The State Pension Triple Lock, Explained: The Formula, the History and the 2027 Rise
- 🔑 The state pension “triple lock” is the UK government’s commitment to raise the basic and new State Pension every April by whichever is highest of three measures: CPI inflation to September, average earnings growth for May to July, or a 2.5% floor, so the pension never lags behind all three at once.
- Introduced from the 2011-12 uprating by the coalition government, the triple lock has been suspended only once, in the April 2022 uprating, when pandemic-distorted earnings growth of around 8.3% was excluded by law and replaced with a CPI-or-2.5% “double lock” for that single year.
- Provisional data point to a 3.9% earnings-led rise for April 2027, which would take the full new State Pension from £241.30 to roughly £250.71 a week, but this is not final: the decisive CPI figure for the 12 months to September 2026 is due from the ONS on 21 October 2026.
- Because the income tax personal allowance has been frozen at £12,570 and that freeze was extended through 2030-31 at the November 2025 Budget, a full new State Pension paid at the provisional 2027 rate would for the first time sit above the tax-free threshold on its own.
- Prime Minister Andy Burnham used his Labour Party conference speech in Liverpool on 29 September 2026 to signal that the triple lock should be reviewed for the party’s next manifesto, even as Cabinet colleagues insisted the existing commitment holds for the rest of this Parliament.
- The final, confirmed 2027-28 rate still depends on the September CPI figure, due from the ONS on 21 October 2026, and on Chancellor John Healey’s first Budget on 28 October 2026; no betting odds, spreads, or win-probability models appear anywhere on this page.
The state pension triple lock is the UK government’s promise to raise the basic and new State Pension every April by whichever is highest of inflation, average earnings growth, or 2.5%. It has driven every uprating since 2011-12 bar one, and it is back in the headlines because the earnings figure likely to set the April 2027 rise is already out — while the government’s own commitment to the mechanism has just become a live political argument.
What exactly is the state pension triple lock?
The triple lock is a rule, not a rate: each April, the government must raise the basic State Pension and the full new State Pension by the highest of three figures. Those are the Consumer Prices Index (CPI) inflation reading for the 12 months to September, average earnings growth over the three months to July compared with the same period a year earlier, or a 2.5% floor if both of those come in lower. The Coalition government introduced it, and it first applied to the April 2011 uprating. In practice it means pensioners are guaranteed to keep pace with whichever of prices, wages or a modest fixed increase is doing best in any given year.
How is the size of the rise actually calculated?
Each year’s percentage rise is simply the largest of three separately published numbers, with no averaging or blending between them. The Office for National Statistics (ONS) supplies both the inflation and earnings figures on its own publication schedule, and the government then applies whichever is largest to the previous year’s pension rate the following April.
| Factor | Basis |
|---|---|
| Inflation | CPI to Sept |
| Earnings | May–Jul growth |
| Floor | 2.5% fixed |
Has the triple lock ever been suspended?
Yes, once: the April 2022 uprating used a temporary “double lock” instead, dropping the earnings measure for that year only. Average earnings growth had spiked to around 8.3% as furloughed workers returned to full pay, a statistical distortion from the pandemic rather than a genuine wage rise. Parliament passed the Social Security (Up-rating of Benefits) Act 2021 to exclude earnings from the calculation for that single year, using CPI or 2.5% instead. Every other uprating since 2011-12 has used the full three-way comparison.
How much could the state pension rise in April 2027?
A rise of around 3.9%, tracking earnings growth, looks the likely outcome, but the figure is not yet confirmed. The ONS published provisional average total-pay earnings growth of 3.9% for the three months to July 2026 on 15 September 2026, ahead of CPI inflation to July 2026, which was running lower. If earnings growth ends up as the winning figure, the full new State Pension would rise from £241.30 a week in 2026-27 to roughly £250.71 a week — about £13,036.92 a year — from April 2027. That is not settled: the decisive number is CPI inflation for the 12 months to September 2026, due from the ONS on 21 October 2026, and the government is not expected to confirm the actual 2027-28 rate until around or after Chancellor John Healey’s Budget on 28 October 2026. Treat £250.71 as a provisional estimate, not a locked-in figure.
Because the income tax personal allowance has been frozen at £12,570 since 2021, and that freeze was extended through the 2030-31 tax year at the November 2025 Budget, a full new State Pension at the provisional 2027 rate would sit above the tax-free threshold for the first time — by itself, before any other income. In practice this wouldn’t mean deductions from the pension payment itself, since the Department for Work and Pensions (DWP) doesn’t operate PAYE on state pension payments; HM Revenue & Customs would instead collect any tax owed by adjusting the tax code on other income, or through Self Assessment.
Is the government about to scrap the triple lock?
Not for the rest of this Parliament, according to ministers, though Prime Minister Andy Burnham has now opened the door to reviewing it beyond that. Speaking at Labour’s annual conference in Liverpool on Tuesday 29 September 2026, Burnham signalled that the policy doesn’t work as currently designed and suggested it should be reviewed for the party’s next manifesto, reportedly as part of a wider push to fund a new, free-at-the-point-of-use social care system. The reaction from within his own party was mixed: Defence Secretary Wes Streeting said the existing commitment holds until at least the next election, in line with Labour’s 2024 manifesto, while former Cabinet minister Darren Jones suggested the pension’s rising cost might have to be weighed against social care funding for older people. Unite general secretary Sharon Graham warned that scrapping the triple lock would be politically dangerous. As of Tuesday 29 September 2026, no formal change to triple lock policy has been announced; this is a live, fast-moving story worth checking again close to the 28 October Budget.
This is separate from Reform UK, the political party, which has itself pledged to keep the triple lock in place — a pledge about the pension policy, not a plan to “reform” it in the sense of changing it.
When will the exact 2027-28 rate be confirmed?
In stages: the CPI figure lands in October, the government’s Budget follows later that month, and the formal rate table typically isn’t published until the following February. The ONS releases September’s CPI inflation figure on 21 October 2026, which is what actually decides whether earnings growth or inflation wins the comparison. Chancellor Healey’s first Budget, on 28 October 2026, is the moment the government is expected to address both the fiscal cost of the triple lock and, potentially, its longer-term future. Based on the pattern from previous cycles, DWP’s own confirmed table of benefit and pension rates for the new tax year tends to follow in mid-February.
Until then, the safest way to describe April 2027’s State Pension rise is as provisionally expected to be around 3.9%, pending confirmation — not a fixed number.
The triple lock has shaped every state pension rise for a decade and a half, but between a not-yet-final earnings figure, a Budget five weeks out, and a Prime Minister publicly questioning the policy’s long-term shape, this is one of the more unsettled versions of the annual uprating story. We’ll follow up with the confirmed number once the Chancellor and the ONS have both had their say.