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What most people overlook: lost contracts or invoices need not be a drawback after over 20 years of ownership. The canton then allows a second starting value.
| What | Figure | Law |
|---|---|---|
| Tax rate on the gain | 30 per cent, the same across the canton | Art. 133 para. 1 |
| Exemption limit (Freigrenze) | Gains below CHF 3,000 are tax-free; from CHF 3,000 the whole gain counts | Art. 133 para. 5 |
| Surcharge for a short holding period | plus 5 to 50 per cent of the tax, under 4 years | Art. 133 para. 4 |
| Reduction for a long holding period | minus 2.5 per cent per full year over 10, at most 50 per cent | Art. 133 para. 2 |
| Value from 20 years ago instead of purchase price and older investments | optional if you bought more than 20 years ago; investments since then are added | Art. 131 para. 3 |
| Deadline for a new home | 3 years after or 1 year before the sale | Art. 52 Tax Ordinance |
How the canton calculates
How is property gains tax calculated in Appenzell Ausserrhoden?
Appenzell Ausserrhoden calculates property gains tax in four steps: gain, exemption limit, 30 per cent, holding period. Gain means sale price minus investment costs (Anlagekosten): purchase price plus improvements. Below the CHF 3,000 exemption limit (Freigrenze), it is tax-free; otherwise the whole gain counts. Rounded down to the nearest CHF 500, it is taxed at 30 per cent (Article 133, Tax Act, 2025 version).
You might expect: larger gain, higher rate. Not here: a CHF 80,000 gain costs CHF 24,000; CHF 450,000 costs CHF 135,000, both 30 per cent. Only the holding period adjusts it: under four years, the tax rises 5 to 50 per cent. From the 11th full year, it falls 2.5 per cent yearly, up to half.
What this means for you: Innerrhoden has its own law. If the house is there, calculate the tax for Appenzell Innerrhoden. Three figures mainly decide your tax in Ausserrhoden: investment costs, holding period, sale price. The first two are in your papers.
The third figure is missing: what a buyer would pay today for your house or your parents'. The net calculation shows in writing what you keep after tax, mortgage repayment and selling costs – before you sign.
What lowers the gain
Which costs lower property gains tax in Appenzell Ausserrhoden?
Property gains tax in Appenzell Ausserrhoden falls with every documented investment that adds value, and with selling costs. An extension, listings and a customary agent's commission count; upkeep like repainting does not. After an inheritance, your parents' purchase price and years of ownership usually count. See selling an inherited house.
And if the purchase contract or invoices are missing? If you bought over 20 years ago, you may use the official market value (amtlicher Verkehrswert) from 20 years ago. It replaces purchase price and older investments; later investments are added. The canton's official guide (Wegleitung, in German) calls this «generally more advantageous» than patchy records (section 4.3, 2022 edition).
What this means for you: find the purchase contract and builders' invoices, or ask your parents. The land registry office (Grundbuchamt), which records who owns property, can tell you that value. After 21 years of ownership, the calculator has a field for it. Enter it and the calculator works out both routes, using the cheaper one.
Worked example
Example: a CHF 300,000 gain after 32 years of ownership.
A house bought in 1990 for CHF 200,000 sells after 32 full years for CHF 500,000, without investments or selling costs. The example uses the original purchase price. The calculator above shows, with your figures, whether the value from 20 years ago would be cheaper.
- Sale price
- CHF 500,000
- Purchase price 1990 (investment costs)
- − CHF 200,000
- Property gain, already rounded down to the nearest CHF 500
- CHF 300,000
- Tax at 30 per cent
- CHF 90,000
- Reduction for 32 full years: 22 × 2.5 = 55 per cent, capped at 50 per cent
- − CHF 45,000
- Property gains tax
- CHF 45,000
New home
Does buying a new home defer property gains tax in Appenzell Ausserrhoden?
Yes, but Appenzell Ausserrhoden defers property gains tax only as far as the proceeds fund a new home in Switzerland. The law calls this a replacement purchase (Ersatzbeschaffung); houses and flats are treated alike. Condition: you live in both homes yourself, permanently and exclusively, the old one usually for at least a year. Deadline: three years after or one year before the sale (Article 52, Tax Ordinance, 2024 version).
A new home does not mean no tax. Official example: CHF 500,000 proceeds, CHF 400,000 investment costs, new home CHF 430,000. The CHF 70,000 not reinvested is taxed at once. Full deferral needs a new home costing at least the proceeds.
What this means for you: buying after the sale means paying the tax first. You apply for the deferral within 90 days of buying and moving in. If you move somewhere cheaper, the calculator above shows the taxable part and what remains. The six-question home check helps if you are unsure where to go.
To be honest
When is waiting or keeping the house better in Appenzell Ausserrhoden?
An early sale costs money. If you have owned the house for less than four years, you pay 5 to 50 per cent more tax. A CHF 60,000 gain after seven months then costs CHF 24,300 instead of CHF 18,000. If you bought only recently, keeping the house is often the better choice.
With a long holding period, every full year from the eleventh counts: the reduction grows by 2.5 per cent. On a CHF 450,000 gain, it already comes to CHF 6,750 after 12 full years. After 30 full years, waiting no longer lowers this tax. Before that, it can pay off if you are only months away from the next full year.
Appenzell Ausserrhoden property gains tax: what do owners ask most often?
Is there an official property gains tax calculator for Appenzell Ausserrhoden?
Yes, the Cantonal Tax Administration (Kantonale Steuerverwaltung) offers its own calculator. The Immosmile calculator uses the same formula (Article 133, Tax Act) and matches the test cases run on the official calculator to the franc. It also deducts selling costs and the mortgage, shows the net proceeds and allows for a new home. After 21 years of ownership, it also accepts the value from 20 years ago, which the official one lacks.
Is there a tax-free allowance for property gains tax in Appenzell Ausserrhoden?
No, Appenzell Ausserrhoden has an exemption limit (Freigrenze), not an allowance (Freibetrag). Gains below CHF 3,000 are tax-free. From CHF 3,000, the whole gain is taxed, not just the part above it. It is rounded down to the nearest CHF 500 (Article 133, paragraph 5, Tax Act).
When do I have to file the property gains tax return in Appenzell Ausserrhoden?
Within 30 days, according to the official guide (section 1.5). The property gains tax return goes to the Cantonal Tax Administration in Herisau, not to the municipality. That office also makes the assessment (Veranlagung), meaning it sets the tax officially. If you are unsure when the deadline starts in your case, ask them directly.
Is there a transfer tax when selling a house in Appenzell Ausserrhoden?
Yes, the municipality levies transfer tax (Handänderungssteuer), a tax on the change of owner: 2 per cent of the price. If the price is below the assessed value, that value counts; municipalities may charge less, and the rate halves from parents to children. The contract decides who pays; by default, half each. Your share lowers the taxable gain as a cost (Articles 129, 236, 238, Tax Act; Article 70, Tax Ordinance).
Is the calculator for Appenzell Ausserrhoden as accurate as a tax assessment?
No, the result is an estimate, not a tax assessment; only the Cantonal Tax Administration's assessment is binding. The Immosmile calculator matches the test cases run on the official calculator to the franc. But it counts full years, while the canton counts full calendar months. With the value from 20 years ago, it also deducts selling costs, which the law leaves open; your tax may then be higher.
Does the calculator for Appenzell Ausserrhoden store my inputs?
No, your browser does the calculation, and your figures are not sent to Immosmile. So you can work it out calmly, for your parents too. You only get a valuation if you request one yourself.
Sources
- Tax Act of Appenzell Ausserrhoden (Steuergesetz, bGS 621.11) · In German; version of 1 January 2025, rates unchanged since 1 January 2019, checked on 29 September 2026
- Tax Ordinance of Appenzell Ausserrhoden (Steuerverordnung, bGS 621.111) · In German; as of 1 January 2024, checked on 29 September 2026
- Guide to the property gains tax return (Wegleitung), Cantonal Tax Administration of Appenzell Ausserrhoden · In German; 8th edition, valid from 1 January 2022, checked on 29 September 2026
- Official property gains tax calculator, Cantonal Tax Administration of Appenzell Ausserrhoden · In German; test cases recalculated on 29 September 2026
General information, not individual advice. The law, the tax assessment and advice from professionals for your situation are what count.
