Pensions, ISAs and the basics of investing
How to build up money for later life, which tax-efficient accounts exist and how investing works.
Most people in the UK will rely on a mixture of the State Pension, workplace or personal pensions, and their own savings and investments. The State Pension alone is unlikely to be enough for the lifestyle most people want, so understanding how the other pieces fit together matters, ideally as early as possible, because time is the biggest advantage when saving for the long term.
The State Pension is based on your National Insurance record. You generally need 35 qualifying years for the full new State Pension and at least 10 to get anything. You can check your forecast for free on GOV.UK. The State Pension age is rising from 66 to 67 between 2026 and 2028, so it is worth checking the age that applies to you.
If you are an employee, your employer must usually enrol you in a workplace pension and contribute to it. Pension contributions benefit from tax relief, which makes them one of the most tax-efficient ways to save for retirement, but the money is normally locked away until at least age 55 (rising to 57 from April 2028). ISAs are more flexible: you can save or invest tax-free each year and withdraw at any time, though not every ISA works that way.
Investing means accepting risk in exchange for the chance of higher returns than cash savings. Values can fall as well as rise, and you can get back less than you put in. Keeping costs low, spreading money across many investments and staying invested for the long term are widely accepted principles, but the right approach depends on your goals, your timescale and how you would cope with losses.
What you will find in this section
The State Pension
Who gets it, how to check your forecast and how to fill gaps in your record.
Read the guideWorkplace pensions
Auto-enrolment, employer contributions and what happens when you change jobs.
Read the guidePersonal pensions and SIPPs
When to use one, how tax relief works and what to watch for in charges.
Read the guideISAs
Cash, Stocks and Shares, Lifetime and Innovative Finance ISAs compared.
Read the guideInvesting for beginners
Risk, diversification, funds and fees explained without jargon.
Read the guidePension scams and safe choices
How to spot pension scams and where to find free, impartial guidance.
Read the guideAll pensions & investing guides
How Much Should You Save for Retirement in the UK?
How to estimate how much you need for retirement in the UK: spending, the State Pension, rules of thumb, the pension pot maths and ways to close a gap.
10 min readRead Pensions & InvestingInvesting for Beginners: A Plain-English UK Guide
Investing for beginners in the UK: risk and return, funds and shares, diversification, charges, tax wrappers, how to start and the mistakes and scams to avoid.
11 min readRead Pensions & InvestingISAs Explained: Cash, Stocks and Shares, and Lifetime ISAs
How ISAs work in the UK: cash, stocks and shares, Lifetime and Innovative Finance ISAs, the annual allowance, transfers, rules for children and how to choose.
10 min readRead Pensions & InvestingHow to Spot a Pension Scam and Protect Your Savings
Warning signs of pension scams in the UK, how fraudsters operate, the checks to make with the FCA, what to do if you have been targeted and where to report it.
9 min readRead Pensions & InvestingWorkplace Pensions Explained: Auto-Enrolment and More
How workplace pensions work in the UK: auto-enrolment, contributions, tax relief, defined contribution and defined benefit schemes and opting out.
10 min readRead Pensions & InvestingPersonal Pensions and SIPPs Explained
How personal pensions and SIPPs work in the UK: tax relief, charges, investment choice, accessing your money, annuity versus drawdown and self-employed saving.
10 min readRead Pensions & InvestingThe UK State Pension Explained
How the UK State Pension works: eligibility, qualifying years, State Pension age, how to check your forecast, deferring, and filling gaps in your record.
9 min readReadCommon questions
How many years do I need for the full State Pension?
You generally need 35 qualifying years of National Insurance contributions or credits for the full new State Pension, and a minimum of 10 qualifying years to receive any. You can check your record and forecast on GOV.UK, and in some cases fill gaps by paying voluntary contributions.
What is the minimum I must pay into a workplace pension?
Under automatic enrolment the legal minimum is 8% of qualifying earnings, of which your employer must pay at least 3%. Many employers pay more. You can usually opt out, but you would then give up your employer's contribution.
What is the difference between a pension and an ISA?
Pensions give tax relief on the way in and are generally locked until at least age 55 (57 from April 2028). ISAs have no tax relief on contributions, but growth and withdrawals are tax-free and you can usually access the money at any time. Many people use both.
Is investing the same as saving?
No. Cash savings are generally protected up to certain limits by the Financial Services Compensation Scheme and do not fall in value, though inflation can erode them. Investments can grow faster over the long term but can also fall, and you may get back less than you invest.
Official sources and free help
- MoneyHelper: pensions and retirement(opens in a new tab)
Free, government-backed guidance, including Pension Wise
- GOV.UK: check your State Pension forecast(opens in a new tab)
See your forecast and your State Pension age
- Financial Conduct Authority: ScamSmart(opens in a new tab)
Check whether a firm is authorised and spot pension scams
This page provides general information only. It is not personalised financial, legal or tax advice, and rules and figures can change. Your situation is unique — please check official sources such as GOV.UK and MoneyHelper, and speak to a qualified, FCA-authorised pensions adviser before making important decisions about your money.