No CGT on property sale and not within Self Assessment - do I need to report?

I am a UK resident and have sold a UK residential property for 300k. The gain is covered by my 6k annual exemption. I do not complete a tax return as I am employed. I understand that a CGT return is not required as there is no tax to pay, but do I need to register for Self Assessment and report this on a tax return? Or write to HMRC? Or do I not need to do anything?

Hi,

No, you dont need to report this if there is no tax to pay and you dont need to register for Self Assessment.

Thank you.