UK inflation: Will July CPI rise in the 19 August update?

By AtheneNet Economy Desk | 18 August 2026

The Office for National Statistics is scheduled to publish UK consumer price inflation figures for July 2026 on 19 August 2026. For households, the immediate question is whether the Consumer Prices Index 12-month rate will be higher than it was in June, signalling renewed annual price pressure and potentially influencing spending power, wage discussions, savings decisions and interest-rate expectations.

No July CPI estimate is assumed here against the latest official page. The result depends entirely on the initially published figures in the first ONS release, which provides a clear comparison and prevents later revisions from changing the outcome.

Read also: UK jobs and wages data due as pay and hiring face test

The forecast in one view

• Question: Will the July 2026 CPI 12-month rate exceed the June rate?
• Deadline: The forecast closes on 19 August 2026, before the scheduled release.
• YES: July’s initially published CPI annual rate is strictly higher than June’s rate cited in the release.
• NO: July’s rate is equal to or lower than the cited June rate.
• Deciding source: The ONS publication titled “Consumer price inflation, UK: July 2026.”

The comparison concerns the headline CPI 12-month rate, not CPIH, RPI, a private forecast or a subsequently revised figure.

What is known before the July inflation release

The ONS release calendar schedules “Consumer price inflation, UK: July 2026” for 19 August. That establishes the publication date and the official document that will decide the forecast.

What remains unknown is the direction of the annual CPI rate. Without the July release, there is no sound basis for claiming that inflation will definitely rise, remain unchanged or fall. Economic forecasts can provide context, but they cannot settle a question defined by the first official figures.

The ONS inflation bulletin normally reports several measures, including CPI, CPIH and RPI, alongside monthly price movements and the expenditure categories contributing to the change. Those details will matter because a headline rate alone does not reveal which household costs moved most or whether the pressure was broad-based.

How the July-to-June CPI comparison works

The forecast compares two annual rates presented in the same release: the percentage change in CPI between July 2025 and July 2026, and the June 2026 12-month rate cited by the ONS.

A higher annual rate does not necessarily mean that prices rose unusually quickly during July alone. Annual inflation changes when the latest monthly movement replaces the movement from the same month a year earlier. This is often described as a base effect.

For example, the annual rate could increase even after a small month-to-month decline if prices fell more sharply in July 2025. Conversely, prices could rise during July 2026 while annual inflation falls if the increase was smaller than the rise recorded a year earlier.

That is why readers should examine both figures in the release:

• The 12-month rate shows how the price index compares with the same month one year earlier.
• The monthly rate shows how the index changed between June and July 2026.

Reading them together separates the latest price movement from the effect of last year’s comparison month. It also guards against interpreting a change in annual inflation as a direct measure of what happened to every household bill during July.

CPI, CPIH and RPI measure different things

The settlement measure is the Consumer Prices Index. CPI tracks changes in the prices of a representative basket of goods and services, using expenditure weights to reflect their relative importance. It is widely used when discussing the headline UK inflation rate.

The Consumer Prices Index including owner occupiers’ housing costs, or CPIH, is broader. As its name indicates, it incorporates an estimate of the costs faced by owner-occupiers, as well as council tax. A CPIH rate can therefore move differently from CPI when housing-related components behave differently from the rest of the basket.

The Retail Prices Index is another, older measure with different coverage and calculation methods. It should not be substituted for CPI when resolving this forecast. A rise in RPI, or in CPIH, would not produce a YES result unless the July CPI 12-month rate itself is strictly above the June CPI rate cited in the first release.

These distinctions also matter for household decisions. Different contracts, benefits, pensions and financial products may refer to different inflation measures. Readers should check the index specified in any agreement rather than assuming that every inflation-linked payment follows headline CPI.

Which household costs could drive the movement

The ONS bulletin will show the expenditure divisions contributing to the change in inflation. These can include food and non-alcoholic beverages; housing, water, electricity, gas and other fuels; transport; restaurants and hotels; recreation and culture; clothing and footwear; and household goods and services.

The largest category by household spending weight is not automatically the largest driver in a particular month. A category’s contribution depends on both its weight and the size and direction of its price movement. The most useful evidence will therefore be the ONS contribution figures, expressed in percentage points, rather than isolated examples of products that became more expensive or cheaper.

Three checks reveal where pressure came from

Once the figures appear, readers can assess the movement by asking:

• Which expenditure divisions made the largest upward and downward contributions to the change in the annual rate?
• Did those categories also rise between June and July, or was the annual movement mainly a base effect?
• Was the change concentrated in a few volatile areas, or spread across routine household purchases and services?

This approach identifies the largest forces behind the result without treating one prominent bill or supermarket item as representative of the entire index.

What a higher rate could mean for household budgets

A YES result would mean annual CPI inflation accelerated in July. It would not prove that every household experienced the same increase, but it could reinforce the sense that incomes must stretch further to maintain the same standard of living.

Purchasing power depends on the relationship between prices and income. If wages or benefits rise more slowly than the prices relevant to a household, real spending power falls. The effect varies because renters, homeowners, drivers, commuters and families with different food or energy needs have different spending patterns.

A higher CPI rate could also feature in wage negotiations. Employees and employers may use inflation as one reference point when discussing pay, although affordability, productivity, labour demand and sector conditions also shape settlements. One monthly release does not determine pay awards by itself.

For savers, the relevant comparison is between the interest earned after tax and inflation. A savings account can pay a positive nominal return while still losing purchasing power if its effective return is below the applicable inflation rate. Individual tax treatment and account terms matter.

Interest-rate expectations may also react if the data changes the perceived persistence of inflation. However, the Bank of England considers a wider set of evidence, including services inflation, wage growth, economic activity and the outlook ahead. A higher July CPI figure would be one input, not an automatic guarantee of a particular rate decision.

The YES and NO paths have different signals

The YES path is narrow: the July CPI 12-month rate must be numerically higher than the June rate quoted in the first ONS July release. Even a rise of one decimal place would qualify if that is how the official figures are initially published.

A YES result would show that annual headline inflation strengthened for that comparison. The accompanying monthly rate and category contributions would then indicate whether the change reflected fresh price increases, base effects or a combination of both.

The NO path includes two possibilities. The annual rate could be unchanged, indicating no increase under the strict rule, or it could be lower. Equality is explicitly a NO result; this is not a forecast about whether inflation remains elevated in a broader economic sense.

A lower or unchanged annual rate would not necessarily mean household prices fell during July. The price level could still have increased month to month, and households could still face costs substantially above earlier years. It would mean only that the July 12-month CPI rate did not exceed the June comparator.

The first ONS figures will settle the result

Settlement uses the CPI 12-month rates initially published in the first ONS release for July 2026. Later corrections, revisions or methodological updates cannot reverse the outcome.

The forecast resolves YES only when the first release shows July strictly above June. It resolves NO when July is equal to or below June. If publication is delayed, the result remains pending until the designated ONS release supplies both figures.

The decisive next check is the ONS consumer price inflation bulletin on 19 August: first compare the two CPI annual rates, then use the monthly change and expenditure-category contributions to understand what the result means for household budgets.

Source: Office for National Statistics