Posts tagged ‘Underpayment’

PAYE notices of coding are notorious for being erroneous, but HMRC have surpassed themselves with this computer generated nightmare that not only leads to extra work and a lot of confusion but may even leave you paying too much tax.

Multiple Notices

In the last few months you may have received several Notices of Coding all showing different codes for the tax year 2010/11. There have been a number of instances where taxpayers have been receiving one tax code one day followed by a different one the next or even more than one code in one day. This has left many people bewildered and uncertain about exactly what tax code will be operated against their income and many of the codes issued are wrong anyway.

New HMRC  system

The problems have occurred as a result of HM Revenue & Customs recently introducing a new system for issuing coding notices called the National Insurance and PAYE Service (NPS). The new service has brought to light various discrepancies in their records and so they have been trying to rectify the errors, hence so many codes being issued all at once. They expect to complete their review by mid April 2010 which will hopefully bring an end to all the confusion.


Any problems occurring as a result of an incorrect code will ultimately be resolved at the end of the tax year once a taxpayer submits their 2010/11 Tax Return to HMRC. However if serious problems are not dealt with near the beginning of the tax year it could result in a large underpayment arising for some people which it may not be possible to collect via a later year’s tax code.  If you are not required to file a Tax Return, over or underpayments may go undetected for quite some time.

A careful review is necessary

In view of the problems which have occurred it is important that any codes received for 2010/11 are reviewed fully. If you believe that your code is incorrect you should either contact your advisor if you have one or HMRC as soon as possible.

Need help?

As agents we receive a copy of the majority of PAYE Coding Notices issued to our clients and therefore we are able solve many of the matters arising before problems begin to appear. We have discovered various reasons for an incorrect code but the problems particularly appear to have affected those with multiple employments. Close scrutiny of your code is therefore important.

Disclaimer: This article is for general guidance only.  All taxation planning should only be undertaken after appropriate professional advice.  George Hay Chartered Accountants are registered to carry on audit work and regulated for a range of investment business activities by the Institute of Chartered Accountants in England and Wales.

The information provided in this blog illustrates my opinions and experiences, it does not constitute advice and I do not accept responsibility for any actions taken or refrained from as a result of reading this post.