Bulgaria 2026: Corporate Compliance Checklist After Euro Adoption

Bulgaria officially adopted the euro on 1 January 2026, replacing the Bulgarian lev (BGN) and triggering a cascade of corporate obligations that every company operating in the country must now address. From converting registered capital and updating articles of association to restating financial accounts, amending contracts and reconfiguring payroll systems, the scope of Bulgaria euro transition compliance work is substantial. This practical checklist consolidates every action that CFOs, company secretaries, general counsel and SME owners need to complete, organised by function, entity type and deadline, so that no filing is missed and no legal exposure is created by inaction.

Quick Summary, What Changed and Immediate Actions for Euro Adoption Bulgaria Companies

The euro became Bulgaria’s sole legal tender on 1 January 2026. All monetary amounts expressed in Bulgarian leva, in legislation, contracts, corporate documents and accounting records, must now be read, interpreted and, where necessary, formally converted into euros. The irrevocably fixed conversion rate, established when Bulgaria joined the eurozone, governs every translation from BGN to EUR. For companies, this is not merely an accounting exercise: it touches corporate governance, commercial relationships, employment terms and regulatory filings.

The following six actions should be treated as immediate priorities, ideally completed within 30 days of the changeover date:

• Bank accounts. Confirm that all BGN accounts have been converted to EUR by your bank; verify IBAN continuity and update treasury records.
• Commercial Register. Assess whether your entity type requires a formal filing to reflect the new capital denomination in euros and prepare the necessary shareholder or board resolution.
• Accounting systems. Switch the functional and reporting currency to EUR, restate opening balances and apply the official rounding rules.
• Contracts. Identify all agreements that reference BGN amounts, pricing, thresholds, indemnity caps, earn-outs, and prioritise amendments or confirmatory notices.
• Payroll. Convert gross and net salary figures, update employment contracts and notify employees in writing.
• Rounding policy. Adopt an internal rounding policy consistent with the Euro Adoption Act’s “in favour of the consumer/payee” principle for all customer-facing and employee-facing conversions.

Registry and Registered Capital, How to Convert Company Capital to Euros

Yes, Bulgarian companies must ensure their registered capital is expressed in euros following euro adoption, though the mechanism differs by entity type.

Conversion Mechanics and the Fixed Rate

Under the Euro Adoption Act, all references to the Bulgarian lev in statutory instruments and corporate documents are deemed automatically converted at the irrevocably fixed exchange rate. In practice, this means that the Commercial Register will treat existing BGN capital figures as their EUR equivalents without a company needing to take any affirmative step for the “deemed” conversion to take legal effect. However, to ensure clarity in official records and to eliminate discrepancies when issuing share certificates, applying for financing or entering transactions, companies should file a formal amendment reflecting the EUR-denominated capital figure.

The irrevocably fixed rate is applied to convert the nominal value of each share or partnership interest. The resulting EUR figure is then rounded according to the rules prescribed by the Euro Adoption Act, generally to the nearest cent, with specific provisions to prevent rounding from reducing total capital below the statutory minimum.

Filing Steps and Required Documents for the Company Registry Euro Conversion

The process for updating registered capital at the Commercial Register typically involves the following steps:

1. Convene a general meeting of shareholders (for an OOD) or a general assembly (for an AD) and adopt a resolution to amend the articles of association to reflect the capital in euros.
2. Prepare updated articles of association or a memorandum of association showing the new EUR capital figure and, where relevant, the new nominal value per share.
3. Execute the resolution in the form required by law, notarised minutes for an AD; written minutes with the requisite majority for an OOD.
4. File an application for re-registration or amendment at the Commercial Register, attaching the resolution, updated constitutive documents and any applicable state fee.
5. Obtain confirmation of the updated entry and retain a certified extract for corporate records.

Sample Resolution Language

The following is indicative wording that can be adapted for a shareholders’ resolution of an OOD:

“RESOLVED that, in connection with the adoption of the euro as the official currency of the Republic of Bulgaria effective 1 January 2026, the registered capital of [Company Name] OOD, previously stated as BGN [amount], shall be re-denominated to EUR [converted amount] at the irrevocably fixed exchange rate. The nominal value of each share in the capital shall accordingly be EUR [value per share]. The articles of association shall be amended to reflect the foregoing.”

Comparison: Obligations by Entity Type

Company Documents and Corporate Records, Which to Update After Euro Adoption

Every corporate document that contains a reference to the Bulgarian lev should be reviewed and, where necessary, formally amended to reflect the euro.

Documents Requiring Review

• Articles of association / memorandum of association. Capital, share values, thresholds for decision-making tied to monetary amounts.
• Share ledgers and certificates. Nominal values, transfer prices and any pre-emption price references.
• Board and shareholder minutes. Historical references do not need amendment, but any forward-looking authorities (e.g., authorised capital ceilings) should be restated.
• Powers of attorney. Monetary limits in proxies and mandates.
• Statutory books and registers. Internal registers of members, directors and beneficial owners that record capital contributions.
• Corporate seals and letterheads. If these reference the currency, update accordingly.

Ordinary vs Special Resolutions

For an OOD, amending the articles of association to update articles of association Bulgaria-wide after the euro changeover typically requires a resolution adopted by a majority representing more than three-quarters of the company’s capital, unless the articles provide otherwise. For an AD, amendments to the statutes require a qualified majority at a general assembly meeting, with notarisation of the minutes. Companies should check whether their existing constitutive documents prescribe a different threshold.

Sample Amendment Clause

“Article [X] of the Articles of Association is hereby amended to read as follows: ‘The registered capital of the Company is EUR [amount], divided into [number] shares, each with a nominal value of EUR [value].’”

Where additional provisions reference BGN, for instance, caps on managing director authority, dividend thresholds or reserves, each such clause should be restated in EUR using the fixed conversion rate.

Where to File

Updated constitutive documents are filed at the Bulgarian Commercial Register (part of the Registry Agency). Depending on the nature of the company’s activities, notifications may also need to be sent to sector-specific regulators (e.g., the Financial Supervision Commission for insurance or investment companies) and to the company’s banks to update signature cards and authority limits.

Accounting, Tax and Financial Reporting Changes After Euro Adoption

Euro adoption fundamentally changes the reporting currency for all Bulgarian entities, requiring a coordinated transition across statutory accounts, tax returns and management reporting.

Audit and Statutory Accounts

From the 2026 financial year onward, all statutory financial statements must be prepared in euros. Companies must restate opening balances as at 1 January 2026 from BGN to EUR at the fixed conversion rate. Comparative figures for the prior year should likewise be translated. The rounding rules prescribed by the Euro Adoption Act apply, amounts are generally rounded to the nearest cent, and total equity must not be reduced as a result of rounding adjustments. Any immaterial rounding differences are typically recognised in retained earnings or a designated rounding reserve.

Tax Filings and VAT Invoicing

Corporate income tax returns, advance tax instalments and all filings with the National Revenue Agency (NRA) must now be denominated in euros. For VAT, all invoices issued from 1 January 2026 must state amounts in EUR. During a transitional period, dual display of prices (BGN and EUR) may be required for consumer-facing transactions as a consumer protection measure, but the legally operative amount on a VAT invoice is the EUR figure. Companies should update their ERP and invoicing software to ensure that tax identification numbers, invoice templates and automatic calculations reflect the new currency.

Financial Reporting Euro Bulgaria, Comparison by Company Size

IFRS and Local GAAP Considerations

Entities reporting under IFRS should note that the change in functional currency from BGN to EUR is not a change in accounting policy, it is a factual change resulting from the legal adoption of a new currency. No restatement under IAS 8 is required. Instead, IAS 21 governs the translation of comparative periods. Entities applying Bulgarian National Accounting Standards follow analogous guidance issued by the Ministry of Finance.

Contracts, Pricing and Commercial Arrangements, Contract Currency Bulgaria

Existing contracts denominated in BGN remain legally valid, the lev amounts are automatically deemed to be their EUR equivalents at the fixed rate. However, relying solely on the statutory deeming provision creates practical risks, particularly for long-term agreements.

Contracts to Prioritise

• Loan and facility agreements. Interest rate references, repayment schedules, financial covenants and material adverse change (MAC) clauses.
• Supply and distribution agreements. Pricing schedules, volume rebates and penalty clauses stated in BGN.
• Lease agreements. Rent, service charges, indexation mechanisms and deposit amounts.
• Insurance policies. Sum insured, deductibles and indemnity caps.
• Shareholder agreements and joint venture contracts. Tag-along/drag-along price floors, put/call option strike prices and deadlock buy-out valuations.

Sample Currency Amendment Clause

“With effect from 1 January 2026, all references in this Agreement to ‘BGN’ or ‘Bulgarian leva’ shall be read and construed as references to ‘EUR’ or ‘euro’, converted at the irrevocably fixed exchange rate established upon the Republic of Bulgaria’s adoption of the euro. All payment obligations, thresholds and monetary limits expressed in BGN shall be deemed restated in EUR at such rate. The Parties confirm that this conversion does not constitute a novation, amendment or variation of any other term of this Agreement.”

Managing FX Exposures and Invoicing

For cross-border contracts already denominated in EUR, no action is necessary regarding the currency itself, but parties should review governing-law clauses and dispute resolution provisions to confirm that the changeover does not trigger any “currency event” or disruption clause. Contracts governed by foreign law that reference BGN may require a formal addendum, as the statutory deeming provision of the Bulgarian Euro Adoption Act may not be automatically recognised in other jurisdictions. Industry observers expect that the practical effect of euro adoption on cross-border contracts will be a simplification of payment flows, but companies should proactively circulate confirmatory notices to counterparties to avoid disputes over rounding or payment mechanics.

Banking, Payments and Operational Systems

Bulgarian banks converted all BGN-denominated accounts to EUR automatically on the changeover date, preserving existing IBANs. Companies should nevertheless verify the following:

• Account statements. Confirm that the converted EUR balance matches the expected figure (BGN balance divided at the fixed rate).
• Standing orders and direct debits. Verify that recurring payment instructions have been correctly converted and that no payments have been duplicated or missed.
• SWIFT/BIC notifications. Inform international counterparties and correspondents of the currency change; update payment instructions on invoices and purchase orders.
• POS and e-commerce terminals. Ensure that merchant acquiring agreements, point-of-sale devices and online payment gateways process transactions in EUR.
• Treasury management systems. Reconfigure cash-pooling arrangements, inter-company netting and FX hedging positions (BGN hedges are now redundant).

Employment, Payroll and Benefits

Employment contracts that state remuneration in BGN are automatically deemed to refer to their EUR equivalents, but employers must take affirmative steps to ensure transparency and compliance with labour law.

• Payroll system conversion. Update gross salary, net salary, social security contribution bases and personal income tax withholding calculations to EUR. Apply rounding in favour of the employee where the conversion produces fractions of a cent.
• Written employee notices. Issue a written notice or addendum to each employee confirming the EUR-denominated salary, any rounding adjustment applied and the effective date. While the statutory deeming rule means that a formal contract amendment may not be legally required, best practice, and the approach recommended by the labour inspectorate, is to document the change in writing.
• Collective bargaining agreements. If a collective agreement references BGN thresholds (e.g., bonus triggers, shift premiums, overtime rates), prepare an amended schedule restating all figures in EUR.
• Statutory thresholds. The minimum wage, social security ceilings and other regulatory thresholds are restated in EUR by the relevant government decrees, verify that payroll software reflects the current EUR-denominated figures.

M&A, Corporate Reorganisations and Financing Events

For deal teams with transactions in flight at the time of euro adoption, the changeover introduces practical, though generally manageable, considerations across the transaction lifecycle.

• Purchase price mechanics. If the SPA states a price in BGN, the statutory deeming rule converts it to EUR. Parties should execute a confirmatory side letter to avoid ambiguity, particularly where completion accounts, locked-box mechanisms or price adjustment formulas are involved.
• Escrow and retention amounts. Confirm with the escrow agent that the fund has been converted and that release mechanics operate correctly in EUR.
• Earn-out and deferred consideration. Review earn-out targets stated in BGN revenue or EBITDA thresholds, the conversion may produce amounts that, after rounding, differ slightly from the parties’ original commercial intent. A brief addendum confirming the restated EUR figures is prudent.
• Bank guarantees and security interests. Guarantees denominated in BGN are deemed converted, but the beneficiary’s bank and the guarantor’s bank should each confirm the EUR amount in writing. Pledges over receivables, bank accounts or shares should be reviewed to ensure that the security documentation reflects the new currency.
• Regulatory filings. Merger control notifications, foreign investment filings and sector-specific approvals that reference transaction values in BGN should be updated or supplemented with the EUR equivalent.

Timeline and Consolidated Compliance Checklist for Euro Adoption Bulgaria Companies

The following timeline organises every corporate obligation into four phases. Companies that have not yet completed the immediate actions should treat them as urgent.

Conclusion

Euro adoption is the most significant operational and legal transition for Bulgarian companies since EU accession. The corporate obligations are wide-ranging, from capital conversion and registry filings to accounting migration, contract amendments and payroll updates, but they are manageable when approached systematically. Companies that act within the timeline set out above will minimise legal risk and operational disruption. Those that delay face compounding complications as banks, regulators and counterparties increasingly expect EUR-denominated documentation. For tailored guidance on any aspect of Bulgaria euro transition compliance, consult a corporate lawyer in Bulgaria through the Global Law Experts directory.

Sources

1. Evroto, Official Website for Adoption of the Euro in the Republic of Bulgaria
2. European Central Bank, Bulgaria Changeover Guidance
3. European Parliament Think Tank, Bulgaria Euro Adoption Overview
4. RÖDL & Partner, Euro in Bulgaria Insight
5. EY Bulgaria, Adoption of the Euro
6. Recht.bg, Adoption of the Euro in Bulgaria
7. KDP-law, What Companies Should Prepare For