Find out if you owe tax on your savings interest, and how much. Updates as you type.
How it's worked out
Interest inside an ISA is always tax-free and shouldn't be entered. Your allowances stack in this order: any unused Personal Allowance, the £5,000 starting-rate band (for lower earners), then your Personal Savings Allowance, only interest above all of those is taxed.
Tax on your savings interest
Your interest is fully covered by your allowances, no tax to pay.
You keep of interest.
You may need to report this
Banks report interest to HMRC. If you don't file Self Assessment, HMRC usually collects it by changing your tax code, but check you're not already filing for another reason.
Estimate only. Savings interest is taxed at UK rates even for Scottish taxpayers.