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Calculation method box 3 period 2023-2025 The Netherlands

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Jeroen Mijlof

Jeroen Mijlof

Dutch Tax, Accounting and Brexit Expert

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Calculation method box 3 period 2023-2025 The Netherlands

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In the Bridging Act box 3 for the period 2023-2025, the Dutch cabinet will opt for the savings variant as a calculation method to determine the box 3 levy. This is in response to the Redress of Rights Act box 3 (the codification of the Redress of Rights Decree box 3 of 28 June 2022) for the period 2017-2022.


Box 3 in the bridging years 2023 to 2025 will be calculated on the basis of the calculation method that also applies to the restoration of rights, with a few minor adjustments.The percentages used for returns per type of asset (savings, investments or debts) are determined annually so that they are as close as possible to reality.These are the provisional return percentages for 2023:

  • Bank and savings balances and cash: 0.36%
  • Investments/other assets: 6.17%
  • Liabilities: 2.57%

The difference between the restoration of rights and the bridging legislation

In the tax returns of 2021 and 2022, the Tax and Customs Administration still uses the old, original calculation method.In addition, the Tax and Customs Administration makes a recalculation based on the actual asset mix.If the new calculation is more favourable, the tax return will be adjusted automatically.But it is still possible to opt for the old calculation method.This option will expire in tax year 2023.

Future box 3 system

It is not yet known what the new system will look like as of 1 January 2026.In 2023, the government will elaborate the proposal and the House of Representatives will discuss the choices that need to be made.

It is well known what the new system should look like.In the new system, tax is levied annually on the actual income from assets, such as interest, dividend, rent and lease.In addition, tax is levied annually on the positive and negative value development of assets in box 3, such as price gains or losses on shares, value increases or decreases in value of real estate.With regard to the real estate, it has yet to be determined how the value development will be calculated.This can be done, for example, via a fixed amount based on the market value or WOZ value, or by calculating the difference between the market value or WOZ value on December 31 and January 1 of the year in question.The new system is expected to be introduced on 1 January 2026.


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