Jamie Oliver has revealed the scale of the impact the collapse of his restaurant group had on his overall business interests.

Pre-tax profits at his operations, made up of Jamie Oliver Holdings, Jamie Oliver Licensing and Jamie’s Italian International, almost halved by 46%, from £14.4m to £7.8m. The business said its profits had been “impacted by exceptional costs of £9.9m in the year related to the restaurant group.”

Overall sales for the year ending 31 December 2018 were also down, with turnover falling 5.9% from £46.2m to £43.5m.

However, it also said highlights for the overall business “demonstrated the importance of our diversified business model” highlighting “exceptional performance in 2017” driven partly by the sales of Oliver’s cookbooks, which demonstrated the “ongoing appeal of our content and products.”

It also said a focus on making the operation more efficient had delivered a “significant increase in operating profit” and that while sales in the licensing business had declined, it had signed new “long‐term” contracts with Shell and Tesco.

It also said its international restaurant franchise “performed well” during the year, adding “12 new sites in three new countries, bringing the total to 62 at the end of the year.”

CEO Paul Hunt said the “strength of the Jamie Oliver portfolio allowed the Group to weather the challenges of 2018 meaning we were able to deliver a resilient set of results and a 4.9% increase in pre‐exceptional EBITDA.”

Dividends paid by Jamie Oliver Holdings (£2m) and Jamie Oliver Licensing (£3.2m) were a combined £5.2m, down from £8.6m in the prior year. Jamie’s Italian paid no dividend.

Oliver shut down 22 UK restaurants in May after the business went into administration. Three franchise operations remain trading at Gatwick airport.