The Bank of England has chosen to stand still at 3.75% for now, but its warning that the Iran war could trigger rate increases in the months ahead has changed the calculus for UK households, businesses, and investors. The monetary policy committee’s unanimous hold decision was widely anticipated, but the hawkish language accompanying it surprised some analysts who had expected a more neutral tone. Officials made clear that the conflict’s impact on energy prices represented a genuine and potentially lasting threat to UK inflation.
Before the outbreak of hostilities, UK monetary policy had been on a relatively clear trajectory toward rate cuts, with inflation cooling and economic activity subdued. The war between the United States, Israel, and Iran has changed that trajectory dramatically. Global energy prices have surged, the inflation outlook has worsened, and the Bank’s internal debate has shifted toward caution and vigilance.
Governor Andrew Bailey described the Iran conflict as an external shock the Bank had not anticipated and could not control directly. He said the most effective response would be a resolution of the conflict and a restoration of energy supply chains, but acknowledged that was beyond the Bank’s power to achieve. In the meantime, the Bank would monitor conditions carefully and act through interest rate policy if the inflation situation demanded it.
Financial markets interpreted the statement as clearly hawkish, with UK gilt yields rising, the FTSE 100 falling, and the pound gaining against the dollar. Traders moved to price in at least one and possibly two rate hikes before the end of 2025. Analysts pointed to rising mortgage rates as an early sign of the tightening cycle beginning to bite.
The government’s economic agenda faces a more challenging environment than it had hoped for. Labour’s growth plans were premised on falling borrowing costs, and a rate-hiking cycle would represent a significant headwind. Chancellor Reeves is reportedly exploring targeted energy support measures to help households most exposed to the coming cost pressures.