If you are self-employed or run a business in Barcelona or anywhere else in Catalonia and buy or sell goods or services to other countries in the European Union, sooner or later you will come across Form 349. It is one of the information returns that raises the most questions, because it does not involve paying anything to the tax authorities, but overlooking it can result in financial penalties that are by no means negligible.
As we know it inside out because we handle it for many of our clients, at Taxmind we want to explain the process and the ins and outs of Form 349 in a clear and comprehensive guide. If you have any questions or queries, please leave a comment at the end of the article and we’ll reply as soon as possible.
We explain what Form 349 is
Form 349 is the recapitulative statement of intra-Community transactions. It is an informative return: no money is paid or refunded through it. Its sole purpose is to inform the Tax Authority of the sales of goods and the provision or acquisition of services that you have carried out with companies or professionals from other Member States of the European Union.
All this information is fed into the VIES system (VAT Information Exchange System), a database shared across the EU that enables tax authorities to cross-check data. When a company in Barcelona declares that it has sold goods to a customer in France, the French tax authorities expect to see that this customer has, in turn, declared the corresponding purchase. This ensures that intra-Community VAT, which operates under special rules, is applied correctly at both ends of the transaction.
Why does it exist? VAT on intra-Community transactions
In transactions between businesses in different EU countries, as a general rule, VAT is not charged by the seller but is self-assessed by the buyer in their own country (the reverse charge mechanism). In other words, an intra-Community supply of goods is exempt from VAT at source, and it is the buyer who declares that VAT in their own country. As these invoices do not show Spanish VAT, the tax authorities need another way of finding out what is happening: that method is precisely Form 349.
We recently discussed intra-Community VAT on our blog.
Who is required to submit Form 349?
Businesses and professionals — both self-employed individuals and companies (partnerships) — who have carried out intra-Community transactions subject to this obligation are required to submit it. In practice, we must submit Form 349 if, during the relevant period, we have carried out any of the following transactions with a trader from another EU country:
- Supplies of goods to customers in another Member State (exempt from VAT).
- Purchases of goods from suppliers in another Member State.
- Supplies of services to businesses or professionals in another Member State.
- Purchases of services from businesses or professionals in another Member State.
- Triangular transactions and transfers of goods under a consignment arrangement (call-off stock).
Please note: If we have not carried out any intra-Community transactions in a given period, we do not need to submit Form 349 for that period. Unlike other forms, there is no ‘zero Form 349’: it is only submitted when there are transactions to report.
Prerequisite: registration with the ROI and holding a valid VAT registration number (NIF-IVA)
To carry out intra-Community transactions and submit Form 349, we must be registered with the Register of Intra-Community Operators (ROI) and hold a valid VAT registration number, which consists of the tax identification number (NIF) preceded by the prefix ‘ES’. Registration is requested by ticking the relevant box on Form 036 (census declaration). Once granted, our VAT registration number will appear in the VIES register and we will be able to issue and receive VAT-exempt invoices with the rest of the EU.
Please bear in mind that without this step, our transactions will not be considered intra-Community for VAT purposes.
Advice for businesses in Barcelona and Catalonia
You will need to apply for registration with the ROI before issuing your first invoice to a European customer. The AEAT may take a few weeks to process your application, and until you appear as a valid operator in the VIES, the EU customer may be obliged to charge you VAT at their country’s rate.
To which authority is Form 349 submitted?
Form 349 is submitted to the State Tax Administration Agency (AEAT), that is, the national tax authorities. It is important to clarify this as it causes confusion in Catalonia: although the Agència Tributària de Catalunya (ATC) exists, which manages both devolved and own taxes (such as the ITP-AJD or Inheritance Tax), VAT and its informative returns — including Form 349 — fall exclusively within the remit of the AEAT.
Taxpayers in Barcelona and the surrounding province fall under the jurisdiction of the AEAT’s Special Delegation in Catalonia, but, in practice, all submissions are made electronically via the Electronic Tax Office, without the need to visit any office.
Which transactions are reported: the codes on Form 349
Each transaction is identified on the form by a single-letter code, which indicates the type of transaction. Knowing these codes helps avoid the most common mistake: misclassifying a transaction. These are all the current codes:
| Code | Type of transaction |
|---|---|
| A | Intra-Community acquisitions of goods |
| E | Intra-Community supplies of goods |
| T | Supplies in the context of triangular transactions |
| S | Intra-Community supplies of services |
| I | Intra-Community acquisitions of services |
| M | Intra-Community supplies following an exempt import |
| H | Intra-Community supplies following an exempt import carried out by the importer themselves |
| R | Transfer of goods under consignment sale arrangements (call-off stock) |
| D | Returns of goods from another Member State under consignment sales arrangements |
| C | Changes to the recipient customer in consignment sales agreements |
For each customer or supplier, their VAT registration number (with the country prefix), their name or company name, the transaction code and the total amount for the period must be declared. If the same customer is involved in several types of transaction, a separate line must be entered for each transaction code.
Frequency and submission deadlines
Form 349 has two filing frequencies: monthly or quarterly. Which one applies to you depends on the volume of your intra-Community transactions. These are the criteria and deadlines in force in 2026:
| Period | When it applies | Submission deadline |
|---|---|---|
| Quarterly | General scheme: where the value of intra-Community supplies of goods and services does not exceed €50,000 (excluding VAT), either in the quarter in question or in any of the four preceding quarters. | Q1: 1 to 20 April · Q2: 1 to 20 July · Q3: 1 to 20 October · Q4: 1 to 30 January |
| Monthly | Where intra-Community supplies of goods and services exceed €50,000 in a given month (or where that threshold was exceeded in any of the four preceding quarters). | From the 1st to the 20th of the month following the month being reported. |
In summary: most self-employed individuals and small businesses submit Form 349 quarterly. If your intra-Community turnover increases and exceeds €50,000 in a single month, you automatically switch to monthly filing. When a deadline falls on a Saturday, Sunday or public holiday, it is extended to the next working day.
Common mistake: “Annual option”
It is a very common misconception, found on many websites, that Form 349 can be submitted annually. That option existed until 2020, but is no longer in force: today, the AEAT only allows for monthly and quarterly filing. Nor is there an ‘annual summary’ of Form 349 equivalent to VAT Form 390.
How to submit Form 349 step by step
Submission is exclusively electronic, via the AEAT’s Electronic Portal. You will need one of the following identification methods: a digital certificate, an electronic ID card or, if you are an individual, Cl@ve. These are the steps:
- Gather the information for the period: a list of EU customers and suppliers with their VAT registration numbers, the transaction code for each one and the total amount for each type of transaction.
- Check the VAT registration numbers in the VIES: you must validate each number in the VIES register before submitting your return. An incorrect or de-registered VAT registration number is one of the most common reasons for receiving a request for further information.
- Log in to the AEAT’s online portal and authenticate yourself using your digital certificate, electronic ID card (DNIe) or Cl@ve. Search for ‘Form 349’ and choose whether to submit it via the online form or as a file.
- Fill in the identifying details: financial year, period (month or quarter) and your details as the declarant.
- Enter the transactions: add one line for each customer/supplier and reference number, stating their VAT registration number, name, reference number and amount. If you have a large number of transactions, you can import a file generated by your accounting software.
- Check and validate: the system checks for any formal errors. You must correct any errors before continuing.
- Sign and submit. Download and save the receipt with the Secure Verification Code (CSV). This serves as proof that the return has been submitted on time.
Common examples where Form 349 must be submitted
These are real and common cases within the business community of Barcelona and Catalonia that we regularly handle each year at Taxmind:
A fashion e-commerce business in Barcelona selling to France and Portugal
An online shop that ships clothing to business customers (B2B) or distributors in other EU countries is carrying out intra-Community supplies of goods: code E.
Freelance developer in the 22@ district who invoices a German start-up
A self-employed person in the technology sector providing software services to a company in Berlin declares an intra-Community supply of services: code S.
A Catalan marketing agency that buys advertising from Google Ireland or Meta
As it receives services from a company established in Ireland, the agency carries out an intra-Community acquisition of services: code I.
Machinery importer purchasing from an Italian supplier
A company in Vallès that purchases goods from a manufacturer in Italy declares an intra-Community acquisition of goods: code A.
A distributor that buys in Germany and resells in France without the goods passing through Spain
This is a triangular transaction: code T.
In all these cases, even if the invoice does not show Spanish VAT, the transaction must be reported on Form 349 for the relevant period, as well as on VAT Form 303.
Common errors when submitting Form 349
As with any tax return, great care must be taken with the information declared and the manner in which it is submitted. Mistakes and errors are common and can lead to enquiries or penalties. To avoid them, bear the following in mind:
- VAT registration number not validated in the VIES. Reporting transactions with a customer whose VAT registration number is not active in the VIES is the number one cause of requests for further information. Always validate the number before filing.
- Incorrectly assigning the transaction code. Confusing the provision of services (S) with a purchase (I), or a supply of goods (E) with a triangular transaction (T), throws off the data reconciliation with the other country’s tax authorities.
- Failure to declare purchases of digital services. Many self-employed individuals forget that advertising on Google/Meta or SaaS tools contracted from EU companies must also be declared on Form 349 (code I).
- Discrepancies between Form 349 and Form 303. The intra-Community amounts declared on Form 349 must be consistent with those recorded on Form 303 for the same period.
- Submitting a ‘zero’ return out of habit. If there were no intra-Community transactions during the period, no return is submitted. It is not necessary to submit a blank Form 349.
- Forgetting to switch from quarterly to monthly filing. Once the threshold of €50,000 is exceeded in a single month, the obligation switches to monthly filing immediately; continuing to file quarterly constitutes a late submission.
Penalties for failing to submit Form 349 or submitting it incorrectly
Although Form 349 does not involve paying tax, it is a formal obligation, and failure to comply is penalised in accordance with the General Tax Law (LGT). As there is no tax due, no late filing surcharges apply, but penalties may still be imposed.
For example, failure to file or late filing (Article 198 of the LGT) results in a fine of €20 for each piece of data or set of data relating to the same person or entity, with a minimum of €300 and a maximum of €20,000. In the case of voluntary late submission, without prior request, the penalty is reduced by half, i.e. €10 per item of data, with a minimum of €150 and a maximum of €10,000.
Furthermore, submitting a return that is incorrect, incomplete or contains false information (Article 199 of the LGT) may result in a proportional fine of up to 2 per cent of the value of the undeclared or incorrectly declared transactions, with a minimum of €500.
Furthermore, the general reductions for compliance and early payment provided for in the LGT may be applied to the resulting penalty, which significantly reduce the final amount. The practical conclusion is clear: filing on time, even if there are only a few transactions, always pays off, and if you are late, taking the initiative to file voluntarily with the tax authorities halves the penalty.
What if I make a mistake after filing?
If we spot an error after filing, we can submit a supplementary return (to add any omitted transactions) or a replacement return (to completely replace the previous one). Doing so voluntarily, before the tax authorities require it, halves any potential penalty.
Relationship with other forms: 303, 390, 347, SII and Intrastat
Form 349 does not replace other obligations. The same intra-Community transactions are also reported on Form 303 (quarterly VAT self-assessment) and in the annual summary on Form 390.
It should not be confused with Form 347 (annual return of transactions with third parties), which covers transactions with domestic suppliers and customers exceeding €3,005.06, not intra-Community transactions.
Those registered for the Immediate Information Supply (SII) scheme keep their VAT records in real time, but the SII does not exempt them from submitting Form 349. Nor should it be confused with Intrastat, which is a statistical declaration on the physical movement of goods between EU countries, mandatory only when certain volume thresholds are exceeded. Form 349 is a tax return and reports amounts; Intrastat is a statistical return and reports flows of goods.
The future of Form 349: VAT in the Digital Age (ViDA)
The European Union has approved the ‘VAT in the Digital Age’ (ViDA) package, which over the coming years will gradually introduce electronic invoicing and a digital reporting system operating in near real time for intra-Community transactions. It is envisaged that this new digital reporting system will progressively replace summary returns such as Form 349 towards the end of the decade.
In the meantime, Form 349 remains fully in force and is mandatory under the terms described in this guide. It is advisable to keep an eye on the implementation timetables, as they will change the way these transactions are reported.
Frequently Asked Questions about Form 349
To summarise all that has been covered – which is quite a lot – we have condensed the most important points into this series of frequently asked questions about Form 349:
☑️ Does Form 349 involve paying anything to the tax authorities?
No. It is a purely informative return: no money is paid or refunded. It simply informs the AEAT of your intra-Community transactions for VAT control purposes.
☑️ If I haven’t carried out any transactions with the EU in a particular quarter, do I still have to submit it?
No. Unlike other forms, Form 349 is only submitted when there are transactions to declare. There is no ‘zero return’.
☑️ How often do I have to submit Form 349?
It depends on your turnover. The standard frequency for the self-employed and SMEs is quarterly. If your transactions exceed €50,000 in a month, you must file monthly.
☑️ Can Form 349 be submitted annually?
No. The option to file annually was available until 2020, but it is no longer in force. Currently, there are only two filing frequencies: monthly and quarterly. There is also no annual summary.
☑️ Do I need to do anything before I can submit it?
Yes: you must be registered with the Register of Intra-Community Operators (ROI) and have a valid VAT registration number, which is applied for using Form 036.
☑️ Is it submitted to the national tax authority or the Catalan tax authority?
To the AEAT (Spanish Tax Agency), always online. The Catalan Tax Agency is not involved in VAT or Form 349.
☑️ What happens if I submit it after the deadline?
You may be fined €20 per item of information (minimum €300). If you submit it voluntarily before the tax authorities request it, the fine is halved (€10 per item of information, minimum €150).
☑️ How does it differ from Form 347?
Form 347 covers transactions with domestic third parties exceeding €3,005.06 per year; Form 349 covers exclusively intra-Community transactions (with other EU countries). They are separate returns and do not overlap.
☑️ How does it differ from Intrastat?
Form 349 is a tax return for monetary amounts; Intrastat is a statistical declaration of the physical movement of goods, which is mandatory only when certain thresholds are exceeded.
☑️ How do I correct an error after submitting the return?
By submitting a supplementary return (to add what was omitted) or a replacement return (to replace the previous one). Doing so voluntarily reduces the likelihood of penalties.
Conclusions
We already know that Form 349 is an informative return; in other words, no money is paid or refunded through it, but rather it serves as a reliable means of notifying the Tax Authority of sales and purchases of goods and the provision or acquisition of services carried out with companies or professionals from other Member States of the European Union.
Form 349 is straightforward once you are clear on the key details, deadlines and registration with the ROI, but an error in a VAT registration number or an incorrectly assigned code can trigger a demand for payment. At Taxmind, we help self-employed individuals and businesses in Barcelona and Catalonia to manage their intra-Community transactions correctly, from registration with the ROI to the timely submission of all their VAT returns. If you have any queries about your specific situation, please contact us and we’ll go through it with you.
