Real Estate Transfer Tax (RETT) in Dutch M&A Transactions: What Every Buyer and Seller Must Know

Dutch Real Estate Transfer Tax — known locally as overdrachtsbelasting, abbreviated as RETT — is one of the most underestimated taxes in M&A transactions. Buyers who leave the RETT analysis to the final stages of a deal risk facing an unexpected tax charge running into hundreds of thousands of euros, or missing out on an exemption that was readily available with earlier structuring.

Whether you are buying or selling a business with real estate exposure, the RETT position deserves its own dedicated analysis. In this article, the M&A tax specialists of Port Sight Tax explain when RETT applies, how the tax base is calculated, which exemptions are available, and where the most common pitfalls lie.

Quick answer: When is RETT due in an M&A transaction?
In an asset deal: upon every direct transfer of Dutch real property. In a share deal: if the target qualifies as a real estate company and a substantial interest is acquired. The tax base in a share deal is the gross fair market value of the underlying real estate — liabilities do not reduce it.

1. Asset deal versus share deal: two different RETT worlds

The deal structure is the most important determinant of the RETT position. In an asset deal, the seller transfers real property directly — RETT follows as a matter of course. In a share deal, the buyer acquires shares, but Dutch transfer tax law can still bring the acquisition within the scope of RETT if the target qualifies as a real estate company.

The table illustrates that the distinction is not only about the taxable event, but also about the tax base and the available exemptions. Both structures are examined in detail below.

2. The real estate company test: when are shares treated as real property?

One of the most technically demanding — and practically consequential — questions in any M&A transaction involving Dutch real estate is whether the target qualifies as a real estate company. If it does, the share acquisition is treated as a real property transfer for RETT purposes.

Three cumulative requirements

A legal entity qualifies as a real estate company if all three of the following conditions are met simultaneously:

• More than 50% of the entity’s assets consist — or consisted in the preceding year — of real property, anywhere in the world;
• At least 30% of total assets consist of real property situated in the Netherlands;
• The real property, taken as a whole, is more than 70% dedicated to the acquisition, disposal, or exploitation of real estate.

The third condition is critical in practice. Real estate used in an entity’s own operating business — such as a factory, logistics centre, or office building used by a manufacturing company — typically does not count towards that 70% threshold. As a result, an industrial company that owns its premises will rarely qualify as a real estate company, whereas a real estate investment fund almost invariably will.

Consolidation of subsidiaries

When assessing whether the thresholds are met, the assets of subsidiaries in which the entity holds an interest of at least one-third are attributed pro rata. This consolidation principle can produce unexpected results in holding structures: a parent company may qualify as a real estate company even if it holds no real property directly, solely because of property held at a lower group level.

Practical tip
Conduct the real estate company test as a standard step in every share deal involving a group with real estate assets. The consolidation rules can change the outcome unexpectedly — even where real property is held only at a subsidiary level.

3. The tax base: the look-through approach

A fundamental difference between asset deals and share deals lies in how the RETT tax base is determined.

Asset deal: fair market value

In a direct acquisition of real property, RETT is calculated on the fair market value (FMV), with the purchase price serving as a floor. Where the consideration is below the FMV, the FMV forms the tax base.

Share deal: gross value of the underlying real estate

In an acquisition of shares in a real estate company, an entirely different logic applies — the so-called look-through approach. The tax base is the value of the underlying real property represented by those shares. The critical implication: liabilities within the entity, such as a mortgage, do not reduce the RETT tax base.

Example: a BV holds a commercial property with a FMV of EUR 5,000,000, financed with a mortgage of EUR 3,000,000. The net asset value of the shares is EUR 2,000,000 — but the RETT base in a share deal is EUR 5,000,000. At 10.4%, this results in a RETT charge of EUR 520,000, compared to EUR 208,000 if the deal were structured as an asset deal based on the net asset value.

Key point
The look-through approach can make RETT in a share deal significantly higher than the acquisition price suggests. Always calculate the RETT base separately, using the gross fair market value of the real estate — not the enterprise value or equity price paid.

4. Substantial interest: when does the charge arise?

Not every acquisition of shares in a real estate company triggers RETT. The law requires that a qualifying substantial interest is acquired or increased as a result of the transaction.

In most M&A transactions where a majority stake is acquired, this threshold will be met. In the case of minority stakes or phased acquisitions, a more detailed analysis is required to determine whether — and at what moment — the threshold is crossed. Where a deal takes place across multiple tranches, earlier acquisitions may in certain circumstances aggregate with later ones.

5. Group and reorganisation exemptions

Within M&A processes, the reorganisation exemptions are essential for achieving tax-neutral internal transfers and restructurings. The four most relevant exemptions are summarised below.

Legal merger

Available upon a universal transfer of assets and liabilities through a statutory merger, provided the merger is driven by genuine commercial considerations — such as rationalisation or operational integration — and not primarily by the aim of avoiding RETT.

Business merger

Applies where an entire business, or a distinct and independently operating part thereof, is transferred to another entity in exchange for shares. A cash payment alongside the shares is permissible up to a maximum of 10% of the value of the shares issued.

Group exemption

Applies to transfers between group companies connected by a shareholding of at least 90%. Foundations can also sit at the top of such a group. This exemption is particularly relevant in M&A processes where internal restructuring takes place ahead of a sale to a third party, for example to carve out a particular business line or property portfolio.

Legal demerger

Available upon a pure demerger or spin-off through a statutory procedure, provided the demerger is not predominantly aimed at avoiding RETT or other taxes.

6. Holding periods and claw-back

Most reorganisation exemptions are conditional. The Dutch tax authorities will reclaim the exemption retroactively if, within three years of the transaction, either of the following events occurs:

1. The shareholding relationship within the group is broken — for example, because the subsidiary is sold to a third party outside the group.
2. The business or real property transferred is discontinued or disposed of.

There is one important exception: if the subsequent transaction is itself a qualifying reorganisation, the original exemption is preserved. This is relevant, for instance, where assets are moved further down the group structure through a consecutive qualifying transaction.

Key point for buyers
When acquiring a target, always check whether the target entity or its assets were involved in an exempt reorganisation during the past three years. If the claw-back period is still running, the buyer may inadvertently inherit a latent RETT liability that could materialise after closing.

7. Overlap with VAT

In M&A transactions involving newly constructed property or building plots, the overlap exemption can prevent both VAT and RETT being charged on the same transfer.

The general rule

The RETT exemption applies where the supply is subject to VAT by operation of law — that is, where the transfer occurs before, on, or within two years of the property’s first use.

The unless rule

The overlap exemption falls away — making RETT due — where the property has been used as a business asset and the buyer is entitled to full or partial VAT recovery. In that scenario, both taxes apply simultaneously.

Look-through effect for real estate company shares

The Dutch Supreme Court has confirmed that the overlap exemption can also apply to the acquisition of shares in a real estate company, provided the underlying assets consist of new, previously unused real property. This look-through effect can generate substantial RETT savings in share deals where the target holds newly built properties.

8. Checklist: RETT considerations for your transaction

• Conduct the real estate company test on the target entity and its subsidiaries before any share deal — consolidation rules can produce unexpected results.
• Calculate the RETT base in a share deal on the gross FMV of the real estate, not the equity purchase price or net asset value.
• Analyse whether a reorganisation exemption is available and ensure all conditions are satisfied in good time.
• Monitor the claw-back: verify whether the target or its assets were involved in an exempt reorganisation within the past three years.
• Assess the VAT status of any real property involved and the potential application of the overlap exemption.
• Factor the RETT position into the negotiation of purchase price, warranties, and indemnities at an early stage.
• Engage a specialist tax adviser who can oversee both the direct transaction and the underlying holding structure simultaneously.

Port Sight Tax helps you manage your RETT exposure

The M&A tax team at Port Sight Tax advises buyers and sellers on the structuring of transactions with real estate exposure — from family businesses to mid-market real estate-intensive enterprises.

Our services:

• Real estate company analysis and RETT tax base assessment
• Structuring under reorganisation exemptions and monitoring of claw-back periods
• Assessment of RETT and VAT overlap
• RETT section within the tax due diligence report
• Support with tax warranties and indemnities in the sale and purchase agreement

Contact our M&A team for an initial, no-obligation conversation.