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    How is my Box 3 income for 2023 calculated?

    The Box 3 income for 2023 is calculated according to the new legislation (Wet Rechtsherstel Box 3 and the Overbruggingswetgeving). This means we use the actual distribution of your assets. In the calculation, we use fictitious rates of return that are close to the actual rates of return. See what percentages these are and how the calculation works.

    Rates of return 2023

    In 2023, we use fictitious rates of return that are close to the actual rates of return for your Box 3 income. That is why we use 2 different rates for your assets: one for your bank balances, and another for your investments and other assets. We use a 3rd rate for your debts.

    These are the rates of return for 2023:

    • Bank balances: 0.92%

      This only includes the following assets:

      • bank and savings balances in the Netherlands
      • bank and savings balances outside the Netherlands
      • cash in excess of the exemption
      • premium deposits
      • the non-exempt part of your green savings
      • your share in the assets of an owners' association (VvE)
      • an amount of money that you have transferred to the trust account of a civil-law notary

    • Investments and other assets: 6.17%

      This includes investments and all other assets that do not fall under bank balances. This concerns, for example:

      • shares, bonds, securities and other investments
      • the non-exempt part of your green investments
      • other receivables (except receivables between tax partners or between parents and minor children)
      • a 2nd home in the Netherlands
      • a 2nd home outside the Netherlands
      • a home that you rent out
      • other immovable property
      • cryptocurrency
      • a ticket on which a prize has fallen

    • Debts: 2.46%

      This includes all debts that you must declare in Box 3. This concerns, for example:

      • debts for, for example, a car or a holiday
      • negative balance on a bank account
      • debt to finance shares, bonds, securities and other investments
      • debts for a 2nd home or other immovable property (mortgage)
      • debts that you are not allowed to deduct in Box 1
      • an amount of lifelong learning credit that you must repay
      • inheritance tax
      • a debt resulting from a donation on paper (except the debt between tax partners or between parents and minor children)

    The complete list of assets and debts you must declare in Box 3 can be found at What are your assets and debts? (only available in Dutch)

    The old calculation method no longer applies

    For the years 2017 to 2022, we calculated your Box 3 income using the old and the new method. The most favourable method was then applied. This no longer applies for 2023. We will only calculate your Box 3 income using the new method.

    Supreme Court ruling

    On 6 June 2024, the Supreme Court of the Netherlands (Hoge Raad) ruled that the Wet Rechtsherstel Box 3 and the Overbruggingswetgeving violates the European Convention on Human Rights (ECHR). If the ruling impacts the calculation of your Box 3 income, you will receive a letter from us.

    Calculation of your Box 3 income for 2023

    This is how you calculate the Box 3 income in 2023 in 6 steps:

    1. Calculate the taxable return

      Use the provisional return rates we mention above to calculate the return per asset type. You assume the value of your assets and debts on 1 January 2023.

      Add the return on bank balances to the return on investments and other assets. You reduce the total by the return on deductible debts. This is your taxable return.

    2. Calculate your capital yield tax base

      You also calculate your capital yield tax base. That is your assets minus your debts. You may not deduct your debts in full. You reduce your debts by the threshold (only available in Dutch).

    3. Calculate your basis for savings and investments

      You reduce your capital yield tax base (outcome step 2) by the tax-free allowance. The sum is the basis for savings and investments. You may divide the basis if you have a tax partner. Any division is allowed, as long as the total is 100%.

    4. Calculate your share in the capital yield tax base

      You divide your share in the basis for savings and investments (outcome step 3) by the capital yield tax base (outcome step 2) and multiply it by 100. Round off to 2 decimal points. This percentage is your share of the capital yield tax base.

    5. Calculate your income from savings and investments

      You multiply your taxable return (outcome step 1) by this percentage (outcome step 4). The result is your Box 3 income.

    6. Calculate how much tax you must pay in Box 3

      Multiply the tax rate for Box 3 in 2023 (32%) by the income from savings and investments (outcome step 5).

    Calculation examples

    • 2023 calculation example without a tax partner

      You have €150,000 in savings. You do not have a tax partner.

      Step 1: calculate the return per asset type

      Bank balances: €150,000 × 0.92% = €1,380

      The taxable return is €1,380

      Step 2: calculate your capital yield tax base

      Assets: €150,000

      Deductible debts: €0

      Assets: €150,000 - €0 = €150,000

      Step 3: calculate the basis for savings and investments

      You reduce your capital yield tax base (outcome step 2) by the tax-free allowance. That is your basis for savings and investments.

      The tax-free allowance in 2023 is €57,000.

      Basis for savings and investments: €150,000 - €57,000 = €93,000

      Step 4: calculate your share in the capital yield tax base

      You divide your share in the basis for savings and investments (outcome step 3) by your capital yield tax base (outcome step 2) and multiply the outcome by 100. Round off to 2 decimal points.

      €93,000 ÷ €150,000 × 100 = 62.00%

      Step 5: calculate your income from savings and investments

      The income from savings and investments is your taxable return (outcome step 1) multiplied by your capital yield tax base share percentage (outcome step 4).

      €1,380 × 62.00% = €855

      Step 6: calculate how much tax you must pay in Box 3

      Multiply the tax rate for Box 3 (32%) by the income from savings and investments (outcome step 5).

      32% × €855 = €273 tax.

    • 2023 calculation example with a tax partner

      You have €350,000 in savings. You have a tax partner.

      Step 1: calculate the return per asset type

      Bank balances: €350,000 × 0.92% = €3,220

      The taxable return is €3,220.

      Step 2: calculate your capital yield tax base

      Assets: €350,000

      Deductible debts: €0
      Assets: €350,000 - €0 = €350,000

      Step 3: calculate the basis for savings and investments

      You reduce your capital yield tax base (outcome step 2) by the tax-free allowance. That is the basis for savings and investments.

      The tax-free allowance in 2023 is €57,000 per person, making €114,000 for you and your tax partner together.

      Basis for savings and investments: €350,000 - €114,000 = €236,000.

      You may divide the basis for savings and investment between you and your tax partner. In this example, you and your tax partner each declare half of the basis for savings and investment, making €118,000 each.

      Step 4: calculate your share in the capital yield tax base

      You divide your basis for savings and investments (outcome step 3) by the capital yield tax base (outcome step 2). Multiply the outcome by 100. Round off to 2 decimal points.

      Your share: € 118,000 ÷ € 350,000 × 100 = 33.71%

      The outcome of this calculation is the same for your tax partner.

      Step 5: calculate your income from savings and investments

      The income from savings and investments is the taxable return (outcome step 1) multiplied by the capital yield tax base share percentage (outcome step 4).

      Your income from savings and investments: €3,220 × 33.71% = €1,085

      The income from savings and investments for your tax partner: €3,220 × 33.71% = €1,085

      Step 6: calculate how much tax you must pay in Box 3

      Multiply the tax rate for Box 3 in 2023 (32%) by the income from savings and investments (outcome step 5).
      32% × €1,085 = €347 tax.

      The outcome of this calculation is the same for your tax partner.

    • 2023 calculation example with tax partner and various types of assets

      You have a tax partner. You and your partner have the following assets and debts:

      • €100,000 in savings
      • investments with a value of €150,000
      • a debt of €50,000

      Step 1: calculate the return per asset type

      Bank balances: €100,000 × 0.92% = €920

      Investments and other assets: €150,000 × 6.17% = €9,255

      The return on the assets is a total of €10,175.

      The threshold will be deducted from the debt. The threshold is €3,400 per person, making €6,800 for you together.

      The deductible debt is: €50,000 - €6,800 = €43,200.

      The return on the deductible debts is: €43,200 × 2.46% = €1,063

      The taxable return is €10,175 - €1,063 = €9,112.

      Step 2: calculate your capital yield tax base

      Assets: €100,000 + €150,000 = €250,000

      Deductible debts: €43,200

      Capital yield tax base: €250,000 - €43,200 = €206,800

      Step 3: calculate the basis for savings and investments

      You reduce your capital yield tax base (outcome step 2) by the tax-free allowance. That is the basis for savings and investments.

      The tax-free allowance in 2023 is €57,000 per person, making €114,000 for you and your tax partner together.

      Basis for savings and investments: €206,800 - €114,000 = €92,800.

      You may divide the basis for savings and investment between you and your tax partner, as long as the total is 100%. In this example, you specify the entire basis for savings and investment yourself. So €92,800.

      Step 4: calculate your share in the capital yield tax base

      You divide your basis for savings and investments (outcome step 3) by the capital yield tax base (outcome step 2). Multiply the outcome by 100. Round off to 2 decimal points.

      Your share: 92,800 ÷ €206,800 × 100 = 44.87%

      Step 5: calculate your income from savings and investments

      The income from savings and investments is the taxable return (outcome step 1) multiplied by the capital yield tax base share percentage (outcome step 4).

      Income from savings and investments: €9,112 × 44.87% = €4,088

      Step 6: calculate how much tax you must pay in Box 3

      Multiply the tax rate for Box 3 in 2023 (32%) by the income from savings and investments (outcome step 5).

      32% × €4,088 = €1,308 tax.