Blog: Freelance & method | Amory Dumoulin
Modelo 303 Spainquarterly VAT Spain
Modelo 303: Spanish Quarterly VAT — My First Three Filings
Practical guide to Spain's Modelo 303 quarterly VAT return: deadlines, calculations, common mistakes and what your gestor checks.
Modelo 036 Spainregister self-employed Spain
Modelo 036/037: Your Birth Certificate as Autónomo in Spain
Clear guide to Spain's Modelo 036/037: choose the right census form, register your activity and avoid common autónomo tax mistakes.
freelancemethod
Why working alone forces me to understand whole problems
Discover why my status as a freelance digital director forces me to analyze and optimize every link in your online ecosystem, from code to SEO.
StrategyDesign
The Art of Premium Digital Strategy
A concise look at how premium digital strategy blends performance, design systems, and clear execution.