ECB raises key interest rate by 25 basis points to 2.5% in Berlin

Decision in Berlin

The European Central Bank raised its three key interest rates by 25 basis points on 10 September 2026, lifting the benchmark rate from 2.25% to 2.5%. The decision took place during the Governing Council's annual monetary policy meeting held in Berlin. The move represents the second rate increase enacted by the central bank in 2026, pushing borrowing costs to their highest level since March 2025. The ECB had previously increased rates by 25 basis points on 11 June 2026, which was the first rate increase since September 2023, before leaving rates unchanged at its July meeting. The Governing Council stated that the increase is intended to return inflation to its 2% medium-term target.

Energy costs drive inflation

The decision follows an acceleration in price increases across the euro area linked to conflict in the Middle East. Eurozone headline inflation reached 3.3% in August 2026, up from 2.9% in July, marking its highest rate since September 2023. Energy inflation increased from 10.3% in July to 14.3% in August. In commodity markets, Brent crude traded near $100 per barrel after rising approximately 14% since July, while European natural gas climbed more than 30% toward €80. In Portugal, the National Statistics Institute reported that August inflation reached 3.3%, up 0.3 percentage points from July, an increase driven almost entirely by diesel fuel costs. The central bank addressed ongoing economic risks in its policy statement following the decision.

The outlook remains highly uncertain, with upside risks to inflation and downside risks to economic growth.

Central bank stance and communications

Financial markets had anticipated the 25-basis-point increase prior to the September gathering, turning attention toward policy expectations for the rest of 2026. ECB President Christine Lagarde noted following the July meeting that September data would inform future interest rate decisions. Lead foreign exchange strategist at Ebury, Roman Ziruk, reviewed the central bank's communication strategy following the rate announcement.

We believe it is unlikely that Lagarde will commit to an interest rate trend, as this would clash with her tone, given that in June she dismissed the label of a preventive hike and in July indirectly pointed to a new increase in September, maintaining her mantra of data dependence.

Ziruk stated that raising rates beyond 2.5% creates risks for economic growth, arguing that higher borrowing costs are inappropriate when inflationary pressures originate on the supply side. He added that elevated rates increase stress on bond markets at a time when public finances face budget pressures.

Outlook for future monetary policy

Analysts from Ebury and XTB noted that markets fully priced in this second rate adjustment, though some investors foresee potential further increases in December 2026 or March 2027. Michael Krautzberger, global chief investment officer of public markets at Allianz Global Investors, assessed the current policy rate environment.

Holding rates steady is, in itself, a form of easing.

Krautzberger noted that further increases would require an acceleration in demand-driven inflation for the central bank to justify restrictive policy. Ziruk estimated that the September move marks the conclusion of rate increases, though he stated the outlook depends on developments surrounding the Middle East conflict.