Estonia KM for Foreign & Local Businesses — 2026 Guide

Estonia operates the most digitally integrated tax administration in the European Union — and arguably in the world. The Maksu- ja Tolliamet (MTA) electronic services portal handles essentially every taxpayer interaction with no paper involvement. Estonian e-residency, available to non-residents since 2014, allows foreign nationals to establish and operate Estonian businesses entirely remotely with digital signature, electronic banking, and electronic tax compliance. The KMD INF monthly reporting framework — operational since 2014 — captures transaction-level invoice data above EUR 1,000 in cross-matching detail that most EU Member States are still working toward implementing for ViDA 2030. And from 1 July 2025, the Estonian framework took another step forward: B2B invoice recipients can now require their suppliers to issue invoices in EU EN 16931-compliant electronic format, creating a market-driven evolution toward universal B2B e-invoicing well ahead of any ViDA mandate.

For a foreign vendor or Estonian-resident business operating in 2026, the implication is that Estonian KM (käibemaks — “turnover tax”, though structurally a VAT) is operationally one of the cleanest indirect tax environments in the EU, even though the rate (24% standard, raised from 22% on 1 July 2025, which itself was raised from 20% on 1 January 2024) is now among the higher EU standard rates. The rate increases reflect fiscal consolidation responding to elevated defense spending in the post-2022 security environment; the structural framework remained unchanged in design, only adjusted in level.

This guide is the operator’s view of how Estonian KM actually works in 2026. We cover the 24% standard rate and the 13% / 9% / 5% reduced rate framework, the e-residency angle for foreign vendors operating Estonian entities, the KMD INF monthly transaction reporting layer, the integration with MTA’s other digital services, and what changes are visible as the EU ViDA framework approaches its 2028–2030 milestones — though for Estonia, much of ViDA’s operational substance is already in place.

What this guide covers

01  Snapshot — Estonian KM at a glance

02  60-second self-check

03  Track 1 — Foreign EU vendor selling into Estonia

04  Track 2 — Non-EU vendor selling into Estonia (including e-residency route)

05  Track 3 — KMD INF, transit, and sector specifics

06  Track 4 — Local Estonian business

07  Cross-track essentials — e-invoicing, OSS/IOSS, ViDA

08  Common questions

09  Recent changes and the road to ViDA

10  Primary sources

01 · Snapshot — Estonian KM at a glance

Every figure here is restated and sourced inside the relevant track.

02 · 60-second self-check

03 · Track 1 — Foreign EU vendor selling into Estonia

Estonia’s small population (~1.3 million) and high digital-services adoption make it a meaningful B2C destination for distance-selling and a high-density B2B market for technology and consulting services.

3.1  Union OSS path

EU-wide €10,000 threshold. Above threshold, charge 24% Estonian KM through Union OSS quarterly returns. Reduced-rate classification per Estonian framework.

3.2  Direct KM registration

Mandatory when holding Estonian stock, importing as importer of record, intra-Community acquisitions in own name, services with Estonian place of supply outside reverse charge. The registration process is fully electronic and one of the fastest in the EU — typically 2–4 weeks from clean submission.

3.3  The Estonian KM number

Format: EE followed by 9 digits — e.g. EE100000000. Validated through VIES.

04 · Track 2 — Non-EU vendor selling into Estonia

4.1  Worked example — Kyiv Software Engineering LLC

Kyiv Software Engineering LLC is a Ukrainian software development outsourcing company providing services to European customers. The Estonian touchpoints:

• B2B software development services for Estonian fintech and SaaS companies (place of supply Estonia, Estonian recipient reverse-charges 24% KM — no Kyiv Software registration required).
• An Estonian-resident sister company set up via e-residency framework, holding intellectual property and certain consolidated functions (standard Estonian KM mechanics for the sister company).
• Direct SaaS subscriptions sold to a small Estonian B2C user base through a self-service portal (under Non-Union OSS framework — Kyiv Software registers in an EU MSI, typically Estonia itself for proximity).

The clean operational pattern: B2B services use reverse charge (no Kyiv Software KM registration); Estonian sister company handles its own Estonian KM as a domestic taxpayer; B2C SaaS goes through Non-Union OSS. The e-residency framework — Estonia’s distinctive offering — allows the Kyiv Software group to establish the Estonian sister company without physical presence, using digital signature for all corporate and tax filings.

4.2  Estonian e-residency

Estonia has issued e-residency digital identities to non-EU nationals since 2014. E-residency does not confer Estonian citizenship or physical residency; it is a digital identity that allows the holder to establish and manage an Estonian-incorporated business (typically an OÜ — Osaühing, equivalent to a limited liability company) entirely remotely. Operational implications for VAT:

• An e-residency-established Estonian OÜ is a Estonian-resident taxpayer for KM purposes.
• Standard KM registration mechanics apply — the OÜ registers above the EUR 40,000 threshold or earlier voluntarily.
• All KM administration is electronic through the MTA portal; the e-residency digital signature handles authentication.
• Common use case: non-EU technology entrepreneurs use e-residency OÜ structures as their EU presence for serving EU customers, with Estonia providing efficient KM compliance infrastructure.

4.3  Fiscal representative

Non-EU vendors registering directly (i.e. not through an Estonian e-residency OÜ) for Estonian KM must appoint an Estonian-resident tax representative under Article 20 of the KMS (Käibemaksuseadus). Budget EUR 3,000–EUR 6,000 per year.

05 · Track 3 — KMD INF, transit, and sector specifics

5.1  KMD INF — monthly transaction-level reporting

Since 1 November 2014, Estonian KM payers must submit a monthly KMD INF declaration listing all issued and received invoices above EUR 1,000 (excluding VAT). The declaration is filed alongside the KM return through the MTA portal. Operational mechanics:

• Invoice-level detail transmitted to MTA: supplier and customer registration numbers, invoice number, date, amount, VAT amount.
• Cross-matching with counterparty filings happens within days.
• Discrepancies trigger structured MTA queries with short response windows.
• Most accounting platforms with Estonian localisation (Merit, SmartAccounts, Erply, plus international Tier 1 ERPs) integrate with KMD INF natively.

5.2  Tallinn as Baltic transit hub

Tallinn’s port and air-cargo facilities serve as a Baltic transit hub for goods flows between the EU and Scandinavia/Russia/Finland (though Russian transit has substantially reduced since 2022). Goods movements through Tallinn customs follow standard EU import / transit procedures with Estonian customs administration.

5.3  Excise — digital services and digital nomads

Estonia’s high concentration of digital-services businesses (Skype, Wise, Bolt, Pipedrive, and many smaller tech companies originated here) produces a tech-density that shapes the KM operational environment. SaaS, cloud services, and digital products are subject to standard Estonian KM mechanics; the Non-Union OSS scheme is widely used by non-EU SaaS vendors registered in Estonia as MSI.

06 · Track 4 — Local Estonian business

6.1  The EUR 40,000 threshold

Estonian-resident businesses must register within 3 working days of crossing EUR 40,000 in annual turnover. The 3-working-day requirement is among the strictest registration deadlines in the EU.

6.2  Monthly filing and KMD INF

All Estonian KM payers file monthly. The standard KM declaration (Form KMD) and the KMD INF annex are due by the 20th of the month following the period. Most Estonian accounting platforms automate both filings.

6.3  Digital infrastructure

Estonia’s e-government infrastructure makes the day-to-day KM compliance experience among the smoothest in the EU: digital ID-card or Smart-ID authentication; mobile-app KM signing; instant filing acknowledgement; integrated bank-tax-customs data flows; near-real-time refund processing for clean claims.

07 · Cross-track essentials — e-invoicing, OSS/IOSS, ViDA

7.1  E-invoicing

B2G e-invoicing through Peppol BIS Billing 3.0 has been mandatory since 2014. From 1 July 2025, B2B invoice recipients can require suppliers to issue invoices in EN 16931 format — a market-driven evolution toward universal B2B e-invoicing well ahead of any ViDA mandate. Most Estonian B2B invoicing already operates in structured electronic format.

7.2  OSS, IOSS, VIES

Standard EU mechanics. Estonia is a popular MSI choice for non-EU vendors due to fast online registration and English-language MTA support.

7.3  ViDA timeline

Most ViDA 2028–2030 milestones operationally arrive in Estonia as confirmations of existing practice rather than transformations: KMD INF already covers transaction-level reporting; e-invoicing infrastructure is already in place. Cross-border DRR alignment by 1 July 2030 is the meaningful operational change.

08 · Common questions

Q. Estonian e-residency — how does it work for KM purposes?

E-residency gives you a digital identity to establish and manage an Estonian business. The business (typically an OÜ) is a Estonian-resident KM payer subject to standard rules. You handle everything online through the MTA portal using your e-residency digital signature. No physical Estonian presence is required. This is one of the most operationally efficient EU-entry structures for non-EU founders, with the caveat that the Estonian OÜ does not automatically convey EU operating rights for personal residency or movement.

Q. The rate moved 22% → 24% on 1 July 2025. How was the transition handled?

Tax point determines rate. Supplies with tax point on or before 30 June 2025 use 22%; supplies on or after 1 July 2025 use 24%. The earlier transition (20% → 22% on 1 January 2024) followed the same mechanics. MTA published transitional guidance for advance payments, long-term contracts, and subscription services covering each rate change.

Q. We make many B2B invoices below EUR 1,000. Do we report them in KMD INF?

No. KMD INF captures invoices above EUR 1,000 (excluding VAT). Below the threshold, invoices are reported only in the aggregate VAT return totals, not in invoice-level detail. The EUR 1,000 threshold reduces administrative burden for high-volume small-transaction businesses.

Q. Our B2B Estonian customer asked us to issue invoices via Peppol from 1 July 2025. Is that legally enforceable?

Yes. From 1 July 2025, Estonian B2B invoice recipients have the legal right to require suppliers to issue invoices in EN 16931-compliant electronic format (typically through Peppol). The supplier must comply. The change is a meaningful operational shift for foreign vendors selling B2B into Estonia who do not yet operate Peppol-compatible invoicing — consider implementing through a Peppol gateway provider.

09 · Recent changes and the road to ViDA

2014 — KMD INF launch

Monthly transaction-level invoice reporting introduced — predating most EU equivalents.

2014 — Peppol B2G mandate

Estonia among earliest EU adopters of Peppol-based B2G e-invoicing.

2024 — Rate increase 20% → 22%

Effective 1 January 2024, standard rate rose for defense and fiscal-consolidation funding.

2025 — Rate increase 22% → 24%; B2B Peppol right; 13% accommodation rate

Effective 1 July 2025, standard rate rose to 24%. From 1 July 2025, B2B invoice recipients can require Peppol invoices. From 1 January 2025, accommodation services moved to a new 13% reduced rate.

Outlook 2026–2030 — ViDA

ViDA arrives at an Estonian framework that is largely already aligned. Expect continued incremental refinement rather than transformation.

10 · Primary sources & official references

• Maksu- ja Tolliamet (MTA — Estonian Tax and Customs Board)
• Estonian VAT Act (Käibemaksuseadus)
• MTA e-services portal
• e-Residency programme
• VIES VAT number validation
• EU VAT Directive 2006/112/EC
• ViDA package — Council adoption 11 March 2025
• Peppol BIS Billing 3.0

Disclaimer & methodology

This guide was prepared by TaxDo’s editorial team in collaboration with practising Estonian KM advisors. Every numerical threshold, statutory citation, and procedural detail was verified against the primary sources listed in section 10 on the date of publication (27 May 2026). Always confirm the position applicable to your specific transaction with an Estonian-qualified tax advisor or directly with MTA. This guide is general information, not advice on any specific transaction. TaxDo accepts no liability for reliance on this guide in lieu of jurisdiction-specific professional advice.