Germany: Retroactive changes to RETT rules to apply from 2009

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Germany: Retroactive changes to RETT rules to apply from 2009

linn.jpg

braun.jpg

Alexander Linn


Thorsten Braun

On July 17 2015, Germany's Constitutional Court made public a decision, dated June 23, in which the court held that the 'secondary tax base' or 'special tax value' used in the calculation of the value of real property for German real estate transfer tax (RETT) purposes is unconstitutional. The secondary tax base is used as an alternative method of calculating the value of real property in cases where real property is not purchased directly, such as the direct or indirect transfer of shares in real estate holding entities, mergers, and so on. The secondary tax base generally results in values that are far lower than the fair market value of the real property, in many cases only reflecting 50% or less of the fair value of the property. The secondary tax base is calculated based on the actual annual rent or an alternative customary rent combined with certain multipliers and adjustments or, if rent is not available, on tax book values for land and buildings with relevant adjustments.

The court held that the calculation of RETT based on the secondary tax base violates the equality principle in article 3 of the German constitution because it deviates significantly and unintentionally from the market value of the real property. The court decided that the current version of the law cannot apply as from January 1 2009, and that parliament has until June 30 2016 to enact a new law that applies retroactively from January 1 2009.

The change in the law is expected to result in an increased RETT base closer to the fair market value used in direct purchases and, therefore, to an increased RETT in future transactions. Further, due to the retroactive effect of the decision, the new law could apply in cases where the RETT-triggering event already has occurred but the RETT base has not been finally assessed or where the RETT- triggering event has not been indicated or detected.

Alexander Linn (allinn@deloitte.de) and Thorsten Braun (tbraun@deloitte.de)

Deloitte

Tel: +49 89 29036 8558 and +49 69 75695 6444

more across site & shared bottom lb ros

More from across our site

The UK tax authority’s deputy director of large business also reassured taxpayers that HMRC will not ‘nitpick’ returns
Sucafina’s tax chief was speaking at the ITR Pillar 2 Forum in London alongside experts from HMRC and other organisations
India’s Supreme Court rattled cross‑border structuring with its Tiger Global ruling. Subsequent rule changes narrowed the impact, but significant risks around GAAR, substance and treaty access persist
The UK-based big four spin-off firm has hired Marc Lien, who declared that most AI in professional services today is ‘cosmetic’
Projected revenue losses and exemption requests are harming the project’s capability and viability
HMRC secured lengthy prison sentences in a major payroll VAT fraud case, while law firms announced tax promotions and hires
Significant changes include an update to profit markers and an alteration to how an ‘inbound distributor’ is defined
ITR sat down for a pre-event interview with Tim Zech, WTS Germany, and Jeff Soar, WTS UK, keynote speaker at next week’s ITR AI in Tax Forum 2026 in London
Brazil’s bid to seek US-style exemptions from pillar two is ‘highly advantageous’ for multinationals, ITR has also heard
India is signalling flexibility on expat taxation to attract foreign expertise, though employers will need to navigate disclosure, treaty and scope uncertainties
Gift this article