Notification to Pay your Self Assessment tax bill Through your tax code

How and when will HMRC notify me that they will collect outstanding tax bill through my tax code? All I received is a statement with the amount outstanding for Apr 22 - Apr 23 after completing the self assessment. The statement says payment due 31 Jan. Option was selected in the self assessment and all criteria was met.

Hi Grant Stark,
If showing as direct payment but you meet the criteria to collected through your 2024/25 tax code you will need to contact HMRC to review and update.
Details of how to contact HMRChere:
Self Assessment: general enquiries
Thank you.