The admission comes as millions make frenzied preparations for this month’s self-assessment deadline. It is feared the error could lead to many taxpayers paying too much and to accountants being inundated with queries.
Revenue figures found 5% of the nine million returns from last year were incorrect. But the Revenue pointed out many of the misleading statements have arisen as a result of incorrect information submitted by the taxpayer.
A spokesman for the Revenue, said: ‘It is imperative to remember a number of miscalculated tax returns come as a result of incorrect information sent to us.’
KPMG tax partner John Battersby, said: ‘The Revenue has nine million customers, so it is not surprising we have seen one or two cases where unexpected amounts have cropped up on statements ? however for a client to have an inflated tax demand is not a happy new year’s present’.
Meanwhile, the Revenue estimates 800,000 taxpayers will miss the 31 January deadline, boosting Treasury coffers by £80m. Some 125,000 returns are expected to be filed electronically.
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