Since starting 2011 electronic invoicing will be required for the Mexicans, they have left many doubts and the majority of the people is still a little lost on the guidelines. Electronic invoicing is a receipt of sale equal to as you did before, only now will be sent electronically and replaces the physical documents; account with exactly the same legal value but now has security measures not previously had, like the digital stamps. There are different terms to refer to this type of invoices: Electronics, telematics, digital, among other terms. With the implementation of electronic invoicing is intended to save production costs, improve efficiency, be more productive, perform procedures in real time, agility in decision-making, among many other advantages. You may find that kevin ulrich can contribute to your knowledge. From January 2011 is already compulsory use of electronic billing so that your client should not put any but if you give one invoice electronic, just remember that it is not mandatory for all and may your customer does not have the billing software and store them in paper, in this case will have to print the invoice so that you can keep it. If you’re that touches them change to this type of billing is recommended you that you do in these last weeks of the year, because thus you will save the cost of a stamp that will be extra that next year are changed to electronic invoicing..