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October 31, 2030
Due date for filing of return of income for the previous assessment year if the assessee (not having any international or specified domestic transaction) is (a) corporate-assessee or (b) non-corporate assessee (whose books of account are required to be audited) or (c) partner of a firm whose accounts are required to be audited or the spouse of such partner if the provisions of section 5A (Portuguese Civil Code) applies