EconToMarks Deep Dive · 19 August 2026
UK CPI inflation rises to 2.9% in July 2026
UK CPI inflation rose to 2.9% in the 12 months to July 2026 from 2.6% in June, while CPIH rose to 3.1%. The release is useful for analysing real incomes, the Bank of England’s policy trade-off and the distinction between headline and underlying inflation.
What happened
ONS reported that CPI prices rose 0.3% between June and July 2026, taking the annual CPI rate to 2.9%. CPIH annual inflation rose to 3.1%, while core CPI annual inflation was unchanged at 2.6%. Housing and household services and furniture contributed upward pressure, while transport partly offset the rise.
Why it matters
CPI is the measure used for the UK’s inflation target. Faster price growth can reduce real purchasing power when wages do not keep pace and can make the Bank of England more cautious about reducing interest rates. The unchanged core rate also shows why one headline figure should not be read in isolation.
Relevant theory
Connect the event to the syllabus.
Key evidence
Annual CPI inflation
UK CPI inflation was 2.9% in July 2026, up from 2.6% in June.
Monthly CPI change
Consumer prices rose 0.3% between June and July 2026.
CPIH inflation
CPIH annual inflation rose to 3.1% in July 2026 from 2.8% in June.
Core CPI inflation
Core CPI annual inflation was unchanged at 2.6%, providing a separate signal about underlying price pressure.
Best diagram
AD/AS diagram chosen according to whether inflation pressure is demand-pull or cost-push
- 1Identify the likely cause of the inflation before choosing the curve shift.
- 2If stronger aggregate demand is the main cause, draw AD shifting right and show a higher price level with higher real output in the short run.
- 3If higher production costs are the main cause, draw SRAS shifting left and show a higher price level with lower real output.
- 4Use the July data to explain why the policy response depends on persistence and composition rather than the headline CPI rate alone.
Chain of analysis
Step 1
Annual CPI inflation rises from 2.6% to 2.9%.
Step 2
The general price level is rising faster than in the previous month’s annual comparison.
Step 3
If nominal wages do not rise as quickly, households’ real purchasing power falls.
Step 4
Weaker real incomes can reduce consumption, while higher inflation can also keep borrowing costs restrictive for longer.
Step 5
Lower consumption and investment growth can weaken aggregate demand.
Step 6
The final effect on output depends on whether the inflation increase came from demand pressure or supply-side costs and how monetary policy responds.
Counter-case
When might the main chain weaken?
Use these conditions to challenge the initial mechanism rather than assuming the effect is automatic.
Headline versus core inflation
Core CPI remained at 2.6%, so the rise in headline inflation does not necessarily mean underlying domestic inflation pressure strengthened by the same amount.
Wage growth
Real incomes depend on the relationship between nominal wage growth and inflation. Households can still gain purchasing power if wages rise faster than prices.
Cause of inflation
Demand-pull inflation and cost-push inflation require different diagrams and create different growth trade-offs, so the composition of the CPI increase matters.
Policy lags
Interest-rate decisions affect demand with long and uncertain lags. The Bank of England must consider expected future inflation, not simply react to one monthly release.
Judgement
The economic effect depends on the source and persistence of inflation: a temporary supply shock has different implications from broad, demand-driven inflation, while wages and expectations determine the effect on real incomes.
Use it in a 15-marker
Use one or two pieces of the key evidence, explain the mechanism clearly, and use the diagram to anchor the causal chain. Keep evaluation focused on the condition in the judgement rather than adding unrelated points.
Use it in a 25-marker
Use the 2.9% CPI figure and the unchanged 2.6% core rate together. This lets you show precise evidence while evaluating the headline number. Build a chain through real incomes or monetary policy, then judge the likely effect using the cause of inflation, wage growth and the persistence of price pressure.
Practice question
Evaluate the view that a rise in inflation will necessarily reduce economic growth in the UK.
Related evidence
Compare this mechanism with another example.
13 August 2026 · United Kingdom
UK output per hour rose 0.7% year on year in Q2 2026
Higher productivity → more output per unit of labour → lower unit costs and higher productive capacity → LRAS can increase → stronger non-inflationary growth and scope for higher real wages
18 August 2026 · United Kingdom
UK unemployment was 4.9% in April–June 2026
Higher labour-market slack → weaker wage bargaining and household income growth → consumption pressure eases → AD may weaken and inflation pressure may fall
26 August 2026 · United States
U.S. GDP growth slows to 1.5% annualised in Q2 2026
Slower GDP growth → weaker contribution from parts of AD → slower increase in real output, although strong private domestic demand can mean the headline GDP figure understates underlying demand
30 July 2026 · United Kingdom
Bank of England holds Bank Rate at 3.75%
Higher or unchanged restrictive interest rates → borrowing remains expensive and saving relatively attractive → consumption and investment weaken → AD growth slows → inflation pressure may ease
Sources and update note
Figures are taken from the Office for National Statistics Consumer price inflation, UK: July 2026 release. CPI, CPIH and core CPI measure different aspects of price pressure and should be distinguished in analysis.