Spanish VAT Return Guide: Modelo 303 and IVA

When do you need to file a Spanish VAT return?

You need to file Spanish VAT returns when your business is registered, or should be registered, for IVA in Spain. The obligation usually follows the transaction, not the nationality of the company.

Typical triggers include:

• holding stock in Spain, including third-party logistics and Amazon FBA;

• local sales of goods in Spain;

• intra-Community acquisitions or supplies involving a Spanish VAT number;

• importing into Spain followed by local or EU sales;

• services taxable in Spain;

• supplies of goods with installation or assembly in Spain;

• B2C distance sales into Spain once the EUR 10,000 EU-wide threshold is exceeded, unless OSS is correctly used.

Modelo 303: the main Spanish IVA return

Modelo 303 is the periodic VAT self-assessment return. It calculates the Spanish VAT collected on sales, the deductible VAT paid on purchases, and the final balance to pay, carry forward or reclaim.

The return usually covers:

• output IVA split by VAT rate, mainly 21%, 10% and 4%;

• input IVA on deductible business purchases;

• exempt, export or specific transactions;

• the final VAT result for the period.

For most foreign businesses, Modelo 303 becomes operational only after Spanish VAT registration and issuance of a Spanish NIF/VAT number. Filing without a clean registration position creates reconciliation issues with customers, marketplaces and the AEAT.

Modelo 390 and Modelo 349: annual summary and EU transactions

Modelo 390 is the annual Spanish VAT summary return. It reconciles the calendar year with the periodic Modelo 303 returns and is generally filed in January, subject to exemptions where the AEAT already receives enough information, especially under SII or specific reporting regimes.

Modelo 349 reports intra-Community transactions. It covers EU supplies of goods and services, and it is not the same return as Modelo 303.

The key Modelo 349 frequency rule is often misquoted:

• monthly filing is the default;

• quarterly filing is possible only if the reportable intra-Community transactions in the current quarter and in each of the previous four quarters do not exceed EUR 50,000;

• annual filing is not the rule to apply for this analysis.

Spanish VAT deadlines

Spanish VAT deadlines are calendar-driven and strict. For quarterly Modelo 303 filers, the standard deadlines are:

Monthly Modelo 303 returns are filed within the first 30 calendar days of the following month. The January monthly return is filed by the end of February.

Monthly filing applies when the previous year's volume of operations exceeds EUR 6,010,121.04. It can also apply to REDEME taxpayers, VAT groups and other cases covered by Spanish VAT regulations.

SII: Spain's near real-time VAT reporting system

SII, or Suministro Inmediato de Informacion, is Spain's electronic system for transmitting VAT invoice ledger data to the AEAT. It is mandatory for taxpayers on monthly VAT settlement periods such as large companies, REDEME taxpayers and VAT groups, and optional for others.

Under SII, invoice records are generally sent within 4 natural days. Saturdays, Sundays and Spanish national public holidays are excluded from the calculation. In specific cases where the invoice is issued by the recipient or a third party, an 8-day rule may apply.

SII changes the compliance rhythm. Modelo 303 still exists, but invoice data must be controlled almost in real time. SII taxpayers may benefit from certain simplifications, including exemptions from Modelo 390 or Modelo 347 where conditions are met.

Late filing penalties and Spanish VAT risks

Spanish penalties depend on whether you regularise voluntarily before the AEAT contacts you. With VAT due and no prior request from the administration, Article 27 applies: the surcharge is 1% plus an additional 1% for each full month of delay. After 12 months, the surcharge becomes 15%, and late-payment interest applies from the 13th month.

If the AEAT intervenes first, Article 191 can apply for unpaid VAT. The sanction starts at 50% for a minor infringement, rises to 50-100% for serious cases, and can reach 100-150% for very serious or fraudulent cases.

Late filings with no tax loss, such as nil or credit returns, fall under Article 198. The fixed penalty is generally EUR 200, reduced to EUR 100 for spontaneous late filing without prior request. Informative returns can be penalised at EUR 20 per missing data item or data set, with a minimum of EUR 300 and a maximum of EUR 20,000, generally reduced by half for voluntary late filing.

Fiscal representative in Spain

A fiscal representative in Spain is generally required for non-EU businesses when Spanish rules require local representation for VAT registration and compliance. The representative may carry joint liability in certain cases, so the appointment is not a simple address formality.

For EU-established companies, a fiscal representative is not required as a general rule. It is still often the practical route when documents need sworn translations, AEAT notices arrive in Spanish, or the business has stock, marketplace flows, Modelo 349 reporting and SII exposure to coordinate.

Spain vs France: the differences that matter

Spanish VAT compliance is more form-driven than French VAT compliance. The recurring return is Modelo 303, the annual summary is Modelo 390, intra-Community flows are reported through Modelo 349, and large or monthly taxpayers may be subject to SII.

The practical differences for a French or international business are:

• Spain uses three main VAT rates: 21%, 10% and 4%;

• Spanish stock creates a local VAT registration issue even where OSS is used for distance sales;

• Modelo 349 combines intra-Community goods and services reporting in one Spanish recapitulative return;

• SII can make invoice reporting almost daily;

• AEAT penalties distinguish sharply between voluntary correction and correction after administrative action.

Spanish VAT return compliance is manageable when registration, transaction mapping, return frequency and calendar controls are aligned from the start. The expensive cases usually come from treating Spain as a simple extension of an OSS or French VAT setup. See our guide on the EC Sales List and Intrastat in Spain.