# What is the best way to save a lump sum in the UK?

> Quick answer · Last updated 4 July 2026

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## In short

Split the sum across easy-access cash for emergencies, fixed-term bonds for higher rates on money you will not need soon, and ISAs if you are a higher-rate taxpayer or expect to exceed your Personal Savings Allowance. For five years or more, consider a Stocks & Shares ISA.

Start by keeping three to six months of essential spending in an easy-access account you can reach within a day or two. For 2026/27, top easy-access rates often sit below fixed bonds but give flexibility if you might need the money for a house deposit, tax bill or unexpected expense.

Money you will not touch for one to five years can go into fixed-rate bonds or fixed ISAs, which typically pay more in return for locking the cash away. If you are a higher-rate taxpayer — Personal Savings Allowance £500 — or additional-rate taxpayer — £0 allowance — a Cash ISA shelters interest completely up to the £20,000 annual ISA limit.

For horizons of five years or longer, a Stocks & Shares ISA offers tax-free growth potential that historically has beaten cash after inflation, though values can fall. Splitting a large lump sum across providers can also keep each balance within the £85,000 FSCS limit per banking licence.

## Related

- [Do I need a Cash ISA?](https://moneyguide.org.uk/answers/do-i-need-a-cash-isa/)
- [Savings & ISAs guide](https://moneyguide.org.uk/savings/)

## Primary source

gov.uk/individual-savings-accounts

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Independent UK money guidance from [Money Guide](https://moneyguide.org.uk). Information only — not regulated financial advice.