What Bulgarian Companies Must Do After Euro Adoption (2026): Update Company Documents, Share Capital & Registry Filings

Bulgaria adopted the euro on 1 January 2026, becoming the 21st member of the eurozone and triggering a sweeping set of corporate compliance obligations for every company registered in the country. From limited liability companies (OODs) to joint-stock companies (ADs) and branches of foreign entities, the changeover demands that boards, CFOs and company secretaries convert registered share capital to EUR, amend foundational documents and complete precise filings with the Bulgarian Commercial Register, all within statutory deadlines. This guide to Bulgaria euro adoption company documents 2026 requirements provides the step-by-step checklists, sample resolutions and filing timelines that company officers and foreign investors need to act on now.

Mandatory dual pricing has been in force since August 2025, enforcement actions have already begun, and the final deadline to update corporate documentation falls on 31 December 2026.

Quick-reference compliance checklist:

1. Identify every corporate document referencing BGN amounts.
2. Calculate EUR equivalents using the irrevocable conversion rate.
3. Prepare and approve a shareholder resolution to convert share capital.
4. Amend articles of association (and bylaws where applicable).
5. Obtain any required notarial certification.
6. File the capital conversion and amended documents with the Commercial Register.
7. Update VAT invoicing, accounting systems and SAF-T reporting templates.
8. Amend commercial contracts, price lists and employment agreements.
9. Notify foreign shareholders and update cross-border documents (SPAs, escrow agreements).
10. Retain records of the conversion process for audit and regulatory review.

Overview: Legal Framework and Key Dates for Bulgaria Euro Adoption Company Documents 2026

The legal foundation for the changeover rests on Bulgaria’s Euro Adoption Act, confirmed by the European Commission’s convergence report of June 2025 and the subsequent Council decision. The European Central Bank’s Economic Bulletin confirmed that Bulgaria met all necessary criteria and formally joined the euro area on 1 January 2026. The official Bulgarian euro adoption site, Evroto.bg, published the national changeover plan together with all transitional dates relevant to businesses.

The irrevocable conversion rate was fixed at the longstanding currency-board peg. All monetary references in company documents, contracts and regulatory filings must be converted using this rate, applying the official rounding rules established by the Euro Adoption Act. Below is a timeline of the critical dates every company officer needs to track.

Industry observers expect the Commercial Register to experience a significant filing surge in Q3 and Q4 2026 as companies approach the final deadline, making early filing advisable to avoid processing delays.

Immediate Checklist for Company Officers, First 30, 90 and 365 Days

Every company registered in Bulgaria must take concrete corporate actions following the euro adoption. The practical effect will be that directors who delay risk missing statutory deadlines and facing enforcement measures. The following checklist divides actions into three phases.

First 30 Days (January 2026)

• Audit all BGN references. The CFO or financial controller should conduct a comprehensive review of all internal and external documents referencing Bulgarian lev amounts, articles of association, board minutes templates, employment contracts, supplier agreements, pricing schedules and bank mandates.
• Switch accounting systems to EUR. The finance team must configure ERP, invoicing and payroll systems to operate in EUR. All new invoices issued from 1 January 2026 must be denominated in euro.
• Begin dual-currency record-keeping. Maintain parallel records showing the BGN amount and the converted EUR amount during the transition period to support audit trails.
• Notify banks and payment providers. Confirm that all company bank accounts have been automatically converted. Verify IBAN continuity and standing payment instructions.
• Communicate with employees. Issue a staff notice confirming that salaries, bonuses and expense reimbursements will be paid in EUR, referencing the conversion rate applied.

30–90 Days (February – March 2026)

• Draft the shareholder resolution. Legal counsel or the company secretary prepares the resolution to convert share capital to euros and, where necessary, to amend the nominal value of shares. (See sample resolution below.)
• Convene shareholders. Schedule the general meeting (EGM or written resolution procedure if permitted by the articles) to approve the capital conversion and document amendments.
• Engage a notary (if required). For entity types requiring notarial certification of amended articles, particularly joint-stock companies (ADs), book the notarial appointment early.
• Amend commercial contracts. Begin a rolling review of customer and supplier contracts to replace BGN price clauses with EUR equivalents or insert automatic currency-conversion language.
• Update price lists and catalogues. Replace all published pricing with EUR amounts, ensuring compliance with the dual-pricing obligation that continues until the statutory end date.

90–365 Days (April – December 2026)

• File with the Commercial Register. Submit the amended articles, shareholder resolution and any notarial deeds to the Bulgarian Commercial Register. Industry observers expect processing times to lengthen as the year-end deadline approaches.
• Update public extracts and certificates. Request new registry extracts reflecting EUR-denominated capital for use in banking, procurement and cross-border transactions.
• Amend internal governance documents. Update board charters, committee mandates, delegations of authority and internal financial policies.
• Review insurance policies. Ensure that coverage limits, deductibles and indemnity caps are re-expressed in EUR.
• Conduct a final compliance audit. Before 31 December 2026, verify that no BGN-only references remain in any legally significant document.

Share Capital Euro Conversion Bulgaria 2026: Legal Mechanics and Sample Resolution

Converting registered share capital from BGN to EUR is the single most important corporate action following Bulgaria’s euro adoption. The Euro Adoption Act provides that all monetary amounts in company constitutive documents are to be recalculated using the irrevocable conversion rate and rounded to the nearest euro cent in accordance with prescribed rounding rules. The number of shares held by each shareholder remains unchanged; it is the nominal value per share that is recalculated.

The conversion follows a precise sequence:

1. Apply the fixed conversion rate to the total registered capital and to each share’s nominal value.
2. Round the per-share nominal value to two decimal places (the nearest euro cent), using the standard rounding rule (0.5 and above rounds up).
3. Recalculate the total registered capital as the product of the rounded nominal value multiplied by the total number of shares.
4. Record any rounding difference in the company’s equity reserves. The difference between the original converted amount and the rounded amount is posted to a capital adjustment reserve, which does not affect distributable profits.
5. Obtain the required corporate approval (see below).
6. File the conversion with the Commercial Register.

When Is Shareholder Approval Required?

Under Bulgarian corporate law, any change to the nominal value of shares or to the registered capital figure stated in the articles of association requires a shareholder decision. For an OOD, this means a resolution of the general meeting of shareholders (or a written resolution procedure if the articles permit). For an AD, the general meeting of shareholders must pass a resolution, typically with a qualified majority. Early indications suggest that companies using simplified written procedures where permitted can complete this step more efficiently.

A notarial deed is required whenever the articles of association of an AD are amended, including for capital-related changes. For OODs, notarial certification of the resolution itself is required in certain cases prescribed by law, though the notarial requirements for OODs are generally lighter than for ADs.

Sample Shareholder Resolution (Illustrative, Adapt to Specific Circumstances)

This sample text is provided for illustrative purposes only and does not constitute legal advice. Companies should engage qualified Bulgarian counsel to prepare the resolution appropriate to their entity type and articles.

RESOLUTION OF THE GENERAL MEETING OF SHAREHOLDERS OF [COMPANY NAME] OOD / AD Held on [DATE], at [LOCATION] RESOLUTION No. [●] The General Meeting of Shareholders of [Company Name], having considered the requirements of the Euro Adoption Act and the irrevocable conversion rate established for the Bulgarian lev to the euro, hereby RESOLVES:
1. To convert the registered capital of the Company from [AMOUNT] BGN to [AMOUNT] EUR, applying the irrevocable conversion rate of BGN 1. 95583 = EUR 1, rounded in accordance with applicable law.
2. To amend the nominal value of each share from [AMOUNT] BGN to [AMOUNT] EUR per share, the total number of [NUMBER] shares remaining unchanged.
3. To amend Article [●] of the Articles of Association to reflect the new registered capital and per-share nominal value in EUR.
4. To authorise the Manager / Board of Directors to execute all necessary filings with the Bulgarian Commercial Register, including submission of the amended Articles of Association and this Resolution.
5. To record any rounding difference arising from the conversion as a capital adjustment reserve in the Company’s accounts. Adopted unanimously / by [●] votes in favour.
[Signatures of shareholders / chairperson] The accounting entry to record the conversion typically involves debiting or crediting a “Capital Conversion Adjustment” reserve account for any rounding difference, with no impact on the profit and loss statement.

Auditors should be notified in advance so that year-end financial statements reflect the converted capital correctly.

Bulgarian Company Registry Euro Conversion: Filing Process

All amendments to registered capital and articles of association must be filed with the Bulgarian Commercial Register, which is administered by the Registry Agency. Filings can be submitted electronically through the Registry Agency’s online portal or in person at a regional office. Electronic filing is strongly encouraged given the likely practical effect of higher volumes and longer processing times toward year-end.

Required Documents by Entity Type

The filing package varies depending on the type of entity, but the core documents are consistent:

• Application form, the standard form for registration of changes (Form A4 for OOD; Form A5 for AD).
• Shareholder resolution (or minutes of the general meeting) approving the capital conversion and article amendments.
• Amended articles of association (full consolidated text reflecting all EUR amounts).
• Notarial deed (where required, mandatory for ADs; case-dependent for OODs).
• Declaration of truthfulness from the applicant (manager or authorised representative).
• Proof of payment of the state fee for the registration.

The state fee for electronic filing is generally lower than for paper filing. Processing times for standard amendments typically range from several business days to two weeks, but early indications suggest that the Registry Agency is processing euro-related filings on a priority basis during 2026.

After the filing is accepted, companies should request an updated certificate of good standing and current registry extract in EUR, these documents are frequently required for banking relationships, public procurement participation and cross-border transactions.

Corporate Governance Bulgaria Euro Adoption: Document Amendments

Beyond the articles of association and registered capital, a comprehensive compliance programme requires amendments to a wide range of corporate governance documents and commercial agreements. Any document that contains a fixed BGN monetary reference must be updated.

Notarial vs Internal Amendments

Not all document amendments require notarial certification. The general rule is:

• Notarial certification required: Amendments to the articles of association of an AD; certain OOD article amendments as prescribed by law; powers of attorney for registry filings.
• Internal approval sufficient: Board resolutions updating internal policies; management decisions amending price lists, templates and employee handbooks; addenda to commercial contracts signed by authorised representatives.

Sample articles-of-association amendment clause:

AMENDMENT TO ARTICLE [●], REGISTERED CAPITAL The following text: “The registered capital of the Company is [AMOUNT] BGN, divided into [NUMBER] shares with a nominal value of [AMOUNT] BGN each. ” is hereby replaced with: “The registered capital of the Company is [AMOUNT] EUR, divided into [NUMBER] shares with a nominal value of [AMOUNT] EUR each, converted from BGN in accordance with the Euro Adoption Act and the irrevocable conversion rate. ” For commercial contracts, a recommended approach is to execute a brief amendment or addendum replacing every BGN price or fee reference with the EUR equivalent, accompanied by a standard clause confirming the conversion rate used.

Employment contracts should be updated by written notice to each employee, specifying the new gross salary in EUR.

VAT Changes Bulgaria 2026: Tax, Accounting and SAF-T Implications

The euro changeover has direct consequences for tax compliance, accounting practices and financial reporting. The National Revenue Agency (NAP) has issued guidance on the transition, and businesses must implement changes across their tax and accounting systems.

VAT Invoicing and Dual Pricing

From 1 January 2026, all VAT invoices must be issued in EUR. During the mandatory dual-pricing period that commenced on 8 August 2025, businesses were already required to display prices in both BGN and EUR. Following the end of dual circulation for cash on 31 January 2026, the dual-pricing obligation continues for a further statutory period to protect consumers, after which businesses may display prices solely in EUR.

Tax returns, VAT declarations and all communications with the NAP must be submitted in EUR from the adoption date. Taxpayers should verify that their electronic filing credentials and software are compatible with the updated NAP portal requirements.

Accounting Entries and Rounding Policy

Bulgarian accounting standards require that opening balances for the 2026 financial year be converted from BGN to EUR using the irrevocable conversion rate. Any rounding differences are recorded in equity reserves (see the capital conversion accounting note above). Key points for finance teams:

• Recalculate all fixed-asset values, provisions and deferred tax balances in EUR.
• Ensure that intercompany loan balances and group reporting are aligned with the converted amounts.
• Update SAF-T reporting files to reflect EUR denominations. Bulgaria’s SAF-T framework, introduced alongside the euro changeover, requires that all standard audit file submissions use EUR from the effective reporting period.
• Retain BGN-denominated records for the statutory retention period to support any future tax audits covering pre-2026 periods.

Special Considerations for Foreign Investors Bulgaria Euro 2026

Foreign investors holding shares in Bulgarian companies or parties to share purchase agreements (SPAs), shareholder agreements or escrow arrangements must review all cross-border documents for currency-specific clauses. Contracts denominated in BGN will require amendment or will be automatically redenominated by operation of law, but explicit amendment is the safer course to avoid ambiguity.

Key areas for review include:

• Purchase price clauses in SPAs: Replace BGN amounts with EUR equivalents; update earn-out formulas and escrow thresholds.
• Shareholder agreements: Amend drag-along/tag-along price references, dividend distribution thresholds and capital call provisions.
• Transfer pricing documentation: Ensure that intercompany pricing policies reference EUR and that functional currency analysis is updated in transfer pricing reports.
• Currency hedging: Hedging instruments referencing BGN will need to be unwound or restructured given that the currency risk has been eliminated by the irrevocable peg and adoption.

Deadlines, Enforcement and Penalties for Non-Compliance

The statutory deadline for updating all corporate documentation and Commercial Register entries is 31 December 2026. Bulgarian authorities have signalled a firm enforcement posture. The National Revenue Agency and the Commission for Consumer Protection have already begun conducting inspections and imposing fines for breaches of the Euro Adoption Act.

Early enforcement data is instructive: within the first weeks of 2026, Bulgaria’s National Revenue Agency imposed substantial administrative fines for breaches of the Euro Adoption Act, including failures in dual-pricing compliance. The consumer protection body reported hundreds of complaints in the first weeks of January alone, primarily concerning pricing irregularities.

Companies that fail to update their registry filings by the deadline risk administrative penalties, inability to obtain valid registry extracts (which can block banking and procurement activity), and potential challenges to the validity of corporate actions taken after the deadline. The practical remedial step for companies that have missed earlier internal targets is to prioritise the filing immediately and engage legal counsel to minimise exposure.

Timeline and Comparison Table, Bulgaria Euro Adoption Company Documents 2026 Obligations by Entity Type

• Notable exception: Companies already expressing capital in EUR (common for entities established with dual-currency articles) may only need a confirmatory filing rather than a full amendment.
• Holding companies and SPVs: These entities should also update intercompany loan agreements, shareholder loan notes and any registered pledges referencing BGN amounts.

Conclusion and Recommended Next Steps

The Bulgaria euro adoption company documents 2026 compliance programme is not optional, it is a mandatory, time-bound legal obligation affecting every entity on the Bulgarian Commercial Register. The core actions, converting share capital, amending articles of association, filing with the registry, and updating tax and accounting systems, must all be completed by 31 December 2026. Companies that act early benefit from shorter processing times, reduced notarial queues and a clean compliance record. Those seeking specialist guidance can find a corporate lawyer in Bulgaria or explore the corporate practice area at Global Law Experts to connect with qualified professionals who advise on euro changeover compliance.

Disclaimer: This article provides general legal guidance on the corporate compliance requirements arising from Bulgaria’s euro adoption. It does not constitute legal advice. Companies should consult a Bulgarian-registered lawyer for advice tailored to their specific circumstances, entity type and documentation.

Sources

1. European Commission, Questions and Answers on Bulgaria’s Changeover to the Euro
2. European Central Bank, Bulgaria Joins the Euro Area
3. European Central Bank, Economic Bulletin: Bulgaria Adopts the Euro
4. Official Bulgarian Euro Adoption Site (Evroto.bg)
5. Reuters, EU Ministers Back Bulgaria’s Euro Adoption from 2026
6. VATCalc, Bulgaria SAF-T 2026