Types of ISA
Choosing the right ISA depends on your financial goals, time horizon and risk tolerance. Key types include:
Stocks & Shares ISA
A Stocks & Shares ISA allows you to invest in shares, funds, investment trusts, bonds and other assets within a tax-free wrapper. Any growth and income is sheltered from tax. This can suit those with a longer investment horizon of at least five years who are comfortable with the possibility that investments can fall as well as rise. You could get back less than you invest.
The tax advantage compounds significantly over time. Consider a higher-rate taxpayer investing £20,000 a year at 7% average annual returns. After 10 years, the difference between a taxable account and an ISA is around £25,000. After 20 years, that gap widens to approximately £130,000. After 30 years, the ISA could be worth around £2 million compared to roughly £1.6 million in a taxable account; a difference of £400,000, generated entirely by sheltering returns from tax.
Historically, equities have delivered average annual returns of around 7 to 10% over multi-decade periods, compared to cash savings rates of between 1 and 5%. Historical data shows that holding periods of five years or more have almost always produced positive returns in developed stock markets, though past performance is no guarantee of future results.
Cash ISA
A Cash ISA works much like an ordinary savings account, but any interest you earn is free from income tax. It typically suits those who need easy access to their money, have a shorter time horizon of one to five years, or prefer not to take investment risk.
However, in periods of higher inflation, cash savings can actively lose purchasing power. For example, £20,000 earning 2% interest while inflation runs at 5% loses £600 in real value each year.
We do not offer a cash ISA, but we do pay variable rates of interest on uninvested cash held in our Stocks & Shares ISA account.
Lifetime ISA
The Lifetime ISA (LISA) is available to those aged 18 to 39. You can contribute up to £4,000 per year, and the government adds a 25% bonus on top, worth up to £1,000 annually. It can be used either to buy a first home or to access savings from age 60.
The significant caveat is a 25% withdrawal penalty if you take money out for any other reason, which effectively eats into your own contributions as well as the bonus. The £4,000 LISA limit counts towards your overall £20,000 annual ISA allowance.
Junior ISA
A Junior ISA (JISA) is a tax-free savings and investment account for children under 18, with a separate annual allowance of £9,000 per child, independent of the adult £20,000 ISA allowance. All gains and income are completely free from UK tax, though the money cannot be accessed until the child turns 18.
A child can hold one Cash Junior ISA and one Stocks & Shares Junior ISA at the same time, but not two of the same type, and the £9,000 allowance is shared across both accounts. For example, if £4,000 is deposited into a Cash Junior ISA, up to £5,000 can be added to a Stocks & Shares Junior ISA in the same tax year.
Given the long investment horizon before a child can access the funds, many families favour the Stocks & Shares version to maximise long-term growth potential.
A parent or legal guardian with an active investment account can apply for a Junior ISA on behalf of a child, while step-parents or foster carers can apply only if they hold legal guardianship.
