there shall be paid by the exempt organization $20 for each day during which such failure continues. The maximum penalty under this subparagraph on failures with respect to any 1 return shall not exceed the lesser of $10,000 or 5 percent of the gross receipts of the organization for the year. In the case of an organization having gross receipts exceeding $1,000,000 for any year, with respect to the return required under
section 6033(a)(1) or
section 6012(a)(6) for such year, in applying the first sentence of this subparagraph, the amount of the penalty for each day during which a failure continues shall be $100 in lieu of the amount otherwise specified, and, in lieu of applying the second sentence of this subparagraph, the maximum penalty under this subparagraph shall not exceed $50,000.