The Associated Press attributes the fall to the American naval blockade on Iranian oil and to sanctions imposed since the war began in February 2026. The quote is an open-market rate from Tehran dealers rather than a central bank rate, so it measures what an Iranian with dollars to buy actually pays, and it moves on expectations about the blockade faster than any trade figure can.

Counter-view: Iran runs more than one exchange rate. The Central Bank of Iran allocates foreign currency at preferential rates for essential imports, so the dealer quote overstates the landed cost of subsidised food and medicine for importers who can obtain an allocation. On that reading the gap between the two rates is the rationing mechanism, and the open-market figure measures the marginal buyer rather than the household.

Key tension: How much of Iran's import demand still clears at the preferential rate, which decides whether this quote describes household prices or only the queue outside the allocation system. Iran publishes no allocation data.

Sources:Associated Press (via PBS NewsHour)·Associated Press (via PBS NewsHour)

Mentions:Iran →Tehran →Central Bank of Iran →United States →Geneva →Associated Press →

First Reported In

Update #180 · Washington left Iraq as it answered Tehran

Associated Press (via PBS NewsHour)· 1 Oct 2026

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Causes and effects

Caused by

Iran loads no crude for a whole month

With no crude loaded in the Gulf all month, the export revenue that would defend the rial is not arriving.

Occurred 30 Sept 2026

Read story →

This Event

Rial passes 2.5 million to the dollar

The currency lost about an eighth of its dollar value in 27 days, which puts imported food and medicine further out of reach for anyone paid in rials.

Led to

Rial hits new low on Day 100

The same depreciation recorded at 1,762,000 rials per dollar on 7 June 2026 reached more than 2.5 million on 29 September, so the September record continues that series rather than restating it.

Occurred 7 Jun 2026

Read story →

Different Perspectives

Bulgarian government

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Radoslaw Sikorski

Poland's foreign minister challenged Elon Musk on X after SpaceX capped Ukraine's Starshield terminals on 14 October. Poland pays about $50m a year for Ukraine's Starlink subscriptions, so Warsaw speaks as the paying customer as well as the ally.

Andy Burnham

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Ministry of External Affairs (India)

India's foreign ministry said after the 16 September House vote that New Delhi would take all necessary measures to protect its trade.

European Council

EU leaders on 15-16 October rejected a US idea to hand Washington the roughly €200bn of frozen Russian assets held in Europe, and Kaja Kallas said the decision belongs to Europeans. The same summit put off a decision on financing Ukraine, saying leaders "will revert to the issue in a timely manner".

Donald Trump

Trump signed the 16 October order that sets the Graham Act's duties and waives them under section 115(a), with a certification sent to Congress. He says the United States has not stopped sharing intelligence with Ukraine, and on 11 October he said both sides had agreed to halt attacks on energy infrastructure.

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