The beginner-friendly guide to UK savings & investing

Updated 18 Jan 2026

Most people only need to understand a handful of concepts to make good decisions with their money. This glossary helps you get there.

This resource was made to help you learn about the different types of accounts where you can save and invest, what you can put in them, what each of them cost, and what tax you'll pay. There's over 50 short articles explaining key money terms and concepts. All are explained in plain English and linked together. Start from whatever's confusing you and keep reading until you know enough.

Most finance sites explain jargon with more jargon. Scrimpr doesn't.

Growing your money in three steps

1

Save 0-5 years

Keep money safe for emergencies and short-term goals

2

Inflation the catch

Understand that cash loses value over time

3

Invest 5+ years

Grow the rest for long-term goals

Save first. Invest what you don't need for years.

Savings & Investing Simplified

Key concepts explained · Click any term to learn more

Not sure where to start? Try: ISAFundIndex FundOCF

What You Can Buy

Shares A small piece of ownership in a company. When the company does well, your share becomes worth more. Fractional Shares A way to buy part of a share when you can't afford a whole one. Useful for expensive shares or investing small amounts. Equity Another word for shares. You'll see it in terms like "equity fund" which means a fund that holds shares. Fund A way to invest in many companies at once, without buying them one by one. One purchase, hundreds of investments. ETF (Exchange-Traded Fund) A fund that trades on the stock exchange. One purchase can give you a share in hundreds of companies. OEIC (Open-Ended Investment Company) The most common type of fund in the UK. One price per day, easy to set up for monthly investing. Index Fund A fund that tracks a list of companies, like the FTSE 100. Low fees because no one is picking stocks. Tracker Fund Another name for an index fund. A fund that automatically follows a list of companies. Accumulation Fund A fund that automatically reinvests any income it earns. Your holding grows instead of cash landing in your account. Income Fund A fund that pays you cash regularly instead of reinvesting it. Used by people who need income from their investments. Distributing Fund An ETF that pays dividends out as cash. Same as an income fund, just different label. Investment Trust A company that invests in other companies. Traded on the stock exchange like a share. Multi-asset Fund A fund that holds a mix of shares and bonds in one package. One purchase, a complete portfolio. Bond A loan to a company or government that pays you interest. Lower risk than shares, but usually lower returns too. Gilts Bonds issued by the UK government. Very low risk because the government has never failed to pay them back.

Pensions

Safe Withdrawal Rate How much you can take from your pension each year without running out. The value often quoted is 4%. Pension A way to save for retirement with tax benefits. The government tops up what you put in. State Pension A regular payment from the government when you reach pension age, based on your National Insurance record. Workplace Pension A pension set up by your employer. They pay in too, so it's free money on top of your salary. Personal Pension A pension you set up yourself, separate from any workplace scheme. Defined Contribution Pension A pension where you build up a pot that depends on how much goes in and how well it's invested. Defined Benefit Pension A pension that promises a guaranteed income in retirement, usually based on your salary and years worked. Auto-enrolment When your employer automatically puts you into a workplace pension. You can opt out, but you'd lose free money. Pension Contributions Money you or your employer pay into a pension. The government adds tax relief on top. Annual Allowance The maximum you can pay into pensions each year while still getting tax relief. Currently the annual allowance is £60,000. Pension Age The age you can start taking money from your pension. Currently the age is 55 for private pensions, 66 for the State Pension. But these are rising by one year in 2028. Crystallise The term for when you start accessing your pension - taking your tax-free cash or setting up an income. Tax-free Lump Sum The 25% of your pension you can take as cash without paying any tax. Drawdown Taking money from your pension while the rest stays invested. You control how much and when. UFPLS (Uncrystallised Funds Pension Lump Sum) Taking lump sums directly from your pension - 25% tax-free, 75% taxed as income. Annuity Using your pension pot to buy a guaranteed income for the rest of your life.
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