Climate Change Response Act Article 55
If carbon fees required to be paid in accordance with Article 28 (1) are intentionally underreported or any information that is related to the calculation of carbon fee is not reported, the central competent authority may calculate the carbon fees at double the carbon fee rate based on the audited emission.If an entity evades the carbon fees through the methods stated in the preceding paragraph, the central competent authority shall not only calculate and collect any evaded carbon fees based on the calculation in Article 60, but also retroactively calculate the payable amount up to the preceding five years. However, for an entity that has been subject to carbon fees for less than five years, the payable amount shall be calculated from the initial fee charge dateFor the backdated fee in the preceding paragraph, interest shall be accrued daily, from the day following the payment deadline notified by the central competent authority or the day when the fee evasion began, to the date of payment, based on the fixed annual interest rate for a one-year time deposit with the Directorate General of the Postal Remittances and Savings Bank as of the date of payment.