Late fee for late filing of details and returns :
Any registered taxable person who fails to furnish the details of outward or inward supplies required under section 37 or 38 returns required under section 39 or section 45 by the due date shall be liable to a late fee of rupees one hundred for every day during which such failure continues subject to a maximum of amount of rupees five thousand – section 47(1) of CGST Act.
Any registered taxable person who fails to furnish the return required under section 44 (annual return) by the due date shall be liable to a late fee of rupees one hundred for every day during which such failure continues subject to a maximum of an amount calculated at a quarter per cent of his turnover in the State or Union Territory [0.25% of turnover in State or Union Territory- it can be huge amount] – section 47(2) of CGST Act.