Partial payment or failure to pay taxes or contributions within the legal time limit will result in the application of :
1° A surcharge of 5% on the amount of sums for which payment has been deferred or evaded in whole or in part. This surcharge is not due when the late filing of the return is accompanied by full payment of the tax;
2° Late payment interest at a rate of 0.40% per month on the amount of duty not paid by the due date.