The firm claims that commercial properties in the UK could be owed capital allowances worth thousands of pounds each, with research from Deloitte claiming around 90% of properties will be owed a tax rebate.

CA states that smaller businesses that own commercial premises are more likely to be owed money, with the average rebate being around £25,000 for these properties.

Purchases eligible for a tax rebate can also include air conditioning or heating systems, lighting and security systems as well as plant and machinery items.

Mark Tighe, CA’s managing director, said that accountants were often unable to understand how to uncover capital allowances.

“Capital allowances are one of the more obscure areas of tax and for this reason they often pass under the radar of a lot of firms. And for obvious reasons, the Revenue isn’t shouting about it from the rooftops either.

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“A big problem is that many accountants are embarrassed to approach their clients about the issue, as really this is something they should have alerted them to years back.

“The truth, though, is that accountants can’t be expected to have the skill-set required to identify capital allowances. The bottom line is that it’s a very tough climate for the majority of UK firms right now and a cheque from the Inland Revenue would be a real fillip.”

CA Tax Solutions estimates that there is up to £70bn of unclaimed taxes in the UK’s commercial property stock, with rebates available to any business which has incurred capital expenditure by buying, building or making adjustments to commercial property.