Tax activation code for corp tax. Where does this send to?

Simple question, no guidance in the interface. What address does this activation code get sent to? If it's business correspondence address, second Q is where do I check what that is using the online portal, or anywhere. I want to make sure it's correct as I've recently moved. Many thanks

Hi bazzle,

The activation code for Corporation Tax is sent to the Companies Registered Office address.

Thank you.