HMRC alert as Brits told ‘you will pay more’ | Personal Finance | Finance

HMRC has explained the tax rules (Image: Getty)
Some customers may need to pay additional tax bills with HMRC clarifying when this may be the case. HMRC responded to an enquiry by explaining the figures to demonstrate how tax bills are calculated. A customer approached the authority regarding a message they had been sent. The customer said said: “Please explain why my tax code has altered you say I owe £847 but you want to reduce my allowance by £4,235 and you will take £70 a month. Why has the tax code not been reduced by £847? This just looks wrong.”
They included a screenshot of a message they had received from HMRC. The message said: “You did not pay enough Income Tax for a previous tax year.” The message indicated that they owed £847 and provided information about how this sum would be recovered.

Customers have queried the tax messages they have been sent (Image: Getty)
The message explained: “To collect this we have reduced your Personal Allowance by £4,235. This means that you will pay more than until 5 April 2027, so that we can collect the 3847 owed. Your tax code has been adjusted for this.”
Your personal allowance represents how much you can earn annually before paying income tax, reports Wales Online.
The standard personal allowance stands at £12,570 per year. The message also contained information about “what happens next”.
This portion explained: “At the end of the tax year we will assess your actual income for 6 April 2026 to 5 April 2027. We will contact you if you owe any tax or if we owe you a refund.”
In response to the query, HMRC explained: “We reduce your allowance by an amount that, when taxed, will collect the amount of extra tax to pay the underpayment.
“In your case, as a basic rate taxpayer, the restriction of £4,235 will collect £847 (£4,235 x 20% = £847).”

Some customers may need to pay additional tax bills (Image: Getty)
The basic rate of income tax stands at 20%, applied to annual earnings between £12,571 and £50,270.
The higher rate of 40% is charged on income between £50,271 and £125,140.
Earnings beyond this figure are taxed at 45%. However, there’s another important rule to be aware of: once your income exceeds £100,000, your personal allowance decreases by £1 for every £2 earned above this limit.
This means that by the time your income hits £124,140, your personal allowance disappears entirely.
To check tax, customers can sign in to their HM Revenue and Customs (HMRC) online account.
Details of personal or business tax accounts will be available as well as, Self Assessment, Corporation Tax, PAYE for employers, VAT and the Construction Industry Scheme.


