ONS August CPIH: Will UK inflation fall below 3% by September?

By GlobeBids Editorial Desk | 13 August 2026

The Office for National Statistics will provide the decisive answer when it publishes the United Kingdom’s August 2026 inflation figures in September. The question is whether the annual CPIH rate will be below 3.0%—a threshold that could shape household budgeting, savings expectations, wage discussions and views on future Bank of England rate decisions.

The ONS is the official publisher of UK inflation and price-index statistics, including both CPI and CPIH. Its release calendar is the place to confirm the scheduled publication time and any timetable change. Until the August figure is published, the outcome remains uncertain: food prices, household energy costs, transport and housing-related components can all move the annual rate.

The August CPIH decision at a glance

• Question: Will the ONS report August 2026 annual CPIH inflation below 3.0%?
• Deadline: The scheduled ONS September 2026 inflation release, expected on 16 September 2026.
• YES outcome: The published August CPIH 12-month rate is lower than 3.0%.
• NO outcome: The published August CPIH 12-month rate is 3.0% or higher.
• Decisive result: The CPIH annual rate in the ONS August 2026 Consumer price inflation release.

This is a narrow test of one official number, not a judgement on whether every household feels prices are becoming affordable. Even if the rate falls below 3%, prices may still be higher than a year earlier; it would mean they are rising more slowly on the CPIH measure.

Why CPIH, rather than CPI, is the figure that matters here

CPIH means Consumer Prices Index including owner occupiers’ housing costs. It is broader than the better-known Consumer Prices Index, or CPI, because it includes a measure of the costs associated with owning, maintaining and living in a home.

The difference matters when housing-related costs move differently from the rest of the consumer basket. CPI focuses on the prices paid for a representative selection of goods and services. CPIH uses much of the same foundation, but adds owner occupiers’ housing costs and related elements that can shift the annual reading.

For this forecast, a fall in CPI alone would not settle the question. The only relevant figure is the ONS-published August 2026 CPIH 12-month rate. Readers comparing headlines should therefore check that the statistic is labelled CPIH and refers to August, rather than a separate CPI estimate or a monthly price change.

Inflation slowing is not the same as prices falling

Annual inflation compares the level of prices with the same month a year earlier. A CPIH reading below 3% would indicate slower year-on-year price growth than a reading at or above 3%, but it would not mean that the overall cost of living had returned to an earlier level.

That distinction is especially important for households dealing with bills that have risen over several years. The pace of increase can ease while the total paid at the supermarket, on transport or for housing remains under pressure.

Food, energy and housing costs can shift the August result

The August reading will reflect a changing mix of prices rather than one single household bill. Food inflation matters because groceries are frequent purchases and small price changes are noticed quickly. Energy costs matter because utility tariffs and fuel prices can have broad effects on household spending and on business costs that later feed into consumer prices.

Housing-related costs are also central to CPIH. Because owner occupiers’ housing costs are included in the index, movements in that component can make CPIH differ from CPI even when food, fuel and services are following similar broad trends.

Several forces could support a result below 3%:

• Lower or more stable energy and motor-fuel prices compared with August 2025.
• Softer food-price increases across commonly purchased items.
• Reduced pressure from goods prices, including imported products.
• Slower growth in services and housing-related components.

Several forces could keep CPIH at 3% or higher:

• A rise in energy, fuel or food costs during the comparison period.
• Persistent services inflation linked to wages, hospitality, travel or insurance.
• Housing-cost growth that remains firmer than other parts of the index.
• A weaker comparison with August 2025 that makes the annual rate harder to reduce.

None of these factors alone guarantees the outcome. Inflation releases combine thousands of prices and weights, so the final annual rate can differ from the impression created by one highly visible bill.

What a sub-3% CPIH reading could mean for household budgets

A below-3% result would be a sign that the average pace of price growth, as measured by CPIH, had eased beneath the threshold. That could offer some relief to households planning regular spending, particularly if it reflects slower increases in essentials such as food, utilities or transport.

It may also influence expectations around pay. Workers and employers often look to inflation when considering whether wage increases are keeping up with living costs. A lower CPIH reading could reduce pressure at the margin, though individual pay outcomes depend on contracts, sector conditions and productivity as well as inflation.

Savers and borrowers should avoid treating one release as an automatic signal for interest rates. Savings returns, mortgage pricing and loan costs are set by providers and market conditions, not directly by the monthly CPIH release. Still, inflation data feed into the wider debate about how restrictive Bank of England policy needs to remain.

For a household, the practical question is less about the headline alone and more about which costs are changing. A family whose rent, insurance or food bill is rising faster than the national average may not experience a below-3% CPIH figure as immediate relief.

Why the Bank of England will watch the details, not only 3%

The Bank of England’s inflation target is expressed in terms of CPI, rather than CPIH. That means the central bank will not use the CPIH threshold in this forecast as a standalone policy trigger. However, CPIH remains an important official measure of living-cost inflation and can provide useful context because it includes owner occupiers’ housing costs.

Bank policymakers typically assess the breadth and persistence of inflationary pressure. Services prices, wage growth, domestic demand, inflation expectations and energy-cost changes can matter as much as the headline rate. A single lower number may be encouraging, but a durable trend generally carries more weight for rate decisions.

The two measures can therefore point to slightly different household and policy narratives at the same time. CPI may be more directly tied to the formal target, while CPIH can better reflect the housing-cost dimension that many readers associate with day-to-day financial pressure.

The public result that settles the outcome

The result will be resolved from the ONS release covering consumer price inflation for August 2026. The ONS publishes the UK’s official CPI and CPIH statistics on its inflation and price indices pages, while its release calendar lists scheduled publication dates.

The test is exact:

• If August 2026 CPIH annual inflation is 2.9% or lower, the outcome is YES.
• If it is 3.0% or higher, the outcome is NO.
• The CPI figure, core inflation figures, monthly changes and later revisions do not replace the published August CPIH 12-month rate for this question.

The important next check is the September ONS release itself. Look for the August reference month, the CPIH label and the 12-month percentage rate before drawing conclusions about household costs or the wider inflation path.

Source: Office for National Statistics