Spain vs Portugal, Ireland and the Netherlands: tax comparison for holdings and subsidiaries (2026)

No serious CFO assesses Spain in isolation. When deciding where to locate a European holding company or an operating subsidiary with regional reach, Spain competes against Portugal, Ireland and the Netherlands, and the decision is rarely won on the headline corporate income tax rate. What matters is the participation exemption regime on dividends and capital gains, the treaty network, the effective withholding on outbound flows, the real substance requirements, the inbound expatriate regime for executives and, in 2026, the added friction from Pillar 2 and ATAD 3.

This guide is aimed at CFOs, tax directors and M&A leads who are comparing European jurisdictions for an intermediate holding structure, locating the operating parent of a regional subsidiary, or relocating the tax centre of a group. It covers the 2026 regimes of the four jurisdictions, the use cases where each one has a genuine edge, and the mistakes that are still being made in structures that assume pure tax arbitrage still works.

TL;DR

• Best jurisdiction for a pure European holding with a LatAm portfolio: Spain (ETVE). Broad treaty network, 95% participation exemption on dividends and capital gains, 0% IRNR withholding on EU outbound flows under the Parent-Subsidiary Directive, and substance achievable with realistic local staffing.
• Best jurisdiction for a LatAm mining/energy holding or for highly complex cases requiring rulings: the Netherlands. Historic regulatory stability, the ability to obtain pre-rulings with the Dutch tax authority (Belastingdienst), a dense treaty network and sophisticated treatment of hybrid instruments.
• Best jurisdiction for an IP holding and EU SaaS with in-house R&D: Ireland. 12.5% trading rate, Knowledge Development Box at 6.25%, tech ecosystem and effective management relatively easy to substantiate.
• Best jurisdiction for an Iberian-LatAm regional HQ with real operating base: Spain or Portugal, depending on volume and profile. Spain wins on treaties, ETVE and the Régimen Beckham. Portugal wins on labour cost, IFICI for qualified executives and operational simplicity for mid-sized groups.
• Pillar 2 changes the rules: for groups with consolidated turnover above EUR 750 million, no effective rate drops below 15%. The decision shifts from “minimize the rate” to “minimize friction and maximize useful substance”.

Comparative summary (2026)

Spain

Corporate income tax rate in 2026: 25% standard rate, 23% for microenterprises with turnover below EUR 1 million, 15% for the first two financial years with positive taxable base for innovative start-ups (Law 28/2022). The minimum tax (cuota mínima) still applies: 15% effective minimum rate on adjusted taxable base for entities with turnover at or above EUR 20 million, under art. 30 bis LIS.

Holding regime (ETVE). Entidades de Tenencia de Valores Extranjeros (ETVE — Spanish entities for holding foreign securities), regulated in arts. 107 and 108 LIS, are Spain’s long-standing holding vehicle. They allow dividends and capital gains arising from qualifying participations in foreign subsidiaries to be exempt at 95% at the ETVE level (art. 21 LIS) and, in addition, the onward distribution of those dividends to non-resident shareholders to be exempt from IRNR withholding provided they are not resident in a tax-haven jurisdiction (art. 108.1 LIS). Requirements: corporate purpose that includes the management of participations, formal notification to the AEAT, holding the qualifying participation (≥5% or cost ≥EUR 20 million) for at least one year, and real economic substance.

General exemption under art. 21 LIS. For non-ETVE entities, the 95% exemption on dividends and capital gains operates under the same participation, holding-period and minimum-taxation-of-the-subsidiary requirements (10% nominal rate or treaty). The effective 95% exemption (the 95% cap was introduced in 2021 via Law 11/2020) means that 5% remains taxable at the standard rate, yielding an effective cost of around 1.25% on the inbound flow — competitive against alternatives, but above Portugal’s or the Netherlands’ 0%.

Outbound withholding. General IRNR rate of 19% on dividends paid to non-residents (art. 25 TRLIRNR). Full 0% exemption for distributions to EU/EEA parents under the Parent-Subsidiary Directive (holding ≥5%, held for one year, beneficial ownership and substance). Bilateral treaties reduce the rate to 5%/10% in most cases.

Treaty network. Spain has more than 95 double taxation treaties in force, with almost full coverage in LatAm (including treaties with Mexico, Brazil, Chile, Colombia, Argentina, Peru, Uruguay) and broad coverage in Africa. This density is one of the strongest arguments against Ireland and the Netherlands when the group’s portfolio is Latin American.

Régimen Beckham. Article 93 LIRPF allows executives relocated to Spain to be taxed as non-residents for six tax years: flat 24% rate on the first EUR 600,000 of remuneration and 47% above. It also applies to highly qualified professionals, entrepreneurs and remote workers (extended by Law 28/2022). It does not include an exemption on worldwide income — it only taxes Spanish-source income and employment income wherever earned.

Substance. Article 21.2 LIS and consolidated DGT doctrine (V0518-22, V1980-23) require the underlying entity and, by extension, the Spanish holding, to have minimum personnel and material resources. ATAD 3 will reinforce this from 2026: if the entity does not have at least one director resident in Spain, physical presence and full-time employees dedicated to the activity, it is treated as a shell and loses access to directive and treaty benefits.

Portugal

IRC rate in 2026: 21% national + municipal derrama up to 1.5% (set by municipalities, typically 0%-1.5%) + state derrama of 3% on profits between EUR 1.5M and EUR 7.5M, 5% between EUR 7.5M and EUR 35M, and 9% on profits above EUR 35M. Total effective rate for a large company can reach 31.5%. SMEs in the interior benefit from a reduced rate (12.5% on the first EUR 50,000).

Participation exemption regime. Articles 51 and 51-C CIRC establish a full (100%) exemption on dividends and capital gains arising from qualifying participations: minimum 10% holding, held for at least one year, in an entity not resident in a Portuguese blacklist jurisdiction, and subject to a nominal rate of at least 50% of the Portuguese IRC (≈10.5%). It is one of the cleanest holding regimes in the EU.

Outbound withholding. General 25% rate on dividends to non-residents (art. 87 CIRC), 35% if paid to a tax-haven jurisdiction. Full exemption for intra-EU distributions under the Parent-Subsidiary Directive. Bilateral treaties reduce the rate to 5%-15% in most cases.

Treaty network. More than 80 treaties. Particularly strong coverage in Portuguese-speaking countries (PALOP: Angola, Mozambique, Cape Verde, Guinea-Bissau, Brazil, Timor-Leste). For groups with exposure to those markets, Portugal offers a structural advantage that is hard to replicate.

Inbound expatriate regime — IFICI. The former NHR (Non-Habitual Resident) regime was terminated in 2024. It is replaced by IFICI (Incentivo Fiscal à Investigação Científica e Inovação), regulated by Decree-Law 22/2024: flat 20% on employment or self-employment income in qualifying activities (R&D, high-skill professions recognised by IAPMEI, university teaching) for 10 years, with conditional exemption on foreign income depending on the income type and jurisdiction. More restrictive than NHR, but still competitive against ordinary taxation.

Substance. ATAD 3 and Portuguese doctrine require a real economic structure to access the participation exemption and treaty benefits. The Autoridade Tributária has tightened its scrutiny since 2022, with focus on holdings without employees or effective management.

Pillar 2. Law 41/2024 transposed GloBE: QDMTT and IIR from 2026 (UTPR from 2025) for groups with consolidated turnover above EUR 750 million.

Ireland

Corporation Tax rate in 2026: 12.5% on trading income (real economic activity, managed and carried on in Ireland), 25% on passive income (interest, royalties, rents, non-exempt dividends). The trading/non-trading distinction is the central axis of the Irish regime. Cases such as Cement Roadstone, Connacht Gold and especially McGee v Revenue Commissioners have shaped the criteria.

Holding regime. Ireland does not have a formal “ETVE-style” regime but offers two mechanisms:

• Capital gains participation exemption (section 626B TCA 1997): full CGT exemption on disposals of ≥5% participations in subsidiaries resident in the EU/treaty network, held for at least 12 consecutive months in the 24 months preceding the disposal, provided the subsidiary has trading activity or the group is predominantly trading on a consolidated basis.
• Treatment of inbound dividends: dividends from EU/treaty subsidiaries are subject to Corporation Tax at 25%, but credit for underlying tax and withholding tax credit apply (imputation system). The net result is usually close to zero effective cost for dividends from jurisdictions with a nominal rate of at least 12.5%.

Outbound withholding. General 25% rate on dividends (Dividend Withholding Tax, DWT). Broad exemptions: EU/EEA residents, residents in a treaty jurisdiction providing reduction, non-resident individual shareholders filing a declaration. In practice, DWT to corporate EU shareholders under the Parent-Subsidiary Directive is 0%.

IP regime — Knowledge Development Box. Section 769G TCA. Effective rate of 6.25% on income from qualifying IP (patents, software, plant breeders’ rights) developed in Ireland with substantial local R&D expenditure. Compliant with the OECD nexus approach.

Treaty network. Approximately 75 treaties. Strong coverage in the EU, US (a particularly favourable treaty, the historic basis for the “Double Irish” structure phased out in 2020), the UK and Australia. Limited LatAm coverage — only Chile, Mexico, Argentina, Brazil, Panama and a few others.

SARP regime (inbound expatriates). Special Assignee Relief Programme: qualified employees relocated to Ireland may deduct 30% of remuneration between EUR 100,000 and EUR 1,000,000 for five years. Narrower than Beckham, but combinable with corporate-level benefits at the employer level.

Substance and effective management. For an Irish entity to be considered tax-resident and trading, central management & control must be exercised in Ireland. Board meetings, strategic decisions and effective management must be documented in Ireland. The informal “Patrick’s Day rules” require the board to meet physically in Ireland on a regular basis and resident directors to participate substantively.

Pillar 2. The Finance Act 2023 introduced QDMTT, IIR and UTPR in line with GloBE. For groups within scope, the top-up tax raises the effective rate to 15%. This neutralizes much of the historic Irish arbitrage for very large groups (Apple, Google, Meta) but preserves the advantage for groups below the EUR 750 million threshold.

Netherlands

Corporate income tax (Vennootschapsbelasting) rate in 2026: 19% on the first EUR 200,000 of taxable base, 25.8% on the excess. Competitive rate in Europe for SMEs, comparable to the upper Spanish or Portuguese bracket for large companies.

Holding regime — participation exemption (deelnemingsvrijstelling). Article 13 Wet Vpb 1969: full (100%) exemption on dividends and capital gains from ≥5% participations, provided one of three tests is met:

1. Motives test: the participation is held for business reasons, not as a pure portfolio investment.
2. Subject-to-tax test: the subsidiary is subject to a reasonable CIT (at least 10% on a base computed under Dutch rules).
3. Asset test: less than 50% of the subsidiary’s assets are passive.

It is historically the broadest and most predictable holding regime in Europe. Its combination with the Dutch treaty network and the flexibility of vehicles (BV, NV, CV, Cooperatie) explains why global multinationals preferred it for decades as an intermediate layer.

Outbound withholding. 0% on dividends to EU/EEA corporate shareholders under the Parent-Subsidiary Directive. 15% general domestic rate, reduced by treaties. Conditional Withholding Tax (CWHT) of 25.8% on dividends, interest and royalties paid to affiliated entities resident in low-tax or EU-listed jurisdictions (Wet bronbelasting 2021, expanded in 2024). This CWHT closes the classic “Dutch sandwich” route to zero-tax jurisdictions.

Treaty network. Approximately 95 treaties — the densest in Europe alongside Spain. Very strong worldwide coverage, including specific LatAm and Asia protocols.

IP regime — Innovation Box. Effective rate of 9% on income from qualifying self-developed IP (patents, S&O-registered assets, software under specific rules). Compliant with the OECD nexus approach.

30%-ruling (inbound expatriates). Qualified foreign employees relocated to the Netherlands may receive 30% of their salary tax-free for five years. 2024 reform: the cap has been reduced (from a flat 30% over 5 years to a tiered 30%-20%-10% scheme over 20-month brackets), and a salary ceiling linked to the Balkenende-norm (≈EUR 246,000 in 2026) has been introduced. Still competitive but less generous than before.

Substance. Wet Vpb art. 8b and the Decree of 19 January 2022 (substance criteria) require qualified employees, relevant expenditure and decisions taken in the Netherlands. ATAD 3 tightens scrutiny: holdings without their own office, without full-time employees and without real activity risk recharacterisation as shell entities.

Pillar 2. The Wet minimumbelasting 2024 transposed GloBE: QDMTT and IIR from 2024, UTPR from 2025. For in-scope groups, top-up to 15%.

When to pick each one

The choice between the four jurisdictions depends on the use case, not on the headline rate. These are the patterns we see in practice:

Intermediate holding for a LatAm portfolio — Spain

Spain wins when the group’s portfolio is predominantly Latin American. The density of treaties (including reduced withholding in Brazil, Mexico, Chile, Colombia), the ETVE as a clean vehicle, and the ability to combine the holding with a real Iberian-LatAm operating layer (shared services, regional management) usually tip the balance. The 5% non-exempt portion (effective ≈1.25%) is real but rarely decisive.

LatAm mining/energy holding with need for rulings — Netherlands

When the group requires maximum legal certainty on complex structures (intra-group royalties, hybrid financing, multilateral joint ventures), the Netherlands remains the reference jurisdiction. The Advance Tax Ruling system with the Belastingdienst, although more restrictive since 2019, offers certainty that no other EU jurisdiction matches. Extractives, infrastructure and energy continue to rely on Dutch structures.

EU SaaS with in-house IP — Ireland

For tech companies with proprietary R&D and significant income from software licensing or patents, Ireland combines the 12.5% trading rate, the Knowledge Development Box at 6.25%, a consolidated professional ecosystem and, for groups below the EUR 750 million threshold, no Pillar 2 top-up. Substance is reasonably substantiable: commercial offices, an R&D team and effective management in Dublin are an investment, but not an insurmountable obstacle.

Iberian-LatAm regional HQ with real operating base — Spain or Portugal

When the holding is accompanied by real operations (regional management, commercial hub, back-office team for LatAm), Spain and Portugal compete head to head. Spain wins on treaties, ETVE and, in many cases, on the supply of senior technical and financial talent. Portugal wins on labour cost, operational simplicity for mid-sized groups and personal attractiveness for executives via IFICI.

Pure operating subsidiary (without holding) — the jurisdiction where the business is

This is the most overlooked point. If the case is to set up an operating subsidiary to serve the Spanish market, the decision is not won by arbitraging with the Netherlands: the economic activity is in Spain, the customers are in Spain, the regulation (employment, sector-specific, GDPR) is Spanish. Attempting to invoice from a foreign holding to “save” CIT typically ends in a hidden permanent establishment assessment. The subsidiary goes where the business is.

Impact of Pillar 2, ATAD 3 and DAC9

Three 2024-2026 regulatory initiatives change the decision calculus:

Pillar 2 (GloBE rules + QDMTT)

The OECD/Inclusive Framework GloBE rules, transposed in the EU via Directive (EU) 2022/2523 and at domestic level via Law 7/2024 (Spain), Law 41/2024 (Portugal), Finance Act 2023 (Ireland) and Wet minimumbelasting 2024 (Netherlands), ensure that no multinational group with consolidated turnover above EUR 750 million is taxed below an effective 15% rate in any jurisdiction where it operates. The mechanism is threefold: QDMTT (top-up collected by the jurisdiction itself), IIR (top-up collected by the parent) and UTPR (top-up collected by other group jurisdictions if the previous two do not apply).

Practical implication: arbitrage between Ireland at 12.5% and Spain at 25% is neutralized for large groups. What matters now is no longer the headline rate, but administrative friction (GloBE returns, reconciliations, technical reserves), the substance carve-out (deduction of tangibles and payroll from the GloBE calculation) and the ease of administering the regime.

ATAD 3 (UNSHELL)

The ATAD 3 Directive proposal — formally the “Unshell Directive” — is still under negotiation in the Council, but the criteria it defines (entities with passive income >65%, no real activity, no own office, no qualified directors, no operational substance) are already being applied de facto by the tax administrations of all four jurisdictions as audit criteria. An entity that fails the substance test loses access to EU directives and bilateral treaty benefits.

Practical implication: any holding set up with a mailbox and a formal director is obsolete. The question is not whether it will be audited, but when and with what consequences.

DAC9

Directive (EU) 2025/872 on the automatic exchange of Pillar 2 information between EU tax administrations enters into force in 2026. The AEAT will automatically receive the GloBE returns filed in other jurisdictions where the group operates. This closes the last margin of opacity over cross-border structures for groups within Pillar 2 scope.

Strategic conclusion: the jurisdiction decision moves from “minimize the rate” to “minimize friction + maximize useful substance”. Spain, Portugal, Ireland and the Netherlands are increasingly competing for the same client profile — the group that needs a real hub, not a mailbox.

Common structuring mistakes

1. Setting up a Dutch BV without real operations expecting the participation exemption to do the work. ATAD 3 and section 8b Wet Vpb turn it into a shell. The cost of maintaining minimum substance (office, two qualified employees, resident director, operating costs >EUR 100,000/year) frequently exceeds the saving against a well-structured Spanish ETVE.

2. Mixing pure holding with operations in the same entity. It is common to see Spanish ETVEs that also invoice services. Result: the audit team challenges the allocation of resources between the holding activity and the operating activity, and substance becomes blurred. Better to separate into two entities within the same group.

3. Failing to document decision-making. Substance is evidenced through board minutes, operating decisions and documentary proof that effective management is where it claims to be. A holding whose board meets twice a year via Zoom from abroad does not survive an audit, in any of the four jurisdictions.

4. Tax residence of directors not aligned with effective management. If the CEO of the Spanish holding lives and works from Lisbon or Dubai, there is real risk that the AEAT (or any of the other three administrations) will challenge the tax residence of the entity and recharacterize it.

5. Assuming a bilateral treaty covers any intra-group flow. LOB (limitation on benefits) and PPT (principal purpose test) clauses introduced by the MLI (OECD multilateral instrument) and the beneficial ownership doctrine are hard criteria actively applied since 2022. A dividend from Brazil to a Spanish holding without substance does not receive the treaty reduced rate.

6. Comparing headline rates without computing the real effective rate. Portugal “21%” can be 31.5% with derramas, Ireland “12.5%” can be 15% with QDMTT, Spain “25%” can be 23% (microenterprise) or 15% (start-up) or an effective 1.25% on holding flow. The headline rate alone says very little.

7. Not factoring in the cost of migration. Relocating an operating entity between jurisdictions has implications for exit tax (art. 19 LIS in Spain, equivalents in the other three), contractual, employment and licensing continuity. The structuring decision must be made up front — fixing it later costs orders of magnitude more.