La. Stat. tit. 33 § 4047
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
Upon any delinquency on the part of the property owner in paying the assessment on or before the date of maturity, the property holder's assessment shall bear additional interest at the rate of one per cent per month as a penalty, which interest shall be collectible in the same manner as is provided for in the collection of the unpaid portion of the special assessment.
La. R.S. § 33:4047