As you'll no doubt have noted from the extensive news coverage, HMRC have realised that 1.4 million taxpayers have been underpaying tax as a result of HMRC database problems. Today is the day that the first demands will start arriving on taxpayers' doormats.
It appears that the problems largely relate to taxpayers' PAYE codings not being adjusted to reflect 'benefits in kind' like company cars and medical insurance provided to them by their employers. Every employee is issued with a PAYE coding that tells their employer how much tax to deduct from their salary. If you have, say, a company car, you are issued with a code that results in your paying more tax than would have otherwise been the case.
Anyone who has been submitting tax returns shouldn't be affected by this, by the way - on your tax return, you'll have declared your income and benefits in kind to HMRC and paid over any tax owed as a result, either in a lump or by having your PAYE coding adjusted for a subsequent year. If HMRC had failed to issue you with an appropriate PAYE coding, you'd simply have paid more tax after submitting your tax return. It all comes out in the wash. It appears that it will be those who don't have to submit returns who are affected here.
There's also a great deal of coverage about the possibility of escaping paying underpaid tax by claiming under "Extra Statutory Concession A19". That's a piece of HMRC guidance that - I'm paraphrasing here - says that if a) you could reasonably have believed you were paying the right amount of tax and b) HMRC had all the information they needed to determine that you were paying the wrong amount of tax then, once 12 months have passed, it's too late for HMRC to ask you for any tax owed.
Whilst it will certainly be worth making an application under A19, I think success will be determined by item a). If someone's PAYE code isn't updated to reflect the tax due on your company car, is it reasonably to believe that you're paying enough tax? Undoubtedly, few taxpayers understand their PAYE code. If it's changed and they take home more money, they'll probably be happy, but if it's changed and they take home less money they'll grumble. Is it reasonable to take no interest in it, and just accept what the system gives you? I'm not sure. It's a grey area. Part of me thinks that, if you're going to just go with the flow then you ought to be consistent - if you unwittingly pay too little tax, fine, keep it, but if the mistake gets uncovered, tough, pay up. But at the same time, the whole point of the PAYE system is that it's supposed to get these things right so that taxpayers don't have to worry about it.
And there's a question of degree too. Is it reasonable to not realise you're failing to pay £8 tax a month on your company BUPA scheme? Probably. Is it reasonable not to realise you're failing to pay £200 tax a month on your company BMW? Maybe not.
In any case, it will be interesting to see if taxpayers successfully avoid paying. We can't see many, if any, of our clients being affected - they've largely been submitting tax returns all along - but if you receive one of these demands, do let us know.
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