How do frozen tax thresholds change your retirement plan?
The personal allowance and the higher-rate threshold have been held at £12,570 and £50,270 since 2021 and are frozen until April 2028. Nothing about that is announced annually, and its effect compounds: every year your income rises with inflation, a larger share of it falls into tax without a single rate changing.
- The freeze: personal allowance £12,570 and higher-rate threshold £50,270, held to April 2028.
- The mechanism: incomes rise, thresholds do not, so more income is taxed at higher rates.
- The retiree version: the triple lock raises the State Pension against a static allowance.
- The response: plan in the frozen numbers, not in inflated ones.
01 What a freeze actually does
Freezing a threshold raises tax without raising a rate. If your income rises 4% and the personal allowance does not move, the untaxed share of your income falls, and the difference is collected as tax. Over the seven years to April 2028 that compounds into a substantial change in effective rate for people whose headline rate never moved.
The mechanism has a name — fiscal drag — and it is the largest single tax change of the period, delivered without an annual announcement. Its distributional effect is unusual: it pulls people over thresholds rather than charging existing taxpayers more, so its most visible consequence is the number of people paying higher-rate tax for the first time.
It is also the reason the £100,000 personal allowance taper catches more people every year. That threshold has been unchanged since 2010, so the 60% band has been drifting down the income distribution for fifteen years.
02 The retiree version of the problem
For someone drawing a State Pension, the freeze meets the triple lock head-on. The State Pension rises each April by the highest of earnings growth, CPI or 2.5%, while the personal allowance does not move at all. The full new State Pension of £12,548 a year sits just under the £12,570 allowance in 2026-27, and on any plausible uprating path it crosses it during the freeze.
The consequence is that a cohort of pensioners with no other income at all will start paying Income Tax on their State Pension. There is no mechanism to collect it at source from the State Pension itself, so it arrives as a Simple Assessment letter, which is a poor way to discover a change.
For anyone with a private pension on top, the effect is arithmetically identical but earlier: the rising State Pension consumes more of the allowance each year, leaving less of it available to shelter drawdown income.
Shows: how much more of your income falls into tax by 2028 if it rises with inflation while the thresholds stay frozen. Ignores: Scottish rates, National Insurance, changes announced after this page was written, and any change in your actual income.
On the defaults above, the worked example shows £696. Income of £32,000 becomes £35,479, and tax rises from £3,886 to £4,582 with no rate change at all.
Source: The new State Pension
03 Planning in frozen numbers
The practical response is to build the plan on the cash thresholds as they are, rather than on a projection that quietly uprates them. Most retirement planning tools inflate tax bands along with everything else, which produces a tax bill that is too low in every year to 2028 and a spendable income that is too high.
It also strengthens the case for using each year's allowances rather than deferring. An ISA allowance, a Capital Gains Tax exemption and a personal allowance are all worth more in a frozen-threshold world, because deferring income into a later year no longer buys the relief that inflation used to provide.
And it makes the couple-level view more valuable. Two personal allowances are £25,140 of tax-free income; wasting one of them is more expensive every year that the threshold stands still.
Source: Plan your retirement income
The freeze is the tax rise nobody has to defend, because it arrives without a Budget line and without a rate change. What I would take from it is narrower than the politics: stop letting your planning tool uprate the bands. If your spreadsheet assumes the personal allowance rises with inflation to 2028, it is showing you a tax bill that will not happen and a retirement income you will not have. Put £12,570 and £50,270 in as fixed numbers, see what that does, and plan against the answer.
FAQ
Will the freeze definitely end in April 2028?
That is the legislated position, but freezes have been extended twice already and a future Budget can extend it again. Planning on the announced end date is reasonable; treating it as certain is not, and the cautious assumption is that thresholds stay put for longer than promised.
Will I pay tax on my State Pension alone?
Not yet, but the gap is narrow. The full new State Pension is below the frozen personal allowance in 2026-27 and rises annually under the triple lock, so a cohort with no other income will start paying Income Tax on it during the freeze.
Does the freeze apply in Scotland?
The personal allowance is UK-wide and frozen for everyone. Scotland sets its own rates and thresholds above the allowance, so Scottish taxpayers face the frozen allowance plus a separate set of Scottish decisions on the bands above it.
Sources
Regulator references
- Income Tax rates and Personal Allowances · GOV.UK · 2025The band boundaries every figure in this post is calculated against.Last verified: 2026-09-07
- The new State Pension · GOV.UK · 2025Sets the qualifying-year rules and the full new State Pension rate this post works from.Last verified: 2026-09-07
- Plan your retirement income · GOV.UK · 2025The government's own sequence for turning pension pots into income.Last verified: 2026-09-07
Calculator unit tests · the assertions this page's worked example is checked against, and their last result
Changelog
- 2026-09-07 — initial publish (new format)
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Jordan Reeves
Founder of Talk Through Wealth. A software engineer for over a decade before turning to retirement planning, Jordan built the projection engine after watching family members get fragmented, country-by-country advice that never reconciled. He writes about retirement the way the engine computes it: month-by-month, lifetime-long, and skeptical of any rule of thumb that hasn't been run through the math.