458.0.4. Where a person fails to pay an amount referred to in section 458.0.1 within the specified time, the person shall pay, on the amount not paid, interest at the rate prescribed under section 28 of the Act respecting the Ministère du Revenu (chapter M-31) and incur a penalty of 6% per year, compounded daily, for the period beginning on the first day following the day on or before which the amount was required to be paid and ending on the earlier of the day the amount is paid and the day on or before which the tax on account of which the instalment was payable is required to be remitted.
For the purposes of this section, the interest and penalty to be paid are added at the end of each day to the amount to be paid.