Electronic invoicing
FEL electronic invoicing from your point of sale
The problem isn't issuing the invoice. It's having to key the same sale twice, into two different systems, to get one.
- The invoice is issued as the sale closes, with nothing re-keyed
- Credit notes and voids from the same screen
- The document goes out over WhatsApp immediately
Included in every plan, from GTQ 670.00 per location per month
What FEL is and how it works
FEL is the SAT's online electronic invoicing regime (Factura Electrónica en Línea). On paper, the check happens afterwards: you issue the document and the tax authority learns about it later. Under FEL it happens first — each document is signed electronically and registered at the moment it is issued, and until that registration happens the document does not exist as an invoice.
Three parties are involved and it is worth knowing what each does. Your point of sale assembles the document from the sale and sends it. A SAT-authorised certifier validates it and assigns its authorisation number. The SAT receives that record. The authorisation does not come from your system: it comes from the certifier, and that is true of any point of sale, this one included.
Day to day the change is smaller than people expect. The cashier takes payment exactly as before. What changes is what comes out at the end: instead of an internal receipt, a document with an authorisation number — and that number is what makes it a valid invoice. What also changes is how an error is corrected: a registered document is not torn up, it is voided or adjusted with a credit note, and both are recorded.
To start you need four things: the company NIT, your tax regime settled with your accountant, a contract with a SAT-authorised certifier, and your establishment details exactly as registered with the SAT. The certifier's credentials are configured once.
What FEL invoicing includes
Issued at the point of sale
The invoice is generated as you take payment, with the customer's details already loaded.
Credit notes and voids
Correct or void a document from the same system, with a record of it.
Delivery by WhatsApp or email
The customer gets their document without waiting for a printer.
Reporting for your accountant
Export the period's issued documents in the format they ask for.
How it works
You take the sale as usual
Ring up the products, apply discounts, and choose the payment method.
See the checkout screenYou choose who it's invoiced to
Final consumer, or the tax details of the customer or the company paying.
Ask about recipient tax detailsIt's issued and delivered
FlowPOS issues the document through a SAT-authorised certifier and sends it over WhatsApp.
See what the customer receives
Questions about FEL invoicing
FlowPOS integrates with SAT-authorised certifiers. As the sale closes, the document is sent for certification and the receipt becomes available to print or send over WhatsApp. Yes. FlowPOS handles the different tax regimes and document types that apply in Guatemala. Tell us your regime and we'll confirm the configuration before you commit. Yes. You can void documents and issue credit notes from the same system, within the windows the regulations allow. We configure the certifier with you during implementation. Message us and we'll explain what applies given your situation and document volume. FlowPOS plans don't charge per document issued. If your certifier has its own package structure, we review that with you during implementation. Issuing electronic documents requires a connection. The sale is still recorded in the system, and during implementation we define a contingency plan with you based on how your business operates. Four things: the company NIT, your tax regime settled with your accountant, a contract with a SAT-authorised certifier, and your establishment details exactly as registered with the SAT. If they do not match the register, the certifier rejects the documents. No. Under FEL the electronic document is the invoice and the printed ticket is a courtesy copy. Many businesses still print because customers expect it, but paper no longer has to travel with the sale. If the sale should never have happened, you void it. If the sale happened and the amount changed — a partial return, a discount agreed afterwards — you issue a credit note. Both are documents and both are recorded. Yes. The electronic document can be sent by WhatsApp or email as the sale closes, which is how most customers in Guatemala prefer to receive it.
Stop keying the same sale twice
We'll walk you through issuing a complete FEL invoice end to end, with your own products and prices.