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What is Form 303?
Form 303 is the quarterly self-assessment for Value Added Tax (VAT) in Spain. It is used to declare and, where applicable, pay the output VAT and input VAT for the quarter.
It is filed by business owners, professionals, and individuals engaged in economic activity subject to VAT under the general or a special regime.
Filing deadlines are quarterly (Q1, Q2, Q3, and Q4) — check the exact dates on the tax calendar.
When should you use this form?
Use this document if:
- You're a freelancer or company with activity subject to VAT
- You settle VAT each quarter (general regime)
- You apply a special regime (equivalence surcharge, simplified, etc.)
- You have intra-community transactions or exports
- You're requesting a VAT refund for the last quarter
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Form 303 VAT: quarterly self-assessment
Form 303 is the quarterly self-assessment for Value Added Tax (VAT). It is filed quarterly by business owners and professionals in Spain to declare the output VAT charged on their sales and to deduct the input VAT paid on their purchases.
Our editor lets you complete Form 303 with all the required sections: identification, accrual, output VAT by rate, deductible VAT, intra-community transactions, special regimes, and the final result. Generate the PDF instantly for your records or for electronic filing.
Remember the deadlines: the 1st to the 20th of April, July, and October, and the 1st to the 30th of January for the last quarter. Filing is done electronically through the AEAT's online portal with a digital certificate or Cl@ve PIN.
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