Everything posted by sneaker
It can take a long time. The costs are calculated for a period of 1 year ("Abrechnungszeitraum"). Then at the end of the 12th month after said period has ended the report must be provided (at the latest). I.e. if the last period ended on December 31st 2018 then you must have the report not later than December 31st 2019 (and even then the deadline might be extended under certain circumstances, e.g. if the landlord is still waiting for invoices from the gas company himself).