Royal Mail faces scrutiny as 219 million letters arrive late despite rising stamp prices

Royal Mail is facing renewed scrutiny over the reliability of Britain’s postal service after figures revealed as many as 219 million letters could arrive by the end of this year, raising concerns about service levels as stamp prices continue to rise.

Analysis of delivery data shows that approximately 126 million First Class books are on track to miss their next-day delivery target this year. At the same time, another 93 million Second Class books are expected to arrive after the three-day delivery window required under current regulatory standards.

The figures have stepped up pressure on the historic postal company, Royal Mail, which has been accused by MPs and consumer groups of allowing service quality to deteriorate while focusing on its lucrative parcels business.

Royal Mail has insisted that 92.1 per cent of all mail is delivered on time, but critics argue this headline hides the inefficiency of the First Class premium service.

According to the latest data, only 74.9 per cent of First Class books have been delivered within the next-day target so far this year – well below the 93 per cent regulatory requirement set by UK communications regulator Ofcom.

If this operation continues for the rest of the year, the shortfall will translate into about 126 million First Class books being delivered late, equivalent to about a quarter of all items sent using the service.

The performance gap has attracted particular attention because the price of a First Class stamp is due to rise again next month to £1.80, almost three times the cost of a decade ago.

Critics argue that rising postage costs sit comfortably alongside declining service reliability.

Although the standard Second Class service performs better than the premium First Class offering, it still lacks control measures by large margins.

Royal Mail data shows that 90.2 per cent of Second Class letters are currently delivered within three working days, compared to the regulatory requirement of 98.5 per cent.

That gap could cause as many as 93 million Second Class books to be delivered late during the year.

Combined, the combined delays in both services could affect more than 219 million letters, fueling complaints from households, businesses and public services that rely on reliable postal delivery.

Concerns about performance have already prompted MPs to take action. Last month the Business and Trade Committee launched an urgent inquiry into the operation of Royal Mail following widespread reports of late or missing letters.

Members of Parliament said they have received many complaints from members of the public who have received important letters that arrive days late, including doctor’s appointment notices, official government communications and important cards.

In some cases, residents have reported receiving bundles of books delivered together a few days after the expected arrival date, raising concerns that the books may be withheld before delivery.

Royal Mail bosses have denied that the mail is being deliberately delayed to prioritize the delivery of parcels. In an interview with Members of Parliament, the company said it plans to sort letters according to the date they are scheduled to be delivered but stressed that it will not deliberately hold mail in a way that causes it to exceed its legal delivery terms.

However, Royal Mail has also admitted it does not record specific data showing when letters can be taken in favor of parcels, which critics say makes it difficult to fully understand how operational decisions affect service quality.

Royal Mail’s internal analysis of delivery center performance suggests that achieving regulatory delivery targets requires very high levels of performance.

Statistical modeling done by the company shows that 99.5 percent of delivery addresses must be delivered on time for the postal operator to meet the First Class quality standard of 90 percent next-day delivery.

With around 1,200 delivery offices across the UK, even small gaps in local provision can quickly add up to a major national shortage.

Members of Parliament have expressed concern that staff shortages, changes in delivery routes and the increase in the volume of parcel deliveries may contribute to a decrease in the reliability of letter delivery.

Royal Mail’s difficulties have already led to regulatory action. In October 2025, Ofcom imposed a £21 million fine on the postal operator after failing to meet First and Second mail delivery targets.

At the time, the regulator said that the improvement of the company’s performance was “urgent” and required a clear rescue plan.

However, after five months, Royal Mail says it is still unable to publish full details of its development strategy because negotiations are still ongoing with the Communication Workers Union.

The delay has upset some MPs who say greater clarity is needed about how the company plans to restore credibility to Britain’s postal system.

Representatives from Royal Mail, Ofcom and the Communication Workers Union are scheduled to appear before Parliament’s Business and Trade Committee on March 24 to answer questions about the company’s operations and improvement plans.

MPs are expected to question whether the Universal Service Obligation (USO) – a legal requirement for Royal Mail to deliver letters across the country at the same price – is being undermined by operational pressures and changing company priorities.

The issue has become politically sensitive since the parent company of Royal Mail was taken over last year by the EP Group.

During the takeover process, EP Group gave legally binding assurances to the UK government that it would continue to support the global postal service.

Daniel Křetínský, the club’s chief executive, told the BBC last year that he intended to honor the service “as long as I am alive”.

The review also comes after Ofcom introduced significant changes to postal delivery rules in July 2025.

Under the revised rules, Second Class letters are now delivered every day of the week instead of daily, while the Royal Mail must also report performance against new “backstop” targets which measure letters that arrive up to two days late.

The regulator said the changes were designed to modernize the postal service while recognizing the sharp decline in traditional letter volumes and the rapid growth of parcel delivery driven by online shopping.

However, critics argue that even with the relaxed standards, Royal Mail is still struggling to meet its delivery obligations.

As stamp prices continue to rise and millions of households still rely on postal services for essential services, MPs say the integrity of Britain’s books remains a critical issue that needs to be addressed urgently.