Estonian Annual Report Deadlines: What Every OÜ Owner Needs to Know
Every Estonian private limited company (OÜ), active, dormant, or with zero revenue, is legally required to file an annual report with the Estonian Business Register. There is no exemption for inactive companies. Here's what founders actually need to know.
The six-month rule
The annual report must be submitted within six months of the end of your company's financial year. For most Estonian OÜs, the financial year matches the calendar year (1 January – 31 December), which means the report covering that year is due by 30 June of the following year. If your company uses a different financial year, your deadline shifts accordingly, always six months after your specific year-end.
What's actually required
- A balance sheet and income statement for the financial year
- Notes to the financial statements (even brief ones, for small/dormant entities)
- Management report, where required based on company size
- Submission through the e-Business Register in XBRL format, PDF, Word, and Excel filings are no longer accepted
Dormant companies aren't exempt
A common misconception: if the company had no transactions during the year, no report is needed. That's incorrect. Dormant and zero-activity OÜs must still file, typically a simplified report, but a filing all the same.
What happens if you miss the deadline
The Business Register can impose fines of up to €3,200, and these can be levied on the company and on each board member personally. Persistent non-filing can ultimately lead to the company being struck off the register.
How to stay ahead of it
The founders who miss this deadline are almost never being careless, they're usually managing a business from a different time zone with no one tracking Estonian-specific dates on their behalf. A few practical habits help:
- Confirm your exact financial year-end and calculate your real deadline from it
- Keep bookkeeping current throughout the year, not just before the deadline
- Have a single accountant who proactively flags the date, rather than relying on a dashboard notification you might miss
This is exactly the kind of deadline-tracking we build into every engagement at Supremea, we flag it well before it's due, not the week of.
Sources: e-Residency official blog, How to prepare your annual report; Estonian Business Register filing requirements (XBRL format, in force since 2022). This guide is general information, not legal or tax advice, confirm your specific deadline and requirements with your accountant.