tax, installment, or prepayment, plus interest at the modified adjusted rate per month, or fraction thereof, established pursuant to Section 6591.5, from the date on which the tax or the amount of tax required to be collected became due and payable to the state until the date of payment.

return, a penalty of 10 percent of the amount of

tax, exclusive of previously remitted installments, shall be added thereto on account of the delinquency.

adding this subdivision shall apply to any return or payment that becomes due on or after November 30, 2024. This section does not apply to any fee imposed pursuant to Section 25205.5 or 25205.5.2 of the Health and Safety Code for any return or payment that becomes due on or after November 30, 2024.