amount duemeans the principal sum which should have been paid within the contractual or statutory period of payment, including the applicable taxes, duties, levies or charges specified in the invoice or the equivalent request for payment;
commercial transactionsmeans transactions between undertakings or between undertakings and public authorities which lead to the delivery of goods or the provision of services for remuneration;
enforceable titlemeans any decision, judgment or order for payment issued by a court or other competent authority, including those that are provisionally enforceable, whether for immediate payment or payment by instalments, which permits the creditor to have his claim against the debtor collected by means of forced execution.
interest for late paymentmeans statutory interest for late payment or interest at a rate agreed upon between undertakings, subject to Article 7;
late paymentmeans payment not made within the contractual or statutory period of payment and where the conditions laid down in Article 3(1) or Article 4(1) are satisfied;
public authoritymeans any contracting authority, as defined in point (a) of Article 2(1) of Directive 2004/17/EC and in Article 1(9) of Directive 2004/18/EC, regardless of the subject or value of the contract;
reference ratemeans either of the following:
retention of titlemeans the contractual agreement according to which the seller retains title to the goods in question until the price has been paid in full;
statutory interest for late paymentmeans simple interest for late payment at a rate which is equal to the sum of the reference rate and at least eight percentage points;
undertakingmeans any organisation, other than a public authority, acting in the course of its independent economic or professional activity, even where that activity is carried out by a single person;