As a self-employed person that pays both Class 2 and Class 4 contributions, am I exempt from paying CSI or do my contributions cover CSI?

If you have paid both classes of national insurance contributions, this indicates that you were a qualified person as a self employed worker. The work needs to have been genuine and effective however (see this guidance, p 13). If this is the case, the CSI requirement does not apply to you.

Note: this question, like other FAQs on Comprehensive Sickness Insurance (CSI), relates to applications for British citizenship, when considering whether periods of past residence were lawful.

CSI is not required to apply for pre-settled or settled status under the EU Settlement Scheme. Also, once pre-settled or settled status is granted, you are lawfully resident, and you do not need CSI.