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Box 2 for Expats: Substantial Interest Explained

Published
Updated
ByJolande Geerts

Short answer

Dutch Box 2 usually applies if you, alone or together with your fiscal partner, directly or indirectly hold at least 5% of certain rights in a company or similar entity. That can include ordinary shares, options, profit rights, or voting rights in a Dutch or foreign company.

For expats, the difficult part is rarely the label alone. The real issue is knowing which event creates Box 2 income, how Box 2 differs from salary and Box 3, and why emigration can suddenly turn a dormant shareholding into a tax-planning issue.

Who this article is for

  • expats with shares in a private company, family company or management vehicle
  • founders, executives or key employees with dividend rights or stock options
  • people moving into or out of the Netherlands while still holding a substantial interest

Step 1: check whether you have a substantial interest at all

Belastingdienst says you have an aanmerkelijk belang, or substantial interest, if you and your fiscal partner directly or indirectly hold at least 5% of relevant rights. The official examples include shares, profit rights, usufruct-type rights, voting rights in a cooperative, and options to buy at least 5% of the shares.

Two practical points matter for expats. First, the test can apply to foreign companies as well as Dutch ones. Second, the 5% analysis can apply per class of shares, so a stake that looks small overall can still qualify when the rights are sliced into different classes.

Step 2: separate salary, shareholder income and other income streams

Many expats mix three different tax buckets:

  • salary for work in the company
  • shareholder income such as dividends
  • private assets or other claims that fall outside Box 2

That separation matters. Belastingdienst is clear that salary from your own company belongs in Box 1, not Box 2. At the same time, dividends and similar distributions are regular Box 2 benefits. And if you lend money to your own company, the interest on that loan is not automatically a Box 2 dividend either; it can follow a different regime altogether.

So do not treat every payment from “your own company” as one tax bucket. The legal reason for the payment matters.

Step 3: know which events can trigger Box 2 tax

The most common Box 2 triggers are:

  • dividend or other profit distributions
  • selling shares or other rights that belong to the substantial interest
  • gifting or exchanging shares
  • dropping below the 5% threshold in a way that counts as a disposal event
  • emigrating while still holding the substantial interest

Belastingdienst distinguishes between regular benefits and disposal benefits. In plain English, that means a quiet year with no dividend can still become a Box 2 year if there is a sale, gift, restructuring or other disposal event.

What the current Box 2 rates look like

The official 2026 Box 2 page states that the rate is 24.5% up to €68,843 and 31% above that amount. Those thresholds can change by tax year, so expats should never copy an old tax memo without checking the current year first.

That rate information is useful, but timing is usually more important than the headline percentage. The expensive mistake is often failing to recognise when Box 2 has already been triggered.

Why emigration needs extra caution

If you emigrate from the Netherlands, Belastingdienst says you can receive a conserverende aanslag, often translated as a preserving or protective assessment. The tax may not have to be paid immediately if you keep to the conditions, but the move abroad is still a formal risk moment.

That means an emigration year is never just an address-change exercise if you still hold a substantial interest. You need the shareholding facts, dividend history, acquisition price and cross-border timeline ready before the move is finalised.

Common expat scenarios

Founder moving abroad

A founder with 10% in a Dutch or foreign company is already in obvious Box 2 territory. The move abroad adds an extra review step because exit-related rules may apply.

Employee with management shares or options

An option package may start as a compensation topic, while the continuing rights position later becomes a Box 2 issue. That is why payroll treatment and shareholder treatment should be reviewed separately.

Couple where one partner formally holds the stake

The 5% test can look at you together with your fiscal partner. A structure that seems below the threshold when viewed alone may still need Box 2 review when partner positions are combined.

What to do now

  • confirm whether you and your fiscal partner meet the 5% test in any share class or rights package
  • separate salary, dividend, loan-interest and asset-income documents before preparing the return
  • identify whether the relevant year is a dividend year, sale year, restructuring year or emigration year
  • keep acquisition-price records, shareholder registers and dividend notes together
  • get specialist review early if a move abroad or company sale is planned

Common mistakes

  • assuming only Dutch companies can create a Dutch Box 2 issue
  • looking only at ordinary shares and ignoring options or other rights
  • treating salary from your own company as if it were Box 2 income
  • realising too late that a move abroad can trigger preserving-assessment questions

Official sources

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