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HMRC internal manual

Tax Compliance Risk Management

Managing our relationship with large business customers: Working with Low Risk customers: Customer-initiated activity: Introduction: Clear errors

If a Low Risk customer draws our attention to a clear error we should work with them to agree the approach to addressing this error as economically as possible and collect any additional liability due for the current year. If the customer has quantified the extent of the additional liability we would normally accept this. If it is clear that the error has occurred in earlier years then the additional liability should be collected in accordance with the existing HMRC instructions, legislation and case law relevant to that tax or duty.

If properly due and payable the tax/duty should be brought to account for the period for which it is due and not ignored because of its size or informally moved to a later accounting or return period.