Is it compulsory to submit Form 80? No. But if you dont...
@gregormendel (1H ago| Updated 1H ago)Is it compulsory to submit Form 80?
No. But if you dont submit, it's possible that CO may or may not ask later. So you can either submit preemptively, OR wait to see if CO requests it.
You can look at recent s56 requests data here to examine the trends and patterns.