FOR 2020 Covid the following applies:

https://camposolresidents.es/car-tax-viewable-and-payable-online/

This below is pre-Covid:

Payment of Car tax is the responsibility of the registered owner of the vehicle on the 1st of January each year, notice and invoice for Car tax is distributed by post in April, the due date being June 20th, the Region of Murcia collect the tax and do offer a scheme combining Car tax with Council tax on property (IBI) which can then be paid over 12 monthly payments, this option is offered by post in January or by enquiring at the Hacienda Office in Mazarrón.

To pay Car tax in a one off payment, take the invoice into any of the banks listed on the invoice where payment will be receipted (there may be specified days a particular bank deals with tax payments).

If you have not received an invoice, a duplicate can be collected at the Hacienda Office (address details below), or online on the following link:-

Agencia Tributaria

To obtain a printable copy, click on the “Tributo” box dropdown arrow, then click on “I. VEHICULOS TRACCION MECHANICA” the year 2018 is already entered, in the “Poblacion” box click the dropdown arrow then click on “MAZARRON” then enter the owners NIE number in the “nif/cif” box, lastly enter the car registration number in the “Matrícula” box, then click the “Enviar” button, this will bring up a copy of the invoice, if problems are encountered printing from this, download or save the document, which can then be printed and as above, payment can be made at any of the banks listed.

Payment can be made after the 20th of June but penalties will apply and a new copy invoice showing the penalty amount may be required by the collecting bank.

Consejería de Hacienda office is situated Calle del Pino 5 Mazarron.  You have to make a prior appointment in Covid times – see:

https://cita.carm.es/citaprevia/atrm/index.html?fbclid=IwAR1KxzoYe8wMlG4BHCx4YbinUUX6Z0Re1hE8Y2naF2rZes6oj477K0Uv3e0#!/es/home?uuid=2ac0-8de5f-fd4c-299a3