Interest on ISA accounts is paid tax-free. Interest is paid gross i.e. without tax being taken off on all our other savings accounts.
AER stands for Annual Equivalent Rate and shows you what the interest rate would be if interest was paid and added each year. This will enable you to compare more easily the return you can expect from your savings over time.
We are a member of the Financial Ombudsman Service.
If you are unclear what something means, our Savings glossary can help.