How the Triple Lock decides what happens every April

The 4.8% that reached pensioners in April 2026 was not decided in April. It was fixed months earlier, by a comparison between three measures in which the largest wins. The Triple Lock is a simple rule with a long timetable, and most of the argument about it comes from what it does not cover.

The Triple Lock is a commitment about how the full basic and full new State Pension rates are increased each year. It has applied since April 2011 and has survived several changes of government.

The rule itself takes one sentence: the rates rise by the highest of three measures.

The three measures

For the 2026/27 uprating, average earnings growth of 4.8% was the highest of the three. That is why the full new State Pension rose from £230.25 to £241.30 a week and the full basic rate rose from £176.45 to £184.90, both from 6 April 2026.

The timetable runs from the previous autumn

The decision is made long before the money changes, which is why the figure is usually known months ahead of the date it applies.

• September. The ONS publishes the earnings data for May to July.
• October. The ONS publishes September's CPI figure.
• Autumn. The Secretary of State for Work and Pensions carries out the statutory annual review and the uprating is announced, usually alongside a fiscal event.
• Winter. An uprating order is laid before Parliament, with the full schedule of rates.
• April. The new rates take effect from the start of the tax year.

The annual review is a legal duty under section 150A of the Social Security Administration Act 1992. That duty requires the basic and new State Pension to be increased at least in line with earnings. The inflation comparison and the 2.5% floor are government policy rather than statute, which is why the Triple Lock can be and has been modified without new primary legislation.

it has been suspended before

For 2022/23 the earnings element was set aside. Pandemic effects had distorted the earnings series, producing an artificially high figure, and the government legislated for a one-year "double lock" of inflation or 2.5%. The increase that year was 3.1%. The earnings element returned the following year.

What the Triple Lock does not cover

This is where expectations most often part company with the rules. The Triple Lock applies to the full basic State Pension and the full new State Pension. It does not apply to everything that appears on a pension statement.

Components typically uprated by CPI inflation instead include:

• Additional State Pension — SERPS and the State Second Pension.
• Protected payments — the part of a new State Pension above the full rate, where a 2016 starting amount exceeded it.
• Graduated Retirement Benefit, from the pre-1975 scheme.

For 2026/27, those elements were uprated at 3.8% rather than 4.8%. A pensioner with a mixed entitlement therefore sees a blended increase that is lower than the headline figure, which is why multiplying a whole weekly amount by 4.8% produces the wrong answer. The components that make up such an entitlement are set out in why two people the same age get different State Pensions.

A worked example of a blended increase

The overall rise here is about 4.6%, not 4.8%. Neither figure is wrong; the blend depends on the mix.

Why it is argued about

The case for the Triple Lock is that it protects pensioners against both inflation and falling behind working-age incomes, and that it has lifted the State Pension's value relative to earnings from a historically low base.

The case against is cost. Because the rule takes the highest of three measures each year, the State Pension ratchets upwards relative to both prices and earnings over time, and the Office for Budget Responsibility has repeatedly noted the growing long-term cost to the public finances. Critics also point out that the earnings measure can be distorted by one-off effects, as it was in 2021.

Successive governments have committed to it for the life of a Parliament rather than permanently, so it is reviewed as policy rather than guaranteed in law.

What this means in practice

Three things follow for anyone planning around it:

• The figure is knowable in advance. By October the data that decides the following April is published.
• It applies to the full rates only. Someone below the full rate sees the percentage applied to their own entitlement, not the full-rate cash increase.
• It is not a permanent guarantee. The earnings link is statutory; the rest is policy.

The point worth taking away

The Triple Lock is a comparison, not a formula with a fixed output. Each autumn, earnings growth, CPI and 2.5% are compared and the largest is applied to the full basic and new State Pension the following April. For 2026/27 that was earnings growth at 4.8% — but only on those full rates, with additional and protected elements rising more slowly.

General information. This article is sponsored content published by Riescola Pres, a service of Exigon Consulting OÜ. It explains published public rules and figures and is not personal financial, tax or legal advice. Riescola Pres is independent of, and not endorsed by, GOV.UK, the Department for Work and Pensions or HM Revenue & Customs, and no application can be made through this website. Any amounts shown are the official published rates for the stated period or clearly labelled worked examples; what an individual receives depends on their own record and circumstances. Figures correct as at 15 October 2026.

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