Every Estonian company — OÜ or otherwise — must file an annual report by 30 June. That includes companies owned entirely by foreigners, run by e-residents from the other side of the world, and companies that had zero activity all year. There are no exemptions for size, inactivity, or non-residency. Here is everything you need to know to file the 2025 annual report correctly and on time.

No exemptions — this means you

The obligation to file an annual report applies to every legal entity registered in Estonia's Commercial Register, without exception. This is established by the Estonian Commercial Code (Äriseadustik § 179) and the Accounting Act, and it applies regardless of:

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  Whether the company had any revenue or transactions during the year
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  Whether the founders and board members are Estonian residents or based abroad
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  Whether the company was active for the full year or only part of it
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  Whether the company is owned via e-Residency, a foreign holding structure, or directly by individuals

A dormant OÜ with a single bank account, no invoices, and no staff still files. The report in that case is simplified — a "zero report" — but it must be prepared, signed, and submitted through the e-Business Register by the same deadline as every other company.

June 30, 2026 — and the format has changed

For companies whose financial year runs January 1 to December 31, 2025, the annual report must be submitted to the Estonian Business Register by 30 June 2026. This is a hard deadline. There is no automatic extension, no grace period, and no provision that delays it because the system is busy.

If your company has a non-standard financial year — for example, April 1 to March 31 — the deadline is six months after your year-end date. Your first financial year can cover up to 18 months if your company was incorporated during the year.

XBRL format — no exceptions since 2022

Since 2022, the Business Register only accepts annual reports in XBRL format (eXtensible Business Reporting Language). PDF, Word, and Excel submissions are no longer permitted. This means the report must be generated as a machine-readable file conforming to the Estonian accounting taxonomy (et-gaap). If you are filing yourself, you will need a tool that generates compliant XBRL output. If you are working with an accountant, this is handled as part of the filing process.

What your annual report must contain

The exact content of your annual report depends on your company's size category under Estonian accounting law. Most foreign-owned OÜs and e-resident companies qualify as micro-entities or small companies, which carry lighter requirements than medium or large companies.

*Micro-entities exempt from management report since 2024 (effective 17.01.2025) — unless net equity has fallen below half of share capital (ÄS § 176).

Micro-entity thresholds (must not exceed 2 of 3)

Revenue under €175,000 · Balance sheet total under €88,000 · Fewer than 10 employees. Most straightforward e-resident OÜs sit comfortably within these limits. Audit thresholds for Estonian companies were revised in 2025: a statutory audit triggers when revenue exceeds €5,000,000, assets exceed €2,500,000, or average headcount is 50 or more — two out of three must be exceeded for two consecutive years.

Equity requirements and what happens when they aren't met

This is the area that catches the most foreign-owned and e-resident companies off guard. Estonian law requires that a company's net equity — the difference between assets and liabilities — remains above a statutory minimum. If it falls below that threshold, the company must disclose this in the annual report and explain how it plans to rectify the situation.

The equity rules

If share capital is between €2,500 and €5,000, net equity must be at least €2,500. If share capital exceeds €5,000, net equity must be at least 50% of share capital. Under Estonian Commercial Code § 176, if net equity falls below half of share capital, a management report becomes mandatory even for micro-entities — and the board must present a plan to cover the deficit.

Shareholder loans — classify them carefully

Loans from shareholders to the company are one of the most commonly misclassified items in OÜ annual reports. A shareholder loan is a liability on the balance sheet — it reduces net equity. How the loan is structured, documented, and reported affects the company's equity position, its borrowing capacity, and its ability to distribute dividends.

If the loan was used to fund operations and the company has not yet become profitable, the cumulative liability can push equity below the required minimum. In some cases, the shareholder may choose to convert the loan to equity, forgive it entirely (which converts it to income and creates a taxable event), or make a new share capital contribution to restore the equity position before the annual report is filed.

Retained earnings and profit distribution

Every annual report — even if no dividends are being paid — must include a formal profit distribution proposal. This is a mandatory section per Estonian accounting rules (RPS § 14 lg 2¹). The proposal states whether net profit is being carried forward to retained earnings, paid out as dividends, or allocated to reserves.

Critically, dividends cannot be paid until the annual report for the relevant year is filed and formally approved by shareholders. This is the single most common reason e-resident founders are frustrated by the annual report process — they want to distribute profits but cannot do so until the paperwork is complete. Filing early removes this blocker.

Your complete filing checklist for the 2025 annual report

Work through this list before you begin the filing process. Each item represents either a prerequisite for filing or a common source of errors and rejections.

Step-by-step: submitting through the e-Business Register

1. 1
   Log in to the e-Business Register at ettevõtjaportaal.rik.ee using your e-Residency digital ID, Smart-ID, or Mobile-ID. Select your company from the dashboard.
2. 2
   Open the Annual Reports section and create a new report for the 2025 financial year. If you are granting an accountant access, do this now under "Defining persons entering data."
3. 3
   Upload or enter your financial data. Depending on your tool, you either import the XBRL file directly or fill in the structured forms. Balance sheet, income statement, notes, and profit distribution proposal are all required sections.
4. 4
   Run the built-in validation. The portal checks for basic consistency errors. Fix any flagged issues before proceeding — submissions with errors will be rejected.
5. 5
   Generate the preview PDF and review it carefully. Check every figure, every note, and the profit distribution proposal. This is the document that becomes public record once submitted.
6. 6
   Apply digital signatures. All required board members sign using their digital ID. If any signatory cannot sign digitally, a physical signature is required — this must be scanned and uploaded as a PDF attachment.
7. 7
   Submit and verify. Click Submit, then immediately check the report's status. Confirm it shows as accepted in the register. Download your copy. The annual report is now public in the Business Register database.

What goes wrong — and how to avoid it

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  Leaving bookkeeping incomplete until June. The annual report cannot be accurately prepared until the accounting for the full year is finished. Companies that start reconciling in late June run out of time. Aim to have bookkeeping closed by April.
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  Not checking equity before filing. An equity deficit discovered after the report is submitted requires an amended filing, creates mandatory disclosure obligations, and can block dividend distributions. Check the position before the report is drafted.
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  Misclassifying personal expenses or shareholder transfers. Personal purchases made on the company card, undocumented transfers, and informal shareholder withdrawals need to be properly classified — either reimbursed, declared as fringe benefits, or documented as loan drawdowns. Leaving them unclassified creates problems in the report and with EMTA.
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  Forgetting the shareholders' resolution. The annual report must be approved by shareholders and the resolution documented. This is a separate document from the report itself. Without it, the submission is technically incomplete.
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  Attempting to distribute dividends before filing. Dividends are only lawfully distributable after the annual report for the relevant year has been filed and approved by shareholders. This is the sequence, and it cannot be reversed.
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  Not planning for digital signature logistics. If any board member needs to sign but doesn't have working digital credentials, sorting this out takes time — especially if an e-Residency card has expired or if a non-Estonian co-founder needs to sign via notary. Don't discover this problem on June 28.
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  Filing a zero report without confirming true zero activity. A zero report means absolutely no transactions — no bank charges, no platform fees, no card payments. Even a monthly €1.50 bank fee makes it an active report. Review bank statements before assuming zero.

After the report is filed

Once your 2025 annual report has been accepted by the Business Register, it becomes publicly accessible in the register database. Anyone — banks, investors, clients, counterparties — can view it. This is not unique to Estonia; it is standard practice across EU jurisdictions, and it is one of the reasons Estonia's business environment is considered transparent and trustworthy.

Once the report is filed and the shareholders' resolution approving it has been signed, retained earnings from 2025 become distributable as dividends. Estonian corporate income tax of 22% applies on the gross amount distributed — this is paid by the company via the TSD return in the month following the distribution. There is no corporate income tax on retained profits that are left in the company.

If the report reveals a deficit in retained earnings or an equity shortfall, that situation must be addressed — either through a capital contribution, a shareholder loan conversion, or other remediation — before the next reporting cycle. Leaving it unresolved compounds the issue and triggers additional disclosure obligations in subsequent years.