EU Court Strikes Down Portuguese Property Transfer Tax on Company Restructurings

The article that prompted this analysis points to the Netherlands as an example. Key Dutch rules to note:

• Dutch RETT generally does not apply to share acquisitions, except where a company qualifies as a real estate company (onroerendgoedrechtspersoon).
• A qualifying share interest is typically 33 1/3% or more if the acquirer is an entity.
• The company tests include asset composition: at the moment of acquisition, or in the prior 12 months, more than 50% of assets must be real estate and at least 30% located in the Netherlands; and 70% of the real estate must have been instrumental to acquisition, disposal or exploitation (leasing) at relevant times.
• Dutch law contains RETT exemptions for restructurings — for example the internal reorganisation exemption and the merger exemption — but those come with conditions and clawbacks.

The CJEU judgment raises two central questions for countries like the Netherlands:

• Is a share transfer within a restructuring an “independent transaction” (so Article 6(1)(a) applies), or an incidental transaction integrated in the restructuring (so Article 5(1) forbids the tax)?
• Where a national RETT exemption fails because its conditions are not fully met, can taxpayers rely on the CJEU judgment to argue incompatibility with EU law?

National courts and tax authorities will have to decide. The Netherlands did not submit observations to the CJEU in this case, unlike some other Member States. That means administrative guidance, litigation and possibly legislative responses are likely.

Practical steps for owners, investors and advisers

Here is how market participants should react now:

• For any corporate restructuring completed recently: check time limits for appeals or objection procedures. If an assessment is still challengeable, consider lodging or reopening objections on the basis of the CJEU ruling.
• For restructurings in planning: reassess tax modelling and rerun scenarios that previously assumed RETT on share contributions. Factor in administrative clearance timelines and the possibility of retroactive challenges by tax authorities.
• For international investors holding property via companies: review whether your holding fits the directive’s restructuring rules. If it does, the transaction may avoid RETT — but only where the operation is not fictitious and does not seek to circumvent targeted anti‑abuse rules.
• For tax counsel and corporate advisers: prepare to argue that relevant share transfers were integral to a restructuring and thus fall under Article 5(1). Equally prepare counterarguments for anti‑abuse scrutiny; the CJEU rejected blanket anti‑avoidance justifications but left room for targeted measures.

Key documentation to gather now:

• Transaction resolutions, board minutes and shareholder agreements demonstrating the commercial rationale for the restructuring.
• Valuations and balance sheets showing the mechanics of the in‑kind contribution.
• Timelines proving that the share transfer was integral to the formation or reorganisation of the capital company.

Risks and likely tax authority responses

Legal victory in court does not end the story. Expect at least three reactions from tax authorities and governments:

• Administrative guidance clarifying how they will apply the judgment. Expect narrow readings of what constitutes a restructuring and stricter evidentiary demands.
• Legislative amendment to align national rules with the directive while seeking to close perceived gaps. That could include targeted anti‑abuse rules or new thresholds.
• Litigation as tax authorities litigate borderline cases on independence of transactions and the presence of abuse.

A balanced investor approach accepts the ruling as a material headwind for RETT in certain restructurings but also recognises the period of legal uncertainty that follows. I recommend conservative planning: document commercial substance, get pre‑transaction rulings where possible, and preserve rights of appeal on past assessments.

How advisors are likely to change practice

Tax and corporate advisers will update checklists and due‑diligence procedures. Expect these shifts:

• More frequent requests for written tax positions and pre‑transaction clearances.
• Wider use of restructuring exemptions in national law alongside direct reliance on EU law arguments.
• Closer scrutiny of whether a share transfer is an 'independent' sale or an incidental part of a capital formation.

In short: advisers will need to provide layered opinions—national law and EU law—so clients can decide whether to rely on the CJEU judgement or take a cautious route using domestic exemptions.

Frequently Asked Questions

Q: Does the CJEU judgement mean no RETT will ever apply when shares in a company owning Portuguese property are contributed to a new company?

A: No. The judgement prohibits RETT only where the contribution falls within the definitions of a restructuring or a capital contribution under the Capital Duty Directive. Transfers that are independent commercial sales of shares or genuine transfers of legal property title may still attract RETT.

Q: Can taxpayers claim refunds for RETT already paid on past restructurings?

A: Possibly, but only where the statutory time limits for objection or appeal are still open. Taxpayers should immediately check deadlines and prepare documentary evidence showing the transaction met the Directive’s restructuring criteria.

Q: Will other EU countries follow Portugal and stop levying RETT in these cases?

A: The judgement is directly binding on national courts. It constrains Member States’ ability to tax restructurings in the manner criticised. How each country responds will differ: some will adjust administration, others will amend legislation. Expect litigation in jurisdictions that tax through share transfers.

Q: Can tax authorities still use anti‑avoidance rules to block the benefit of this decision?

A: Yes. The CJEU rejected blanket justifications for anti‑avoidance. But it left room for targeted measures where concrete evidence of abuse exists and where proportionality is maintained. Authorities will need to show specific abusive arrangements, not rely on presumptions.

Bottom line for buyers and investors

The CJEU’s June 4, 2026 decision in Case C‑837/24 (Nova Iberomoldes) removes a legal basis for charging Portuguese RETT on share contributions that form a capital company when those operations meet the Capital Duty Directive’s restructuring tests. This changes the tax profile of many corporate reorganisations involving real estate Portugal, and creates windows to contest historic RETT assessments where appeals remain possible.

Practical next steps are straightforward: review pending appeals, update transaction models, document commercial substance rigorously, and seek specialist tax advice before relying on the judgment for a live deal. Start by verifying whether any RETT assessments you face are still within appeal periods and whether the restructuring criteria are met; that is the most concrete action you can take today.