Economy April 30, 2026 07:13 AM

Bank of England Issues Three-Path Forecast Amid Iran War Uncertainty

Monetary Policy Report presents scenarios ranging from a short-lived energy shock to prolonged high energy costs and large second-round inflation effects

By Marcus Reed
Bank of England Issues Three-Path Forecast Amid Iran War Uncertainty

Facing heightened uncertainty from the Iran war, the Bank of England abandoned a single baseline projection in its April 2026 Monetary Policy Report and set out three scenario-based outlooks. The paths differ by assumed energy-price trajectories, household spending responses and the size of second-round inflation effects, producing a range of outcomes for inflation, interest rates, growth and unemployment over the next three years.

Key Points

  • The Bank of England replaced a single forecast with three scenarios because of uncertainty from the Iran war, varying by energy price paths and household behaviour.
  • Scenarios A and B see inflation peaking at just over 3.5% at the end of 2026 and then moving toward 2%, but both require interest rates higher than markets expected in February.
  • Scenario C models a sharper, prolonged energy-price rise with inflation above 6% in early 2027 and requires a Bank Rate "materially higher" than market expectations, resulting in weaker growth and higher unemployment; energy, consumer spending and labor markets would be most affected.

LONDON, April 30 - Citing the uncertainty generated by the Iran war, the Bank of England presented three separate forecast scenarios in its April 2026 Monetary Policy Report rather than publishing a single central projection. The report maps out three distinct paths for inflation, interest rates and economic activity depending on how energy costs evolve and how households react.

Scenario A - Least inflationary

Under the least inflationary path, oil and gas prices are assumed to track the levels implied by futures curves. Household spending is projected to fall by more than historical relationships with real incomes would suggest, reflecting a shift in priorities in household budgets. The report assumes this combination - a relatively short-lived energy shock plus softer demand - is sufficient to prevent notable second-round inflation effects. Inflation is forecast to peak at just above 3.5% at the end of 2026, then ease back to slightly below 2% around three years out. The Bank judges that achieving those outcomes would require interest rates over the next three years to be higher than markets were expecting in February.

Scenario B

In the middle path, energy prices peak at levels similar to those in Scenario A but remain elevated for longer. Household saving and spending behaviour is assumed to follow historical patterns rather than the larger spending shifts assumed in Scenario A. Second-round effects in this scenario are described as modest. Inflation in this projection likewise peaks at a little over 3.5% at the end of 2026 before declining to close to 2%. As with Scenario A, the Bank indicates that interest rates across the next three years would need to be higher than markets had expected in February.

Scenario C - Most inflationary

The third and most inflationary scenario assumes energy prices rise more sharply than in Scenarios A or B and remain high for an extended period. That prolonged increase in energy costs produces much stronger second-round effects than in Scenario B. Inflation in this pathway is projected to top 6% in early 2027 and to stand at about 2.5% - above the Bank's 2% target - at the end of the three-year horizon. To steer inflation back toward target under this scenario, the Bank says Bank Rate would need to be "materially higher" than financial markets had priced in during the 15 days to April 22. The outcome implied by that course would be weaker economic growth and higher unemployment.

The Bank's use of scenario analysis reflects the range of possible outcomes driven by energy-price dynamics and household responses, and underscores the potential need for tighter policy in several plausible paths.


Summary of scenarios

  • Scenario A - Energy follows futures curves; larger-than-expected drop in household spending; peak inflation a little above 3.5% end-2026; falls to just below 2% in about three years; interest rates higher than markets expected in February.
  • Scenario B - Energy peaks similarly but stays higher; household saving mirrors past behaviour; modest second-round effects; inflation peaks a little over 3.5% end-2026; returns close to 2%; interest rates higher than markets expected in February.
  • Scenario C - Sharper, prolonged rise in energy prices; much stronger second-round effects; inflation peaks above 6% in early 2027 and is around 2.5% at the three-year mark; Bank Rate would need to be "materially higher" than market expectations in the 15 days to April 22, leading to weaker growth and higher unemployment.

Risks

  • Uncertainty from the Iran war drives wide variation in energy prices, posing risks to energy-intensive sectors and inflation outcomes.
  • Stronger second-round inflation effects under prolonged high energy prices could force materially higher interest rates, increasing recession risk and unemployment in broader domestic sectors.
  • Household spending and saving responses that deviate from historical patterns add uncertainty to demand, affecting consumption-exposed industries and financial market expectations for rates.

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