Free invoicing software for computer engineers, programers and graphic designers.

Our invoice templates create a unique invoice reference number automatically to comply with legal requirements. Your legal information and the one from your client will appear automatically once you have registered your customer in the program. Remember to modify the invoice date in case you are issuing the invoice in a different day from the one the service took place. Add the due date and terms of payment too.

Describe the different services provided as difference concepts and the hours spent working on each one of them. The programmer invoice template that you can see above is an example of an invoice that uses the hourly rate system to calculate the total net amount. Visit the following link to see an example of and invoice billed by project.

The program will calculate the total automatically. Add the percentage of taxes if required.

Si eres autónomo profesional, sólo debes facturar con IRPF (retención del 15%; sólo 7% para nuevos autónomos), en caso de que el cliente sea empresa o autónomo. Ejemplo: profesional dado de alta en el Grupo 763: “Programadores y analistas de informática” de los epígrafes del IAE de Actividades Profesionales.

Si estuvieras dado de alta como autónomo en actividades empresariales, no debes realizar retención de IRPF en tus facturas, aunque tu cliente sea una empresa o autónomo.

El modelo de factura de informático que puedes ver más arriba, es un ejemplo de un autónomo profesional dado de alta en el Grupo 763 que factura a una empresa. Por lo tanto, hay retención de IRPF.

In order to add additional information, like available payment methods and bank account number, just select it on "Notes on the invoice".

To create a new note, click on "Manage note information", write a title for the new note, write the text that should appear in the invoice and click on "Insert":

Contasimple has multiple invoice templates with different designs. If you don’t want the quantity column to appear in your invoice, just choose some template called "Services". If you would like the quantity column to appear to add the number of hours worked, choose any template but "Services" ones.

If you would like to add a detailed description of each concept, just click on "Show advanced edition". A new text field will appear below each concept:

You have two options: whether to apply a discount rate for a specific customer, or apply a discount rate only for some invoice concepts.

When you create a customer, you can set a discount rate for them to apply to all concepts of your invoices. The subtotal of the invoice net amount will decrease accordingly:

If you wish to apply a discount rate in one or some of the concepts of your invoice, just add the number of the percentage in the "% Discount" column. The subtotal of the net amount will decrease proportionally: