Silverbrooks
That was years ago. It doesn’t work like that now. Tax codes are not automatically sent out. Much is paperless via Gateway. Where paperless, changes in tax code are notified by email.
It is highly unlikely that HMRC would allow arrears of £800 to be paid off at £5 per month. The normal length of a payment plan is twelve months or possibly 2 to 3 years. £5 pm wouldn’t even come close.
If the arrears cannot be collected through an adjustment to the tax code which, if the State Pension is already in excess of £12,570, would require an even bigger negative K code, HMRC will demand a direct payment.
If time to pay is requested:
HMRC will ask for
• Monthly income from all sources.
• Assets including savings accounts and physical assets that could be sold to raise money to pay the outstanding tax.
• Monthly regular outgoings on living expenses.
HMRC will expect someone to use funds from savings or investments to reduce the tax that is owed.
Any payment plan will also include interest that accrues on late payment.
From 6 April 2025, late payment interest is set at base rate (which is currently 4.5%) plus 4% so that will be 8.5%. It is currently base rate plus plus 2.5% so 7%. Those rates are set high to encourage people to pay promptly.
That was years ago. It doesn’t work like that now. Tax codes are not automatically sent out. Much is paperless via Gateway. Where paperless, changes in tax code are notified by email.
I still receive one.


