Trusted Partner Service
Tax Advice in Spain
Moving to Spain changes your tax position — from the Beckham Law to Form 720 and dual taxation, the rules are easy to get wrong. Through our trusted partner GS Legal Consulting, led by founding partner Federico González Seijo (20+ years' experience), you get tailor-made tax advice for foreigners with ties to Spain, with particular expertise for US citizens.
-
Cross-border specialists
The first firm dedicated to US citizens in Spain and Spaniards in the US — they live and breathe dual-taxation questions.
-
Plan before you move
Pre-arrival tax estimates and Beckham Law planning so you understand your position before you relocate — not after.
-
Advice & filing
Full compliance handled end to end — from strategy down to preparing and filing your Spanish tax returns.
Tax services they handle
Comprehensive tax advisory and filing for foreign taxpayers with economic or personal ties to Spain.
Preparation and filing of all Spanish tax returns, including Form 100.
Application of the special tax regime for impatriates moving to Spain.
Overseas asset declarations (720) and wealth tax filings (Form 714).
Corporate income tax returns and planning, plus non-resident obligations.
Strategic planning for estates and transfers, including the solidarity (large-fortune) tax.
Direct representation before the Spanish tax authorities, including litigation.
How it works
A tailor-made service for individuals and small to medium-sized businesses.
-
Book a consultation
Premium consultations run from €200–€350 — book a session to review your situation.
-
Assess your position
They map your residency status, income and assets across Spain and abroad, including pre-arrival estimates.
-
Plan & optimise
Advice on the Beckham Law, double-taxation relief and inheritance planning tailored to your case.
-
File & comply
They prepare and submit your returns and keep you compliant year after year.
About GS Legal Consulting
Founded in 2016 as Spanish Lawyer NYC, GS Legal Consulting was the first firm dedicated to helping US citizens living in Spain and Spanish nationals in the US with Spanish law. Founding partner Federico González Seijo holds a JD from ICADE, an LL.M. in Business Law from IE Business School and an LL.M. in US Law from Fordham (New York), with more than 20 years of experience. Beyond tax, the firm advises on real estate, commercial law, private wealth and international relocation.
Led by a founder with two decades of cross-border legal practice.
The first firm focused on the US–Spain legal corridor.
Madrid and Málaga, serving clients nationwide by technological means.
GS Legal Consulting is one of our trusted partners. Some partner links are affiliate or mutual-referral arrangements; we only recommend services we have experience with and believe add value to our clients.