Interest rates explained

AER is the rate of interest you earn from us on any balance above £0. It's short for Annual Equivalent Rate and shows the interest rate for a year, taking into account any interest payments made to you during the year. The AER enables you to easily compare the interest rates on accounts from different banks and building societies where interest may be calculated or paid at different frequencies.

Gross interest is the rate used to calculate your monthly interest payments where no tax is deducted. UK bank interest is paid gross. The interest you receive is subject to taxation.

Chase interest rates

Effective from 28 March 2022.

Chase current account

AER        0.00%

Gross     0.00%

Chase saver account 

AER        1.50%

Gross     1.49%

Round-up account

AER        5.00%

Gross     4.89%

How we pay interest

We calculate your interest daily and pay it monthly. With a 1% AER interest rate that means, if you put in £1000 on your first day, you'd earn £10 in interest over the year. If nothing changes (including the interest rate), you'd have £1010 at the end of the year.

Interest and tax

Interest you earn with a bank is taxable in the UK. We don't deduct tax from your interest before it's paid to you, as the amount of tax you pay depends on how much you earn.

You'll need to tell HMRC yourself if you need to pay tax on your interest. If you're a UK taxpayer, you might get the UK Personal Savings Allowance, which basically lets you earn some interest before tax. How much your tax-free amount is depends on your tax rate. If you pay the basic rate of income tax, you can earn £1,000 in interest before tax. Higher rate taxpayers have £500 before tax and additional rate taxpayers get no UK Personal Savings Allowance. You can find out more on

If you are also tax resident in another country, interest income may be taxable in that other country.  

This note is general information for customers on taxation.  It is not tax advice and must not be treated as advice.  All customers remain responsible for their own tax affairs.

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