International tax advisory covers every situation in which a client's tax residence, source of income or wealth crosses more than one jurisdiction. It is Avenor's broadest practice area and the one that connects with practically every other.

What we do exactly

  • Tax residence analysis: determination of residence in Spain, Italy or Mexico in accordance with domestic law and the "tie-breaker" criteria of the applicable DTTs.
  • Application of Double Taxation Treaties (DTTs): Spain has DTTs with more than 100 countries, Italy with a similar number, and Mexico with a broad network. We apply the relevant DTTs to each specific situation.
  • Special regimes: the Spanish Beckham Law, the Italian Regime degli impatriati and forfettario, the Italian and Spanish Patent Box, the Mexican IMMEX, and sector-specific Mexican tax incentives.
  • Tax planning for transactions: structuring of investments, international expansion, corporate reorganisations with a cross-border dimension.
  • International information reporting: Form 720 and 721 in Spain, FATCA, CRS, DAC 8.
  • Mutual Agreement Procedures (MAP) and resolution of double taxation disputes.

Special regimes we work with most

ES · 01

Beckham Law (Art. 93 LIRPF)

Taxation at 24% on Spanish-source income up to €600,000 for 6 years. Applicable to relocated employees, company directors and, since 2023, digital nomads and entrepreneurs with an ENISA report.

IT · 02

Regime degli impatriati

50%-60% reduction of the IRPEF taxable base for qualified workers transferring their residence to Italy, with a duration of 5 years, extendable under specific conditions.

IT · 03

Regime forfettario

Italian substitute regime for self-employed professionals with annual turnover below €85,000. Taxation at 15% (5% in the first 5 years for new activities).

IT · 04

Patent Box

Tax deduction on income derived from the exploitation of qualifying intangibles (patents, software, know-how). Applicable in both Italy and Spain, with different regulations.

MX · 05

IMMEX

Mexican programme promoting the manufacturing, maquiladora and export services industry. Allows temporary imports without payment of VAT or duties.

MX · 06

Sector-specific tax incentives

Simplified Trust Regime (RESICO), R&D deductions, incentives for border zones and the northern and southern strips, among others.

How we apply a DTT in practice

Applying a Double Taxation Treaty is not automatic. It requires case-by-case analysis:

  1. Determine the taxpayer's tax residence in each State under domestic law.
  2. If there is dual residence, apply the treaty's "tie-breaker" rules (centre of vital interests, permanent home, nationality, mutual agreement procedure).
  3. Classify the income or wealth element according to the treaty's definitions.
  4. Identify each State's taxing power over that income or wealth.
  5. Apply the methods to eliminate double taxation (exemption or credit).
  6. Meet the formal requirements: residence certificates, information returns, withholdings.
Anti-Beckham clauses in treaties

Some DTTs include clauses that limit the treaty's application to taxpayers under special regimes such as the Spanish Beckham Law. Before opting for a special regime, it is essential to review the DTT with the country of origin to avoid unexpected losses of treaty protection.

Quick comparison: Beckham Spain vs Impatriati Italy

Spain · Beckham

Flat 24% rate up to €600,000

Only Spanish-source income is taxed (with exceptions). Duration: 6 years. Form 720 does not apply. Exempt from Wealth Tax on foreign assets.

Italy · Impatriati

50%-60% exemption of the IRPEF base

Applies to employment income and similar. Duration: 5 years, extendable. Stricter professional qualification requirements following the 2024 reform.