SUMMARY
Vienna landlords can usually raise an existing rent by around 1% in the strongly price-regulated MRG sector and by up to roughly 3.3% for many market-priced leases with valid indexation clauses. A vacant market-priced apartment is a different story: the new asking rent can move much more sharply.
The biggest mistake is treating Vienna as if it had one rent cap. The legal regime of the apartment matters more than the citywide inflation number, and two otherwise similar homes can follow very different rent paths.
The 1% figure is unusually restrictive. Vienna’s Richtwert moved only from €6.67 to €6.74 per square metre, leaving landlords of many regulated apartments able to recover only a small fraction of the recent inflation shock through the main rent.
The 3.3% figure is not a permanent 3% ceiling. It comes from a formula that recognizes the first 3 percentage points of inflation in full and only half of inflation above that threshold, so the permitted percentage will change with inflation.
An indexation ceiling does not itself give a landlord the right to increase rent. The lease still needs a valid contractual or statutory mechanism, and its trigger dates, thresholds and other terms continue to matter.
The new system also makes increases less frequent. For many covered residential leases, ordinary inflation indexation is effectively being pushed into one annual adjustment rather than a series of CPI-triggered increases throughout the year.
Turnover is becoming much more important than annual indexation. A sitting tenant may be insulated by a 1% or 3.3% increase while a newly available apartment in the same neighbourhood can be advertised at a rent reflecting the much faster movement of current market prices.
Fixed-term renewals create another pressure point. Where the starting rent is not statutorily capped, the end of a lease can give the landlord far more room to reprice than several years of ordinary indexation would have produced.
The five-year minimum fixed term for many professional landlords partly offsets that effect. It delays how often an unrestricted apartment can return to a full rent negotiation, which can be more valuable to the tenant than a small reduction in one year’s indexation.
The tenant’s total housing bill can still rise faster than the headline rent cap. Betriebskosten sit outside the Hauptmietzins increase and can move separately, so a 1% rise in the regulated main rent does not guarantee a 1% rise in the amount ultimately paid each month.
The clearest divide in Vienna is therefore between people already inside protected contracts and people looking for a home. Existing rents are being held down hard, while advertised private rents have recently been rising at roughly 10% year on year.
For landlords, the practical lesson is that the legal structure of the lease now drives revenue growth almost as much as the apartment itself. For tenants, the valuable asset is increasingly not just the flat but the contract attached to it.
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How much rent can Vienna landlords actually raise now?
Why can one Vienna landlord raise rent by 1% while another can raise it by 3.3%?
Vienna landlords currently face different rent-increase limits because Austria’s new rent brake depends on the legal regime of the apartment.
For many price-regulated apartments under the full application of Austria’s Mietrechtsgesetz, or MRG, this year’s inflation-linked increase is effectively capped at 1%. Many private apartments without those statutory price ceilings instead fall under the broader formula introduced by the new Mieten-Wertsicherungsgesetz. Using the relevant inflation figure, that produces a maximum increase of about 3.3% this year where a valid contract allows full indexation.
Then there are cooperative apartments, subsidized housing and some tenancies outside the standard MRG framework, which follow different rules again.
Vienna makes this distinction unusually important because its rental stock mixes old regulated buildings, municipal housing, limited-profit cooperative housing and newer privately financed apartments. Two tenants living a few streets apart can therefore face completely different legal rent calculations.
The useful questions are quite concrete: does the full MRG apply, does the apartment have a statutory rent ceiling, does the contract contain a valid indexation clause, and are we talking about an existing lease or a newly negotiated rent?
| Vienna rental situation | Typical increase on existing rent now | Main constraint | Can a newly negotiated rent jump much more? |
|---|---|---|---|
| Price-regulated full-MRG apartment | Usually max. 1% | MRG ceiling + temporary brake | Usually still legally constrained |
| Market-priced MRG apartment | Up to about 3.3% | Contract + new indexation formula | Yes |
| Cooperative apartment | Separate calculation | WGG cost-based rules | Different regime |
| Subsidized apartment | Depends on subsidy rules | Funding legislation | Depends on scheme |
| Tenancy outside standard brake | Contract-specific | General legal rules | Potentially |
How much can a Vienna landlord raise a regulated rent right now?
A landlord raising an existing price-regulated Vienna rent can generally add only about 1% this year.
Austria froze the scheduled adjustment of several regulated rents in 2025. The next step was deliberately restricted as well: for relevant full-MRG tenancies, the legislation treats the previous year’s inflation as only 1% for the purpose of the 2026 increase.
Vienna’s official Richtwert therefore moved from €6.67 to €6.74 per square metre, according to Statistics Austria. That increase is almost exactly 1%.
For a tenant paying €700 in eligible Hauptmietzins, a 1% increase means roughly €7 extra per month. A €1,000 main rent rises by around €10. Even a €1,500 main rent gains only €15 a month from this year’s adjustment.
That is a sharp break from the inflation shock earlier in the decade, when repeated adjustments pushed regulated rents substantially higher over a relatively short period.
| Existing regulated Hauptmietzins | Maximum 1% increase | New Hauptmietzins | Extra per year |
|---|---|---|---|
| €500 | €5 | €505 | €60 |
| €700 | €7 | €707 | €84 |
| €1,000 | €10 | €1,010 | €120 |
| €1,500 | €15 | €1,515 | €180 |
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Does Vienna’s 1% rent cap cover every private apartment?
Vienna’s 1% rent cap covers only the strongly price-regulated part of the private rental market.
Classic apartments in older multi-unit buildings often fall under the full MRG. The Arbeiterkammer uses rental buildings constructed before July 1953 as a common example, while rented condominiums have a separate historical cutoff that generally reaches back to May 1945.
Many newer privately financed properties fall under only partial MRG application. Typical examples include non-subsidized rental buildings constructed after June 1953, newer condominiums and qualifying later additions such as certain attic conversions.
Those tenants still receive important MRG protections, particularly around termination. Their starting Hauptmietzins, however, is often free from the Richtwert ceiling.
The new indexation law reaches many of these market-priced leases too. A modern Vienna tenant can therefore have no statutory ceiling on the original rent while still benefiting from limits on how quickly that existing rent is indexed afterward.
Apartment age alone will not always settle the question, but it is often the fastest clue to which regime we need to investigate.
How much can a market-priced Vienna rent rise this year?
Many existing market-priced Vienna leases covered by the new law can rise by up to about 3.3% this year, assuming their contracts allow the full increase.
The calculation comes directly from Austria’s inflation-brake formula. Average inflation in 2025 was 3.6%. The first 3 percentage points can be recognized fully, while only half of the part above 3% counts.
So we get 3% + 0.3% = 3.3%.
Calling this a permanent “3% cap” would be wrong. If inflation were 4%, the permitted figure would be 3.5%. At 5%, it would be 4%. At 7%, it would be 5%.
The protected full-MRG segment gets an additional temporary restriction this year, which pushes many regulated increases down to 1%. On €1,000 of Hauptmietzins, full 3.6% inflation would add €36 a month, the general formula allows around €33, while the special regulated cap allows only around €10.
For tenants in the most protected part of Vienna’s market, most of the inflation-linked increase is therefore being blocked this year.
| Existing Hauptmietzins | Regulated increase at 1% | General formula at 3.3% | Monthly difference |
|---|---|---|---|
| €600 | €6.00 | €19.80 | €13.80 |
| €800 | €8.00 | €26.40 | €18.40 |
| €1,000 | €10.00 | €33.00 | €23.00 |
| €1,500 | €15.00 | €49.50 | €34.50 |
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Can a Vienna landlord raise rent without an indexation clause?
A Vienna landlord usually cannot impose an inflation increase on an existing contractual rent if there is no valid legal or contractual mechanism allowing it.
This is one of the most useful checks a tenant can make because the headline statutory percentages are ceilings. They do not automatically create an annual increase for every landlord.
Many Austrian leases contain a Wertsicherungsklausel linking the Hauptmietzins to the consumer price index. Others use a threshold, a specific adjustment schedule or another contractual mechanism.
If the clause allows an increase only after the CPI has moved by a certain amount, the landlord still has to respect that threshold. If the contract provides for adjustments every two years, the new law does not magically turn that into an annual right.
There has also been fresh attention around Austrian court decisions on indexation clauses. The Arbeiterkammer’s current guidance stresses that Wertsicherung clauses remain permissible in principle, while the validity of a particular clause has to be assessed individually. Recent Constitutional Court and Supreme Court decisions do not mean that every indexed Vienna rental contract has suddenly become invalid.
Before calculating 1%, 3.3% or anything else, the first job is to establish whether there is actually a valid basis for raising that rent.
Can Vienna landlords still increase rent several times a year?
For residential leases covered by the new indexation rules, ordinary inflation-linked rent increases are now generally limited to once per year.
The annual adjustment is tied to April at the earliest. A lease that previously envisaged an inflation increase in January cannot simply continue using that January schedule.
For apartments under the full MRG, the practical timing can be even later. The Arbeiterkammer’s legal view is that the notification rules in §16(9) MRG mean the first payable increase in 2026 can generally arrive in May.
Under older CPI clauses, different trigger thresholds could produce increases at different moments of the year. During a high-inflation period, that made adjustments feel frequent and unpredictable.
The new system is simpler for sitting tenants: one ordinary inflation adjustment per year, with the statutory ceiling applied at that point.
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Can a Vienna landlord save up missed rent increases and charge them later?
A Vienna landlord cannot simply accumulate every blocked inflation increase and then recover the whole gap whenever it becomes convenient.
Existing contracts still matter because their Wertsicherung clauses may specify particular dates or thresholds. The new legislation can delay an increase that the contract would otherwise have triggered.
The Arbeiterkammer gives a simple example: if the contract allows an adjustment in August 2026, the new rules can push implementation to April 2027. The permitted amount still has to respect the statutory calculation.
Older leases that have already undergone previous indexation require more care. The year of the last adjustment, the contractual reference index and the portion of inflation that can legally be counted can all affect the next increase.
Historical contract data matters here. A landlord cannot simply choose an old inflation reference point because it produces a bigger number.
How quickly can rent rise after signing a new Vienna lease?
A newly signed Vienna lease usually cannot receive a full inflation increase almost immediately after the tenant moves in.
For relevant contracts starting from 2026, the first adjustment depends on how many full months remain in the year after the contract is signed.
The Arbeiterkammer gives the example of a February lease and 4% annual inflation. The new formula first turns 4% inflation into a permitted 3.5%. Because ten full months remain after February, only 10/12 of that figure can feed into the first increase. The result is around 2.92%.
A June contract would use six full months. A September contract would use three.
A December contract gives the cleanest result. There are no full months left after the contract starts, so there is no first-year inflation component to pass through the following April. The tenant may have to wait until the next annual cycle before any meaningful indexation can occur.
The rule stops a landlord from agreeing a fresh market rent late in the year and then quickly layering a full annual inflation adjustment on top.
| Contract signed | Full months counted after signing | Share of first-year inflation available | Practical effect |
|---|---|---|---|
| February | 10 | 10/12 | Most of annual adjustment can count |
| June | 6 | 6/12 | Half can count |
| September | 3 | 3/12 | Only one quarter can count |
| December | 0 | 0/12 | No first-year inflation component |
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Can a Vienna landlord raise rent much more when a fixed lease ends?
Yes. Renewal can produce a much larger Vienna rent increase than ordinary annual indexation, especially where the apartment has no statutory starting-rent ceiling.
This is one of the biggest remaining ways for market rents to feed through.
The Arbeiterkammer confirms that when a fixed-term tenancy expires and both parties agree to extend it, the rent can be renegotiated independently of the normal annual inflation timetable.
A regulated apartment still has to respect whatever statutory Mietzinsobergrenze applies. A market-priced apartment can behave very differently. If the existing rent has been held back by several years of capped indexation while comparable asking rents have moved sharply higher, renewal gives the landlord a chance to close part of that gap.
Imagine an apartment whose existing rent has been rising around 3% a year while comparable listings have moved much faster. Annual indexation alone cannot recover the difference. Once a legally valid renewal negotiation arrives, the existing contract price loses much of its protective effect.
For investors, lease expiry has therefore become more important to revenue growth. For tenants, staying inside the same contract can be much more valuable than the annual percentage cap initially suggests.
Does Vienna’s new five-year lease rule make rent jumps less frequent?
For many professional landlords, the new five-year minimum fixed term should reduce how often they can bring a Vienna tenancy back to the negotiating table.
Relevant residential leases under full or partial MRG application now generally require a minimum five-year fixed term when the landlord qualifies as an entrepreneur. Previously, three-year contracts were common.
Private individuals who do not meet the legal definition of an entrepreneur can still fall under the shorter minimum.
The economic effect is pretty straightforward. A professional landlord who previously used three-year contracts could potentially renegotiate a market-priced rent around year three. Under a five-year contract, that opportunity is delayed by another two years.
That delay can outweigh a small difference in annual indexation. A 3.3% adjustment on an existing rent is incremental. A renewal in a tight market can reopen the whole price negotiation.
So some tenants now get longer protection from turnover repricing even though the rent itself is not permanently fixed.
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Can Vienna landlords charge any rent they want to a new tenant?
Many newer Vienna apartments can be offered at a freely negotiated market rent, while regulated Altbau apartments still face statutory limits.
That is why Vienna asking rents can rise much faster than rents paid by sitting tenants.
In the full MRG sector, the initial Hauptmietzins may be controlled through the Richtwert system, category rents or the legally defined “appropriate rent,” depending on the property.
The calculation can still vary substantially from one apartment to another because location, condition, configuration and other legally recognized characteristics can produce additions or deductions.
Many apartments under partial MRG application have much more freedom at the moment a new lease is signed. Their annual indexation can later be restricted by the new rent brake even though their starting rent was negotiated at market level.
ImmoScout24 measured Vienna advertised rents at €22.41 per square metre in the first quarter of 2026. Its subsequent city comparison covering the first months of the year put Vienna at €22.45 per square metre, around 10% higher than a year earlier.
Those are advertised gross rents rather than the Hauptmietzins of the average existing tenant, so the levels should not be compared mechanically. But the direction is clear: the price of a newly available apartment can move quickly while annual increases inside existing leases remain heavily constrained.
Does Vienna’s €6.74 Richtwert mean Altbau rent is capped at €6.74 per square metre?
No. Vienna’s €6.74 Richtwert is the starting point for many regulated rent calculations, and the final legal Hauptmietzins can sit above or below it.
Statistics Austria currently lists Vienna’s Richtwert at €6.74 per square metre, up from €6.67.
The statutory system compares the apartment with a defined reference dwelling. Legally permitted Zuschläge and Abschläge can then adjust the result for relevant features, including location, equipment and characteristics of the apartment.
A qualifying fixed-term tenancy can also require a 25% Befristungsabschlag.
That means a 70-square-metre apartment does not automatically have a maximum legal Hauptmietzins of €471.80 simply because 70 × €6.74 produces that number. It is only the base calculation before the legally relevant adjustments.
For our purposes, the movement in the Richtwert is more revealing than the raw level. The benchmark itself has risen only 1%, showing how tightly the regulated rent path is being held down this year.
| Vienna Richtwert calculation | Amount |
|---|---|
| Previous Richtwert | €6.67/m² |
| Current Richtwert | €6.74/m² |
| Increase | 1.0% |
| 70 m² at base value only | €471.80 |
| 100 m² at base value only | €674.00 |
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Does a fixed-term Vienna Altbau lease get an extra rent discount?
A qualifying fixed-term regulated Vienna lease generally requires a 25% reduction from the otherwise permissible Hauptmietzins.
That Befristungsabschlag can matter much more than the current 1% annual increase.
Suppose the legally calculated rent for a regulated apartment would otherwise be €800. Where the statutory 25% fixed-term discount applies, the permissible amount falls to €600.
A landlord cannot sidestep that reduction by focusing only on indexation. If the starting rent was already above the lawful ceiling, a small subsequent annual increase does not make the underlying rent correct.
The order of calculation therefore matters. First establish the legally permissible rent, including relevant additions, deductions and the fixed-term discount. Only after that do we assess any lawful indexation.
For tenants checking a surprisingly high Altbau rent, that underlying calculation can be worth far more than arguing over this year’s extra few euros.
Can a Vienna tenant’s monthly bill rise by more than 1% anyway?
Yes. A Vienna tenant can see the total monthly payment rise by more than 1% because the rent brake applies to the Hauptmietzins rather than every item on the housing bill.
Betriebskosten follow separate rules and can change independently.
The newest Betriebskostenspiegel from the Mietervereinigung Wien puts average 2024 net operating costs in the private Vienna rental buildings it examined at €2.57 per square metre per month, up 1.8% from €2.52 the year before. A 70-square-metre apartment therefore carried about €180 a month in net operating costs.
The composition is useful too. Annual building-insurance costs averaged €7.11 per square metre, cleaning €6.76, water and sewer charges €5.06, management €4.47 and refuse collection €3.11. Lift costs averaged €3.63 per square metre in buildings with a lift.
So a tenant whose regulated Hauptmietzins rises by only 1% can still receive a monthly payment request that rises faster once Betriebskosten change.
Recent history shows how volatile this part of the bill can be. The previous Mietervereinigung survey found Vienna operating costs jumped 6.4% in 2023 before the increase slowed to 1.8% in 2024.
The rent brake gives a very accurate answer to “how much can my main rent rise?” It gives a less complete answer to “how much more will I actually pay every month?”
| Vienna private-building operating costs | 2023 | 2024 | Change |
|---|---|---|---|
| Monthly net cost per m² | €2.52 | €2.57 | +1.8% |
| Approx. cost for 70 m² | €176 | €180 | +€4/month |
| Insurance per m²/year | €6.94 | €7.11 | +2.4% |
| Cleaning per m²/year | €6.57 | €6.76 | +2.9% |
| Management per m²/year | €4.35 | €4.47 | +2.8% |
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Can Vienna landlords get around the rent brake through extra fees?
Landlords in regulated Vienna buildings cannot freely move ordinary rent into a new fee category because the operating costs that can be passed to tenants are legally defined.
Under full MRG application, chargeable Betriebskosten can include items such as water, sewage, refuse collection, certain insurance costs, cleaning, common-area electricity, administration and lift expenses.
Repairs are treated differently. The cost of repairing the landlord’s building cannot simply be added to the Betriebskosten statement as though it were an ordinary running expense.
This deserves more scrutiny now that the Hauptmietzins itself has become harder to increase. The latest Mietervereinigung data also show that operating-cost disputes are common, and the association says many statements it checks contain errors.
Tenants in the full MRG sector can inspect the annual statement and underlying invoices, and disputed charges can be reviewed through Vienna’s housing dispute mechanisms.
Partial-MRG leases can leave more to the contract, so the precise wording matters there. Still, calling something a “fee” does not automatically make it legally chargeable.
Do Vienna cooperative and social-housing rents follow the same limits?
Vienna’s cooperative, subsidized and municipal housing sectors follow their own rent-setting rules, so the private-sector 1% and 3.3% headlines cannot simply be applied across the city.
Limited-profit cooperative housing is generally governed by the Wohnungsgemeinnützigkeitsgesetz, or WGG. Its rents are largely based on cost principles rather than the ordinary private-market indexation mechanism.
Subsidized buildings can have further restrictions linked to the financing scheme used to construct them.
Municipal housing also requires its own legal and contractual analysis.
This affects a huge share of Vienna’s tenants. The city’s housing model contains hundreds of thousands of municipal and limited-profit homes, which is one reason online private-market asking rents give such an incomplete picture of what Viennese households actually pay.
When someone says “Vienna rents are rising 10%,” they may be describing newly advertised private apartments. Someone whose rent can rise only 1% may be describing a regulated existing lease. Neither tells us much about a cooperative tenant whose rent is being calculated under the WGG.
| Vienna housing regime | Main pricing mechanism | Standard 1%/3.3% headline useful? | Main thing to check |
|---|---|---|---|
| Full-MRG private rent | Statutory rent rules | Yes | Rent category and indexation |
| Partial-MRG private rent | Market starting rent + capped indexation | Yes | Contract |
| Limited-profit cooperative | Cost-based WGG regime | Usually no | WGG calculation |
| Subsidized rental | Funding-specific rules | Sometimes | Subsidy conditions |
| Municipal housing | Public/contractual regime | Depends | Individual rent basis |
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Are Vienna landlords outside the MRG completely free to raise rent?
Some Vienna tenancies sit outside the standard MRG rent-brake framework, but landlords still have to follow the contract and whatever general legal rules apply.
The Arbeiterkammer identifies rented one- and two-family houses as one relevant category where the standard new protection can fall away. Certain subsidized arrangements also remain governed by separate legislation.
Special-purpose tenancies, including some temporary or holiday arrangements, can have different treatment too.
Calling an apartment simply “free market” can therefore be misleading. A modern apartment may have a freely negotiated starting rent while still being covered by the new indexation limits. Another tenancy may sit much further outside the MRG regime.
There are really three separate questions: is the initial rent capped, is later indexation capped, and which broader tenancy protections apply?
The answers can differ within the same contract.
Is Vienna’s rent brake actually keeping rents down now?
Vienna’s rent brake is keeping many sitting tenants’ rent increases extremely low, while rents on newly advertised apartments are still rising quickly.
The cleanest way to see it is to compare the direction of the two markets rather than pretend their price levels are directly comparable.
Inside a regulated existing lease, this year’s increase can be around 1%. Many existing market-priced MRG leases face a ceiling around 3.3%.
Meanwhile, ImmoScout24’s latest available Vienna city analysis found advertised gross rents around €22.45 per square metre, about 10% above the previous year.
That creates a large gap between the growth of newly offered rents and the increases available inside many existing contracts. On a €1,000 regulated Hauptmietzins, the annual adjustment may add only €10 a month. Someone searching for another apartment is entering a market where advertised prices have recently been growing at roughly ten times that percentage rate.
The datasets cover different housing mixes, so the exact percentage-point gap is not a formal like-for-like market index. The direction, though, is hard to miss.
A landlord with an occupied protected apartment can therefore feel heavily constrained at exactly the same time that prospective tenants feel Vienna is getting much more expensive.
More and more of the pressure is showing up at turnover and renewal rather than through big annual increases for sitting tenants.
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How much rent can Vienna landlords actually raise now?
For most existing Vienna leases, the realistic answer today is around 1% in the strongly price-regulated MRG sector and up to roughly 3.3% for many market-priced MRG leases with a valid indexation clause.
Those numbers cover annual increases inside existing contracts. They do not tell us what a newly available private apartment can be advertised for.
That distinction is decisive. Vienna’s regulated Richtwert moved from €6.67 to only €6.74 per square metre, while current private asking rents are around €22.4 per square metre and have recently been rising by roughly 10% year on year. The measures describe different parts of the market, but together they show where the pressure has moved.
Existing protected tenants currently have strong insulation from inflation. Market-priced sitting tenants receive a weaker version of the same protection through the 3%-plus-half-the-excess formula. Landlords regain much more room when an unrestricted apartment comes back to market or reaches a renewal point where a new rent can legally be negotiated.
Operating costs add another complication because they can rise separately from the Hauptmietzins.
So if a Vienna landlord tells an existing tenant that “rents have gone up 10% in the city,” that alone does not justify a 10% increase. For many sitting tenants, anything close to that would be far outside the current annual indexation limit.
A landlord renting a vacant market-priced apartment is in a very different position. That is where Vienna’s fast-rising asking rents can still feed through almost immediately.
Right now, the rent brake is powerful for people who already have the right contract. It offers much less protection to someone who has to find a new apartment.
OUR METHODOLOGY
This analysis tests how much a Vienna landlord can actually raise rent by separating the legal regimes that are often bundled together in broad claims about “Vienna rents.” We looked at the tenancy’s MRG status, statutory rent ceilings, contractual indexation rights, the timing of increases, renewal and turnover rules, and the difference between Hauptmietzins and the wider monthly housing bill.
We treated percentages such as 1% and 3.3% as the output of a legal and contractual calculation rather than universal Vienna rent-growth rates. Before applying either number, we checked whether the tenancy is price-regulated, whether the lease contains a valid mechanism for indexation, and whether the increase concerns an existing contract or a newly negotiated rent.
For the rules themselves, we prioritized Austria’s official legal database and parliamentary material, including the Mieten-Wertsicherungsgesetz §1, §2, §4, the Austrian Parliament’s legislative file, and the final parliamentary legislation text. We also used MRG §16 for rent ceilings, Richtwert rules and the fixed-term discount, MRG §29 for fixed-term tenancy rules, MRG §21 for Betriebskosten, and WGG §13 for limited-profit housing.
Official numerical anchors came from Statistics Austria’s Richtwert data, including Vienna’s €6.74 per square metre benchmark, and Statistics Austria’s 2025 CPI release, which recorded annual inflation of 3.6%. We used City of Vienna guidance on MRG application and its Altbau rent calculator and legal guidance to check how the statutory framework translates into individual apartments.
For practical application of the new rent brake, including timing, renewals and first-indexation examples, we relied heavily on the Arbeiterkammer’s 2026 Mietpreisbremse guidance and its rent-brake calculator. Recent litigation around Wertsicherung clauses was checked against the underlying Constitutional Court decision and the 2026 Supreme Court decision rather than treating individual headlines as rules applying automatically to every lease.
We kept existing rents and newly advertised rents analytically separate because they measure different populations and often different components of the monthly payment. Market behaviour was checked against ImmoScout24’s Q1 2026 Vienna rental analysis and its January-April 2026 city comparison. Operating costs were checked separately against the Mietervereinigung Wien’s 2026 Betriebskostenspiegel.
The numerical examples in the article are calculations illustrating the practical effect of the rules, not forecasts of future rents. The final conclusion comes from combining the legal ceilings, contractual mechanics, timing rules and current market evidence while keeping turnover pricing separate from increases inside an existing tenancy.
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