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In an increasingly globalised economy, companies are increasingly turning to outsourcing their international financial processes. The primary focus here is on efficiency gains and the associated cost savings. But it is precisely in the area of tax and compliance outsourcing that the more targeted use of internal resources, risk minimisation and access to specialised expertise are coming to the fore. However, in addition to the opportunities, these international projects also bring with them a multitude of challenges. Recognising and proactively managing these is crucial to the success of the project.

Spain is stepping up its efforts to digitise business transactions by implementing mandatory e-invoicing for companies and professionals. As part of our ongoing series “E-invoicing in the EU”, in this article we focus on the latest developments in Spain, highlighting the key aspects of Spain’s e-invoicing system, its scope and practical insights from Grant Thornton Spain.

Poland will be among the first countries to implement mandatory e-invoicing for B2B transactions, starting in February 2026. As part of our series “E-invoicing in the EU” we will cover Poland’s experiences with the progression of this new regulation, changes to expect for businesses operating in Poland, and highlight how the Polish Grant Thornton firm approaches the implementation challenge.

Italy was the first country in the EU to implement mandatory e-invoicing as of January 2019 in the B2B and B2C segment. As part of our series “E-invoicing in the EU” we highlight the growing relevance of e-invoicing by examining Italy’s successful implementation and offer valuable insights for businesses that are looking to navigate this change.

The EU is pushing the modernisation of the VAT system with the planned introduction of unionwide electronic invoicing (“e-invoices”). But in practical implementation, there are great differences between the EU Member States. In this article, we explain the main challenges that global businesses face and point out how you can safely navigate through the different coun-tries’ various plans for implementation.