Q: Which invoice format is the statutory default in Estonia?

Under Section 7¹(7) of the Accounting Act , an e-invoice is presumed correctly formatted if it complies with EN 16931-1. The parties may agree on another relevant standard, including the Estonian EVS 923:2014 profile. Section 7¹(8) contains statutory exceptions rather than the format rule.

Q: What are the retention rules for electronic invoices in Estonia?

Under Section 12 of the Accounting Act , accounting source documents generally must be retained for seven years from the end of the financial year in which they were recorded. Machine-processable retention is normally required, but alternative readable formats are permitted in specified circumstances. The law does not impose a universal requirement to retain separate validation logs for every invoice.

Question 1

Is electronic invoicing mandatory for all B2B transactions in Estonia?

Accepted Answer

No. Estonia does not have a general automatic B2B e-invoicing mandate for every domestic transaction. Since 1 July 2025, Section 7¹(7) of the Accounting Act allows accounting entities registered as e-invoice recipients to request structured invoices from suppliers. The right applies subject to statutory exceptions, including certain security-related and confidential transactions.

Question 2

Can an Estonian supplier refuse a buyer's request for an e-invoice?

Accepted Answer

Generally, no. If an accounting entity is registered as an e-invoice recipient, the seller must provide a structured invoice when validly requested under Section 7¹(7). However, the exceptions in Section 7¹(8) must be considered. A PDF or paper invoice alone does not satisfy a valid structured e-invoice request.

Question 3

Is a standard PDF sent via email considered an electronic invoice in Estonia?

Accepted Answer

No. A standard PDF attachment is not a machine-processable e-invoice (masintöödeldav arve) under Section 7¹ of the Accounting Act. A valid structured e-invoice must use a suitable machine-readable format, such as EN 16931-compliant XML or an agreed alternative. However, PDF invoices may remain legally acceptable where structured e-invoicing is not required and the applicable VAT and accounting requirements are met.

Question 4

Which invoice format is the statutory default in Estonia?

Accepted Answer

Under Section 7¹(7) of the Accounting Act, an e-invoice is presumed correctly formatted if it complies with EN 16931-1. The parties may agree on another relevant standard, including the Estonian EVS 923:2014 profile. Section 7¹(8) contains statutory exceptions rather than the format rule.

Question 5

How does a company register to receive electronic invoices in Estonia?

Accepted Answer

An accounting entity can register as an e-invoice recipient through the e-Business Register, operated by RIK. Its authorised e-invoicing service provider may also submit the relevant information under Section 7¹(3). The register records the e-invoice operator identifier or another supported receiving channel. Peppol is one option, not a universal registration requirement.

Question 6

Are foreign businesses registered for VAT in Estonia affected by these rules?

Accepted Answer

Foreign businesses may have Estonian VAT obligations when making taxable supplies in Estonia. However, VAT registration alone does not automatically establish every accounting obligation under the Accounting Act. The application of the buyer-choice e-invoicing provisions to a foreign supplier depends on its legal status, activities and the relevant transaction. Businesses should distinguish VAT invoicing requirements from the scope of Section 7¹.

Question 7

Does Estonia operate a centralised government clearing portal?

Accepted Answer

No. Estonia does not operate a general government pre-clearance portal for domestic B2B invoices. Businesses exchange e-invoices through domestic service providers, local roaming arrangements or Peppol where supported. These delivery mechanisms are separate from VAT reporting to the Estonian Tax and Customs Board through KMD and KMD INF.

Question 8

What are the retention rules for electronic invoices in Estonia?

Accepted Answer

Under Section 12 of the Accounting Act, accounting source documents generally must be retained for seven years from the end of the financial year in which they were recorded. Machine-processable retention is normally required, but alternative readable formats are permitted in specified circumstances. The law does not impose a universal requirement to retain separate validation logs for every invoice.

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