Forms 036 and 037: tax registration with the AEAT

What tax registration is

Before issuing the first invoice, self-employed professionals and companies must notify the AEAT of the start of activity. That step uses the census return: form 036 or its simplified version, form 037.

036 or 037: which to choose

Form 037 suits most resident self-employed workers with straightforward activity and standard taxation. Form 036 is mandatory for companies, non-residents, special VAT schemes, or intra-Community operations, among other cases.

A cheap mistake to avoid

A poorly filed registration triggers requests, surcharges, and even audits. We review your situation and file the right form from day one. Consult us before registering.