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Property tax reform 2022: What owners have to do now

Breaking News: The deadline for filing property tax returns has been extended! The property tax return must now be submitted by January 31, 2023.[a]

The German government has revised the calculation of property tax. As a result, all owners of land or real estate must submit electronically completed declarations of assessment. But what exactly are the rules and what values must owners declare?

The assessed values which were last determined in 1964 (in West Germany) and 1935 (in East Germany) form the basis of the calculation of the current property tax.[1]. With its ruling on 10 April 2018,[2] the Federal Constitutional Court gave the federal government a deadline of the end of 2019 to change the regulation of these values.

1st January 2022 was chosen as the reference date for re-evaluating the approximately 36 million real estate units (plots of land / properties) to be calculated. For the calculation of the new property tax, all owners were requested via a public announcement to submit a so-called declarative statement by 31 October 2022 at the latest.

There is no requirement for a separate request by the tax authority.[3]. The announcement can be found on Berlin’s website (www.berlin.de) 

Currently, forms for a declarative statement are not available. From 1 July 2022, it should be possible to submit a declarative statement. This should be submitted electronically through a portal, such as  “Elster.de” For submission or use of a portal, registration is required. This can take a few weeks, so registration should be initiated in plenty of time, if this has not yet been completed.

In the Property Tax Reform Act, the federal model was specified. However, the legislature also incorporated a state flexibility clause, allowing the federal states to use their own guidelines. Berlin and Brandenburg have chosen to use the federal model.[4].

The federal model, and therefore the relevant model for Berlin and Brandenburg, stipulates the following regulations. As before, the property tax is calculated in three steps.

  1. Step: Calculation of the property values – key factors are the value of the ground (land value) and the level of the statistically determined net rent (excluding added costs such as heating), which depends, among other aspects, on the so-called rent-level standard (“Mietniveaustufe”) of the town/district in question (the higher the rent-level standard, the higher the rent in a district tends to be).
  2. Step: Adjustment for increases in value which have taken place in comparison to the current values, which have not been updated since 1935 or 1964.
  3. Step: Modification of assessment rates by local authorities: if, in individual districts, the revenue from property tax does change due to the re-evaluation, the local authorities may adjust their assessment rates.[5].

But which values must I as a property owner provide for the calculation of property tax?

Initially, general information is required. Here, you must provide the following information.

  • Tax number
  • Local tax office
  • Location of the plot of land (street and house number)
  • Land-register sheet (optional)
  • Lot number
  • Area of the plot of land
  • Proportion of co-ownership[6]

Further information must be provided regarding the plot of land. Here, the following information must be collected.

  • Property Size
  • Building space
  • Building age
  • Type of use
  • Standard land value

But where can I find this information?

You can find your tax number and your local tax office in previous documents / notices from the tax office.

You can request the standard land value for free from the Boris Berlin portal. For this, only the address of the relevant unit is required. Boris Brandenburg can be used to find values in Brandenburg.

The purchase contract, the declaration of division or the land-register sheet will provide the remaining information necessary to prepare the declarative statement.

If you need tax advice, please contact your tax advisors, as only they are permitted to provide this advice.

If you need help to collect this information, your property-management company can help you. They should have access to all the information required.

If you are struggling to source individual values, we are happy to explain where you can find this information.

We always aim to advise and inform our customers as best as possible. The ADEN Immobilien team is happy to help you with any questions related to your property.

Yours faithfully,

Your Lars Drewes

Head of Sales

ADEN Immobilien – Your estate agent for Berlin and Paris

Legal note: This article does not constitute tax or legal advice in individual cases. Please have the facts of your specific individual case clarified by a lawyer and/or tax advisor.

Photo ©  chris77ho (Christian Horz) / Depositphotos.com

[a] https://www.bundesfinanzministerium.de/Web/EN/Home/home.html

[1] https://de.wikipedia.org/wiki/Einheitswert

[2] https://www.bundesverfassungsgericht.de/SharedDocs/Entscheidungen/DE/2018/04/ls20180410_1bvl001114.htm

[3] https://www.berlin.de/grundsteuer/berlin/artikel.1182343.php

[4] https://www.haufe.de/thema/grundsteuerreform/

[5] https://www.haufe.de/thema/grundsteuerreform/

[6] https://www.berlin.de/grundsteuer/

Berlin Real Estate Market 2025 – Market, Regulation and Legal Framework Overview

In the first half of 2025, the Berlin real estate market recorded a marked increase in transaction activity. The Expert Committee for Property Values in Berlin (Gutachterausschuss) registered 10,864 purchase transactions, representing an increase of 16 percent compared with the same period of the previous year. Transaction volume rose by 13 percent to a total of EUR 6.9 billion [1]. Price developments varied by asset class. Condominium prices increased on average by 4 percent. New-build apartments recorded a nominal price increase of 12 percent. This figure was significantly influenced by micro-apartments; excluding this special segment, the price increase for new-build apartments was also 4 percent [1]. In the segment of residential rental buildings, the number of transactions rose by 12 percent, while prices increased by 6 percent [1]. Alongside the market recovery, key regulatory instruments were extended. In June 2025, the German Bundestag approved the nationwide extension of the rent cap (Mietpreisbremse) until 31 December 2029; the Bundesrat gave its approval in July 2025 [2][10]. At the state level, the Berlin Senate extended the conversion regulation (Umwandlungsverordnung) by five years. It entered into force on 13 March 2025 and applies to 81 social preservation areas [3]. The property tax reform also came into effect on 1 January 2025. The State of Berlin set the assessment rate for property tax B at 470 percent [4]. On 11 July 2025, the Expert Committee published the 2025 cost value factors (Sachwertfaktoren), based on an analysis of 3,297 purchase transactions from 2022 to 2024 [5]. In addition, the Berlin Senate issued a rent limitation ordinance in April 2025, ensuring the application of the rent cap from 1 June to 31 December 2025 [6].

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