When you sell shares in your own BV or decide to liquidate, you naturally hope for profit. But sometimes the outcome is a loss. That feels disappointing, yet it doesn’t have to be the end of the story. In fact, those losses can carry fiscal value if you know how to use them. Let’s look at how Box 2 losses work, what rules apply, and what small business owners should keep in mind.

What is a Box 2 loss?

In the Netherlands, income from a substantial interest (aanmerkelijk belang, AB), meaning 5% or more of the shares in a BV, falls under Box 2.

When you sell or liquidate, you calculate your capital gain or loss:

Sales proceeds (or liquidation distribution), acquisition price (your original investment)

If the result is negative, you have a Box 2 loss.

How is the loss treated?

The tax system offers two steps for handling your loss:

1. Offsetting within Box 2 (the primary route).
2. Conversion into a Box 1 tax credit (if offsetting is no longer possible).

The loss first appears in your personal income tax assessment for the year of sale or liquidation.

Step 1: Offsetting within Box 2

The first option is to balance your loss against other Box 2 income.

• Losses can be carried back one year.
• And carried forward for six years (for older losses before 2018: nine years).

So, if you receive dividends or sell other substantial interests within that timeframe, your Box 2 loss can reduce those taxable gains.

Step 2: Conversion into a tax credit

If you no longer hold any substantial interest and can’t offset the loss, there’s another option: conversion into a Box 1 tax credit.

• Timing: From the second year after you no longer hold a substantial interest, and only once the Tax Authority has definitively confirmed the loss.
• Value: In 2025, the credit equals 24.5% of the remaining loss.
• Use: It reduces your Box 1 tax bill (income from work and home).
• Validity: The credit is available for nine years after the loss year.

Important condition: neither you nor your tax partner may hold a substantial interest in the year of conversion, or the year before.

Example

You invested €100,000 in your BV.

After liquidation, you only get €30,000 back.

• Box 2 loss: €70,000.
• No Box 2 income to offset: After two years, you request conversion.
• Tax credit: 24.5% × €70,000 = €17,150.
• This amount directly reduces your Box 1 income tax liability.

So even though you’ve suffered a real financial loss, fiscally it softens the blow.

Practical tips for entrepreneurs

• Keep evidence of your acquisition price: including purchase costs, share premiums, and contributions.
• Track your timelines: 1 year back, 6 years forward for offsetting; 9 years for using the tax credit.
• Wait until the loss is definitive: the Tax Authority won’t process conversion requests earlier.
• Check partner holdings: make sure neither you nor your partner still holds a substantial interest when you apply.

Conclusion

For entrepreneurs running micro or small BVs, a Box 2 loss doesn’t have to mean wasted money. By using the rules smartly, you can turn that loss into a tangible tax advantage, either by offsetting it within Box 2 or converting it into a Box 1 credit. In practice, this can significantly reduce the financial impact of closing or selling your BV.