If you test positive, your self-isolation period includes the day your symptoms started (or the day you had the test, if you did not have symptoms) and the next 10 full days.
You may need to self-isolate for longer if you get symptoms while self-isolating or your symptoms do not go away.
Read more about how long to self-isolate.
Can I mix with my household or kitchen group?
If you have symptoms you need to self-isolate and stay away from other people as much as possible.