Owners of real property and professionals whose work crosses borders face a rapidly evolving tax environment. Recent multilateral initiatives, supranational guidance and a wave of domestic reforms have altered both corporate and personal tax exposure, requiring proactive, technically rigorous planning that aligns ownership structures, residency positions and compliance processes.

This practical guide sets out actionable considerations for property owners and mobile professionals operating across jurisdictions. It focuses on risk identification, documentation, and operational changes that reduce exposure while preserving commercial flexibility in light of recent developments such as the global minimum tax implementation and updated cross-border remote‑work guidance.

Overview of recent domestic and multijurisdictional reforms

Since 2024, the international tax landscape has been dominated by implementation of the OECD’s Global Anti‑Base Erosion (GloBE) or “Pillar Two” model rules and by national measures to operationalise qualified domestic minimum top‑up taxes (QDMTTs). These instruments change how groups with cross‑border activities compute effective tax rates and allocate taxing rights, and they materially affect ownership structures that hold or operate property through corporate or passthrough vehicles.

At the same time the OECD updated its Model Tax Convention and commentary to address cross‑border remote working and clarify when remote activity may create a taxable presence for employers and contractors. The guidance is intended to reduce ambiguity for shorter or hybrid working patterns but also signals that tax offices will expect closer documentation and risk analysis for mobile staff.

Domestic reforms in major jurisdictions have followed. For example, several EU member states and other jurisdictions have adopted legislation to implement Pillar Two, and some countries have introduced additional high‑income contributions and departure taxation rules affecting individuals who move residence. Practitioners must therefore monitor both corporate‑level minimum tax mechanics and parallel changes to personal tax regimes in relevant locations.

Property ownership structures: tax efficiency and exposure

Choice of ownership vehicle (individual title, domestic company, foreign holding, real‑estate partnership or REIT) remains foundational. The global minimum tax and related domestic measures change the calculus where property is held through entities that form part of multinational groups: effective tax rate computations, top‑up liabilities and potential undertaxed profits adjustments can apply. Advisers should reassess whether holding companies or intermediate vehicles create incremental Pillar Two reporting or tax obligations.

Transfer pricing and interest allocation rules continue to matter for property investments financed across borders. Lenders and intra‑group funding create taxable interest flows and thin capitalisation or limitation on interest deduction rules in many jurisdictions. Structuring should therefore reconcile financing, withholding tax, and the local deductibility landscape to avoid double taxation or denial of deductions on audit.

For high‑net‑worth individuals and non‑resident owners, departure taxes and special contributions introduced in some domestic laws can crystallise liabilities on unrealised gains or on deemed income. Early analysis of the timing of disposals, the jurisdiction of residence and the interaction with local exit regimes will often yield material tax savings or at least avoid unexpected tax events.

Mobile professionals: permanent establishment, personal residency and payroll risks

Remote and hybrid working have increased the risk that an employee or contractor creates a taxable presence (permanent establishment) or triggers payroll withholding in a jurisdiction where the business did not anticipate exposure. The OECD’s updated Model Tax Convention offers clarifications on short‑term cross‑border remote work that should be used as a baseline for cross‑border risk assessments and contract design.

Personal tax residency rules, and the administrative practices that enforce them, vary significantly by country. Mobile professionals should document days in each jurisdiction, retain contemporaneous travel and work records, and obtain binding or advanced rulings where possible in higher‑risk situations. Companies must align HR policies, payroll configuration and social security treatment with that documentation to limit compliance gaps.

Beyond residency, immigration and work‑permit rules are often the first line of regulatory risk. Tax planning must therefore be integrated with immigration review and local employment law; failure to coordinate can produce retroactive payroll tax, social contributions and penalties.

Pillar Two practical implications for groups owning property

The GloBE rules (Pillar Two) affect groups with consolidated revenues above the thresholds set by the Inclusive Framework: they establish a 15% effective minimum tax at the jurisdictional level and create mechanisms (IIR, UTPR and QDMTTs) to collect shortfalls. Property‑holding entities that form part of larger groups need to be modelled in the GloBE calculation to determine whether jurisdictional top‑ups or undertaxed profits allocations will arise.

Many jurisdictions have published implementing rules and administrative guidance, and some offer safe‑harbours for QDMTTs. Where a QDMTT is available, local filing, payment and designation rules will determine whether the domestic top‑up relieves the group from further IIR/UTPR adjustments. Advisers should map which jurisdictions relevant to their property portfolios have enacted QDMTTs and examine any safe‑harbour eligibility carefully.

Practical operational steps include updating tax‑consolidation templates, enhancing reporting systems to capture jurisdictional effective tax rates, and deciding who (which constituent entity) will be designated to make top‑up payments where domestic rules permit designation. Early modelling reduces surprises at first filing and can inform whether restructuring or repatriation of income is warranted.

Reporting, documentation and compliance: deadlines and administrative practice

Jurisdictions implementing Pillar Two commonly require disclosures and returns in addition to any QDMTT payment. Administrations also expect detailed supporting documentation that explains GloBE calculations and allocations. Groups should centralise GloBE workstreams and adopt a repeatable documentation pack to support audits and mutual agreement procedures.

France, for example, has set operational deadlines and practical rules for notification, designation and payment of domestic top‑up tax where applicable; these administrative rules include defined filing dates and the possibility to designate a French group entity to fulfil the payment obligation. Practitioners working with French exposures must reconcile group‑level GloBE computations with French reporting templates and timelines.

On the personal side, robust contemporaneous records of travel, work location, and contracts of employment will be essential where residency or short‑term presence rules could trigger late‑filing obligations. Proactive voluntary disclosures and clarifying correspondence with tax authorities can materially reduce penalties and interest in many administrations.

Practical planning checklist and risk‑mitigation measures

1) Inventory and mapping: identify all entities holding real estate, their group affiliation, and the jurisdictions where personnel work. Map which entities fall within Pillar Two scope and whether QDMTTs or other domestic top‑up mechanisms apply. This mapping is the basis for any further modelling and restructuring considerations.

2) Model and quantify: run jurisdictional effective tax‑rate calculations under GloBE assumptions, stress‑test financing, withholding and transfer pricing arrangements, and quantify potential top‑up liabilities and compliance costs. Use these outputs to evaluate restructuring, repatriation or operational changes.

3) Document and adopt policies: implement travel and remote‑work policies, payroll triggers and sourcing policies that align with tax positions. For property owners, ensure lease terms, management agreements and service contracts reflect arms‑length pricing and traceable economic activity. Where uncertainty remains, seek ruling or agreement procedures early.

Managing disputes and preparing for audits

With new rules comes increased enforcement focus. Tax administrations are developing audit programmes for Pillar Two and remote‑work‑related PE risks; they will expect reconciled calculations and contemporaneous evidence. Anticipate deeper document requests and prepare litigation strategies and mutual agreement procedure filings where double taxation or treaty conflicts arise.

Engage external forensic and transfer‑pricing specialists early for high‑risk structures, and consider advance pricing agreements, rulings or bilateral/multilateral dispute resolution mechanisms when exposures are material. For mobile professionals, documented policies and employer‑sponsored letters clarifying the nature and duration of activities may mitigate PE assertions.

Finally, maintain a single source of truth for filings and supporting documentation: central repositories speed response times in audits and show good faith cooperation, an important factor in administrative outcomes and potential penalty mitigation.

Practical fiscal planning for property owners and mobile professionals now requires integrated thinking across corporate tax, personal residency, payroll and compliance functions. The combination of Pillar Two implementation and updated international guidance on remote work elevates the importance of early mapping, precise modelling and clear documentation.

Advisers should prioritise jurisdictional scans, GloBE modelling and the adoption of robust operational policies that align commercial reality with tax positions. When complexity or uncertainty arises, seek binding rulings and prepare contemporaneous documentation, these measures materially reduce the risk of adverse adjustments and support resilient, long‑term ownership and mobility strategies.