Monthly Accounting for Small Estonian Businesses
Practical guide to monthly accounting for a small Estonian OÜ — what you are legally required to do, how to handle common transactions, when VAT registration becomes mandatory, and what a typical month looks like for a small service or retail business.
5 Key Things a Small Estonian OÜ Must Know About Accounting
The Raamatupidamise seadus (Accounting Act) requires every OÜ to maintain organised double-entry accounts from the date it is registered in the Business Register. You cannot wait until you start earning to set up accounting — the obligation starts on day one.
The majandusaasta aruanne (annual financial statements) must be filed with the äriregister (Business Register) every year by 30 June, regardless of whether the company had any revenue, expenses, or activity. A company with no transactions still files a nil annual report.
Once your taxable supplies (sales of goods or services in Estonia and the EU) reach €40,000 in a rolling 12-month period, you must register for VAT with EMTA before the threshold is crossed. From that point, the 22% standard VAT rate applies to most sales and you file a monthly KMD.
Under the Raamatupidamise seadus, every accounting entry must be supported by a source document. Cash purchases, fuel receipts, restaurant bills — each must have a dated receipt or invoice. Documents must be retained for 7 years from the end of the financial year.
An OÜ owner cannot simply transfer money from the company account to their personal account without tax consequences. Payments to yourself must be structured as salary (with TSD, social tax, income tax), board member fees, or dividend distributions (with 20% distribution tax).
What accounting does a small Estonian OÜ actually need? For a small business with low transaction volume, no employees, and turnover below €40,000: monthly bookkeeping (posting invoices and bank transactions), annual report preparation, and EMTA correspondence handling. Add KMD monthly filings once VAT-registered, and TSD once staff are hired. The legal minimum is organised accounts and an annual report — everything else triggers based on business activity.
Section 1 — Legal Obligations for a Small Estonian OÜ
The complete list of what you must do — and when
Complete Obligation Reference
The obligations below apply to a standard Estonian OÜ. Not all apply to every company — read the ‘Applies When’ column carefully.
| Obligation | Applies When | Deadline | Consequence if Missed |
|---|---|---|---|
| Maintain double-entry accounts (Raamatupidamise seadus) | Every OÜ from registration date | Ongoing — monthly at minimum | EMTA can assess; director may be personally liable for missing records |
| Retain source documents (invoices, receipts, contracts) | Every OÜ | 7 years from end of financial year | Documents requested by EMTA cannot be produced; deductions disallowed |
| File annual report (majandusaasta aruanne) | Every OÜ — even if inactive | 30 June (or 6 months after financial year-end) | Business Register can strike company off after 6 months overdue |
| File KMD (käibemaksudeklaratsioon) | OÜ registered for VAT (KM-kohustuslane) | 20th of each following month | €200–€2,000 fine; 0.06%/day interest on unpaid VAT |
| File TSD (tulu- ja sotsiaalmaksu deklaratsioon) | OÜ with employees or management board members receiving salary | 10th of each following month | 0.06%/day interest on unpaid social tax and income tax |
| Register employees in töötamise register | Before first day of work for every employee | Before start date | Fine up to €1,200 per unregistered employee; employee loses social security cover |
| File dividend TSD annex | When OÜ distributes dividends | 10th of month following distribution | 0.06%/day on unpaid 20% distribution tax |
| VAT registration (KM-R application) | When taxable turnover exceeds €40,000 in 12 months | Before threshold is crossed | EMTA can back-assess VAT from the date threshold was crossed |
What ‘Small Business’ Means in Estonian Context
Estonia has a defined category of ‘micro-entity’ (mikroettevõtja) under the Accounting Act which affects annual report simplifications. An OÜ qualifies as a micro-entity if it does not exceed two of the following three criteria: total assets up to €175,000; revenue up to €50,000; and average employees up to 1. Micro-entities may prepare simplified annual reports and are exempt from certain disclosure requirements.
However, micro-entity status only affects the format of the annual report — it does not change the core accounting obligations (double-entry bookkeeping, source documents, 7-year retention) or the EMTA filing obligations (TSD, KMD) that are triggered by business activity.
| Category | Criteria (max 2 of 3 exceeded) | Annual Report Format | Key Simplification |
|---|---|---|---|
| Micro-entity (mikroettevõtja) | Assets ≤ €175K; Revenue ≤ €50K; Avg employees ≤ 1 | Simplified — no notes required unless voluntary | No management board report required; no cash flow statement |
| Small company (väikeettevõtja) | Assets ≤ €4M; Revenue ≤ €8M; Avg employees ≤ 50 | Abbreviated — reduced notes compared to full | Simplified cash flow statement; reduced disclosure |
| Medium company (keskmise suurusega) | Assets ≤ €20M; Revenue ≤ €40M; Avg employees ≤ 250 | Standard full GAAP annual report | Full notes, management report, cash flow statement |
| Large company / public interest | Exceeds medium thresholds or listed | Full GAAP — statutory audit required | External audit mandatory; full disclosure |
Section 2 — Common Transactions and How to Handle Them
Sales, purchases, expenses, cash payments, and owner payments — the accounting and VAT treatment for each
Transaction Reference Table
The table below covers the most common transactions a small Estonian OÜ encounters. Each transaction has a specific accounting treatment, VAT treatment, and required source document. All references are to Estonian law and EMTA guidance.
| Transaction Type | Accounting Treatment | VAT Treatment | Record Needed |
|---|---|---|---|
| Sales invoice to Estonian B2B client | Revenue in month of supply | 22% VAT output (if VAT-registered) | Signed invoice with your VAT number and client’s VAT number |
| Sales invoice to Estonian consumer | Revenue in month of supply | 22% VAT output (if VAT-registered) | Invoice with amount; no VAT number needed for consumer |
| Sales invoice to EU B2B client (VAT-registered) | Revenue in month of supply | 0% — reverse charge (Art. 196 VAT Directive) | Invoice + VIES verification of client VAT number |
| Sales to non-EU client | Revenue in month of supply | Outside EU VAT scope — no VAT | Invoice with ‘outside scope’ note |
| Purchase invoice from Estonian supplier (VAT) | Expense in month of receipt | Input VAT reclaimable (if OÜ is VAT-registered) | Original invoice with supplier’s VAT number and your company data |
| Cash purchase with receipt (e.g. hardware store) | Expense in month of purchase | Input VAT reclaimable from receipt (if VAT-registered) | Cash receipt or till receipt — must show supplier name, amount, VAT |
| Bank transfer fees and interest | Finance expense | No VAT (banking services are exempt) | Bank statement showing fee |
| Owner draws salary from OÜ | Salary expense; social tax on top | No VAT on salary payments | Employment contract; TSD declaration confirming amounts |
| OÜ pays owner as board member (juhatuse liige) | Management fee expense; social tax on top | No VAT on board fee | Board resolution; service agreement; TSD filed |
| Dividend distribution to shareholder | Equity distribution — not expense | 20% distribution tax; no VAT | Board resolution; TSD annex; proof of payment |
Sample Journal Entries for a Small Service OÜ
Below are the four most common journal entries for a small Estonian service OÜ — a consulting company with monthly invoices to Estonian clients, some purchased services, and an owner taking a board member fee.
Sales Invoice — €1,000 service + 22% VAT to Estonian B2B client
| Account | Debit (DR) | Credit (CR) |
|---|---|---|
| Accounts Receivable / Trade Debtors | €1,220.00 | |
| Revenue — Services | €1,000.00 | |
| VAT Payable — KMD | €220.00 |
* Invoice issued; €1,000 revenue recognised in month of supply; €220 VAT collected and payable to EMTA by 20th of following month. VAT rate is 22% since 1 January 2024.
Purchase Invoice — €500 + 22% VAT from Estonian supplier
| Account | Debit (DR) | Credit (CR) |
|---|---|---|
| Professional Services Expense | €500.00 | |
| VAT Receivable (input VAT reclaimable) | €110.00 | |
| Accounts Payable / Trade Creditors | €610.00 |
* Input VAT of €110 is reclaimable on KMD (reduces VAT payable to EMTA). Requires valid Estonian supplier invoice with supplier’s VAT number. Input VAT only reclaimable if OÜ is itself VAT-registered.
Board Member Fee (juhatuse liige tasustamine) — €1,500 gross
| Account | Debit (DR) | Credit (CR) |
|---|---|---|
| Management Fee Expense (board fee) | €1,500.00 | |
| Employer Social Tax Expense (33%) | €495.00 | |
| Employer Unemployment Insurance (0.8%) | €12.00 | |
| Income Tax Withheld (payable EMTA) | €169.20 | |
| Employee Unemployment Insurance | €24.00 | |
| Net payment to board member | €1,306.80 | |
| Social Tax Payable (EMTA) | €495.00 | |
| Employer UI Payable (EMTA) | €12.00 |
* Board member fee treated same as salary for TSD purposes. Total employer cost = €1,500 + €495 + €12 = €2,007. Income tax withholding: (€1,500 − €654 basic exemption) × 20% = €169.20. TSD filed by 10th of following month.
Section 3 — VAT: When You Need It and What It Means
The €40,000 threshold, mandatory registration, and what changes when you become VAT-registered
The €40,000 VAT Registration Threshold
The VAT registration obligation under the Käibemaksuseadus (Value Added Tax Act) is triggered when your taxable turnover in Estonia exceeds €40,000 in a consecutive 12-month period. This is a rolling threshold — not a calendar year reset. Once you cross it, you must apply for registration by filing the KM-R form with EMTA, typically within 3 business days of crossing the threshold.
Taxable turnover includes all sales of goods and services subject to VAT (including zero-rated EU exports) but excludes exempt supplies (insurance, financial services, healthcare). Sales to private individuals inside Estonia count. Sales to VAT-registered EU businesses (zero-rated reverse charge) count. Sales outside the EU do not count toward the threshold under standard rules.
VAT Threshold Monitoring — Rolling 12-Month CalculationExample: Freelance web designer OÜJuly 2023: €3,200 (Estonian B2B clients)
Aug–Dec 2023: €3,500/month × 5 = €17,500
Jan–Jun 2024: €3,800/month × 6 = €22,800
Rolling 12-month total at 30 June 2024:
Jul 2023 – Jun 2024: €3,200 + €17,500 + €22,800 = €43,500
Threshold of €40,000 crossed during May 2024
VAT registration application (KM-R) must be filed with EMTA before the month in which the €40,000 was exceeded
From registration date: charge 22% VAT on all taxable sales
First KMD due: 20th of the month following registration
* Monitor your rolling 12-month total monthly once you approach €30,000
* Voluntary registration available below threshold — useful for B2B businesses
* Voluntary registration allows input VAT reclaim on purchases
Before and After VAT Registration — What Changes
| Area | Before VAT Registration (KM-kohustuseta) | After VAT Registration (KM-kohustuslane) |
|---|---|---|
| Invoices to Estonian clients | Invoice without VAT line; no VAT charged | Add 22% VAT to net price; show VAT amount and your VAT number on invoice |
| Invoices to EU B2B clients | Invoice without VAT; reverse charge still applies (no change) | Same — reverse charge; but now include your EE VAT number |
| Monthly EMTA filings | No KMD required | KMD must be filed by 20th of each month; even nil returns |
| Purchase invoices with VAT | No input VAT reclaim — VAT is a cost | Input VAT on business purchases reclaimable; reduces KMD payable |
| Cash flow | Lower prices to customers (competitive for B2C) | Prices increase by VAT for B2C customers; B2B clients reclaim VAT anyway |
| Bookkeeping complexity | Simpler — no VAT accounts needed | VAT payable and VAT receivable accounts required; monthly reconciliation |
| EMTA reporting | Annual report only (if no employees) | Monthly KMD + annual report; more EMTA interaction |
If all your clients are VAT-registered Estonian companies or EU businesses, registering for VAT voluntarily below the €40,000 threshold is often worthwhile. Your clients can reclaim the VAT you charge them (so it does not make you more expensive), and you get to reclaim input VAT on all your business purchases — office supplies, software subscriptions, equipment, accounting fees. For a small OÜ with €20,000 in annual expenses, the input VAT saving could be €4,400 per year (22% of €20,000).
Section 4 — Paying Yourself: Salary, Board Fee, and Dividends
The three ways to extract money from your Estonian OÜ — and the tax implications of each
You Cannot Simply Transfer Money to Yourself
A common mistake made by small OÜ owners is treating the company’s bank account as their personal account — withdrawing money whenever needed without structuring the payment correctly. Under Estonian law, all transfers from the OÜ to its owner must be classified as either: employment salary, board member fee, loan (which must be repaid), or dividend distribution. Unstructured transfers are treated by EMTA as deemed distributions and taxed accordingly.
| Payment Method | Tax on OÜ | Take-Home for Owner | Best For | Notes |
|---|---|---|---|---|
| Salary (töötaja) | Social tax 33% + employer UI 0.8% on gross | Gross minus income tax (20%) minus employee UI (1.6%) | Regular monthly income; builds pension II pillar | Employment contract required; TSD filed monthly by 10th |
| Board member fee (juhatuse liige tasu) | Social tax 33% + employer UI 0.8% on gross | Gross minus income tax (20%) minus employee UI (1.6%) | Flexible — can be one-off or monthly without employment contract | Board resolution required; same TSD treatment as salary |
| Dividend distribution | 20% distribution tax on gross dividend (20/80 rule) | Net dividend received; no further personal income tax if Estonian resident | Tax-efficient for larger sums; no social tax | Board resolution required; OÜ must have distributable retained earnings; TSD annex filed |
| Loan to owner | No immediate tax — must be repaid | Full amount received as loan | Short-term liquidity needs only | Loan agreement required; interest must be charged at market rate or EMTA may tax the interest benefit; not a long-term solution |
Which Is Most Tax-Efficient for a Small OÜ Owner?
Owner Payment Comparison — Extracting €1,000 from the OÜOption 1: Salary of €1,000 gross
Employer social tax (33%): OÜ pays extra €330 on top = €1,330 total OÜ cost
Employee income tax (20% on €1,000 − €654 exemption): 20% × €346 = €69.20
Employee UI (1.6%): €16
Owner receives: €1,000 − €69.20 − €16 = €914.80
OÜ total cost for owner to receive €914.80: €1,330Option 2: Board member fee of €1,000 gross
Same tax treatment as salary above
Owner receives €914.80 | OÜ cost: €1,330Option 3: Dividend of €1,000 net (gross dividend = €1,000 ÷ 0.8 = €1,250)
Distribution tax: €1,250 × 20% = €250 paid by OÜ to EMTA
Owner receives: €1,000 net (no further personal income tax for Estonian resident)
OÜ total cost for owner to receive €1,000: €1,250
Dividend more efficient: €1,250 OÜ cost vs €1,330 for salary
BUT: dividends require retained earnings (profits must exist to distribute)
Salary builds II pillar pension; dividend does not
Optimal strategy: minimum salary (to satisfy health insurance); rest as dividend
No social tax on dividend — key efficiency gain
In Estonia, access to the public health insurance scheme (Haigekassa) is linked to payment of social tax. To maintain health insurance cover, social tax must be paid on at least the minimum monthly salary (alampalk, which is €820 in 2024). If you pay yourself a board fee of €820/month, the social tax of €270.60 (33%) ensures your health insurance remains active. Owners who pay themselves only dividends and no salary may lose health insurance coverage unless they have another social tax-paying basis (e.g. another employment).
Section 5 — Record-Keeping for Small Businesses
What documents to keep, for how long, and in what format
The 7-Year Rule and What It Covers
The Raamatupidamise seadus requires all accounting documents to be retained for at least 7 years from the end of the financial year in which they were created. For a company with a 31 December year-end, a 2024 receipt must be kept until at least 31 December 2031. Source documents include not just invoices but also contracts, bank statements, payroll records, and any other documents that support an accounting entry.
| Document Type | Retention Period | Format Acceptable | Who Keeps It |
|---|---|---|---|
| Sales invoices issued | 7 years from financial year-end | Original or certified digital copy | OÜ — stored in accounting system or secure archive |
| Purchase invoices received | 7 years from financial year-end | Original paper or digital PDF/XML | OÜ — filed by date or supplier name |
| Bank statements | 7 years | Electronic export or printed statement | OÜ — typically available from bank portal for 5 years; export and save |
| Employment contracts | Duration of employment + 7 years | Original signed copy | OÜ — HR file |
| Payroll records (TSD declarations) | 7 years from filing date | Electronic record from EMTA e-Tax portal | EMTA keeps filed declarations; OÜ should keep own copy |
| Cash receipts (kassatšekid) | 7 years | Scan of original; photograph acceptable | OÜ — can use apps to photograph and store digitally |
| Lease and service contracts | Duration + 7 years | Original or certified copy | OÜ — contract file |
| Annual reports filed | Permanently | Filed copy from e-Äriregister | Available in Business Register permanently; keep own copy |
Digital Document Storage — Fully Legal in Estonia
Estonia fully accepts digital document retention. The Raamatupidamise seadus allows accounting records to be kept in electronic form, provided the digital copies are legible, cannot be altered without detection, and are accessible throughout the retention period. A photographed receipt stored in Google Drive or Dropbox satisfies this requirement — provided the photo is clear enough to read all required fields (supplier name, date, amount, and VAT if applicable).
Take a photo of every receipt immediately. Blur or fade over time renders receipts unusable — photograph immediately.
Forward email invoices directly to your accounting email. Do not delete supplier invoice emails.
One shared folder organised by month/year. Each file named clearly: YYYYMM-Supplier-Amount.pdf
Always use your company LHV, SEB, or Swedbank card for business purchases — bank statement serves as secondary record.