The trend of shop prices falling may be reversing as businesses face higher costs, according to industry data.

The pace of price drops slowed this month, according to figures from the British Retail Consortium (BRC).

November was the first time in 17 months that the inflation rate was higher than a month earlier.

While shop prices dropped 0.8% in October compared to a year earlier, the fall slowed 0.6% in November, according to BRC figures.

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The figures may signal the end of falling inflation given cost pressures being placed on big businesses, according to BRC chief executive Helen Dickinson.

Retailers face a barrage of costs which the BRC forecasts will amount to an extra £7bn for retail businesses next year.

Budget measures such as the increase in employers’ national insurance contributions and a higher minimum wage form part of those costs as does the forthcoming packaging tax to fund recycling efforts.

These extra costs will just push up consumer prices, Ms Dickinson said.

“Retail already operates on slim margins, so these new costs will inevitably lead to higher prices.”

The official measure of inflation is already on the up with the first rise in three months recorded in October as energy bills rose. The rate of price rises rose sharply to 2.3% from 1.7% recorded a month earlier as the energy price cap was hiked.

If the government wants to prevent higher shop prices it must reconsider the April 2025 timeline for the new packaging levy and reduce the commercial property tax known as business rates “as early as possible”, Ms Dickinson added.

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The minimum wage uplift will bring pay for people over 21 to £12.21 an hour and take effect in April. People aged 18 to 20 will have to earn at least £10 an hour – something the TUC (Trades Union Congress) said could benefit 420,000 young people – as part of the government’s goal of paying the same minimum wage to all workers, regardless of age.

Also from April, employers will have to pay more national insurance for their staff.

Businesses’ national insurance contributions will increase from 13.8% to 15% with the current £9,100 threshold at which employers start to pay the tax on employees’ earnings lowering to £5,000.

Chancellor Rachel Reeves has defended the increase saying half of all businesses – roughly a million firms – are paying either less or the same national insurance contributions as they were before the budget due to the uprated employment allowance, a tax credit for some employers.