Key Takeaways
- The triple lock has had a dramatic upward effect on state pension payments in the last 15 years.
- Influential public figures and think tanks say it should be scrapped, but current politicians remain committed to the policy for now.
- Proposed reforms include linking rises to inflation or earnings while removing the 2.5% minimum, or just linking pension rises to earnings.
The triple lock is a spending commitment made by the UK government more than 15 years ago that has played a significant role in bolstering retirement income for around 12 million people.
It ensures that state pension payments rise every April by the highest of three figures: Consumer Prices Index inflation, wage growth, or a minimum of 2.5%. As the table below shows, in the last 15 years, earnings and inflation—not the 2.5% baseline—have triggered the majority of state pension payment increases under these rules.
In specific terms, the triple lock has increased the value of the state pension from just over £100 per week for a single person in 2011 to £241 per week in April 2026. In 2023, when high inflation drove a 10% increase, the annual state pension moved above £10,000 for the first time, and is now around £12,500, just below the threshold when an individual starts paying tax.
There are differences in how much state pension people get depending on when they were born and how many National Insurance contributions they have made. Currently those who are 66 years old are eligible to receive the state pension, but this is expected to rise to 68 for those born after 1977.
What Does the Triple Lock Mean for Your Retirement?
The impact of the triple lock can be significant over long periods. A retiree receiving the full new state pension of around £12,500 a year today would receive about £16,000 after 10 years if the 2.5% minimum increase applied every year. If increases averaged 4%, the annual payment would rise to around £18,500. At 6%, it would exceed £22,000.
For many retirees, the state pension forms the foundation of their retirement income. The triple lock can therefore reduce the amount that needs to be generated from private pensions, savings, and investments.
Why Is the Triple Lock Controversial?
Former Labour Prime Minister Tony Blair claims it’s unaffordable. Previous Conservative chancellor Jeremy Hunt says it’s “immoral.” But figures across the political spectrum from Andy Burnham to Nigel Farage want to keep it. Few stand-alone policies have generated as much division as the triple lock.
The triple lock is an increasingly expensive policy commitment. The Office for Budget Responsibility, the government’s tax and spending watchdog, said the triple lock has cost three times more than originally expected, and burdens the UK with over £15 billion in annual payments within a few years. The OBR says the policy could now put the government’s finances on an “unsustainable path.”
In the 2025/26 tax year, the government spent £146.1 billion overall on the state pension. This is less than what is spent on the NHS, but more than the spending on defense and education.
Several prominent think tanks have pointed out how unaffordable this cost is, and that it’s unfair for today’s workers’ taxes to be funding relatively generous increases to the state pension that often come in higher than their own wage uplifts. Others simply think lower-income pensioners should get priority. Even a former chancellor, Jeremy Hunt, has turned on the policy, even though he presided over the two largest triple lock upratings: in April 2023 (10.1%) and April 2024 (8.5%).
Will the Triple Lock Stay?
The triple lock still retains broad support from plenty of politicians nevertheless. The Labour Party recommitted to the policy at the 2024 election and will keep it until the end of the current parliament. Andy Burnham, who looks set to become the next UK prime minister, has said he would keep it if he took office. Having pledged a “triple lock-plus” policy in 2024—uprating both the state pension and the personal allowance for pensioners by at least 2.5% each year—the Conservatives are somewhat quieter. Even Reform, which has made much of its desire to shrink the state, has said it would keep the policy.
Possible changes could see the triple lock move to a “double lock,” linking rises to inflation or earnings but removing the 2.5% minimum. An “earnings lock,” effectively a “single lock,” is also under discussion, as well as means-testing state pensions.
Whether they think it’s politically expedient or not, most agree the policy cannot last, however. “Ministers cannot dodge this difficult topic forever. Instead, the government needs to have a proper conversation about its long-term future,” says Rachel Vahey, AJ Bell’s head of public policy.
