Go to "Make an invoice" and fill out the form with your invoice data
Select digital certificate to sign the invoice
Send the invoice to your client, and ready!
A facturae is an electronic version of invoice in paper, legal in Spain. It has all necesary information in a invoice and it is signed to certificate the content and issuer.
From 10/30/2010 companies will have to send invoice in facturae format to spanish public administration (central goverment, autonomic goverments, municipalities and provincials).To big companies this mandatory begin 07/30/2009. This means that if you sell something to administration, you should make a facturae if you want to collect.
If your company is small, surely you will not have the ability to generate a facturae. HazteUnaFacturae.com facturae allows you to generate an invoice technically correct, digitally signed, ready to deliver to his client. All you need are five minutes.

You can validate the correction of the electronic invoices issued by hazteunafacturae.com on the page of the MITYC