Do You Pay Tax on Savings Interest in the UK? 2026 Full Guide

(This information is for the UK tax year 2025/26, which runs from 6 April 2025 to 5 April 2026. Tax rules can change and depend on your individual circumstances.)

Okay, let's talk about savings interest and tax. Because a lot of people think, "If I've got money in the bank, surely I don't have to pay tax on it?". Well it's not quite that simple.

You don't pay tax on the amount you've saved. But you can be taxed on the interest that money earns. Think of it as a salary that your savings are paying you each year. And if that income is more than a certain amount then you'll be taxed.

So, let's break this down into two groups: People who already pay tax (basic or higher-rate taxpayers), and people who earn a small amount that might not need to pay tax at all, and we'll come back to them later.

If You're Already Paying Tax

There's something called the Personal Savings Allowance (PSA). This is how much interest you can earn before the taxman takes a slice:

And this could change, but right now, if you're a basic-rate taxpayer (with a total taxable income up to £50,270), you can earn up to £1,000 in interest completely tax-free.

If you're a higher-rate taxpayer (with income from £50,271 up to £125,140), your allowance drops to £500.

And if you're an additional-rate taxpayer earning above £125,140, sorry, you don't get a Personal Savings Allowance. Every penny of interest is taxable.

A quick but important note for our readers in Scotland: while you have different income tax bands for your salary, your Personal Savings Allowance is actually based on these UK-wide bands, which can be a nice bonus for many!

So let's do an example. Right now, top easy-access savings accounts pay about 5% interest. So, to earn £1,000 of interest, you'd need to have around £20,000 in savings. For £500 of interest, that's £10,000.

So unless you've got more than that sitting in savings, it's likely you won't owe any tax on your interest.

How Do You Actually Pay the Tax?

If you already file a self-assessment tax return, you'll just include the interest in that. Easy.

If you don't file a tax return, you generally don't need to do anything proactively. Your bank reports the interest to HMRC for you. If you owe tax, HMRC will usually adjust your tax code to collect it automatically. This means they reduce your tax-free personal allowance, so a little more tax is taken from your pay or pension over the year. You might get a P800 letter at the end of the tax year to confirm this. But if your income from savings and investments is over £10,000, you must register for Self Assessment.

Want to see exactly how much tax you'll owe on your savings? Try our free UK savings tax calculator – it takes just 30 seconds and shows you what you'll keep after tax.

How Do You Avoid Paying Tax on Interest (Legally)?

This is where Cash ISAs come in. These are savings accounts that sit inside a tax-free wrapper. Any interest you earn in an ISA is yours, there's no tax due, and it doesn't count towards your Personal Savings Allowance.

You can put up to £20,000 per tax year into ISAs. And that allowance resets every April. And thanks to new rules, you can now open and pay into multiple ISAs of the same type in the same year, giving you more flexibility to chase the best rates.

So over time, if you consistently use that allowance, you could have £40k, £60k, £80k+ sitting in ISAs, completely shielded from tax.

Whether you go for an easy-access ISA or a fixed-rate, it's a really solid option for anyone with a decent chunk of savings. Check our live rates comparison table to see the latest Cash ISA rates available now.

Think of it this way:

• If you're a basic-rate taxpayer and go over your £1,000 allowance, 20% of your interest could go to tax.

• If you're a higher-rate taxpayer, that jumps to 40%.

• In a Cash ISA, you keep all of it.

What About Premium Bonds?

Another option worth knowing about is Premium Bonds.

You don't earn interest in the traditional way. Instead, there's a monthly prize draw, and your winnings are tax-free.

Now, it's crucial to understand the 'prize fund rate' - which is 3.60% from August 2025. This isn't a guaranteed interest rate. It's an average across everyone, skewed by the big prizes. With average luck, your return will likely be lower. The odds of any single £1 bond winning a prize are 22,000 to 1. - so while top savings accounts offer a guaranteed return, Premium Bonds offer a chance-based one.

We've written a detailed guide on whether Premium Bonds are worth it in 2025 if you want to dive deeper into how they compare to traditional savings accounts.

What If You're a Non-Taxpayer or on a Low Income?

This is where things get interesting, but a little more complex.

Everyone gets a £12,570 tax-free Personal Allowance for all their income. On top of this, there's a special 0% tax rate called the 'Starting Rate for Savings', which can cover up to an extra £5,000 of interest.

But here's the key part: this £5,000 allowance gets smaller for every pound of other income (like from a pension or part-time job) you earn above your £12,570 Personal Allowance. So, if your non-savings income is £13,570, your starting savings rate is reduced by £1,000.

Once all that is used up, you still have your £1,000 Personal Savings Allowance. For someone with no other income, this is how you can get up to £18,570 of savings interest completely tax-free (£12,570 + £5,000 + £1,000).

Final Thoughts

If you've got savings, it's really worth understanding this stuff. Most people won't pay tax on their savings, especially if they don't have huge balances or they're using ISAs.

But once you're creeping over the allowance, you want to make sure you're not needlessly handing money over to HMRC.

So, to recap: use your Personal Savings Allowance, take advantage of Cash ISAs, consider Premium Bonds if you've got extra cash, and if you're on a low income, understand how the starting rate for savings might apply to you.

And if you're thinking about where to put your savings, check out our UK & EU savings rates comparison table to find the best accounts available today. You can also use our savings tax calculator to work out exactly how much tax you'll pay on different account types.