Are stocks and shares ISAs worth it?

Learn about the pros and cons of a stocks and shares ISA and whether it is right for you.

Published: 22 Oct 2024 Last updated: 14 Aug 2026

Key points:

  • Stocks and Shares ISAs let you invest tax‑efficiently, with no UK tax on returns.
  • They can offer higher long‑term growth than cash savings, but values can go up or down.
  • Investing is typically suited to longer timelines, often at least five years or more.
  • Whether they’re worth it depends on your goals, risk appetite and investment timeframe.

A stocks and shares ISA is tax efficient investment product that allows you to invest in a way that suits you. They’re sometimes referred to as a tax ‘wrapper’ as any money in them is sheltered from both Income Tax and Capital Gains Tax. 

In this article we’ll discuss whether a stocks and shares ISA might work for you. 

Tax rules can change and any benefits will depend on your personal circumstances.

What are the tax benefits of a stocks and shares ISA?

Every new tax year your ISA allowance will reset. As of right now your yearly allowance is £20,000, this is a combined total across any ISAs that you have.

Like we said earlier, your stocks and shares ISA is free from Capital Gains and Income Tax, on any investment growth or dividend income.

What are the pros and cons of a stocks and shares ISA?

Pros Cons
Potential for higher returns – By investing there is the possibility you could make more money than what you put into it. Risk of loss – What goes up may come down, so there is the possibility you could get back less than what you put in.
Dipping your toe into investing – As it’s an investment product you can pick from a range of investment options to suit you. It’s not easy – Managing a diversified portfolio requires knowledge of the stock market, and if you’re unsure this can be complex and time-consuming. Some providers offer ready made funds, or other options if you are not comfortable managing your own investments.
Tailored choices – You’ll be able to pick from a range of investments with different risk levels, meaning you can put your money where you’re comfortable. Market volatility – stock markets can be volatile. This might become stressful if you’re not comfortable with the risk. ISAs generally are seen as a long term investment, so you’d need to be ok with seeing dips as well as rises.
The tax wrapper – Because a stocks and shares ISA is exempt from Capital Gains and Income Taxes on any investment growth or dividend income, they can be a great savings option. Fees and charges – When choosing an ISA provider, it’s important to check on management fees, transaction costs and any other charges that may eat into your returns.
Regular savings options – Many stocks and shares ISA will allow you to set up a direct debit so you can make regular monthly contributions. Helping you stay disciplined when it comes to savings. If it is not a flexible ISA it can prevent you from maximising your annual allowance, as any money taken out cannot be re-invested in the same tax year.
Flexibility - A flexible ISA lets you withdraw money and then replace it in the same tax year without affecting your annual allowance.  

What other ISA account types are available?

If a stocks and shares ISA isn't what you're looking for, here's another 4 tax-efficient options:

Cash ISA 

If you want to save but don't want the ups and downs of investing, and a lot of providers will offer easy access to your money should you need it.

Innovative finance ISA 

This invests your money in peer-to-peer lending.

Lifetime ISA

If you’re aged between 18-39 and are saving up for your first home, or your retirement, you can pay in a maximum of £4,000 each tax year and the government will add a 25% bonus up to £1,000 on any money you invest.

Junior ISA (JISA)

If you’re a parent or guardian you can open a JISA for your child as long as they're under 18. You can pay in up to £9,000 per child per tax year and you can have it as either a cash or stocks and share ISA, or one of each.

You can find out more in our article ‘How do ISAs work?’

Is a stocks and shares ISA right for me?

A stocks and shares ISA could be worth considering if you're investing for the longer term and are comfortable with the value of your investments rising and falling. It may suit people looking for growth potential while benefiting from the tax advantages of an ISA.

If you'll need your money in the short term or prefer not to take investment risk, a cash ISA may be more suitable. 

Before choosing an ISA, think about your financial goals, investment timeframe and attitude to risk. If you're unsure, you may wish to speak to a financial adviser. An adviser will charge for their services.

Related articles

Rules

How many different ISA accounts can I have?

Comparisons

Cash ISA versus stocks and shares ISA: which one is right for you?

Rules

Can you withdraw money from your ISA account?

Searching for a stocks and shares ISA?

Start investing with our flexible ISA from just £25 a month. Investment values can rise and fall.

Explore our ISA

Invest your ISA allowance

With an Aviva Stocks & Shares ISA you could grow your wealth in a tax-efficient way. Investment values can rise and fall.