ATCUD: What changed regarding document issuance?

Since the ATCUD came into effect, every issuer must report to the Tax Authority the sequences it intends to use, for each type of fiscally relevant document and processing method, in order to obtain the validation code that makes up each document's ATCUD. 🔄

1How it was and how it is

Since the ATCUD came into effect, in order to issue documents, each issuer must report, for each type of fiscally relevant document and processing method, the sequences it intends to use, in order to obtain a validation code that makes up the respective ATCUD.

The Tax Authority provides two different mechanisms for reporting sequences and obtaining the validation code: manually, via the Finance Portal, or through software (an invoicing application), using a webservice.

2In InvoiceXpress

When a sequence is registered, communication for each document type is done via webservice. This way, each document type is assigned a unique sequence validation code.

💬 Frequently asked questions

❓ What changed regarding document issuance?

Each issuer must report to the Tax Authority the sequences it intends to use, for each type of fiscally relevant document and processing method, in order to obtain the validation code that makes up the ATCUD.

❓ Do I have to report the sequences manually to the Tax Authority?

The Tax Authority offers two mechanisms: manually, via the Finance Portal, or through software using a webservice. In InvoiceXpress, when a sequence is registered, the communication is done via webservice.

❓ What does InvoiceXpress do when I register a sequence?

Communication is done via webservice for each document type, so each document type is assigned a unique sequence validation code.