If you run an Estonian OÜ, the annual report is probably your least favourite obligation. It's not just a form — it's a full set of financial statements, explanatory notes, a shareholder resolution, and (for some) a management report, all submitted in a rigid XBRL format through a government portal that hasn't won any design awards. Even a dormant company with zero revenue must file one every year, or face compulsory dissolution.
The good news: most small OÜ companies qualify as micro-enterprises, which cuts the requirements down considerably. The bad news: even the simplified version involves reconciling every transaction for the year, classifying assets and liabilities correctly, getting the notes right, and digitally signing the whole thing before 30 June.
This post covers who must file, what the report contains for different company sizes, the step-by-step filing process on the RIK portal, and common mistakes to avoid.
Who Must File and When
| Requirement | Detail |
|---|---|
| Who | Every company in the Estonian Commercial Register — no exceptions |
| Deadline | 6 months after the financial year ends |
| Calendar-year companies | Financial year ends 31 December — report due by 30 June |
| First financial year | Can be up to 18 months (e.g., company founded July 2025 can have first year end 31 December 2026) |
| Filing method | Company Registration Portal (RIK) in XBRL format |
| Signature | Digital signature required (ID-card, Mobile-ID, or Smart-ID) |
| Retention | All supporting documents must be kept for 7 years |
What Happens If You Don't File
If the annual report is not filed within 6 months of the deadline, the Commercial Register sends a warning. If the report is still not filed after a further period, the Registrar can initiate compulsory dissolution (sundlõpetamine) of the company. This is a real risk — the Commercial Register actively strikes companies off for non-filing.
For dormant companies, filing a zero-activity report — though tedious — is far simpler than dealing with dissolution and re-registration.
Micro vs Small vs Medium: What's in the Report
Not every company files the same report. The level of detail depends on your company's size category.
Company size categories
| Category | Criteria (approximate) |
|---|---|
| Micro-enterprise | Smallest companies — most solo OÜ companies qualify |
| Small enterprise | Turnover, assets, or employees above micro thresholds |
| Medium/Large | Turnover >= EUR 5M, assets >= EUR 2.5M, or employees >= 50 |
What each category must include
| Component | Micro | Small | Medium/Large |
|---|---|---|---|
| Balance sheet | Yes | Yes | Yes |
| Income statement | Yes | Yes | Yes |
| Cash flow statement | No | No | Yes |
| Statement of changes in equity | No | No | Yes |
| Notes | Up to 3 | Full notes (policies, related parties) | Full notes |
| Management report | No | Yes | Yes |
For most solo OÜ owners, the micro-enterprise format applies: a balance sheet, an income statement, and up to three explanatory notes. No management report, no cash flow statement, no equity statement. This is the simplest version of the annual report.
Audit Requirements
Most small OÜ companies do not require an audit. The thresholds (updated for 2024 annual reports with a 25% increase) are:
| Requirement | Criteria (at least 2 of 3 for 2 consecutive years) |
|---|---|
| Full audit | Revenue >= EUR 5,000,000 or Assets >= EUR 2,500,000 or Employees >= 50 |
| Review | Revenue >= EUR 2,000,000 or Assets >= EUR 1,000,000 or Employees >= 30 |
If your company has EUR 80,000 in revenue, EUR 30,000 in assets, and 1 employee, you are well below both thresholds. No audit or review is needed.
Step-by-Step: Filing on the RIK Portal
1. Log in to the Company Registration Portal
Go to ariregister.rik.ee and log in with your ID-card, Mobile-ID, or Smart-ID. Navigate to your company's entry and select "Submit annual report."
2. Choose your reporting standard
Select Estonian GAAP (Estonian Financial Reporting Standard). This is the default and correct choice for the vast majority of small companies. IFRS is only required for listed companies and certain financial institutions.
3. Select your company size
Choose micro-enterprise if you qualify. The portal will then show the simplified form with fewer required fields.
4. Fill in the balance sheet
The balance sheet shows your company's financial position at the end of the financial year. For a small OÜ, this typically includes:
Assets:
- Bank account balance
- Accounts receivable (if any)
- Equipment and other fixed assets (if any)
Liabilities:
- Accounts payable (if any)
- Tax liabilities (if any)
Equity:
- Share capital (typically EUR 2,500 for an OÜ)
- Legal reserve (if applicable)
- Retained earnings (prior years' accumulated profit/loss)
- Current year profit or loss
5. Fill in the income statement
The income statement shows revenue and expenses for the financial year:
- Revenue from sales
- Cost of goods/services
- Operating expenses
- Tax expenses (if applicable)
- Net profit or loss
6. Add notes
For micro-enterprises, up to 3 notes are required. The portal provides templates. Common notes include:
- Accounting policies used
- Contingent liabilities (if any)
- Transactions with related parties (if any)
7. Approve and sign
The annual report must be approved by shareholders before submission. For a single-shareholder OÜ, this is a written decision by the sole shareholder confirming approval of the report and the allocation of profit/loss.
Once approved, sign the report digitally and submit through the portal.
Common Mistakes
1. Not filing for dormant companies
The most common mistake. "My company did nothing, so I don't need to file." Wrong. Every registered company must file, every year. A zero-activity report is simple to prepare.
2. Missing the 30 June deadline
For calendar-year companies, the deadline is 30 June. If your first financial year covers 18 months (e.g., July 2024 to December 2025), the deadline is 6 months after 31 December 2025 — still 30 June 2026.
3. Choosing the wrong reporting standard
IFRS is more complex and generally unnecessary for small companies. Once you choose IFRS, you must use it consistently going forward. Estonian GAAP is the appropriate choice for most OÜ companies.
4. Forgetting the shareholder resolution
The annual report must be formally approved by shareholders before submission. For solo OÜ owners, this means writing and signing a short decision document. The RIK portal may reject submissions without evidence of approval.
5. Not understanding that filing unlocks dividends
The annual report is not just a compliance exercise — it is the document that makes profits distributable. Until the report is filed and approved, the current year's profits cannot be paid out as dividends. Many first-year founders don't realize this connection until they try to distribute.
After Filing: What the Report Unlocks
Once the annual report is approved and filed:
- Retained earnings become distributable. The net profit shown in the approved report can be distributed as dividends (subject to the net assets test).
- The company remains in good standing. No risk of compulsory dissolution.
- Tax compliance is complete. EMTA can cross-reference the annual report against TSD and KMD filings for consistency.
For the rules on distributing those retained earnings, see How Much Dividend Can Your Estonian Company Pay?. For all current tax rates, see Estonian Tax Rates 2026.
Arvello and Annual Reports
The annual report is where a full year of bookkeeping either pays off or falls apart. If your books are messy, you're facing days of reconciliation work in June. If they're clean, it's a formality.
Arvello creates everything you need for the annual report:
- Balance sheet and income statement generated directly from your accounting data — no re-keying numbers into the RIK portal
- Explanatory notes pre-filled based on your company's transactions (related-party disclosures, accounting policies, contingent liabilities)
- Profit distribution proposal calculated from your approved net profit, with the net assets test applied automatically
- Shareholder resolution generated and ready for digital signature
- XBRL output in the format the Company Registration Portal expects
Because Arvello keeps your books reconciled throughout the year, the annual report becomes a review-and-submit task rather than a reconstruct-everything-from-bank-statements ordeal.
