QUALIFIED CHARTERED ACCOUNTANT
613 Points
Joined November 2016
In first situation you can issue credit note.
But in second situation, a credit note can be issued only till 30th September following the end of the financial year in which supply related to such credit note was made. As per circular 72/46/2018 dated 26.10.2018, there is no time limit to issue credit note but only for effecting ‘tax adjustment’. So credit note can be issued without tax adjustment.