ICAEW chart of the week: Pensioners on the rise

My chart for ICAEW this week highlights how the number of pensioners in the UK is expected to increase by 14% over the next 10 years. This will have major implications for the public finances.

Step chart. Starts with a projected UK population aged 66 or more in 2025 of 12,614,000 (21%), adds 2,677,000 over the next 10 years, then a reduction of 867,000 (7%) from the change in the state retirement age to equal a UK population aged 67 or more of 4,424,000 (+14%) in 2035.

31 Jan 2025. Chart by Martin Wheatcroft FCA. Source: ONS, 'Principal population projection (2022-based), Jan 2025'.

The Office for National Statistics (ONS) published its latest population projections for the UK on 28 January 2025. 

Extrapolated from the 2021 Census in England, Wales and Northern Ireland and the 2022 Census in Scotland, the ONS’s principal projection is for the UK population to increase by 5% over the next decade from a projected 69,868,000 in June 2025 to 73,426,000 in June 2035. This is on the basis of 132,000 more deaths than births in total over the next 10 years (6,979,000 versus 6,847,000) and net inward migration of 369,000 a year on average.

Our chart highlights how the number of pensioners is expected to increase by 14% over the next 10 years, from a projected 12,614,000 this summer to 14,424,000 in 2035, despite an increase in the state retirement age from 66 to 67. 

The main driver of this increase is an additional 2,677,000 people aged 66 or more, reflecting 8,522,000 people passing the age of 66 over the 10 years to June 2035, plus 28,000 from net inward migration (119,000 in and 91,000 out), less 5,873,000 deaths

This 21% increase is partially offset by a 7% reduction for the 867,000 66-year-olds who will still be waiting for their state pension in June 2035 as a result of the planned rise in the state retirement age from 66 to 67 between 2026 and 2028.

Over the same period the ONS is projecting a 7% fall in the number of children from 12,272,000 in June 2025 to 11,434,000 in June 2035, and a 6% increase in the size of the working age population from 44,982,000 to 47,569,000. The latter would have been a 4% increase if not for the statutory increase in the state pension age to 67.

The ONS stresses that its national population projections are not forecasts and do not attempt to predict potential changes in international migration in particular. It also notes that demographic assumptions for future fertility and mortality are based on observed demographic trends, which is no guarantee that these trends might not change in the future.

Despite those caveats, the projected increase in the number of pensioners is one of the more likely areas of the projections to turn into reality. This is because almost all of those future pensioners are alive today and already living in the country, while mortality rates tend to change gradually over time. 

A much more significant factor relates to the ONS’s long-term assumption for net inward migration of 340,000. While this is unlikely to affect the anticipated number of pensioners in a decade’s time, it will have a significant impact on the projected ratio between the number of pensioners and those of working age.

Either way, the projected rise in the number of pensioners compared with the size of the working-age population over the coming decade will have major implications for the public finances. 

Tax receipts will fall proportionately as retirees leave the workforce faster than new workers join. State pension payments will increase, even before taking account of the ratchet effect of the pension triple-lock on the amount payable to each pensioner. Health care and adult social care costs will rise substantially given how skewed these costs are to older generations. And pension credit, housing benefit and other welfare benefits that go to poorer pensioners are also likely to increase. 

Successive governments, including the current administration, have worked on the basis that they should be able to afford the higher costs of many more people living for longer in retirement through a combination of gradual rises in the state pension age (long hoped for but not delivered), higher levels of economic growth, and cuts in other areas of public spending such as the defence budget. 

With the number of pensioners increasing much faster than the government can raise the state pension age (given the decade or more advance notice that needs to be given), relatively low levels of economic growth even in more optimistic scenarios, calls for an increase in the defence budget and significant cost pressures affecting many other public services, the big question will be the extent to which taxes will have to go up even further over the next 10 years if the promises made by successive governments over the last century are to be kept.

Read more: ONS’s national population projections.

This chart was originally published by ICAEW.

ICAEW chart of the week: Receipts and spending by age

My chart this week looks at how receipts and spending vary by age, a key driver for public finances that new Chancellor Kwasi Kwarteng will need to factor into his fiscal plans.

Column chart - showing receipts by age group per person per month above the line and spending below the line.

0-9: £150 (receipts) - £550 (public services and interest), £290, (pensions and welfare), £270 (health and social care), £380 (education)

10-19: £210 - £620, £320, £110, £750

20-29: £1,150 - £440, £120, £160, £110

30-39: £1,930 - £430, £150, £180, £30

40-49: £2,200 - £430, £170, £200, £20

50-59: £1,960 - £450, £190, £300, £10

60-69: £1,240 - £480, £340, £370, -

70-79: £800 - £640, £1,170, £600, -

80+: £600 - £730, £1,400 - £1,270

Average: £1,220 - £510, £365, £310, £155

Kwasi Kwarteng’s first Budget will be an emergency one, not only setting out his plans for the financial year commencing on 1 April 2023, but also re-opening the budget for the current financial year. It will be dominated by the emergency support package for individuals and businesses already announced, alongside starting to deliver on Prime Minister Liz Truss’s commitments to cut taxes and ‘shrink the state’.

The new Chancellor is likely to find that cutting public spending is not going to be easy given the increasing financial commitments made by successive governments since the Second World War on education, pensions, health and social care, the areas that now dominate public spending. He supported adding to those commitments only a couple of years ago when then Prime Minister Boris Johnson decided to expand eligibility for social care, and former Chancellor Rishi Sunak re-committed to the ‘triple-lock’ that guarantees increases in the state pension every year.

As our chart this week illustrates, receipts and spending vary significantly across age groups, with spending on education higher on the young, who pay very little in taxes, and spending on pensions, health and social care much higher for older generations who contribute less than the average, especially after reaching retirement age. This contrasts with the profile for those of working age who pay the most into the system while on average taking the least out.

Derived from an analysis from the Office for Budget Responsibility’s fiscal risks and sustainability report published in July, the chart shows how – before the emergency Budget scheduled for 21 September – budgeted tax and other receipts for the current financial year 2022/23 are equivalent to £1,220 per person per month, based on forecast receipts of £988bn and a population of 67.5m. This is below budgeted public spending of £1,340 per person per month (£1,087bn/67.5m people/12 months), with the deficit of £120 per person per month (£99bn in total) funded by borrowing.

Average receipts per person per month by age group are estimated to be in the order of £150, £210, £1,150, £1,930, £2,200, £1,960, £1,240, £800 respectively for those aged 0-9, 10-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79 and 80+ respectively. These numbers include £115 per person per month of non-tax receipts spread evenly across everyone. 

Spending on public services and interest in the order of £510 per person per month, or £550, £620, £440, £430, £430, £450, £480, £640, £730 by age group, is less variable across age groups because it much of this spending is incurred on behalf of everyone, including £125 in interest, £73 on defence and security and £53 on policing, justice and safety for example.

Spending on pensions and welfare of £365 per person per month is less evenly spread, with £290 and £320 per month spent on those in their first two decades and £440, £430, £430 and £450 on those in their twenties, thirties, forties and fifties respectively. This increases to average spending per person per month of £480, £640 and £730 on those in their sixties, seventies and eighties or over. 

Health and social care spending of £310 is biased towards older generations, with per person per month spending of £270, £110, £160, £180 and £200 for the first five decades of life contrasting with the £300, £370, £600 and £1,270 spent on average on those in their fifties, sixties, seventies and eighties or over. 

As you would expect, education spending of £155 per person per month on average is mostly spent on the young, with around £380 per person per month spent on the under-10s, £750 spent on those between 10 and 19, £110 spent on those in their twenties, and £30, £20 and £10 respectively spent on those in their thirties, forties and fifties.

The reason this chart is so critical is because demographics are not in a steady state, with the ONS projecting that there will be an additional 3.3m pensioners in 20 years’ time, a 27% increase. This will have significant cost implications for this and future governments over a period when the working-age population – who pay most of the taxes to fund public spending – is projected to grow by just 4% in total. 

While a declining birth rate might relieve some of the pressure on education spending over the next 20 years, spending on the state pension, the NHS and on social care will grow significantly if the commitments made by the current and previous governments to provide for income in retirement, universal free health care and an increasing level of social care provision are to be met, at the same time as running public services to the standard required.

Kwasi Kwarteng’s predecessors have been able to cover the expanding share of public spending going on pensions and health and social care without raising taxes above 40% of the economy by cutting spending on public services, in particular the defence budget, which has declined from in the order of 10% of GDP to around 2% over the last half century. However, with defence already at the NATO minimum, and many public services under significant pressure to improve delivery, there is much less scope to find savings than there has been in the past.

This poses a very big challenge for the Chancellor as he puts together his medium-term fiscal plans. Economic growth needs to be much higher than it has been in recent years, not only to cover the cost of tax cuts that he hopes will generate that growth, but also to generate the extra tax receipts needed to fund pensions and health and social care as more people live longer lives.

This chart was originally published by ICAEW.