Understanding ISA investment basics

An ISA, or individual savings account, is a tax-efficient wrapper for savings and investments. Quite simply, if you have cash savings or are investing, there is no reason not to use an ISA wrapper.

Each tax year, we are each given an annual ISA allowance. It is a ‘use it or lose it’ allowance, meaning that if you don’t use all or part of it in one tax year, you cannot take that allowance over to the next year.

Many people leave their ISA investing to the last minute, but this simple introduction and our how to choose a managed fund guide should help you stay motivated throughout the year.

See our views and research all Elite Rated funds

What are the main benefits?

There are various tax advantages to saving or investing through an ISA. Some of the main benefits include:

  • No capital gains tax to pay on any capital growth
  • No tax to pay on any income received, either as interest or dividends, from the investment or cash savings
  • You don’t have to declare ISAs on your tax return
  • Access your investments whenever you wish, with no notice period (although it may take up to 10 days for the money to clear into your bank account).
  • There can be notice period for some cash savings held within an ISA wrapper, but not all. This is dependent on the provider of the cash product – they may offer a special interest rate for a certain period and in return insists savers give notice before withdrawing money.

There are also tax-free allowances for interest earned on savings and from company dividends in investments held outside the ISA wrapper, but they are limited and tax must be paid on amounts above the allowance limit.

Types of ISAs and their allowances

From 6 April 2016, there will be five different types of ISA.

1. Cash ISA

Anyone over the age of 16 can put their cash savings into a Cash ISA. Accounts can be either instant access, have notice periods or have fixed terms.

The annual allowance for a Cash ISA is £20,000. You can invest up to this full amount in your Cash ISA, or you can share this allowance between a Cash, Stocks & Shares, Innovative Finance ISA and a Lifetime ISA.

2. Stocks & Shares ISA

Anyone over the age of 18 can put individual shares or managed funds into a Stocks & Shares ISA.

The annual allowance for a Stocks & Shares ISA is £20,000. You can invest up to this full amount in your Stocks & Shares ISA, or you can share this allowance between a Cash, Stocks & Shares, Innovative Finance ISA and a Lifetime ISA.

3. Innovative Finance ISA

This ISA is for investments in peer-to-peer lending platforms such as Zopa, Ratesetter and Funding Circle. You must be over the age of 18 to invest.

The annual allowance for an Innovative Finance ISA is £20,000. You can invest up to this full amount in your Innovative Finance ISA, or you can share this allowance between a Cash, Stocks & Shares, Innovative Finance ISA and a Lifetime ISA.

4. Help to Buy ISA

This ISA has been introduced to help first time buyers over the age of 18 get on the property ladder. You have to choose between either a Cash ISA or a Help to Buy ISA, but you can have a Help to Buy and a Stocks & Shares ISA in the same tax year.

You can kick start your Help to Buy ISA with a lump sum deposit of up to £1,200. You can then save up to £200 a month.

For every £200 you save, the government will add 25% up to a maximum bonus of £3,000. It’s available per buyer, not household, so if you are saving with a partner, the bonus potential is up to £6,000 towards your house deposit.

5. Junior ISA

Cash or investments can be wrapped in this ISA on behalf of children under the age of 18. The Junior ISA has an annual allowance of £4,128.

NB: You must be a UK resident or crown employee to invest in any type of ISA.


How much will it cost?

When deciding on the type of ISA and asset in which you want to invest, it is important to consider the charges involved.

ISA money saved into cash does not incur any initial or annual charges, but ISA money invested into a fund, individual stock or peer-to-peer lending platform does. The type and level of charges vary from provider to provider.

You can expect to pay three different annual charges for fund investment:

  1. A fund management charge
  2. A platform or provider charge
  3. A service charge.

Be aware that some headline charges are not indicative of total costs and it is important to research fees thoroughly to make sure you understand any additional costs you may personally incur.

Learn more: How to choose a fund

What might your returns be?

Even after charges, an investment ISA is likely to produce better returns than a Cash ISA over the long term. Of course, it’s important to understand that investing in funds and stocks is much higher risk than keeping your money in cash, as its value will move up and down, and it is possible to lose money.

This short-term volatility is one very good reason why a longer time frame is usually recommended for these types of investments.

Learn more: Understanding investment risk

Looking at a period of 20 years, here is a simple comparison (without taking into account charges or inflation):

  • A monthly contribution of £500 into a Cash ISA, returning 2% (similar to the best cash rates currently), should give you a pot of money worth £147,644 over 20 years
  • A monthly contribution of £500 into a Stocks & Shares ISA, with 7% gains achieved, would grow your pot of money to £261,982 over 20 years.

What’s right for you?

Choosing between a Cash ISA or an investment ISA such as the Stocks & Shares will depend on the level of risk you are comfortable taking with your money, as well as factors such as how soon you will need to access your money.

If you do opt for cash, picking a Cash ISA product can be fairly simple. The main considerations are interest rate paid, length of time the interest rate is valid, and whether you want instant access or are willing to tie up your money for a fixed period of time.

Selecting investments for a Stocks & Shares ISA is tougher. If you’re considering funds, there are more than 3,000 available in the UK – which is why we started FundCalibre and our Elite Ratings for funds.

Our experienced research team analyses the funds that are widely available to UK retail investors and identifies those which they believe have the most skillful managers.

These funds are awarded an Elite Rating. This rating should in no way be construed as advice. It is solely our opinion. You can use FundCalibre to narrow down your choices and help you select a fund in which to invest.

If you require individual investment guidance you should seek expert advice.

Past performance is not a reliable guide to future returns. You may not get back the amount originally invested, and tax rules can change over time. The views of the author and any people interviewed are their own and do not constitute financial advice.