“Return under any of the following provisions of theIncome Tax (PAYE) Regulations 2003 ( SI 2003/2682 )— (a) regulation 67B (real time returns) …”
“(1) Where P is liable for a penalty under any paragraph of this Schedule HMRC must— (a) assess the penalty, (b) notify P, and (c) state in the notice the period in respect of which the penalty is assessed. … (3) An assessment of a penalty under any paragraph of this Schedule— (a) is to be treated for procedural purposes in the same way as an assessment to tax (except in respect of a matter expressly provided for by this Schedule)”