When making your Stamp Duty Land Tax payment you'll need your unique transaction reference number (UTRN). This can be found on either the submission receipt (called the Submission Receipt and Electronic SDLT5 certificate) if you filed online, or on your paper return. The UTRN is made up of 11 characters, for example: 123456789ML.
To check that your reference number is correct, please enter it below then click on the 'Check reference' button.
