If you think the value of your dwelling is within 10% of an ATED threshold, you should complete a pre-return banding check form to ask HMRC to carry out checks on your property details and valuation, to see if you need to pay ATED.
Before you start
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You’ll need to fill in the form fully before you can print it. You can’t save a partly completed form, so HMRC recommend you gather all your information together before you begin to fill it in.