Compare 3-Year Fixed Rate ISAs

  • Maximise your tax-free allowance.
  • Compare each fixed-rate cash ISA
  • Find higher interest rates

3 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 4.15%
  • Term: 3 Years
  • Invest From: £1,000

ISA transfers in allowed. FSCS Protected. Must be UK resident and aged 16 or older. Withdraw cash early if you need to (subject to loss of interest)

3 Year Fixed Rate Cash ISA

from M&S Bank

Interest Rate (AER) 3.75%
  • Term: 3 Years

What is a 3-year fixed rate ISA?

ISAs are great ways to save money and earn a return on your investment. Whether you’re planning on buying your first home, saving for a child, or wanting a healthy nest egg, opting for an ISA over a traditional savings account gives you more control.

There are plenty of fixed ISAs to choose from, but the 3-year rate provides fixed interest for 36 months.

How does a 3-year fixed-rate ISA work?

Usually, a three-year fixed-rate ISA requires you to lock your cash within the account for that period of time. Some accounts may allow early full or partial withdrawals, but most will issue an interest-based penalty, which means you receive less money back.

Fixed-rate ISAs commonly require a minimum deposit amount to open or transfer into the account.

In return for locking your cash within the account, providers will offer a fixed interest rate. These rates will remain the same for three years, regardless of the economy.

Of course, this also means you won’t be able to take advantage of lower interest rates.

The benefits of three-year fixed ISAs

A three-year fixed ISA strikes a good balance between giving you a decent interest rate and stabilising the commitment period. Here’s a breakdown of the main perks:

Fixed interest rates

When you enter into a three-year fixed-rate cash ISA, you have ongoing security and peace of mind. The Bank of England’s base interest rate can change during economic downturns, but your interest won’t, which gives you more stability.

Tax-free earnings

As with other ISAs, your interest is tax-free, so your savings grow faster. If you save the maximum amount of £20,000 in one year, opting for higher interest rates means you’ll save more money in the long run.

Plan ahead

While traditional ISAs offer some benefits, there’s always a temptation to access your savings. Three-year fixed-rate cash ISAs are more secure than general savings accounts, as they lock in the funds, which means you can’t access them until the three years are up.

Potential drawbacks include:

  • Withdrawal Fees: Some ISA accounts will let you withdraw money even with fixed dates, but you’ll have to factor in potential fees. An interest penalty could also mean you miss out on the rates, even though you’ve built the savings up over time.
  • Less Flexibility: Some people like having Individual Savings Accounts that offer more flexibility. If you need to withdraw money for an emergency purchase, you can access the account immediately. Of course, this also means that you’re dipping into your savings.
  • Missed Opportunities: There’s no doubt that fixed interest rates provide more security and stability, but there’s always a risk of missing out on better interest rates, If the market changes, that could mean you don’t get the best deals.

Does a three-year fixed-rate cash ISA suit your needs?

While a three-year fixed ISA has many advantages, it’s important to remember the reduced flexibility. If you need to withdraw early, penalties or lost interest could occur.

If you’re not sure this ISA fits your financial situation, it might be worth chatting with a financial advisor.

Would a different fixed term be better?

When choosing a fixed-rate account, it’s important to consider the duration. Three-year fixed-rate cash ISAs are ideal if you’re saving for the future, including buying a home or using the money for school fees, but a shorter term might be best if you want to access the money sooner.

In contrast, longer-term ISAs that last four or five years protect you against changing interest rates and ensure you have a healthy cash injection for future investments.

Have you considered an alternative ISA?

Tax-free savings accounts are a popular financial product in the UK, so plenty of options are available. The most popular include:

  • Fixed Rate ISAs: As mentioned, there are different terms available. Opting for longer or shorter fixed-rate ISAs might help you meet your financial goals.
  • Instant Access Cash ISA: You can also choose Instant and Easy Access ISAs. These products usually allow savers to make withdrawals whenever they want without incurring a penalty for doing so.
  • Stocks & Shares ISA: A Stocks & Shares ISA is one of the best ways to plan for the future. These products can potentially have unlimited returns on your initial investment, and you won’t have to worry about paying any capital gains tax.

Using an ISA calculator can help you make a decision that suits your current and future needs.

Before opening a Cash ISA

Eligible individuals are only allowed to open one Cash ISA each tax year (although they may be able to transfer to another). As such, it can be wise to shop around different providers and accounts before taking one out to find the product that best fits your savings needs.

You can use the tables above on this webpage and elsewhere on the site to view a selection of different kinds of ISA and follow the links to find out more or apply for one.

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Important Risk Information:

Capital at risk. Tax treatments depend on your individual circumstances and may change. The value of investments can go down in value as well as up, so you could get back less than you invest. It is, therefore, vital that you understand the risks and commitments. This website aims to provide information to help you make your own informed decisions. It does not provide personal advice based on your circumstances. If you are unsure of how suitable an investment is for you, please seek personal advice.

Frequently Asked Questions

Does a three-year fixed-rate cash ISA have a minimum initial deposit?

It depends on the provider you choose and what their restrictions are. Some will have a high deposit, while others ensure customers have more flexibility. You can compare the products above and see which have low or no minimum deposits.

How do I choose a fixed-rate cash ISA?

When choosing a fixed-rate cash ISA, remember to weigh up your options and decide which suits your needs. There’s no right or wrong here, so don’t be afraid to shop around and view different companies before choosing one.

Remember to check whether the company is legal and has the correct authorisation to offer ISAs. Failing to do this and choosing a company that doesn’t have the necessary regulations could mean you’re ineligible to receive support from the Financial Services Compensation Scheme (FSCS).

What if interest rates change while I'm in the middle of my fixed term?

In most cases, you’ll wait until the fixed interest rate term ends. If you’re nearing the closing date, you might be able to renew early, but it depends on your unique circumstances.