Opt-in and Opt-out: Need advice still on my first contract (I won't renew after end)

[BlasterBates]

Where there is no definitive proof the general consensus from the experts is it makes no difference to IR35.

https://www.contractorcalculator.co....n_opt_out.aspx

employment status is determined on a case-by-case basis, a limited company contractor accepting on paper that they are controlled by the client and wish to be covered by the regulations is sending a pretty negative message to HMRC about their employment status. Control by the client is a key factor in determining the employment status of a contractor, and can be part of a package of evidence that puts a contractor inside IR35.