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In 2007, a detached house in the canton of Zurich cost CHF 780,000 at the median. In 2025 it was CHF 1,590,000.7 Anyone who bought then sees a gain of CHF 810,000 on paper. That figure never reaches the bank account as it is. First the bank takes back its mortgage, then the municipality levies property gains tax, and the notary and land registry charge fees. Only then is it clear what is left for the next home, for the children or for reserves. The calculator above shows exactly this figure, with your own details.
So which items belong in your calculation?
What counts towards your net proceeds?
The sale price is the first figure, not the last. In the canton of Zurich, up to five items come off it. The largest is often the mortgage: the bank is repaid directly from the proceeds. Then there is property gains tax (Grundstückgewinnsteuer), which your municipality levies on the gain.1
If a fixed-rate mortgage is still running, the bank usually charges an early repayment charge (Vorfälligkeitsentschädigung). The early repayment charge calculator shows roughly how much. An agent’s fee only applies if you have agreed one. For notarising the contract and the land register entry, the notary’s office charges 1 per mille of the value each, at least CHF 100.3 VAT is added to the notarisation. There has been no property transfer tax since 2005.5
What this means for you: plan with the amount that is left after all five items. Only this figure pays for your next home and your reserves.
Worked example
Example: detached house, owned for 18 years
Median prices in the canton of Zurich, plus a freely chosen mortgage and fees split in half, as the law provides. Your half of the fees first lowers the gain and then comes off the proceeds. The calculator above starts with the same figures.
- Sale price (median 2025)
- CHF 1,590,000
- Purchase price (median 2007)
- − CHF 780,000
- Notary and land registry, your half (counts as investment costs)
- − CHF 1,654
- Property gain
- CHF 808,346
- Property gains tax after 18 full years (44 per cent reduction)
- − CHF 175,133
- Mortgage (example)
- − CHF 400,000
- Notary and land registry, your half (paid from the proceeds)
- − CHF 1,654
- You keep
- CHF 1,013,213
Which costs lower the property gains tax?
Only the gain is taxed: sale price minus investment costs (Anlagekosten).1 These include your purchase price at the time and investments that improved the house lastingly, such as an extension or a converted attic. Ordinary maintenance does not count.
Customary agent’s commissions and the charges connected with the transfer of ownership also count, both when buying and when selling.1 This means the notary and land registry fees, as far as you bear them yourself. The City of Zurich’s tax return has separate lines for them.10 The calculator deducts both from the gain. Add costs from back then to the purchase price above.
An early repayment charge counts too, as the Federal Supreme Court decided in a Zurich case. The condition: you end the mortgage completely because of the sale, take out no new one in the process and pay the charge yourself.4 What this means for you: gather all your receipts now. Every documented franc lowers the taxable gain.
The calculator shows your figure on paper. Whether your sale price is realistic and which receipts lower your tax, we clarify in a free assessment.
Prefer to talk? +41 76 325 11 95 – you speak directly with Dominik Devaja.
Why does the ownership period matter so much?
In the canton of Zurich, the tax depends not only on the gain but also on how long you owned the house.1 The rate rises with the gain from 10 to 40 per cent. From 5 full years the tax is reduced by 5 per cent, then by 3 percentage points a year. From 20 full years it is halved.1
If you owned it briefly, you pay more: a 50 per cent surcharge under one year, 25 per cent under two years.1 This makes a big difference. A gain of CHF 810,000 costs CHF 250,720 in tax after 10 years. After 20 years it is CHF 156,700.
After an inheritance, the date of the inheritance does not count, but the earlier purchase, for example by your parents.1 Enter the date of that purchase above. What this means for you: if the next full anniversary falls shortly after your preferred date, a little patience can pay off.
To be honest
What does this calculator not cover?
The calculator covers the most common case: a privately owned house or flat in the canton of Zurich, sold without buying a replacement. If you then buy another owner-occupied home in Switzerland, the tax may be fully or partly deferred.8 The Zurich property gains tax calculator works this out with a replacement purchase.
If your purchase was more than 20 years ago, you may use the market value of 20 years ago instead of the purchase price.1 If needed, enter this value yourself in the purchase price field. Investments from before that are already included in this value, so do not enter them again.
The calculator counts the ownership period in whole calendar months, because the exact day is missing. If the day of sale falls earlier in the month than the day you bought, it is in fact one month less. If that lands exactly on an anniversary, a full year is missing: 3 percentage points less reduction, or for a short ownership period even a higher surcharge.1 Only your municipality’s tax assessment is binding.
What else do owners ask?
Does the calculator store my figures?
No. The calculator runs only in your browser. Your entries are neither stored nor sent to us.
Who pays the notary and land registry fees on a sale?
Is there a property transfer tax in the canton of Zurich?
No. The canton of Zurich has not levied a property transfer tax since 1 January 2005.5 Besides property gains tax, a sale incurs the fees for notarisation and the land register entry.
I will buy another home afterwards. Do I still pay tax?
Perhaps not straight away. If the proceeds go, as a rule within two years, into an owner-occupied replacement home in Switzerland, the tax is fully or partly deferred.8 The Zurich property gains tax calculator shows how much.
Is the tax the same in every Zurich municipality?
Yes. The rates are the same in all Zurich municipalities, with no municipal multiplier.1 What typically remains after tax in your municipality is shown in the Net Proceeds Report Canton of Zurich.
What does the assessment cost?
Nothing. The assessment and the first conversation are free and without obligation, even if selling turns out not to be the right answer.
What else fits your calculation?
- Calculator Canton of ZurichHow much property gains tax will I pay in the Canton of Zurich – and what is left net?
- Early repayment charge when sellingI am selling before my fixed-rate mortgage ends – what does it cost, and how can I avoid it?
- Net Proceeds Report Canton of Zurich 2026What remains in my municipality after property gains tax?
- Property valuation with net calculationWhat is my home worth – and what is left after tax and costs?
Sources
- Zurich Tax Act (LS 631.1), supplement 132, §§ 216–225 · in force since 1 April 2026
- Zurich Tax Manual ZStB 225.1 – property gains tax rates · retrieved 14 September 2026
- Zurich notary fee ordinance (LS 243), annex items 1.1.1 and 2.2.1 · as of 1 January 2024
- Federal Supreme Court, BGE 143 II 382 (judgment 2C_1148/2015) – early repayment charge as investment costs · judgment of 3 April 2017
- Notary offices of the Canton of Zurich – fee calculation for purchase contracts · retrieved 15 October 2026
- Notary offices of the Canton of Zurich – form «Vertragsangaben» (split of fees and expenses) · retrieved 15 October 2026
- Canton of Zurich, Statistical Office – property sales including median prices since 2007 (KTZH_00000077) · data as of 2025/Q4
- Zurich Tax Manual ZStB 216.3 – deferral on replacement purchase (basis today § 216 para. 3 lit. i Zurich tax law) · as of 1 February 2018
- Zurich Notaries Act (LS 242), § 29 – who bears the fees · supplement 095
- City of Zurich Tax Office – property gains tax return (investment costs, lines 2.b and 5) · retrieved 15 October 2026
General information without guarantee, not individual advice. The law, the tax assessment and advice from professionals for your situation are what count. Terms of use