TFM EXCLUSIVE
The European Central Bank raised interest rates for the second time this year, lifting its deposit rate to 2.50% as the war involving Iran drives oil and gas costs sharply higher and pushes euro-area inflation back above 3%. The decision exposes a difficult monetary-policy problem: the ECB cannot create energy supplies or secure the Strait of Hormuz, but it can try to stop an external price shock from becoming entrenched in wages, expectations and the wider European economy.
BERLIN — September 10, 2026. The European Central Bank raised interest rates by a quarter percentage point on Thursday, delivering its second increase of the year as policymakers confronted a renewed inflation shock originating not in European wages or domestic demand, but in the energy markets transformed by the continuing war involving Iran.
The ECB increased its deposit facility rate from 2.25% to 2.50%. Its main refinancing rate rises to 2.65%, while the marginal lending facility moves to 2.90%.
The move followed a 25-basis-point increase in June and a pause in July. The June increase had lifted the deposit rate from 2.00% to 2.25%, with the ECB explicitly identifying the Middle East conflict and higher energy prices as a threat to the inflation outlook.
Thursday’s increase had been widely anticipated by investors.
What is considerably less certain is what comes next.
The ECB is now fighting an unusual form of inflation—one in which the central bank has little control over the original cause.
It cannot lower the price of crude oil.
It cannot increase European gas storage.
It cannot restore LNG shipments through disrupted Middle Eastern trade routes.
And it cannot end the Iran conflict.
What higher interest rates can do is suppress the second stage of an inflation shock: businesses passing energy costs into broader prices, workers demanding compensation through wages, consumers adjusting expectations upward and financial markets beginning to assume that inflation will remain permanently above the ECB’s target.
That distinction is central to understanding Thursday’s decision.
Inflation Is Back at 3.3%—But the Composition Matters
Euro-area inflation accelerated to an estimated 3.3% in August, from 2.9% in July, according to Eurostat.
That is substantially above the ECB’s medium-term target of 2%.
But the headline number alone does not tell the most important part of the story.
Energy prices rose 14.3% year over year in August, accelerating sharply from 10.3% in July.
Meanwhile, inflation excluding energy remained at just 2.2%.
Services inflation actually slowed to 3.0% from 3.3%, while food, alcohol and tobacco inflation was only 1.2%.
That composition matters.
Europe is not currently experiencing the same broad inflationary pattern that defined the aftermath of the pandemic and the 2022 energy crisis.
The latest acceleration is overwhelmingly associated with energy.
That makes the ECB’s decision more complicated than a conventional response to an overheating economy.
Raising borrowing costs will not directly reduce the price of a barrel of Brent crude.
Instead, the ECB is attempting to prevent the first-round energy shock from spreading.
The Iran War Has Rewritten Europe’s Inflation Outlook
Oil markets demonstrate the scale of the problem.
Brent crude climbed roughly 4% on Thursday to about $105 a barrel, while U.S. West Texas Intermediate moved above $100 as attacks and shipping disruptions across the Middle East intensified concerns about global supply.
European natural gas has also returned to levels that would have appeared extreme only months ago.
Dutch TTF gas recently traded around €79 per megawatt-hour, after breaching €80, while European storage levels remain considerably below their normal seasonal position.
That is particularly dangerous for Europe because its exposure is broader than petrol prices at the pump.
Natural gas feeds into electricity generation, industrial production, heating, chemicals, fertilisers, transport and manufacturing.
Higher energy prices therefore behave almost like a tax on the European economy.
Households have less disposable income.
Companies face higher operating costs.
Energy-intensive manufacturers become less competitive.
Governments come under pressure to subsidise household bills.
And eventually companies must decide whether to absorb those costs through lower margins or transfer them to customers through higher prices.
The ECB’s real concern begins at that moment.
The Critical Question Is Whether Energy Contaminates the Rest of Inflation
Earlier in the summer, there were reasons for optimism.
The ECB’s third-quarter Survey of Professional Forecasters found that respondents expected the indirect impact of the Middle East energy shock to add approximately 0.2 percentage points to inflation in 2026, with much smaller effects thereafter.
Estimated second-round effects through wages and inflation expectations were below 0.1 percentage points for both 2026 and 2027.
But that assessment was partly built on an assumption that energy-market disruption would ease.
The renewed rise in oil above $100 and severe pressure in European gas markets changes the calculation.
Duration matters almost as much as magnitude.
A brief energy shock can disappear from inflation statistics with relatively little permanent damage.
A shock that lasts six, nine or twelve months gives companies more time to reset prices, unions more reason to demand compensation and households more reason to doubt whether inflation will return to 2%.
That is the threshold the ECB is trying to defend.
The ECB Has Raised Its Inflation Forecasts Again
The central bank now expects headline euro-area inflation to average:
3.0% in 2026
2.5% in 2027
2.1% in 2028
The 2027 projection is particularly significant.
It was raised from 2.3% in June, meaning the ECB now expects the energy shock to influence inflation for longer than previously anticipated.
Underlying inflation is projected at 2.5% in 2026, 2.6% in 2027 and 2.3% in 2028.
That leaves inflation above the ECB’s target throughout the forecast period.
The numbers do not suggest Europe is returning to the double-digit inflation crisis experienced in 2022.
But they do suggest something more uncomfortable for monetary policymakers: inflation could remain moderately but persistently too high.
Central banks have historically been particularly sensitive to that scenario because prolonged overshooting can gradually change behaviour.
Once businesses automatically assume costs will rise, workers routinely negotiate on the expectation of higher inflation and investors demand larger inflation premiums, restoring price stability becomes more expensive.
Why Raise Rates When Inflation Is Coming From Oil?
This is the fundamental economic argument behind Thursday’s decision.
Interest rates cannot eliminate the original supply shock.
But the ECB can influence the conditions under which that shock spreads.
Higher rates make mortgages, corporate loans and other forms of financing more expensive.
That reduces some investment and consumption.
It can limit companies’ ability to raise prices without losing demand.
It can restrain credit creation.
And, crucially, a credible tightening response signals that the ECB will not tolerate a permanent upward shift in inflation.
The bank is therefore not really trying to push oil from $105 back to $80.
It is trying to ensure that $105 oil does not turn into 4% wage growth, higher service prices, rising inflation expectations and another self-reinforcing inflation cycle.
That makes Thursday’s decision partly about economics and partly about credibility.
Europe Is Strong Enough—for Now—to Absorb Higher Rates
The ECB also has something it lacked during some earlier stages of Europe’s energy crisis: an economy performing better than feared.
Eurostat reported that euro-area GDP expanded 0.6% in the second quarter of 2026 compared with the previous quarter, after being flat in the first quarter. On a year-over-year basis, GDP was 1.2% higher.
The ECB has now raised its 2026 growth projection to 0.9%, from 0.8%, and expects growth of 1.4% in 2027 and 1.5% in 2028.
The headline GDP figure, however, requires some caution.
Ireland’s multinational-heavy economy made an unusually large contribution to second-quarter growth. Excluding Ireland, estimates suggest the underlying euro-area expansion was closer to 0.3%.
That is still growth.
But it is not a booming economy.
The ECB is therefore tightening into an environment that is resilient rather than exceptionally strong.
The Labour Market Is Giving Lagarde Some Protection
Another reason the ECB can move cautiously rather than aggressively is the absence, so far, of clear evidence of a wage-price spiral.
Euro-area unemployment stood at 6.4% in July, only slightly above the 6.3% rate recorded a year earlier.
At the same time, ECB wage indicators have shown negotiated wage growth moderating.
Earlier ECB data suggested negotiated wage growth of around 2.6% for 2026, substantially below the levels that would signal an uncontrolled second-round inflation shock.
That distinction separates 2026 from 2022.
The danger now is prospective rather than fully embedded.
The ECB appears to be acting before workers and companies collectively conclude that higher energy inflation is permanent.
Financial Markets Are Already Tightening Beyond the ECB
The central bank is not acting in isolation.
European bond markets are tightening financial conditions themselves.
Germany’s benchmark 10-year government bond yield climbed to around 3.48% on Thursday, its highest level since 2011, as investors reacted to inflation concerns, global bond-market pressure and expectations of additional monetary tightening.
That matters because the ECB’s official policy rate is only one part of the cost of money.
Governments borrow through bond markets.
Corporate financing is priced against sovereign yields.
Mortgage rates respond to longer-term financial conditions.
When yields rise sharply even before central banks complete their tightening cycle, monetary restraint can become stronger than the headline policy rate suggests.
This creates a second risk for Frankfurt.
The ECB could eventually discover that it has tightened too much just as the original energy shock begins to fade.
Europe Is Facing a Supply Shock and a Demand Response at the Same Time
The conflict creates what economists call a difficult policy trade-off.
Higher oil and gas prices simultaneously:
increase inflation and reduce economic growth.
The textbook response to demand-driven inflation is relatively straightforward: raise interest rates and cool demand.
Supply-driven inflation is more complicated.
Tighter monetary policy can reduce the secondary inflationary effects, but it can also amplify the economic damage caused by the original supply shock.
A factory paying dramatically more for energy may already cut production.
A household paying higher electricity and fuel bills may already reduce discretionary spending.
Raising borrowing costs on top of those pressures adds another restraint.
The ECB must therefore judge how much economic pain is necessary to prevent inflation expectations from deteriorating.
That is why President Christine Lagarde continues to emphasise a meeting-by-meeting, data-dependent approach rather than promising a predetermined sequence of increases.
Could the ECB Raise Rates Again?
Markets increasingly think it could.
Before Thursday’s decision, Deutsche Bank had already shifted its forecast to include another 25-basis-point increase in December, which would take the deposit rate to 2.75%.
Its reasoning was essentially that a more prolonged energy shock undermines the argument that one additional increase would be sufficient.
Market pricing after Thursday’s move also points toward further tightening, although those expectations can shift rapidly with oil prices and geopolitical developments.
Three variables are now likely to determine the next decision.
The first is energy.
If Brent remains above $100 and European gas stays near recent highs, the ECB will have to assume that energy’s inflationary impact will last longer.
The second is core inflation.
If inflation excluding energy and food stays relatively contained, the ECB can argue that its strategy is working.
If core inflation begins rising materially, however, it would provide stronger evidence that the energy shock is spreading.
The third is wages.
A significant acceleration in negotiated pay would be among the clearest signs that households expect the inflation shock to persist.
If all three move higher together, a deposit rate above 2.50% becomes much easier for the ECB to justify.
The Bigger Risk Is No Longer the First Oil Shock
The Founders’ analysis suggests the ECB’s greatest concern is not today’s energy inflation in isolation.
Europe already knows what expensive oil and gas can do.
The more consequential question is whether 2026’s geopolitical shock changes the behaviour of the wider economy.
That is the lesson central banks took from the inflation crisis earlier this decade.
An external shock becomes much harder to reverse once it migrates from commodities into wages, rent negotiations, service pricing, business contracts and household expectations.
The ECB’s June rate increase was an insurance policy against that possibility.
Thursday’s second hike indicates that the insurance is becoming more expensive.
There Is Also a Competitiveness Problem Monetary Policy Cannot Solve
Europe’s challenge is larger than inflation.
Persistently expensive energy puts European industry at a structural disadvantage against economies with cheaper supplies.
Chemical producers, steelmakers, manufacturers, logistics companies and other energy-intensive businesses can face materially higher costs even after inflation statistics eventually improve.
Higher ECB rates cannot solve that problem.
In fact, companies simultaneously facing expensive energy and expensive capital may delay investment precisely when Europe needs more spending on energy infrastructure, defence, artificial intelligence and industrial modernisation.
Europe could therefore achieve lower inflation while weakening its long-term productive capacity.
That is a policy trade-off Frankfurt cannot resolve alone.
Energy security, LNG infrastructure, electricity-market design, fiscal policy and industrial strategy increasingly sit alongside interest rates as components of European economic stability.
What Thursday’s Decision Really Signals
The significance of the September rate increase goes beyond 25 basis points.
The ECB is effectively saying that it will not automatically look through a geopolitical energy shock merely because the original cause sits outside monetary policy.
If the shock lasts long enough to threaten medium-term price stability, Frankfurt will respond.
That represents an important shift from asking whether today’s inflation is temporary to asking whether temporary inflation could become permanent.
For businesses and investors, it means European interest-rate expectations are becoming tied increasingly closely to events thousands of kilometres from Frankfurt.
An attack on shipping near the Strait of Hormuz can raise crude prices.
Higher crude prices can lift euro-area inflation.
Higher inflation can change ECB forecasts.
And those forecasts can ultimately determine mortgage costs in Madrid, corporate financing in Paris, sovereign yields in Rome and investment decisions in Frankfurt.
The Iran war has therefore entered European monetary policy through the price of energy.
The ECB’s second rate increase of 2026 is an attempt to prevent it from moving any further.
For now, the evidence shows an inflation shock still concentrated largely in energy.
The danger begins if it stops being one.
That is the line the European Central Bank is now defending.