VAT is the point where running an Estonian OÜ stops feeling simple.
Company formation is fast. Accounting is manageable. But VAT introduces a layer of rules that depend on who your clients are, where they are based, how much you invoice, and what type of service or product you sell. Get it wrong and you face back-payments, penalties, and corrections that are expensive to fix and time-consuming to explain.
Most content on this topic either oversimplifies it – “register when you hit €40,000” – or buries the important parts in legal language that leaves you more confused than before.
This guide does neither. We explain every VAT obligation that applies to an Estonian OÜ owner in 2026, clearly and in plain language. Whether you are a freelancer who has never invoiced a VAT-registered client, a founder approaching the registration threshold, or someone trying to understand whether reverse charge applies to your situation — this is the guide you need.
What changed in 2025 and 2026: read this first
Before anything else, three significant changes to Estonian and EU VAT rules have come into effect that every OÜ owner needs to know about.
The Estonian VAT rate is now 24%
The standard VAT rate in Estonia increased from 22% to 24% on 1 July 2025. This followed an earlier increase from 20% to 22% on 1 January 2024. If you are VAT-registered and charging Estonian VAT to clients, you must now charge 24% on standard-rated supplies — not 22%.
Reduced rates also changed: the accommodation rate increased to 13% and press and periodicals to 9%, both from 1 January 2025.
A new EU-wide SME VAT exemption scheme started in 2025
From 1 January 2025, a new cross-border VAT exemption scheme allows small businesses registered in one EU member state to benefit from VAT exemption in other EU member states — without registering for VAT in each country individually.
For Estonian OÜ owners, this is relevant if you sell below threshold amounts across multiple EU countries. If your total EU-wide annual turnover stays below €100,000, you may be able to benefit from VAT exemption across all EU member states under this scheme, provided your turnover in Estonia also stays below €40,000.
This is a meaningful change for freelancers and consultants with clients spread across several EU countries. It does not eliminate the need to understand VAT — but it potentially reduces the complexity of cross-border compliance for smaller businesses.
The reverse charge mechanism remains the primary tool for B2B services
If you provide services to VAT-registered businesses in other EU countries — which describes a large proportion of Estonian e-resident companies — the reverse charge mechanism means you generally do not charge VAT at all on those invoices. The client accounts for VAT in their own country. This has not changed, but it is frequently misunderstood and worth understanding clearly, which we cover in detail below.
The basics: do you need to register for VAT?
Not every Estonian OÜ needs to be VAT-registered. Whether you must register — or whether it is worth registering voluntarily — depends on several factors.
The mandatory registration threshold: €40,000
VAT registration in Estonia becomes mandatory once your company’s taxable turnover reaches €40,000 in a calendar year (from 1 January). This threshold applies to taxable supplies made in Estonia.
Critically: the moment your taxable turnover reaches €40,000, you have three business days to register as a VAT taxable person with EMTA. The Estonian Tax and Customs Board treats you as a taxable person from the moment your supply reaches the threshold — not from the date you register. If you are late, the obligation is backdated.
This means you need to be tracking your turnover actively. If you are approaching €35,000–38,000 in revenue, do not wait. Contact your accountant immediately.
What counts toward the €40,000 threshold?
The threshold applies to taxable supplies made in Estonia. For most service-based OÜ owners working with B2B clients in other EU countries, those sales are generally not Estonian taxable supplies — they fall under the reverse charge mechanism and do not count toward the €40,000 Estonian threshold.
However, if you have Estonian clients, sell to consumers anywhere, or make certain types of B2C sales, those amounts do count. The practical result: many e-resident freelancers with only EU B2B clients can invoice well above €40,000 per year without triggering mandatory VAT registration in Estonia. This is one of the most commonly misunderstood aspects of Estonian VAT.
The new EU-wide €100,000 threshold
From 2025, if your total annual turnover within the EU stays below €100,000, and your Estonian turnover stays below €40,000, you may benefit from VAT exemption across all EU member states under the new SME scheme. This is separate from the Estonian registration threshold and applies specifically to cross-border EU supplies.
If you are close to these thresholds, this is a topic to discuss with your accountant — the rules involve notifications to EMTA and specific conditions that must be met.
Mandatory registration regardless of threshold
There are situations where VAT registration is mandatory regardless of your turnover:
- If you acquire goods from other EU member states above certain thresholds
- If you make distance sales of goods to consumers in Estonia above the relevant threshold
- If you are a non-EU company making certain supplies in Estonia — in this case there is no threshold at all and registration is required from the first supply
For the typical e-resident providing B2B services remotely, these situations are less common. But if your business model involves goods, digital services to consumers, or complex cross-border structures, understanding these rules is essential.
Voluntary VAT registration: when it makes sense
You do not have to wait until you hit €40,000 to register for VAT. You can register voluntarily at any time, and for some businesses it is the right decision even at relatively low turnover.
When voluntary registration is worth considering
You have significant VAT-able business expenses. If your company regularly pays VAT on purchases — software subscriptions charged with EU VAT, equipment, professional services — registering for VAT allows you to reclaim that input VAT. For companies with meaningful costs, this can represent real cash savings.
Your clients are all VAT-registered businesses. If all your clients are B2B and VAT-registered, adding VAT to your invoices does not cost them anything extra — they reclaim it themselves. In this situation, the administrative overhead of being VAT-registered is often worth the input VAT you can recover on your own costs.
You want to appear more established. In some industries and markets, having a VAT number signals a more established business. Some clients, particularly larger companies, actively prefer to work with VAT-registered suppliers for their own accounting reasons.
When voluntary registration is not worth it
All your clients are individuals (B2C). If you sell directly to consumers, charging VAT increases your prices by 24% for customers who cannot reclaim it. This reduces your competitiveness unless you can absorb the cost.
Your costs are minimal. If you have very few VAT-able expenses, the input VAT you can reclaim is small. The monthly KMD filing obligation then becomes a compliance overhead with little financial benefit.
You are a micro-business with low turnover. For very early-stage businesses, the administrative cost of VAT compliance — monthly filings, more complex accounting — may outweigh the benefits.
How the reverse charge mechanism works and why it matters for e-residents
The reverse charge mechanism is the single most important VAT concept for Estonian OÜ owners who work with EU business clients. Understanding it correctly prevents both errors on your invoices and unnecessary VAT registration.
What reverse charge means in practice
When you provide a service to a VAT-registered business in another EU member state, the supply is generally outside the scope of Estonian VAT. Instead of you charging VAT on the invoice, the client accounts for VAT in their own country — they calculate it, declare it, and typically reclaim it in the same filing. You neither charge it nor collect it.
This means: your invoice to a German GmbH, a French SARL, a Dutch BV, or any other VAT-registered EU business should generally not include any VAT. Instead, the invoice should reference that the reverse charge applies and that the client is responsible for accounting for VAT in their jurisdiction.
Your invoice should include the client’s VAT number and a note such as: “VAT reverse charged — Article 196 EU VAT Directive.”
What reverse charge does not apply to
The reverse charge for services applies to B2B supplies. It does not apply to:
- Sales to consumers (B2C) — individuals who are not VAT-registered
- Certain services related to immovable property (real estate)
- Restaurant and catering services
- Some passenger transport services
For the overwhelming majority of e-resident founders providing professional services (consulting, design, development, marketing, coaching, writing) to business clients across the EU, the reverse charge mechanism covers your invoicing entirely.
Clients outside the EU
For clients based outside the EU — the United States, United Kingdom, Australia, and so on — the supply is generally zero-rated for Estonian VAT purposes. You do not charge VAT. You do not reference reverse charge. The supply is simply outside the scope of the EU VAT system.
The KMD: how Estonian VAT filing works
Once you are VAT-registered, you must file a monthly VAT return — the KMD (käibemaksudeklaratsioon) — through the EMTA e-services portal at emta.ee. This is filed by the 20th of the following month, and any VAT owed must be paid by the same date.
What the KMD covers
The KMD declaration reports:
- All taxable supplies you made during the month (your sales)
- All taxable supplies you received (your purchases on which you paid input VAT)
- The VAT you owe (output VAT minus input VAT)
- Any intra-community supplies and acquisitions
- Any zero-rated exports
For most small service-based OÜs, the KMD is relatively straightforward — you have a handful of invoice lines, a limited number of expense receipts with VAT, and a simple calculation of what you owe or are owed.
The INF annex
Filed alongside the KMD, the INF annex provides invoice-level detail for transactions above certain thresholds with other VAT-registered parties in Estonia. For companies with primarily international clients, the INF is often empty or minimal.
Input VAT recovery
As a VAT-registered company, you can reclaim the VAT you paid on business expenses — this is called input VAT recovery. You can reclaim VAT charged on:
- Business software and subscriptions (if charged with Estonian or EU VAT)
- Professional services used for the business
- Equipment and assets used for business purposes
- Office costs and other qualifying expenses
You cannot reclaim VAT on personal expenses, entertainment in most cases, or expenses not used for your VAT-able business activity.
What happens if you file late
Late filing of the KMD results in a penalty of €10 per day up to a maximum of €300 per declaration. Underpaying VAT results in interest at 0.06% per day on the outstanding amount. These compound quickly — staying on top of the filing calendar is essential once you are VAT-registered.
This is one of the reasons that VAT registration almost always requires professional accounting support. Monthly filings with EMTA, correct categorisation of intra-EU transactions, and accurate input VAT recovery require attention to detail that most founders cannot sustain alone.
Practical scenarios: what applies to your situation
Scenario 1: Freelance developer invoicing EU B2B clients, €50,000/year
You invoice 8 companies in Germany, France and the Netherlands. All are VAT-registered businesses. Your invoices are for €50,000 total in 2025.
VAT position: Almost certainly not required to register. The reverse charge mechanism applies to all your invoices — these are not Estonian taxable supplies and do not count toward the €40,000 threshold. Your invoices should reference reverse charge, and you should include each client’s VAT number. If all your revenue falls under reverse charge, you remain below the €40,000 Estonian taxable supply threshold regardless of total invoicing volume.
Should you register voluntarily? Depends on your expenses. If you pay VAT on software subscriptions, equipment or other costs, voluntary registration lets you reclaim that input VAT. Worth calculating with your accountant.
Scenario 2: Designer selling to both businesses and individuals, €35,000/year
You invoice a mix of business clients across the EU and individual clients in Germany and France. Your total revenue is €35,000.
VAT position: Mandatory registration not yet triggered. However, the portion of revenue from individual (B2C) consumers is more complex — B2C service rules depend on where the consumer is based and what type of service you provide. Digital services to EU consumers have specific place-of-supply rules. Discuss with your accountant whether your B2C supplies trigger any VAT obligations before you reach €40,000.
Scenario 3: SaaS founder with €70,000 in B2C digital service revenue across the EU
You run a SaaS product. Your customers are individuals across the EU — no business accounts. Revenue is €70,000 across Germany, France, Poland, Spain and other EU countries.
VAT position: This is the most complex scenario. Digital services to consumers are taxed in the consumer’s country of residence. The OSS (One Stop Shop) scheme allows you to register once in Estonia and declare VAT owed across all EU countries through a single EMTA filing — rather than registering separately in each country. This is mandatory above the €10,000 cross-border digital services threshold. Unicount’s accounting team can help you navigate OSS registration and filing.
Scenario 4: Consultant with one Estonian client, €45,000 total revenue
You have mostly EU B2B clients but one client is an Estonian company. Your total revenue is €45,000, of which €8,000 is from the Estonian client.
VAT position: The €8,000 from the Estonian client is an Estonian taxable supply. If that alone — or combined with other Estonian taxable supplies — approaches or exceeds €40,000 in a calendar year, mandatory registration applies. In this scenario you are likely below the threshold on Estonian supplies alone, but you need to track this carefully. As turnover grows, this can change quickly.
What to put on your invoice depending on your VAT status
If you are not VAT-registered
Your invoice should not show any VAT. You charge the net amount only. If you are selling to a VAT-registered EU business, include their VAT number and a reference that the reverse charge mechanism applies.
Do not include a VAT number on your invoice if you do not have one — it is illegal to reference VAT registration you do not hold.
If you are VAT-registered and invoicing an Estonian client
Include your Estonian VAT number (starts with EE), charge 24% VAT, and show the VAT amount separately on the invoice.
If you are VAT-registered and invoicing an EU B2B client
Include your VAT number and the client’s VAT number. The invoice amount is net — no VAT charged. Include the text: “VAT reverse charged — Article 196 EU VAT Directive.”
If you are VAT-registered and invoicing outside the EU
Charge zero VAT. Mark the supply as zero-rated export or international service. Keep documentation confirming the client’s location outside the EU.
How Unicount handles VAT for your OÜ
VAT compliance is one of the areas where professional accounting support pays for itself most clearly. Monthly KMD filings, correct classification of intra-EU transactions, timely registration when thresholds are approached, and accurate input VAT recovery are all things that require consistent attention and knowledge of Estonian tax law.
Unicount’s accounting service covers all of this for your OÜ. We handle:
- Monitoring your turnover and notifying you when VAT registration becomes relevant
- VAT registration with EMTA when required or beneficial
- Monthly KMD preparation and filing
- INF annex where required
- OSS registration and filing for B2C digital service providers
- Input VAT recovery on qualifying expenses
- Correct invoicing guidance for your specific client mix
If you are currently unregistered and wondering whether you should be — or whether voluntary registration would benefit you — the right first step is a conversation with our team. It takes a few minutes and gives you a clear answer based on your actual revenue and expense structure.
Talk to the Unicount accounting team →
Summary: Estonian VAT at a glance for e-residents
| Question | Answer |
|---|---|
| Standard VAT rate in Estonia | 24% (since 1 July 2025) |
| Mandatory registration threshold | €40,000 taxable turnover in Estonia per calendar year |
| New EU-wide SME exemption threshold | €100,000 total EU turnover (from 2025) |
| Do B2B EU clients count toward the threshold? | Generally no — reverse charge applies |
| How to invoice EU B2B clients | Net amount only, reference reverse charge + client VAT number |
| How to invoice non-EU clients | Net amount, zero-rated, no VAT reference needed |
| Monthly filing deadline | 20th of the following month (KMD via EMTA) |
| Can you register voluntarily? | Yes, at any time |
| Late filing penalty | €10/day up to €300 per declaration |
| B2C digital services across EU | OSS scheme — one filing covers all EU countries |
Frequently asked questions
I have been invoicing for two years and never registered for VAT. Am I in trouble?
Not necessarily. If all your clients are VAT-registered EU businesses and you have been applying the reverse charge mechanism correctly, you may never have been required to register in Estonia. The key question is whether your Estonian taxable supplies (excluding reverse-charged B2B exports) ever exceeded €40,000. If you are unsure, contact Unicount or an Estonian accountant for a review of your specific situation.
My client is asking for my VAT number but I am not registered. What do I do?
First, establish whether registration is actually required for your situation. Many e-resident founders are asked for a VAT number by clients who assume it is standard — but if reverse charge applies to your supply, you do not need to be registered. If your client requires a VAT number for their own accounting system, voluntary registration may be worth considering. Contact us and we will help you assess whether it makes sense.
Can I reclaim the VAT I paid on my Unicount subscription, Wise fees, or software if I register?
You can reclaim VAT on qualifying business expenses, yes. Whether Unicount fees, Wise fees, and software subscriptions include VAT depends on how they are charged — some are charged with EU VAT, some are not. Once registered, your accountant will categorise these correctly and claim back what is reclaimable.
What happens if I exceed the €40,000 threshold and do not register within three days?
EMTA backdates your registration to the point your threshold was exceeded. You become liable for VAT on supplies made after that point, even if you did not charge it to clients. This can result in a significant unexpected VAT bill, payable from your own pocket. Do not let this happen — monitor your turnover and register proactively.
Does VAT registration affect how much tax I pay overall?
VAT is a pass-through tax — you collect it from clients and pass it to EMTA, minus the input VAT you recover. It does not directly affect your corporate profit or the income tax you pay personally. The main financial impact is the input VAT you recover on expenses, which is a genuine cash benefit.
Further reading on Unicount:
