The State Pension is the foundation of retirement income for most people in the UK — but it is a foundation, not a house. In 2026–27, the full new State Pension pays £230.25 per week, or roughly £11,973 per year. The Pensions and Lifetime Savings Association (PLSA) estimates that a "moderate" standard of living for a single person in retirement costs around £31,300 per year in 2026. The gap — nearly £20,000 — must come from somewhere else, and for most people, that means a private pension.
This guide compares what the State Pension provides with what a private pension can deliver, explains how tax relief makes private saving extraordinarily efficient, and sets out what you need to do to bridge the retirement gap. This is general information, not financial advice.
The State Pension: what you get
The new State Pension applies to people who reached State Pension age on or after 6 April 2016. To receive the full amount, you need 35 qualifying years of National Insurance contributions or credits. You need at least 10 years to qualify for anything.
At £230.25 per week in 2026–27, the full new State Pension provides:
- £11,973 per year
- £998 per month
The State Pension is protected by the triple lock, which guarantees it rises each year by the highest of: average earnings growth, CPI inflation, or 2.5%. In 2026–27, the increase was 4.1% (linked to earnings growth).
Crucially, the State Pension is taxable income. If your total income in retirement — including the State Pension and any private pension income — exceeds the personal allowance (£12,570 in 2026–27), you will pay income tax on the excess. The State Pension is paid gross (without tax deducted), so any tax due is collected through your tax code on other income or via self-assessment.
Private pensions: workplace and personal
A private pension is any pension arrangement outside the State Pension. The two main types are:
Workplace pensions
Since 2012, auto-enrolment has required employers to enrol eligible workers into a workplace pension and contribute to it. The minimum total contribution is 8% of qualifying earnings (between £6,240 and £50,270), of which the employer must pay at least 3%. Many employers contribute more — 5%, 7%, or even 10%+ — as a recruitment and retention tool.
The key advantage of a workplace pension is the employer contribution: it is effectively free money added to your retirement savings. Opting out means giving up this contribution, which is almost always a poor financial decision.
Personal pensions (including SIPPs)
A personal pension or Self-Invested Personal Pension (SIPP) is one you set up yourself, independent of any employer. You choose the provider, the investments, and how much to contribute.
The tax treatment is identical to workplace pensions:
- Contributions receive tax relief at your marginal rate — a £100 contribution costs a basic-rate taxpayer £80, a higher-rate taxpayer £60, and an additional-rate taxpayer £55.
- Investments grow free of capital gains tax and income tax.
- At retirement (from age 57, rising to 58 in 2028), you can take 25% of the pot tax-free (up to the lump sum allowance of £268,275), with the remainder taxed as income.
The retirement gap: what you need
The PLSA Retirement Living Standards provide the most widely cited benchmark for retirement costs in the UK. For 2026, the estimates for a single person are:
| Living standard | Annual income needed | What it covers |
|---|---|---|
| Minimum | £14,400 | Basic food, heating, one week UK holiday, no car |
| Moderate | £31,300 | Some eating out, one foreign holiday, running a car |
| Comfortable | £43,100 | Regular meals out, two holidays, replacing car every 5 years |
The full State Pension covers roughly 83% of a "minimum" retirement but only 38% of a "moderate" one. For a couple, the numbers roughly double for the moderate and comfortable standards, and two full State Pensions provide about £23,950 — leaving a gap of roughly £38,600 for a moderate couple's retirement.
How much you need to save
The size of the private pension pot required depends on how you draw it down. A common rule of thumb is the 4% rule: a pot of £250,000 can sustainably provide roughly £10,000 per year (adjusted for inflation) over a 30-year retirement, assuming it remains invested in a balanced portfolio.
Using that benchmark, bridging the gap between the State Pension and a moderate retirement looks like this:
- Single person gap: ~£19,300 (moderate minus State Pension)
- Pot required: ~£480,000
- Couple gap: ~£38,600
- Pot required: ~£965,000
These are substantial numbers, but they are achievable with consistent contributions over a working lifetime, thanks to compound growth and tax relief.
What monthly contributions deliver
Here is what a monthly contribution can grow to over different time horizons, assuming 5% annual real (after-inflation) investment growth:
| Monthly contribution | After 20 years | After 30 years | After 40 years |
|---|---|---|---|
| £200 | ~£82,000 | ~£167,000 | ~£305,000 |
| £400 | ~£164,000 | ~£334,000 | ~£610,000 |
| £800 | ~£328,000 | ~£668,000 | ~£1,220,000 |
These figures include basic-rate tax relief (the actual cost to you is 80% of the contribution amount). Employer contributions add further value on top.
Head-to-head comparison
| Factor | State Pension | Private Pension |
|---|---|---|
| Annual amount (full, 2026–27) | £11,973 | Varies by contributions and growth |
| How you qualify | 35 years of NI contributions | Voluntary contributions + tax relief + employer contributions |
| Tax relief on contributions | N/A | 20%/40%/45% |
| Employer contributions | N/A | Yes (workplace) — minimum 3%, often more |
| Access age | 66 (rising to 67, then 68) | 57 (rising to 58 in 2028) |
| Tax-free lump sum | None | 25% of pot (up to £268,275) |
| Inheritable | No (limited survivor benefits) | Yes — outside estate for IHT if death before 75 |
| Inflation protection | Triple lock | Depends on investment performance |
Who needs what
Relying on the State Pension alone means a retirement at or near the PLSA "minimum" standard. It covers basic needs but leaves no room for holidays, meals out, helping family, or unexpected costs. For someone who has always lived frugally and owns their home outright, this may be acceptable — but it is a tight budget.
Adding a workplace pension — even at the auto-enrolment minimum — significantly improves the picture. Someone earning £35,000 who contributes 5% with a 3% employer match from age 22 to 67 could build a pot of roughly £250,000–£300,000 (in today's money), providing an additional £10,000–£12,000 per year. Combined with the State Pension, that reaches a moderate retirement standard.
Maximising private pension contributions — especially for higher-rate taxpayers who receive 40% or 45% relief — is the most tax-efficient way to build wealth in the UK. The combination of upfront relief, tax-free growth, and a 25% tax-free lump sum at retirement is unmatched by any other savings vehicle.
The bottom line
The State Pension provides a baseline — roughly £12,000 per year in 2026–27 — that is essential but insufficient for most people's vision of retirement. A private pension — whether through a workplace scheme or a personal SIPP — bridges the gap, and the tax relief, employer contributions, and compound growth make it the most powerful savings tool available.
The earlier you start, the less you need to contribute each month to reach the same outcome. Someone starting at 25 needs to save roughly half as much per month as someone starting at 40 to reach the same pot. If you do nothing else, stay enrolled in your workplace pension and check that you are on track for the full State Pension — you can verify your NI record on GOV.UK in minutes.