Imputed Rental Value Switzerland 2026: Zurich Guide

Will the imputed rental value still apply in 2026? Yes. It was voted out of existence on 28 September 2025, but it stays in force until 1 January 2029. The Federal Council confirmed that date on 1 April 2026, so for the 2026, 2027 and 2028 tax years homeowners keep declaring it and keep claiming the matching deductions. In the canton of Zurich, separate 2026 valuation guidelines also change how the figure is worked out.

This guide pulls the picture together: where things stand after the vote, how the imputed rental value is calculated in Zurich from 2026, which deductions you can still claim, and what actually changes from 2029.

What is the imputed rental value

The imputed rental value (Eigenmietwert in German) is a notional income that anyone who owns property in Switzerland has to add to their tax return. The reasoning is simple: by living in your own home, the tax authority assumes you are saving the rent you would otherwise pay to a third-party landlord. That "saving" is then taxed as if it were income.

The idea dates back to 1934, when the Confederation introduced the federal crisis levy during the Great Depression. What started as an emergency measure became a permanent rule, with constitutional anchoring in 1958. Every attempt to abolish it since had been rejected by Parliament or at the ballot box. Until 2025.

Why it exists

The logic of the system rests on equal treatment between tenants and homeowners. A tenant pays rent out of already-taxed income and cannot deduct it. A homeowner without an imputed rental value would, by contrast, enjoy free use of their property and still be able to deduct mortgage interest and maintenance costs: a double tax advantage.

The imputed rental value rebalances that. In exchange for the notional income, the state grants deductions for:

• mortgage interest paid to the banks;
• actual maintenance costs (repairs, refurbishments, building insurance);
• spending on energy-efficiency upgrades.

The system makes sense on paper. In practice it penalises owners who have paid down their mortgage and those who own a property that has appreciated sharply, where the imputed rental value rises while the deductions shrink. That is precisely why the abolition debate ran for decades.

What happened on 28 September 2025

On 28 September 2025 the Swiss electorate voted on the change of system in the taxation of owner-occupied property. The result: 57.7% in favour, 42.3% against. Yes to abolishing the imputed rental value, yes to the full overhaul of the system.

A few months earlier, on 20 December 2024, Parliament had approved the federal decree after years of work. The popular vote was the final hurdle. On 1 April 2026 the Federal Council set the date of entry into force at 1 January 2029. The later start (rather than 2028) gives the cantons time to introduce, in parallel, the new object tax on second homes that Parliament tied to the reform.

Milestone	Date	Status
Parliamentary approval	20 December 2024	Completed
Popular vote	28 September 2025	57.7% yes
Federal Council sets entry into force	1 April 2026	Completed
Cantonal implementation (object tax, etc.)	2026-2028	In progress
Entry into force	1 January 2029	Confirmed

Source: Federal Department of Finance (FDF) and the Federal Council media release of 1 April 2026.

What will actually change

The model that was approved is asymmetric, and that is the point most articles miss. It is not only the imputed rental value that disappears: the main deductions that today balance it out also fall away.

Aspect	Today (until 31.12.2028)	From 1 January 2029
Imputed rental value taxed	Yes	No (owner-occupied primary home)
Mortgage interest deduction (primary residence)	Unlimited	Largely removed; deductible only in proportion to rented/leased property value, plus a limited first-buyer deduction
Maintenance cost deduction	Yes (actual or flat-rate)	Abolished at federal, cantonal and communal level
Second homes	Imputed rental value applies	Cantons may levy an object tax (Objektsteuer)

Put plainly: anyone with a high mortgage paying lots of interest could end up worse off, because they lose the deduction that today offsets the imputed rental value. Anyone with a debt-free, or near debt-free, property comes out clearly ahead. First-time buyers get a time- and amount-limited deduction for their debt interest to soften the entry into ownership. The reform is designed to point in that direction, and the political debate reflects that tension.

The 2026 guidelines in the canton of Zurich

While the Confederation moves on a long timeline, the canton of Zurich updated its own valuation guidelines for properties from 2026. These are strictly cantonal rules, applicable to cantonal and communal taxes, but they have an immediate effect on Zurich homeowners' wallets, because the previous figures dated back to the 2009 assessment.

The update mainly concerns:

• the fiscal revaluation of properties, bringing tax values closer to the legal benchmark of 70% of market value;
• the integration of municipality-specific conditions into the valuation;
• a more accurate assessment of the actual condition of buildings, in particular older ones.

Importantly, there is no across-the-board increase in the imputed rental value. Properties valued before 2026 keep their existing imputed rental value from the 2009 guidance, while properties newly valued from 2026 have a flat reduction applied to the imputed rental value ahead of the 2029 abolition. For the precise details, the official communications from the canton of Zurich are the authoritative source.

How the imputed rental value is calculated

In Zurich the calculation follows a formula that is easy to grasp:

Annual imputed rental value = Tax value x Derivation rate

What changed for 2026 is the rate. The old uniform figures (3.5% for single-family houses, 4.25% for condominiums) have been replaced by per-municipality derivation rates: single-family houses now sit in a band of roughly 1.7% to 3.5%, and condominiums (PPP) in a band of roughly 1.7% to 4.2%, depending on the municipality. The exact rate for your commune is set out in the appendix to the cantonal directive, so the local figure is what counts.

Worked examples

The table below shows how the same tax value produces very different results at the bottom and top of the new rate band. Treat these as illustrative ranges, not a quote for your property.

Type of property	Tax value (example)	Annual imputed rental value (rate band)	Per month
Single-family house (low-rate commune)	CHF 1'200'000	CHF 20'400 (at 1.7%)	CHF 1'700
Single-family house (high-rate commune)	CHF 1'200'000	CHF 42'000 (at 3.5%)	CHF 3'500
Condominium (low-rate commune)	CHF 800'000	CHF 13'600 (at 1.7%)	CHF 1'133
Condominium (high-rate commune)	CHF 800'000	CHF 33'600 (at 4.2%)	CHF 2'800

These are indicative figures. The tax value of your own property is set out in your tax assessment notice and varies according to location, year of construction, fittings and the municipal derivation rate.

At federal level, the Federal Tribunal has set an important benchmark: the imputed rental value cannot fall below 60% of the comparable market rent, and the tax value must reach at least 70% of market value. Below those lines, a series of avoidance practices have been blocked over the years by case law.

The three cantonal methods

If you own properties in more than one canton, it is worth knowing that the calculation is not uniform. Switzerland uses three broad approaches:

Method	Cantons	Logic
Reference rent	AI, AR, GL, GR, LU, SG, SH, SZ, TI, UR, VS	Comparison with market rents
Hedonic model	AG, BE, FR, JU, NW, OW, TG	Multi-factor statistical estimate
Cantonal proprietary method	BL, BS, GE, NE, SO, VD, ZG, ZH	Bespoke cantonal rules

Zurich falls into the third group: the tax value x derivation rate formula is its specific approach.

Deductions for homeowners

Deductions are where the real game is played. This is where careful planning saves homeowners thousands of francs.

What you can deduct today

Item	What it includes	Limit
Mortgage interest	Interest paid on the mortgage	Unlimited
Actual maintenance costs	Repairs, replacements, building insurance	Actual spend
Flat-rate maintenance costs	Alternative to the actual method	10% of the imputed rental value (buildings under 10 years) or 20% (over 10 years)
Energy-efficiency upgrades	Insulation, heating, photovoltaic	Carry-forward up to two subsequent years if it exceeds the threshold
Administrative expenses	For PPP properties, management costs	Actual

Each year you can choose between the actual method and the flat rate. There is no lock-in: in a year with little work done, take the flat rate; in the year of a major refurbishment, switch to the actual method. Keep invoices and receipts for at least ten years.

Flat rate or actual: how to decide

Method	Advantage	Drawback	When it makes sense
Flat rate	Zero paperwork, no receipts	Often lower than reality	Years with few expenses
Actual	Maximises the deduction	Requires full documentation	Years of refurbishment or significant repairs

The practical rule: if the total documented costs exceed the flat rate, choose the actual method. Otherwise the flat rate saves time without costing you money.

Tax-planning ideas

Two timeframes need separating here: the moves that make sense now, up to 2028, and those aimed at preparing for the post-2029 regime. The points below are general information, not personal tax advice.

1. Concentrate maintenance in high-income years

If you know you will have to replace the boiler, redo the bathroom or change the windows, think about timing. Doing the work in a year with high taxable income tends to maximise the tax benefit, because the deduction pulls you down a tax bracket. After 2029 the ordinary maintenance deduction disappears, so the window to use it closes at the end of 2028.

2. Structure the mortgage

A high mortgage today gives you a sizeable interest deduction. After 2029 that deduction is largely removed for the primary residence. If your mortgage matures in the next few years, it makes sense to compare conditions carefully and to consider the structure best suited to the new tax regime.

3. Indirect amortisation via pillar 3a

Instead of paying down the mortgage directly, you pay the same amount into pillar 3a. Twin advantage: the contribution is deductible, and later you can use the 3a capital to clear the mortgage at retirement. We covered this in detail in our piece on the pillar 3a catch-up 2026.

4. Stage major energy-efficiency works

Energy-efficiency works (insulation, heat pump, photovoltaic) are fully deductible, and the carry-forward over two subsequent years lets you spread large outlays across several tax periods. If you are planning a full refurbishment, splitting it into two or three phases is often more advantageous than doing it all in one go.

5. Think about post-2029

From 2029 the maintenance-cost deduction is abolished and the mortgage-interest deduction for the primary residence is largely removed. If you have major value-preserving work in the pipeline, weigh up bringing it forward to the 2026-2028 window, while you can still claim the current deductions. Whether to keep a SARON or a fixed mortgage into the new regime is its own decision: we compared the two in SARON or fixed mortgage in 2026.

Transition period 2026-2028

Between now and 1 January 2029 nothing changes for the annual calculation: the imputed rental value is taxed and the deductions apply. But your planning should already be factoring in the change of regime. Three practical points:

1. Document every expense, even those paid in advance. You will need them for your 2026, 2027 and 2028 returns.
2. Check the tax value of your property on the assessment notice. If you believe it has been overvalued, lodging an objection is still worthwhile while the current system remains in force.
3. Plan the mortgage with one eye on 2029. The optimal structure for today's regime may not be the right one for what comes next.

FAQ

When will the imputed rental value be abolished?

The Swiss electorate approved its abolition on 28 September 2025 with 57.7% in favour. On 1 April 2026 the Federal Council set the entry into force at 1 January 2029. Until then, the current rules continue to apply.

Do I still have to declare the imputed rental value in the 2026 tax return?

Yes. Until 31 December 2028 the current rules apply. For the 2026, 2027 and 2028 tax returns the imputed rental value still has to be declared and the existing deductions remain valid.

How do I find out the imputed rental value of my property?

It is shown on your cantonal tax assessment notice. If you cannot locate it, contact your cantonal tax office. In Zurich, that is the Steueramt.

Can I challenge the imputed rental value if I think it is too high?

Yes. You file an objection within 30 days of receiving the assessment notice. The most common grounds are lower comparable market rents, a poorer state of repair than assessed, or fittings below those estimated.

What changes for second homes after 2029?

The imputed rental value for owner-occupied primary homes disappears, but cantons gain the option to levy an object tax (Objektsteuer) on second homes to compensate for the lost revenue. Holiday homes may therefore still carry a tax charge, depending on the canton.

What if the property is temporarily vacant?

If the property is genuinely and durably vacant (not simply unused for personal reasons), you can apply for a reduction in the imputed rental value. Practice varies from canton to canton, and for second homes used only a few weeks a year the full imputed rental value still applies.

Do I have to pay social contributions (AHV) on the imputed rental value?

No. The imputed rental value counts only as taxable income for income tax purposes. It is not subject to AHV, IV or other social contributions.

What happens if I sell the property in 2027?

The tax regime in force at the time of sale applies. For 2027 that means the current system: a pro rata imputed rental value up to the sale date and the corresponding deductions.

Annual checklist for homeowners

To check before each tax return:

• Verify that the imputed rental value on the tax assessment notice is correct
• Work out whether the flat rate or the actual method is more advantageous for maintenance costs
• Collect all receipts for maintenance and energy-efficiency works carried out during the year
• Document energy-efficiency upgrades separately (carry-forward available)
• Enter mortgage interest correctly (year-end statement from the bank)
• In the case of major refurbishment: distinguish between value-preserving (deductible) and value-adding (non-deductible) works
• Keep all documentation for at least 10 years

What to do now: three concrete actions

If you are a homeowner in the canton of Zurich, here are three things worth doing in the coming weeks:

1. Pull out the latest tax assessment notice and check that the tax value of your property is still in line with the current market and the 2026 revaluation.
2. Compare your mortgage with the conditions currently available. If you are more than two years from the end of the term, ask for an analysis anyway.
3. Plan the energy-efficiency and maintenance works coming up over the next few years: from 2029 the ordinary maintenance deduction disappears, so it can pay to stage them while the deductions still exist.

Conclusion

The Swiss imputed rental value system is going through its biggest transformation in over sixty years. The popular decision of 28 September 2025, confirmed for 1 January 2029 by the Federal Council on 1 April 2026, settles a debate that had been running since 1999. Between 2026 and 2028 homeowners are playing a double game: maximising today's deductions and preparing the household budget for the 2029 regime, where it is not only the tax that vanishes but also the benefits.

For the canton of Zurich, the 2026 guidelines bring more accurate valuations, particularly on the actual condition of the building and on municipal differences. No across-the-board increases, but a steadier hand in case-by-case estimates.

For those who plan ahead, there is still room to manoeuvre. For those who put it off, the risk is to reach 2029 with a mortgage structured for a system that no longer exists.

Keep reading

• Pillar 3a catch-up 2026: new rules
• SARON or fixed mortgage in 2026?
• Individual taxation Switzerland 2026
• Vaud canton: tax reduction 2026
• Home-office tax deduction 2026