Downloading invoices from your tax portal: why doing it by hand is no longer worth it

Every month, the administrative manager of a structured business faces the same task: downloading invoices from the tax portal to reconcile flows, close the balance sheet, and prepare the documentation for the accountant. The tax portal of the Revenue Agency (AdE) is a valuable resource, but the manual download of documents quickly becomes a bottleneck when volumes grow or there is more than one VAT number to manage. In this article, we look at why the manual process has higher hidden costs than it appears, what operational obstacles are imposed by the AdE, and how an automated flow via API allows the CFO to transform a repetitive activity into a controlled process.

How invoices are downloaded today from the tax portal (and why it is a bottleneck)

The Tax Portal (Cassetto Fiscale) is the AdE's online service that allows taxpayers to securely view all data and documents related to their tax position.

To download invoices from the tax portal, you need to authenticate to the AdE portal using SPID, CIE, or CNS. Once logged in, the user accesses the "Consultazione" (Consultation) area, filters the period, identifies the documents, and exports them in PDF or XML. It is also possible to perform a bulk download of electronic invoices, but in this case, two operational limits come into play, significantly impacting finance processes.

Limits of manual download from the tax portal

The constraints imposed by the AdE: three requests per day and a 15-month window

The first constraint concerns the number of bulk XML download requests allowed by the portal: a maximum of three per day for each delegate. The second concerns the availability period: the generated packages remain downloadable for only fifteen months. For a CFO who needs to retrieve historical archives, manage multiple VAT numbers, or respond to audit requests, these two barriers translate into fragmented working times and the risk of documents no longer being available.

When volume becomes risk: errors, duplicates, and traceability

As volumes grow, manual downloads multiply the opportunities for error. Repeated logins, manually renamed files, invoices imported twice into the management software, documents downloaded but not archived: these are frequent problems in accounting firms and administrative departments managing multiple companies. Furthermore, the lack of a centralized log makes it difficult to demonstrate the traceability of the process in the event of an internal or external audit.

Pay attention, too, to compliance risks. A purchase invoice not downloaded in time is a potential discrepancy in tax returns, just as an unrenewed AdE password blocks the entire process for days. These are examples of cases where regulatory and operational risks grow silently.

The hidden costs in terms of time

The real cost of manual downloading is not the task itself, but everything it generates around it: man-hours diverted from analysis and forecasting, transcription errors, delays in monthly closes, and risk of penalties. In multi-company organizations or firms managing many VAT numbers, the cumulative impact is measured in person-days per month. And when the time-to-close depends on staff availability and the limits of the AdE portal, data for management always arrives late. Automating the flow means eliminating these variables and making internal deadlines predictable.

Automatic invoice retrieval: how things change with an API flow

How the automated flow works

Automatic invoice retrieval is based on a simple principle: instead of checking the portal every day, a scheduled flow is configured to retrieve available documents and make them immediately consumable by company systems. The sync of purchase invoices takes place periodically and is integrated into the existing workflow, whether it is an ERP, accounting software, or CRM. This is how accounting process automation stops being an aspiration and becomes infrastructure. At A-Cube, we have detailed how to automate the tax portal synchronization flow in an article dedicated to technical integration.

Purchase invoices synchronization and ERP

The value of automation is measured in downstream processes. When purchase invoices reach the ERP continuously, bank reconciliation is completed faster, the supplier payment schedule is updated without manual intervention, and the cash flow forecast becomes more reliable. Furthermore, the presence of a centralized audit trail simplifies the response to internal and external audits. For the CFO, it is the transition from fragmented document management to a controlled process, in which data reaches the systems on time and with the quality required for decisions.

How to download invoices from the tax portal with A-Cube's API

To bring this model into your company, we at A-Cube have developed the Bulk Download from Tax Portal API, a solution that automates the download of documents from the Revenue Agency portal securely and compliantly.

The access prerequisite is the Single Proxy (Delega Unica), in force since 8 December 2025. The Single Proxy is the only way to access tax portal documents in an automated way, because the AdE does not provide official APIs or automatic procedures for third parties. This is a manual step (to be completed only once for each VAT number), but it is the necessary prerequisite to delegate to A-Cube, as an AdE-accredited intermediary, the ongoing management of the flow. 

Once this is done, the process is completely automatic and tax compliance is guaranteed. Key features include:

1. automatic daily download of active and passive electronic invoices;

2. multi-format output (XML, PDF, JSON, CSV) ready for downstream systems;

3. unlimited linkable VAT numbers, useful for groups and multi-client firms;

4. retention of downloaded documents for up to 24 months, compared to the 15 months of the AdE portal;

5. automatic alerts on the expiration of AdE passwords, to be renewed every 90 days;

6. native integration with ERP, CRM, and accounting software.

For functional details, please refer to the dedicated page: the Bulk Download from Tax Portal API.

From manual activity to controlled process

Downloading invoices from the tax portal by hand is still possible, but the ratio between hours invested, operational risk, and data quality no longer plays in favor of those managing growing volumes. With an API that automates the download and integrates with business systems, the process becomes scheduled, traceable, and scalable across any scope of VAT numbers. To evaluate the solution on a real case or organize a custom demo, write to info@acubeapi.com.