Athens Updates Property Tax Assessment Rules, Adjusting Resident Payments This Summer

The Athens municipality began applying updated rules for property tax assessments on July 1, covering residential buildings and commercial sites in every district. The change replaces the prior system that used 2018 reference values with one tied to recent transaction records held by the city cadastre office.

Local government officials approved the adjustment during the June council session as part of the annual budget cycle. The move aligns municipal revenue collection with current market conditions reported in public land registry filings, without altering the overall tax rate set by national law.

Changes to household costs and services

Residents in central neighborhoods such as Kolonaki and Exarcheia will see their annual bills recalculated according to the new valuations. A homeowner whose property last sold in 2022 now faces an assessment reflecting average prices recorded through the end of 2025, which the legislation states will be applied uniformly across all parcels.

Policy analysts say the shift means some owners of older apartments may pay several hundred euros more or less depending on location and size. The city has opened an online portal for owners to review their individual valuations and submit correction requests before the first payment deadline in September.

Next steps for implementation

The municipality plans to issue the revised tax notices by the end of July, followed by a two-month window for appeals handled by the local finance department. City records show the 2026 municipal budget projects collection of 185 million euros from property taxes under the revised method.

Further guidance sessions for residents are scheduled at district offices throughout August, with details posted on the Athens municipality website.