payment in arrear

a transfer of something of value to compensate for goods or services that is made after the receipt of such goods or services (Dic)

In other languages:

• ħlas b'lura [MT] - trasferiment ta' xi ħaġa ta' valur għal oġġetti jew servizzi li jsir wara ma' tircievi l-oġġetti jew servizzi
• pagamento in arretrato [IT]