Connecting your POS terminal to your cash register: everything you need to know

Mollie is an authorised European provider operating fully in Italy. For this reason, your terminals will not appear automatically in the Italian tax registry for electronic payment tools, and you will need to enter the details manually. Don’t worry: it’s a simple, quick process and fully compliant with the regulations.

Here’s how to do it:

Step 1: Gather your Mollie details

Before accessing the portal, make sure you have the following information ready:

• Italian or foreign acquirer: Foreign

• Acquirer tax code: 815839091B01

• Acquirer name: Mollie BV

• Merchant agreement contract number: your Mollie organisation ID. You can find it in the top-right corner of your monthly invoice, or in your dashboard by clicking the profile icon in the top-left corner (it’s the number starting with #)

• Terminal ID: specific to each device. To find it, log in to your Mollie Dashboard → Point of sale → click on the terminal → Terminal information

Use the following depending on your terminal type:

• PAX terminals and TAP: use the Serial number

• Tap to Pay (Mollie app or Tap app): use the Terminal ID

Step 2: Access the Invoices and Receipts portal

Go to ivaservizi.agenziaentrate.gov.it/portale/ and log in using SPID, CIE, CNS, or Entratel/Fisconline credentials. You can complete the procedure yourself or ask your accountant to do it on your behalf.

Step 3: Add the terminal and link it to the electronic cash register

• In the side menu, select Device linking – POS → Manage connections

• Click Add POS, then Add acquirer

• Enter all the information collected in Step 1

• Select your cash register and click Connect

Done. Your Mollie terminal is now linked to your cash register.

👉 For more detailed instructions, we recommend consulting the full Help Centre article and the official operational guide on linking POS terminals to cash registers published by the Italian Revenue Agency.