Tax filings
Forms 303, 130, 349 and the rest of the quarterly and annual filings, step by step.
How to Fill in Form 303 Step by Step: VAT Guide for Freelancers
Learn how to complete Spain's quarterly VAT Form 303 step by step, calculate key boxes, and prepare your accounting for the VeriFactu rollout.
Form 036 vs 037: Tax Registration, Modification, and Deregistration in Spain
Learn the difference between Form 036 and Form 037, filing deadlines with the AEAT, and how to align your Spanish tax census data with VeriFactu.
Modelo 390: Complete Guide to the Annual VAT Summary in Spain
Learn how to file Modelo 390 accurately, discover who is exempt, and ensure your annual VAT totals match before VeriFactu arrives.
Prepare Your Modelo 303 Stress-Free: Essential Guide for Freelancers and SMEs (2026)
Discover how to prepare the quarterly Modelo 303 VAT declaration for freelancers and SMEs in Spain in 2026. Learn about deadlines, key steps, and the upcoming e-invoicing and VeriFactu system.
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