Cash ISAs and other ways to save: how to choose what's right for you

Deciding how to save your money is a pretty personal thing. There's no one-size-fits-all solution.

Different savings accounts offer different features. Choosing what's right for you depends on things like:

• How long you're saving for
• How much access you need
• Whether tax efficiency matters to you

So it's important to understand the differences between the different types of savings accounts.

This guide compares cash ISAs with other common types of savings options. So you can decide which option - or combination of options - makes the most sense for your goals.

What is a cash ISA?

A cash ISA is a savings account that lets you earn interest tax-free*, up to the annual ISA allowance. That means:

• You don't pay tax on the interest you earn.
• Interest you earn in a cash ISA doesn’t affect your Personal Savings Allowance (PSA).

A cash ISA can be a good option if:

• You're saving towards a relatively large goal.
• You're saving over the medium-to-long term.
• You don't want your interest to be taxed.

Cash ISAs vs standard savings accounts

Most savings accounts let you earn interest on your money. But that interest might be taxable.

So do you pay tax on your savings? Whether your interest gets taxed depends on your income and how much interest your savings earn.

Most people have a Personal Savings Allowance (PSA):

• £1,000 for basic-rate tax payers
• £500 for higher-rate tax payers
• £0 for additional-rate tax payers

If your savings interest stays within this allowance, you won't pay tax on it.

A standard savings account could suit you if:	A cash ISA could suit you if:
You're saving smaller amounts.	You're saving larger balances.
You want quick or frequent access to your money.	You're saving over several years.
Your interest is likely to stay within your Personal Savings Allowance (PSA).	You want to protect your interest from tax.

You don't necessarily have to choose one or the other. For lots of savers, using both can make sense.

For example, you could keep short-term savings in an account that gives you easy access to make withdrawals. And keep your longer-term savings in a cash ISA.

Cash ISA vs fixed term bonds

With a fixed term bond, you lock your money away for a set period in return for a fixed interest rate. These types of accounts typically offer you a level of certainty. Because you'll get a fixed interest rate for a fixed term; like 1, 2, or 5 years.

You can't usually make withdrawals from a fixed term bond during the term. And your interest may be taxable. 

Meanwhile cash ISAs offer tax-free interest and come with fixed and variable rate options. Withdrawal limits vary with ISAs; some offer limited withdrawals and some don't offer withdrawals at all.

A fixed term bond could suit you if:	A cash ISA could suit you if:
You don't need access to your money for the term length.	You want to consider options that allow withdrawals.
You're focused on locking in a certain interest rate.	You're open to fixed and variable rate options.
Tax isn't a concern  - or you know your interest will stay within your allowance.	You want to save tax-free; particularly if you're close to your Personal Savings Allowance.

Some savers choose to use a mix of both ISAs and bonds. This can help spread money across accounts that balance things like interest rate, access, and tax-efficiency. 

Cash ISAs vs regular savers

A regular saver typically lets you save a fixed amount each month. You’ll usually see them offering competitive interest rates on accounts with smaller balances.

Regular saver accounts help you build savings gradually. You can only deposit a certain amount each month. And there's usually a fixed term for the account, like 12 months. Your interest could be taxable depending on your income and Personal Savings Allowance.

Meanwhile cash ISAs offer tax-free interest and allow lump-sums or ongoing contributions. They can usually hold much larger balances than a regular saver.

A regular saver could suit you if:	A cash ISA could suit you if:
You're building savings month by month for a short term goal.	You already have some short-term savings.
You're aiming for little-and-often saving.	You're saving towards a medium to long-term goal.
You want a disciplined way to start saving regularly.	You want to protect your interest from tax.

 Plenty of savers choose to use a mix of cash ISAs and regular savers; using different accounts for different goals.

Cash ISAs vs Stocks & Shares ISAs

A Stocks & Shares ISA lets you invest your money in assets like shares or bonds. While any growth is tax-free, the value of your investments can go up or down.

Stocks & Shares ISAs can offer the potential for higher returns over the long-term. They're better suited to long-term investing and do carry some investment risk.

Compared to Stocks & Shares ISA, a cash ISA could offer more predictable returns. Plus there's less risk to your capital (within FSCS limits).

A Stocks & Shares ISA could suit you if:	A cash ISA could suit you if:
You're comfortable with investment market ups and downs.	You'd prefer some stability on your returns.
You're aiming for savings growth potential over interest rate certainty.	You don't want to take investment risk.
You're investing for the long-term.	You're saving for a medium or long-term goal.

Again - some savers use both. For example, you could start low-risk savings pot in a cash ISA while investing separately for longer-term plans.

Using different savings accounts together

Lots of people choose not to rely on just one type of saving. It's common to build a mix of savings accounts; each with a different purpose. For example:

• Easy-access savings for an emergency fund.
• Regular saver account for short-term savings sprints and setting good habits.
• Fixed term bonds for locked-in returns
• Cash ISAs for tax-free savings growth over time.

Using a combination that works for you can help you balance what you need in terms of access to your money, interest rate, and tax-efficiency.

How to choose what's right for you

When deciding where to save, it can help to ask:

• How long am I saving for?
• Do I need access to my money? How often?
• Will I earn enough interest to pay tax?
• Do I want interest rate certainty - or not?

Understanding how you feel about these questions - and how different accounts meet those needs - can help you make a confident decision about where to put your money.

 

*Tax-free means the interest you earn isn’t subject to UK Income Tax and Capital Gains Tax. Tax treatment depends on your individual circumstances and could change in future.