Entepreneur's Relief if turning permanent

[Maslins]

I think you missed this :

I think it was a formal HMRC response to a historic consultation. I spent 30secs trying to Google for the original source and couldn't find it.

Anyway, sounds like the OP found their answer elsewhere.

[cojak]

Hope you are going to keep your IR35 insurances running for a full year after you go perm!

I'm running mine for 6 years...