Globalization has opened up endless opportunities for Spanish companies looking to expand into international markets. However, e-invoicing to foreign clients can be quite a challenge. Even more so if you are unaware of the tax regulations you must comply with or if you don’t have an efficient system. In that case, this article is perfect. In the following lines, we will tell you everything you need to know about how to invoice foreign clients and we’ll show you why and how tools like easyap simplify the process for you.
If you want to issue an invoice to a foreign company, you must follow certain steps. First, you need to collect the client’s details (such as the name or company name, address, and tax identification number) and then issue the invoice using the e-invoicing system. You must always indicate the foreign currency and mark the operation as an export. Absolutely check all data and numbering to avoid including anything incorrect.
What does international invoicing entail?
First and foremost, international invoicing means issuing legal documents that support transactions of goods or services to clients in other countries, according to local and international regulations. However, this process presents differences in VAT management, adaptations to international invoice formats, and, in many cases, the use of different currencies.
Therefore, to comply fiscally, it is necessary to adhere to both the regulations in force in Spain and those of the destination country. In our legal system, there are two main regulations that outline the legal framework for these operations:
- VAT Law (Law 37/1992, articles 69 et seq.)
- Invoicing Regulation (included in the Royal Decree 1619/2012).
Can all Spanish companies invoice foreign clients?
In turn, another common question regarding how to invoice foreigners is whether any organization can do it. The answer is clear:yes, any company legally constituted in Spain can invoice international clients.
However, to do so, it is essential to meet three requirements:
- Have an intra-community NIF. Companies invoicing clients within the European Union must apply for this number through the register of intra-community operators.
- Comply with the Register of Intra-Community Operators (ROI). The ROI ensures the legality of transactions within the European scope.
- Have systems adapted for international invoicing. Invoicing abroad requires tools that manage currencies, specific formats, and the correct VAT calculation.
It should be noted that both the procedure to obtain the intra-community NIF and understanding what the ROI establishes are carried out at the Tax Agency (AEAT). For the third point, you can always rely on easyap. We will explain it later.
How to issue an invoice to a foreign company?
With all the above clarified, it’s time to learn how to issue an invoice to a foreign client. This initiates the international invoicing process, which consists of a step-by-step guide, although there are some differences depending on whether the foreign client belongs to an EU country or is non-EU:
1- Gather client information
- EU Clients. Verify their intra-community NIF in the VIES system.
- Non-EU Clients. Ensure that their tax data is valid according to their jurisdiction.
2- Determine VAT treatment
- Intra-community operations. If both companies have an intra-community NIF, VAT is not applied (it is self-assessed at the destination).
- Non-EU operations. Generally, these operations are exempt from VAT, but they may be subject to customs duties or local taxes in the receiving country. Therefore, verify this aspect.
3- Create the invoice
Just as invoices in Spain must contain certain billing information by law, with foreign clients, they must also include the following:
- Complete details of both parties (issuing company and client).
- Tax identification number (NIF).
- Detailed description of the goods or services involved in the transaction.
- Currency used, exchange rate (if applicable), and a breakdown of taxes.
- Explicit mention of the applicable regulations, such as “Intra-community operation exempt according to Law 37/1992, article 25”.
4- Send the invoice
Finally, it’s time for submission, either through traditional or electronic means. However, the use of electronic invoicing software is becoming increasingly common, both here and worldwide. This method ensures traceability and regulatory compliance. Not only that, but in many countries like Spain it is already mandatory by law (or will be soon)
Should I charge VAT to a foreign client?
Also, and although we mentioned it before, it is important to know whether operations with foreign parties incur VAT or not. The tax treatment depends on the destination and, again, differs if it is within or outside the EU:
- Within the European Union. The transaction is exempt from VAT if both parties have an intra-community NIF. If the client does not have one, Spanish VAT applies.
- Outside the European Union. Exports are exempt from VAT according to Spanish regulations. However, customs duties and local taxes may apply in the client’s country.
Why is it so important to correctly manage invoicing for foreign parties?
What has been proven is that technology in this field is also a strategic ally. In fact, having an efficient system for your electronic invoicing helps you comply with regulations, which offers advantages such as these:
- Guaranteed legal compliance.You avoid penalties for VAT management errors or for non-compliance with international laws.
- Improved customer relationships.Clarity and accuracy in invoices build trust and foster loyalty among international clients.
- Optimization of financial processes.Automating invoicing allows you to dedicate more time and resources to activities of higher strategic value.
- Access to new markets.Having a system that manages multiple currencies and regulations facilitates your entry into foreign markets.
Common challenges when invoicing abroad
As you’ll understand, invoicing foreign clients presents difficulties and risks. At easyap, we know this from our experience with companies worldwide. Therefore, we would say there are common challenges when invoicing services rendered in Spain to a foreign company. Primarily:
- Errors in VAT management.Incorrectly applying or not applying VAT can lead to various penalties.
- Lack of knowledge of local regulations.Each country has its own specific requirements regarding invoice format and content.
- Language or currency issues.Issuing invoices in languages the client doesn’t understand or without considering the current exchange rate often leads to operational problems.
The 8 benefits of easyap for simplifying international invoicing
In this scenario,an advanced solution like those we design at easyap is a great solution. Our systems are developed for companies seeking efficient and secure management of their international operations. Furthermore, we provide benefits as compelling as these eight:
1. Guaranteed tax compliance
At easyap we take into account the regulations of the VAT Law and the Invoicing Regulation. Therefore, invoices comply with legislation, both in Spain and abroad.
2. Advanced Currency Management
You can issue your invoices in any currency, perform automatic conversions to euros and adjust exchange rates according to the market.
3. VAT Automation
Our software automatically calculates whether VAT should be applied or not, depending on the client’s location and the type of operation.
4. Adaptation to International Regulations
The system includes specific invoicing formats for both the EU and non-EU countries. This way, you run fewer legal risks.
5. Intuitive Interface and ERP Integration
Ours is an intuitive and easy-to-use software. Moreover, it integrates seamlessly with all types of business management systems.
6. Audit and Traceability
The easyap solution provides you with a detailed history of all invoices you issue. A significant advantage for audits.
7. Fewer Human Errors
Automation avoids common errors, such as incomplete data or incorrect tax calculations.
8. Specialized Support
We offer you personalized assistance to help you resolve any incident in real time.
Knowing how to issue an invoice to a foreign company is important. Ultimately, with us, companies simplify the management of invoicing foreign clients in Spain and strengthen their presence in global markets. Contact Us and discover how easyap optimizes this process and ensures your success abroad.

