Estonia: annual report (majandusaasta aruanne) filing deadline to the business register
Recurring annual deadline under Äriseadustik (Commercial Code) §179 (and §334/§388 for other entity types): the approved annual report and accompanying documents must be submitted to the Business Register within 6 months of financial year end. For a standard 1 Jan-31 Dec 2026 financial year this is 30 June 2027; companies with a non-calendar financial year file 6 months after their own year-end.
All Estonia-registered companies (OÜ, AS and other commercial entities), including micro and small companies with simplified reporting.