Estonian M&A updates for 2026: merger-control thresholds, filing timing, annual reports and dividend-tax checks before closing.
What changed in the 2026 M&A checklist?
The live checklist is less about a new deal label and more about applying current regulatory tests in the right order. Buyers should test Estonia turnover, public filings, tax timing and actual post-closing management before signing.
When is a merger-control filing required?
The Competition Authority says a concentration is notified when combined Estonia turnover exceeds EUR 6 million and each of at least two parties has Estonia turnover above EUR 2 million. The test is turnover, not purchase price. Official source.
What are the authority timelines?
The ordinary review window is 30 calendar days after a complete notification. Supplementary proceedings can run for up to four months, so a deal timetable needs a condition precedent where the thresholds are met.
Why do annual reports still matter?
The e-Business Register requires the annual report and accompanying documents within six months of the financial year end. Public accounts are a starting point; they do not replace a private review of contracts, tax positions, IP and founder arrangements. Official source.
What is the current profit-distribution tax point?
EMTA states that, from 2025 onward, dividends are taxed at company level at 22/78. The declaration and payment deadline is the 10th day of the following calendar month. Retained cash therefore needs a gross-up analysis in pricing.
What should happen immediately after closing?
Update board authority, beneficial-owner information, banking mandates and access controls. Then ask where management will actually be carried out. An Estonian entity can create tax exposure abroad if management is effectively exercised there.
Which internal reading helps?
For structure, compare a share purchase and asset purchase in Estonia. For the tax workstream, use Corpenza’s tax optimisation services.
FAQ
Can a foreign buyer acquire an Estonian OÜ?
Yes, subject to the transaction documents, registry and any sector-specific approvals. The buyer still needs a diligence and closing plan.
Does every acquisition need a competition filing?
No. Apply the Estonia-turnover test first and seek transaction-specific advice where it may be met.
Is a published annual report enough for diligence?
No. It is an evidence point, not a complete disclosure package.
What tax point is commonly missed?
The value of retained profits and the 22/78 company-level dividend tax when cash is expected to be distributed.
Need help with the process?
Corpenza can coordinate the company, tax and compliance workstreams before and after an Estonian acquisition.
This is general information, not legal or tax advice. Rules and facts depend on the transaction.




