Inland Revenue can only make a 'Correction' to a return, an amended return, or a claim within 9 months of the time when the return was delivered, the amended return made, or the claim made.
Inland Revenue can open an 'Enquiry' into a company tax return.
•for a return delivered on or before the filing date, at any time up to 1 year from the filing date
•for a return delivered late next following the first anniversary of the day on which the return was delivered.
Where notice to make a return was issued but no return is delivered normal investigation time limit is 4 years for corporation tax.
Contains submitted accounts careless mistakes the investigation time limit is 6 years.
Where loss of tax due to deliberate behaviour of the company or agent is discovered 20 years from the end of the accounting period is set.