Update 30 September 2026: on 29 September the cabinet proposed a lower tax-free amount for 2027 and a tax on gains from 2028. These are proposals that still have to become law.
Tax on personal savings and investments: the plan for 2028
The package leaves out any new measure for box 3, the Dutch tax on savings and investments, because the cabinet says its preferred change to the proposed system lacks broad support. The bill for a tax on actual returns is still pending. On 29 September 2026 the cabinet chose a new direction, under which gains on investments such as shares, bonds and options would be taxed from 2028 only when you sell them. The bill already did this from 2028 for real estate, such as a second home or a rented home, and other assets follow in 2030. The cabinet will amend the bill accordingly, and it still has to become law.
Under the Tax Plan 2027 proposal, as set out in the 2027 table of tax rates, the rate is 36% and the tax-free amount is €60,098 per person. On 29 September 2026 the cabinet proposed to lower the tax-free amount to €30,846 per person in 2027 and to raise the assumed return on investments from 6.37% to 7.87%, which still has to become law. On 2 October 2026 it said people with small savings and investments will be spared, with new box 3 proposals expected in October 2026. The rate applies only to the calculated return on the portfolio, and under the temporary system you may pay less tax if you can prove a lower actual return.
Compare scenarios under the temporary system and under a system based on actual returns, and keep records of income, changes in value, debts and property costs. Any transfer of wealth should rest on the rules in force today, because the 2028 rule is still an assumption.
Source: the cabinet covering letter.
Source: the 2027 table of tax rates (Fiscale sleuteltabel 2027).