“(1) Before 20th May following the end of a tax year, an employer must deliver to the Inland Revenue [for which now read HMRC] a return containing the following information. (2) The information is— (a) the tax year to which the return relates, (b) the total amount of the relevant payments made by the employer during the tax year to all employees in respect of whom the employer was required at any time during that year to prepare or maintain deductions working sheets, and (c) the total net tax deducted in relation to those payments. (3) The return must be supported by the following information in respect of each of the employees mentioned in paragraph (2)(b). (4) The supporting information is— (a) the employee’s name, (b) the employee’s address, if known, (c) either— (i) the employee’s national insurance number, or (ii) if that number is not known, the employee’s date of birth, if known, and sex, (d) the employee’s code, (e) the tax year to which the return relates, (f) the total amount of the relevant payments made by the employer to the employee during that tax year, and (g) the total net tax deducted in relation to those payments.”
“(1) A penalty is payable by a person (P) where— (a) P gives HMRC a document of a kind listed in the Table below, and (b) Conditions 1 and 2 are satisfied. (2) Condition 1 is that the document contains an inaccuracy which amounts to, or leads to— (a) an understatement of a liability to tax, (b) a false or inflated statement of a loss, or (c) a false or inflated claim to repayment of tax. (3) Condition 2 is that the inaccuracy was careless (within the meaning of paragraph 3) or deliberate on P’s part. (4) Where a document contains more than one inaccuracy, a penalty is payable for each inaccuracy.”
“Paragraph 1(1) of Schedule 24 directs the reader to the list of those documents for which the penalty regime applies and this includes a Return for the purposes of the Pay As You Earn Regulations—so where it is found that the calculation of the Pay As You Earn income tax was incorrect then the P35 details are inaccurate and so the P35 is incorrect as this return is to contain details of the amounts that employers are required to account for.…”