Senate puts brakes on box 3
Senators want greater clarity first on changes to wealth taxation.
The Senate is putting off a final decision on the new box 3 levy for the time being. The Finance Committee will first discuss a letter from the cabinet on progress with and changes to the system.
The issue is the Act on Actual Returns in Box 3, which is intended to tax income from assets in a way that is closer to the actual return achieved. The bill has been before the Senate for some time. Its consideration is complicated because the cabinet is simultaneously working on additional changes and possible alternatives.
The Senate Finance Committee has the letter from the Minister and State Secretary for Finance on its agenda for Tuesday. The public file states that the letter concerns progress with changes to the box 3 system. A new substantive vote on the bill is therefore not on the agenda during this committee consideration.
The current system uses notional returns: the Tax and Customs Administration calculates assumed proceeds, even when the actual return is lower. The Senate describes the system as one in which the starting point is not the actual return, but a set percentage. That difference in particular has led to legal proceedings and political debate.
During the plenary consideration in June, criticism came from various quarters. Some senators consider the proposal insufficiently worked out and fear implementation problems. Other groups stress that taxing actual returns is necessary to prevent new legal problems and to bring the system more closely into line with economic reality.
The cabinet previously said it wanted to provide clarity about the way forward around Prinsjesdag. Prime Minister Jetten said at the time that the Senate sets its own agenda, but that the cabinet wanted to persuade senators with new proposals. It therefore remains unclear whether the bill will proceed in its current form, be amended or make way for another system.
For taxpayers, the delay mainly means that uncertainty remains. The new law is not simply off the table, but it is not ready for implementation either. The Senate must still assess whether the proposed levy is workable, legally sound and backed by sufficient political support.
One story, several perspectives
What is established
- The Senate is considering a bill for a new box 3 system.
- The Senate is discussing additional information from the cabinet before the procedure moves forward.
- The current notional system and the feasibility of alternatives are the subject of political and legal debate.
Left
Arguments Taxation of wealth should be fairer and better reflect actual returns. People who achieve little return should not be taxed as though they had made large profits.
Values Ability to pay, equality before the law and protection of small savers.
Consequences A carefully designed system could restore confidence in taxation, but a lengthy transition would perpetuate unequal treatment under the law and uncertainty.
Centre
Arguments The law must be legally sound and workable before it is introduced. Delaying it is defensible if the cabinet first clarifies its consequences for citizens, the Tax and Customs Administration and the budget.
Values Care, workability and institutional reliability.
Consequences More preparation reduces the risk of new remedial operations, but extends the period in which taxpayers do not know where they stand.
Right
Arguments The government should exercise restraint in taxing accumulated wealth and should not introduce a system that attributes fictitious returns to asset owners. A simpler capital gains tax would be preferable.
Values Property, predictability and limiting government power.
Consequences A more restrained levy could make saving and investment more attractive, but could reduce government revenues and increase pressure on other tax bases.
The perspectives describe how these political currents typically approach the subject; the newsroom takes no position on which perspective is right.
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The text describes the procedural state of affairs and makes no further claim about a definitive withdrawal. The legal and political background can be found in official parliamentary documents and cabinet information.
- confirmed The Senate Finance Committee will discuss a cabinet letter on progress with box 3 on 22 September. — This is stated in the Senate’s official bill file. source
- confirmed The bill provides for taxation of actual returns on assets and liabilities. — The title and description of Bill 36.748 state this. source
- confirmed Prime Minister Jetten said that the cabinet would provide the Senate with further information around Prinsjesdag. — This is stated in the verbatim report of the Council of Ministers’ press conference. source
Editor's note
The public file confirms the discussion of the cabinet letter and the continuing procedural uncertainty. A formal decision using the exact wording ‘put on hold’ does not appear as a separate vote in the file consulted.Sources
- Wet werkelijk rendement box 3 — Eerste Kamer der Staten-Generaal
- Brief over voortgang aanpassing box 3-stelsel — Eerste Kamer der Staten-Generaal
- Persconferentie na ministerraad 4 september 2026 — Rijksoverheid
- Voortzetting behandeling Wet werkelijk rendement box 3 — Eerste Kamer der Staten-Generaal
More on this in Dutch media
- de Volkskrant — „box 3”
- RTL Nieuws — „box 3”
- NOS — „box 3”