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Quaderno Connect overview

Quaderno Connect is a powerful API and set of tools that can be used to add tax management and invoicing features to business models like marketplaces and software platforms.

For instance, by using Connect, marketplaces can add sales tax calculations to their checkout forms and record their merchants' sales and refunds to provide them compliant invoices, reports, and notifications regarding new tax obligations worldwide.


Quaderno Connect is only available with the Business plan or higher.

Common questions

  • Can we use Quaderno Connect if we are registered as a marketplace facilitator in the US? Yes! Quaderno Connect is an excellent fit for marketplace facilitators. It provides tax management and invoicing capabilities to your customers, adding great value to your business.

  • Can we use Quaderno Connect if we are a merchant of record (MoR)? No. As a MoR, you handle all the invoicing, not your customers. You can use Quaderno without Connect to issue your invoices.

  • Can we use payment processors like PayPal or Stripe with Quaderno Connect? You can use any payment processor with Quaderno Connect. All we need you to do is to send the sales and returns data through the Transaction API, as explained in the guide Integrate Connect.

  • How much does Connect cost? There are no platform specific fees for Standard accounts. Custom accounts' cost is based on monthly active accounts and API calls, with a minimum amount of €2 per active account. Contact us to know more and discuss your needs.