Fiscal Drag: The £6 Billion Silent Tax Rise
The personal allowance has been frozen at £12,570 since April 2021. If it had risen with CPI inflation over those five years, it would be roughly £15,400 today. That £2,830 gap means every taxpayer is paying income tax on nearly £3,000 of income that would have been tax-free under the pre-freeze formula.
For a basic-rate taxpayer, that's £566 a year in additional tax. For a higher-rate payer, it's £1,132. Multiply across 34 million taxpayers and the OBR estimates frozen thresholds will raise over £6 billion in 2026/27 — more than many headline Budget measures.
The higher-rate threshold is equally frozen. At £50,270, it hasn't moved since 2021/22. Wage growth of 5-6% over the past two years has dragged an estimated 1.5 million additional workers into the 40% band who wouldn't have been there under an indexed system.
This isn't abstract economics. A nurse earning £35,000 in 2021 paid £4,486 in income tax. The same nurse, with the same real purchasing power, now pays over £5,000 because the threshold hasn't moved while her nominal salary has crept up with inflation-matching pay settlements. The ISA allowance offers some shelter, but only if you have spare cash after the bills — and for most households, that margin is shrinking.
Scotland's position is even more aggressive. Scottish higher-rate taxpayers pay 42% from £31,093, with an advanced rate of 45% from £62,431 and a top rate of 48% above £125,141. A Scottish professional earning £75,000 pays roughly £2,400 more in income tax than their English counterpart — and the gap has widened each year since devolution of tax powers.