Modelo 309: what it is and when a self-employed person files it

Modelo 309, what it is: the occasional VAT self-assessment

VAT is normally declared every quarter with the modelo 303. But some taxpayers, because of their scheme, do not file the 303 and nevertheless have to pay VAT at some point on a specific transaction. For them article 71.8 of the VAT Regulations (Royal Decree 1624/1992) provides for a "special non-periodic return and payment". That is the modelo 309, approved by Order HAC/3625/2003.

"Non-periodic" means it is only filed in the quarters in which one of those transactions occurs. If in a quarter you buy nothing from the EU and receive no reverse-charge services, you file nothing. And do not confuse this with article 71.7, which regulates something else: the annual VAT summary return (the modelo 390).

Who files modelo 309 and who does not

Article 71.8 of the Regulations and the first section of the Order list the cases. Those that can affect a self-employed person or an ordinary individual are these:

• Recargo de equivalencia (individual retailers or entities under the income attribution regime, art. 148 of the VAT Act): for intra-EU acquisitions of goods and for transactions where they are recipients under the reverse charge of article 84.Uno.2 of the VAT Act. Also for taxable, non-exempt supplies of real estate.
• Anyone who carries out only transactions without a right to deduct, for example an exempt activity under article 20 of the Act: for taxable intra-EU purchases of goods and for services received under the reverse charge.
• Special scheme for agriculture, livestock and fishing: for taxable intra-EU purchases, the reverse charge, and taxable, non-exempt supplies of real estate from their activity.
• Individuals and anyone who is not a business person who buys a new means of transport (car, motorbike, boat or aircraft) in another EU country.
• Legal persons not acting as business people, such as an association, for their taxable intra-EU purchases of goods.

There are also rarer cases: the individual who occasionally sells a new means of transport to another Member State (art. 71.8.1), the retailer under the surcharge scheme who claims back the amounts refunded to travellers (art. 71.8.6) and, according to the Order, auction awards, refunds under the agricultural scheme and unpaid debts. Watch out for two nuances. Under the agricultural scheme, for those with only exempt activities and for the non-business legal person, purchases of goods from the EU are not taxable as long as they did not reach 10,000 euros in the previous year and do not reach it in the current year, unless you opt to be taxed (art. 14 of the VAT Act). Under the recargo de equivalencia that threshold does not exist. And anyone who files the 303, whether under the general or the simplified scheme, does not use the 309: those transactions go in their 303.

Modelo 309 for the self-employed: the retailer under the surcharge scheme buying in Germany

This is the most typical case. A clothes shop run by an autónoma under the recargo de equivalencia does not file the 303: her VAT is collected by Spanish suppliers when they charge her the surcharge on each invoice (art. 154 of the VAT Act). But that same article makes clear that the scheme does not release her from self-assessing intra-EU acquisitions or the reverse charge.

Example. In August she buys clothes from a German wholesaler for 2,000 euros. Because she gave them her VAT number (she is in the ROI), the invoice arrives without German VAT. That does not mean there is no VAT: it accrues in Spain and she pays it. In the third-quarter 309 she declares:

• VAT at 21%: 420 euros.
• Recargo de equivalencia at 5.2%: 104 euros (the surcharge is required by art. 156 and the rate is set by art. 161).
• Total to pay: 524 euros, within the period of 1 to 20 October.

She cannot deduct any of that VAT: under the recargo de equivalencia, input VAT is not deductible (art. 154.Dos). That is why the VAT and the surcharge become part of the cost of the goods. If what she buys is not for resale, for example a counter, she pays the VAT but not the surcharge (art. 157).

Services from EU companies: when they go in the 309 and when in the 303

Buying advertising on an Irish platform or software from a Dutch company is a supply of services under the reverse charge: the invoice comes without VAT and you are the one who must self-assess it. Where you do so depends on your VAT scheme, not on your income tax scheme:

• Recargo de equivalencia. It goes in the 309, with VAT at 21% and no surcharge, because the surcharge only applies to acquisitions of goods (art. 156). A fee of 300 euros a quarter means 63 euros of VAT to pay.
• Exempt activity (for example an academy or a healthcare professional with exempt services). It goes in the 309, also at 21%, and is not deductible either.
• Módulos (estimación objetiva) with the simplified VAT scheme. Here is the usual confusion: anyone in módulos and in the simplified VAT scheme does file the 303, and article 123.Uno.B of the VAT Act requires them to add to it the VAT on intra-EU acquisitions and on the reverse charge. They do not use the 309. The same goes for the general scheme.

If you are registered for VAT, those taxable purchases of goods and services received from EU companies are also reported in the recapitulative return, the modelo 349. And if what worries you is the other direction, when you are the one invoicing abroad, the guide on invoicing foreign clients without VAT explains it.

Modelo 309 deadlines

The third section of Order HAC/3625/2003 sets the same calendar as the 303:

Deadlines falling on a Saturday or a non-working day move to the next working day; the exact dates for 2026 and 2027 are in the 2026-2027 tax calendar. There are two exceptions. For a new means of transport bought in the EU, the deadline is 30 days from the transaction and always before final registration: to register it, the copy of the 309 with the validated payment is required. And for awards in enforced-sale proceedings, one month from payment.

How to fill in the 309, in broad terms

The 309 is filed on the AEAT electronic office (the Spanish tax agency's online portal), where there is also a pre-filing form for those not required to use a certificate. According to the official instructions for the form, it has five blocks:

1. Identification of the taxpayer.
2. Accrual: the year and the period (1T, 2T, 3T or 4T). For new means of transport, "0A" is entered.
3. Tax status and taxable event: you tick your scheme (recargo de equivalencia, agricultural scheme, exempt only, non-business person) and the transaction that triggers the return. There is a box for "other cases".
4. Assessment: the taxable bases at the applicable rate, the VAT amount and, if you are under the recargo de equivalencia, the base and amount of the surcharge. The result is always an amount to pay.
5. Payment, at the time of filing.

Since nothing is deducted, the calculation is base times rate. The real work is not forgetting any invoice: keep EU suppliers' invoices separate and check at the end of each quarter whether any came without VAT.

What happens if you do not file the 309

The 309 is a self-assessment with payment, so not filing it means not paying VAT. If you regularise it yourself before the tax authority contacts you, you pay the surcharge under article 27 of the General Tax Act: 1% plus 1% for each full month of delay, and 15% with late-payment interest after 12 months. You can work it out with the surcharge calculator.

If the AEAT writes to you first, there is no longer a surcharge but a penalty, proportional to the amount not paid. The guide I missed a tax deadline explains how to act in each case. For a new car, moreover, without the validated 309 there is no registration.

Frequently asked questions

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