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ISA Advantages and Disadvantages (A 2022 List)

Written by, Marija Petkova

Updated May, 13, 2022

The individual savings account, or ISA, is a tax-advantaged savings vehicle available to UK residents.

There are several different types of ISAs, each with its own set of pros and cons.

In this article, we’ll take a closer look at various ISA advantages and disadvantages so you can decide if opening one is right for you.

Note: For more information on what an ISA is and the different types of individual savings accounts you can have, take a look at this insightful guide.

What Are the Benefits of an ISA?

ISAs are one of the most popular ways to save money in the UK. 

Here is a brief overview of the various ISA benefits available to British residents:

You don’t have to pay tax on your returns 

One of the biggest advantages of an ISA is that you don’t pay tax on your returns. In other words, all interest earned from investments in your stocks and shares ISA (profit from share price increases, interest on bonds, or dividend income) is not liable to income or capital gains tax (CGT).

This means that you can keep more of your money in your account and let it grow over time. If you are in a higher tax bracket, the tax savings could be even greater.

Withdrawals from your ISA are not taxable

If you have an easy-access cash ISA you can withdraw money at any time without paying tax. Bear in mind though that different providers limit the amount of times you can make withdrawals and these ISAs typically come with variable interest rates. Also, if you hold a fixed-rate cash ISA you will not be able to withdraw any funds while your money is locked.

Note: In terms of stocks and shares ISA, withdrawals are not recommended as these accounts work best over a longer period of time.

ISAs are flexible 

You can save in a variety of different ways, choosing from cash, unit trusts, corporate and government bonds, and investment funds. This gives you a lot of flexibility when it comes to how you save your money.

What’s more, ISAs offer a wide range of investment opportunities that can be tailored to your specific needs. Whether you are looking for long-term growth or setting up a nest egg for retirement or your child’s future, there is an ISA that can fit your savings goals.

You can transfer your ISA from one provider to another 

You can also move your money between different types of ISAs, and even between providers, without having to pay any tax on the gains. This way you can take advantage of competitive interest rates and switch providers if you find a better deal.

Note: Different providers may have different rules about how many times you can transfer your ISA and what happens to the money you’ve already saved. Always read the fine print before transferring.

There are no upper age limits with ISAs

Anyone over the age of 18 can open an ISA, while parents/guardians can open a Junior ISA when their child is 16. This makes them a popular choice for younger people who are just starting to save for their future. 

ISAs also offer tax benefits for pensioners, allowing them to save money before or after they retire as these accounts do not have upper age restrictions. A self-investment personal pension (SIPP), on the other hand, has an upper age limit of 75.

You can inherit your spouse/partner’s ISA allowance 

If your spouse or civil partner died after April 2018, you can inherit their ISA allowance and add it to your account along with your regular annual allowance. While it might not be considered a large inheritance, it is still an advantage of ISAs over other types of savings accounts. 

Note: The money you can add to your account must not exceed the value of the ISA when your partner/spouse died or the value of the ISA when it was closed. 

What Are the Disadvantages of an ISA?

While there are many ISA benefits to UK residents, there are also some drawbacks that you should be aware of.

Contributions are limited 

The amount you can contribute to an ISA is limited each year. The limit is set by the government and it changes every financial year. For the 2022/2023 tax year, the maximum allowance is £20,000.

Even though you can spread the allowance over several types of ISAs, you are still restricted with the amount of money you can put in your accounts, which is not the case with Personal Savings Accounts (PSA).

Another downside is that your yearly allowance does not carry forward. So, if you don’t use all of your £20,000 allowance in the tax year, you will lose it.

Your investments could lose value

Every time you invest your money, even if it is a low-risk investment, you are taking a gamble. Your investments could lose value, so it is important to do your research and speak to a professional before picking a provider and an investment opportunity.

You can’t withdraw money from all types of ISAs

There are some types of ISAs that do not allow you to withdraw money whenever you want. So if your ISA is not flexible, the money you take out will count towards your ISA allowance. Even with a flexible ISA, the money you withdraw has to be put back into the account by the end of the tax year, otherwise, you lose your ISA tax benefits.

ISAs may be unsuitable for a short-term investor

ISA accounts may not be the best option for short-term investors as they tend to work best over a longer period of time (at least 5 years for stocks and shares ISA). This is because you are unable to withdraw any funds while your money is locked in the account—another reason why you should consult an expert who will guide you towards the best ISA for your needs.

Is Saving in an ISA Worth It?

ISAs can be a great way to save money as the interest you earn is tax-free. This is particularly beneficial to higher rate taxpayers, i.e. those who earn well above the median UK salary, or savers have who have accumulated a lot over the years. On the downside, you are limited with how much you can contribute each year and not all types of ISAs allow you to access your money whenever you want.

That is why it is important to weigh up the pros and cons before opening an ISA. Talk to an expert consultant who will be able to help you find the right savings account for your needs.

Frequently Asked Questions And Their Answers

What are the negatives of an ISA?

The biggest drawback is that you are limited in how much you can contribute each year. Additionally, if you need to access your funds, you may have to pay a penalty, which can reduce your savings. Lastly, your investments could lose value, so it is important to do your research before investing.

Are ISAs safe?

ISAs, especially cash ISAs are considered safe, as your money is not technically invested into any assets. Your funds in a cash ISA are also covered by the Financial Services Compensation Scheme (FSCS), a government-backed scheme that protects your savings up to £85,000 per person, per financial institution.

This is not the case with a stocks and shares ISA. Here the likelihood of losing or regaining your money depends on where it is invested.

What Are the Advantages and Disadvantages of a Lifetime ISA?

A Lifetime ISA is an account that can be used to save for retirement or as a deposit for your first home. The account has a limit of £4,000 per year and you can receive a government bonus of 25% on contributions, which is one of the main advantages of a LISA.

As with other ISAs, the money you put in and the interest you earn is tax-free.

However, when touching upon Lifetime ISA pros and cons, it’s important to mention that the money you contribute every year to your LISA cannot be accessed unless you are using it as a deposit to buy your first home, before you are 60 or if you are terminally ill. If you withdraw money from your account for any other reason, you will lose your government bonus and pay a 25% exit fee leaving you with less money than what you have saved.

Is an ISA better than a savings account?

Here is a breakdown of ISA advantages and disadvantages and how they compare to savings accounts:

ISA Savings Account
Can only contribute up to £20,000 per tax year Deposits are not limited 
Tax-free  You pay tax on interest that exceeds your personal savings allowance 
Flexibility in investment products  Only cash investments 
You can only open one type of ISA a year No limit on the number of accounts you can open


My name is Marija, and I'm a financial writer at DontDisappointMe. Although finance might not be everyone's cup of tea, my 10+ years of working in one of the biggest banks in my country, and my interest in extensive research on everything finance/investment-related, have made me somewhat of an expert in the field (if I do say so myself). No longer having the passion to work in a corporate setting, I decided that I couldn't let all of this knowledge go to waste so I started writing. And, here I am! Today I try to share my knowledge with my audience in the hopes of making this topic as simple and interesting as possible. In my leisure time, I like spending time with my family and travelling to new locations.