Helena has owned two holiday flats in the old town of Cádiz since spring 2024. She markets them through Airbnb and Booking, which deduct their commissions every quarter: about €380 the first and about €520 the second. Nobody ever told her about Modelo 349. In September 2026, a friend who had just signed up with a gestoría (one of the tax agencies Spaniards use for their paperwork) forwarded her an email from it about «platform commissions and the ROI», and Helena began to suspect that she had gone two and a half years without filing something. She was right, and her case is the most frequent example of a forgotten 349 that we see.
Why Helena had to file the 349
Modelo 349 is the recapitulative statement of intra-community transactions. It settles no tax: it tells the tax authorities about transactions carried out with businesses in other EU member states, identifying them by their VAT number. That information is cross-checked with what those other businesses declare in their own countries, through the VIES system, the EU's VAT number exchange.
Airbnb invoices European hosts from Ireland and Booking from the Netherlands. Their commissions are services supplied to a business (Helena is one for VAT purposes, because she runs a holiday letting activity) established in Spain. Those services are located in Spain and are declared on the 349 under the code for intra-community acquisitions of services. How it works with each platform is explained in the guide on the 349 and Airbnb commissions.
What filing an information return late costs
Because the 349 carries no tax, the article 27 recargo (the surcharge for filing a tax return late unprompted) does not apply to it. What exists instead is the offence in article 198 of the Ley General Tributaria, Spain's General Tax Act, for not filing information returns on time: €20 for each item or set of items relating to the same person, with a minimum of €300 and a maximum of €20,000. If it is filed late without a prior request from the tax office, the fine and its limits are halved: €10 per item, with a minimum of €150.
Helena's figures, if everything had to be filed
- Quarters with commissions: from the second quarter of 2024 to the second of 2026, nine.
- Items per return: two, one per platform. At €10 per item that would be €20, below the minimum.
- Fine per return filed without a request: the reduced minimum, €150.
- Total for the nine quarters: 9 × 150 = €1,350.
- With the 40 % reduction for prompt payment: €810.
If, instead of her filing, a request arrives first, the minimum per return goes back to €300: €2,700 for the nine quarters, or €1,620 with prompt payment. The difference between moving and waiting is, on the 349 alone, more than €800.
The 349 is rarely forgotten on its own
What almost nobody tells you is that the 349 is the cheap part of the problem. If Helena did not know she had to report the commissions on the 349, she did not declare them on Modelo 303 either, the quarterly VAT return, where she had to charge herself Spanish VAT on those commissions. And since her holiday letting includes no hotel services and is exempt, that VAT cannot be deducted: it is a cost. The VAT on future commissions will only become deductible once her stays are taxed at 10 %, a change left without a date when Congress voted the decree down, with July 2028 as the outer limit under the EU directive.
| Item per quarter | Amount | Nine quarters |
|---|---|---|
| Commissions from the two platforms | €900 | €8,100 |
| Spanish VAT self-charged (21 %), not deductible | €189 | €1,701 |
| 349 fine without a request, with prompt payment | €90 | €810 |
| Article 27 surcharge on the VAT | From 1 % to 15 % depending on age | Calculated quarter by quarter |
There is one nuance to look at before doing any final sums: how each platform invoiced. When a host does not provide an intra-community VAT number, some platforms charge VAT on their invoice as if the host were a consumer. If that happened, the treatment of those periods changes, and exactly what has to be filed and regularised is decided with the platform's invoices in front of you, not with a general rule. Nor do we assume that the tax authorities will demand every period before registration in the ROI: it is looked into.
If you are in Helena's position, the form for the internationally self-employed helps us see how many quarters there are, which invoices you have and where it is best to start.
To operate as an intra-community business you have to be in the ROI, the register of intra-community operators, which is applied for with Modelo 036 (the 037 disappeared on 3 February 2025). Filing the late 349s without first applying for registration, or without giving the number to the platforms so that they invoice correctly from now on, is regularising the past while leaving the problem open for the future. The sensible order is: registration, number given to the platforms, the late quarters, and from then on, every quarter on time.
Rebuilding two years of commissions
The practical work in a late 349 is not filling in the form, which is simple, but knowing what to put in it. Both platforms make available to the host, in their dashboard, the invoices or commission statements for each period, with the name of the company invoicing and its VAT number. That is where the three pieces of data each line asks for come from: the operator, its number and the amount for the quarter.
- Download every commission invoice since the first month of activity.
- Check on each one which company is invoicing and from which country, because it has changed at some point on some platforms.
- Check whether the invoice carries another country's VAT or none at all, because the treatment depends on it.
- Group them by calendar quarter according to the invoice date, and total them by platform.
- Cross-check the totals against the payments in the bank account, to spot missing invoices.
With that table done, the regularisation of the 349 and of the 303 come from the same numbers, and there is no longer any way for them to contradict each other. It is the part that takes longest and the one that prevents most mistakes.
If, besides the platforms, there are other European suppliers (a laundry based in another country, a booking management program invoiced from Ireland or the Netherlands), they go into the same table and the same 349s. It often happens that, while rebuilding, a supplier turns up that nobody remembered.
Helena's calendar from now on
With her volume, Helena will file the 349 every quarter, within the same periods as the 303: from 1 to 20 April, July and October, and until 30 January for the fourth quarter. Only in the quarters in which there are transactions: unlike the 303, the 349 is not filed as a nil return. Registration in the ROI and the VIES number are explained in registering in the ROI and the VIES, and the VAT treatment of her activity in the 303 for holiday lets.
Helena started with registration. While it came through, she gathered the commission invoices from both platforms since 2024, which turned out to be easier to download than she had feared. With that in front of her, the regularisation stopped being a ghost and became a list of nine quarters, each with its figure.