Will an expected acceleration in UK CPI pave the way for a BoE interest rate hike in November?

• Markets expect UK CPI inflation to reach its highest level since December last year, rising to 3.4% YoY in September from August’s 3.1%.
• As elevated energy costs feed through to the wider economy, core inflation is also expected to pick up.
• For the BoE, the readings could supply the decisive case for monetary tightening at its November meeting.

Expectations for the Bank of England’s next policy decision are in focus ahead of the September Consumer Price Index (CPI) release. The United Kingdom (UK) Office for National Statistics (ONS) is expected to publish the figures on Wednesday at 06:00 GMT, alongside the Producer Price Index (PPI) and Retail Sales report.

Investors are likely to scrutinise the consumer inflation readings for further clues to the Bank of England’s (BoE) forthcoming monetary policy decision. While Governor Andrew Bailey and some other BoE officials have highlighted the need for higher interest rates to contain inflationary pressure, they have offered little clarity on when the next move could come. UK inflation readings in line with market forecasts might reinforce expectations of a November rate increase, potentially lifting speculative demand for the British Pound (GBP).

Will the next UK inflation report show stronger price pressures?

Annual consumer inflation is forecast by the market consensus to climb from 3.1% in August to 3.4% in September. On a monthly basis, however, the expected increase of 0.3% would mark a slowdown from August’s 0.5% rise.

A more modest acceleration is anticipated in core inflation, which strips out volatile energy, food, alcohol and tobacco prices. Forecasts put September’s Core CPI at 2.8%, compared with 2.6% in August. That would provide further evidence that the energy shock arising from the Middle East conflict is feeding into the wider economy.

Since July, crude prices have climbed nearly 50%, including a gain of more than 10% so far in October. At the time of writing, Brent Oil is trading above $108.00 a barrel, a five-month high. With regional powers becoming increasingly entangled, a return to pre-war price levels appears unlikely anytime soon. This backdrop suggests inflationary pressure could remain elevated for an extended period, leaving central banks at risk of falling behind the curve unless they respond promptly.

Despite these conditions, the Bank of England remains among the few major central banks that have yet to tighten monetary policy in 2026. Calls for a rate increase have come from some BoE officials. At last week’s International Monetary Fund (IMF) summit in Bangkok, Governor Bailey voiced frustration over inflation remaining above target, strengthening investors’ confidence that some tightening will come before year-end.

The latest UK releases have lent support to that assessment. Tuesday’s ILO Unemployment Rate pointed to labour-market resilience, even as vacancies fell and the number of claimants increased more than expected. Monthly Gross Domestic Product (GDP) also delivered a positive surprise last week: August output expanded unexpectedly, supported by a strong industrial-sector performance. Taken together, these developments create favourable conditions for a quarter-point rate increase at next month’s meeting.

Could the UK Consumer Price Index report strengthen GBP/USD?

Among the major currencies, the British Pound ranks as one of this week’s strongest performers. Upbeat UK releases have improved confidence in the economic outlook while reducing worries about the cost of tax-relief measures pledged by Prime Minister Andy Burnham’s cabinet. 

In their assessment of the latest economic releases, Commerzbank analysts say the data “gives the Bank of England room to raise rates without running the risk of putting additional pressure on an already weakening economy (...) Also takes some pressure off the Chancellor, who remains committed to reducing the budget deficit.”

In a note, Commerzbank adds: “How this can be achieved while at the same time providing relief to households and businesses facing high energy costs should become clearer when the budget is presented at the end of the month,”

With those worries receding for the time being, the Pound’s main support this week continues to come from robust UK figures and growing expectations that the BoE will finally raise rates in November. By comparison, the US Dollar remains weak as investors scale back wagers on consecutive Federal Reserve (Fed) rate increases. The Euro is also under pressure after protests in Paris turned violent, prompting the government to introduce curfews in several cities.

The near-term technical picture for GBP/USD is bullish on the 4-hour chart. A successful breakout above the descending resistance line drawn from the late August highs confirms that bias; the line was retested on Monday. Momentum signals offer support, with the Relative Strength Index (14) holding above 60. However, a Moving Average Convergence Divergence (MACD) reading that is virtually flat around zero indicates that the uptrend remains fragile.

The zone stretching from Friday’s 1.3370 high to the 22 September high near 1.3400 is likely to test buyers’ conviction. A confirmed move above these levels would shift attention to 1.3467, the 61.8% Fibonacci retracement of the August-October decline, followed by the former support area just above 1.3470, marked by the lows of 2 and 4 September.

For now, sellers are being held back by support around 1.3295, where the previously mentioned trendline meets the former range ceiling. A move back below this level would leave the year-to-date lows around 1.3140 exposed.