Tax Law in Bulgaria — Rates, Residency and Obligations

Bulgaria's tax system is one of the simplest and lowest-taxed in the European Union — but the headline 10% flat rate is only the start of the picture. The real questions for residents, foreign nationals and companies are: am I a tax resident?, what counts as income?, do I need to register for VAT?, and how does my home country's tax treaty interact with the Bulgarian rules? This guide walks through the headline rates and the practical obligations behind them, with a focus on the situations that most often need professional input.

The headline rates at a glance

Bulgaria adopted the euro on 1 January 2026 (EUR 1 = BGN 1.95583). Figures below are current at the date of publication; statutory amounts should always be confirmed against the consolidated text in force at the time of acting.

Tax residency — the single most important question

Bulgarian tax law may treat an individual as a tax resident — irrespective of citizenship — where any of the following applies: they hold a permanent address in Bulgaria, they spend more than 183 days in Bulgaria during any 12-month period, their centre of vital interests is in Bulgaria, or they are sent abroad by the Bulgarian state, its authorities or organisations, or by a Bulgarian enterprise (the rule may also extend to accompanying family members).

The 183-day count is the easy test. The harder test in practice is the centre of vital interests — where a person's family, business and assets are most strongly tied. The statute is clear that permanent address alone is not enough where the centre of vital interests lies outside Bulgaria. Conversely, the totality of personal and economic ties can result in Bulgarian residency before the 183-day count is met; the analysis is holistic and fact-specific. Tax residency triggers a worldwide-income obligation — Bulgarian residents must declare all income, wherever earned.

Personal income tax in practice

The 10% headline rate applies to many categories, but the taxable base differs by category. Employment, self-employment, rental, business and asset-disposal income are calculated under different statutory rules and may involve advance tax or separate social-security obligations. Dividends paid to individuals are generally subject to a 5% final tax withheld at source; corporate shareholders and qualifying non-resident recipients are taxed under different rules and exemptions.

Self-insured persons (freelancers, sole traders, founders of single-member companies in certain configurations) may also owe pension and health-insurance contributions. The applicable percentage and base depend on the insured risks, minimum and maximum insurable-income limits, and any annual equalisation.

The annual personal-income declaration is generally due by 30 April of the year following the tax year. Late filing, non-payment or inaccurate declarations may result in statutory interest, administrative penalties and, depending on the circumstances, a tax audit or revision.

Corporate income tax

Bulgarian companies pay 10% corporate income tax on annual profit. The taxable result starts from the accounting result and is adjusted for items specifically recognised or disallowed under the Corporate Income Tax Act — including certain provisions, impairments, tax-on-expenses items and transfer-pricing adjustments. Tax losses may be carried forward for up to five years. The annual return is generally filed between 1 March and 30 June of the following year, and the corporate tax due is normally payable by 30 June.

For shareholders who are individuals, the 10% corporate tax combined with the 5% dividend tax gives a combined effective burden of 14.5% on profits actually taken out as dividends. The outcome differs for corporate shareholders, EU/EEA parent companies and treaty-entitled recipients, where participation exemptions, the Parent–Subsidiary Directive and treaty rules can change the result substantially.

VAT — when registration becomes mandatory

For a taxable person established in Bulgaria, mandatory VAT registration under Article 96 ZDDS generally arises when its annual turnover in Bulgaria exceeds EUR 51,130. The 2026 regime uses annual domestic turnover rather than the former rolling 12-month test. Separate registration grounds apply to intra-EU acquisitions, cross-border services and distance sales, and the EU small-enterprise scheme is governed by additional conditions.

For cross-border B2B supplies, the place-of-supply and reverse-charge rules may mean that Bulgarian VAT is not charged. This is legally distinct from a zero-rated intra-Community supply of goods — three different VAT concepts that are frequently conflated. The OSS regime may be relevant to certain cross-border B2C services and distance sales; IOSS is a separate regime principally concerning qualifying distance sales of imported goods, not the ordinary regime for SaaS or electronically supplied services.

The standard rate is 20%. A reduced 9% rate applies only to expressly enumerated supplies under the VAT Act; the categories have changed repeatedly in recent years and should be verified against the current law. Mistakes around reduced-rate eligibility, intra-Community triangulation and reverse-charge supplies are among the most common audit findings.

Crypto and digital-asset taxation

For individuals acting outside a business capacity, income from the sale or exchange of virtual currencies is generally calculated under Article 33 of the Personal Income Tax Act. Annual realised gains are offset against annual realised losses on the relevant transactions, after which the resulting amount is reduced by the statutory 10% expense allowance; the remaining taxable base is then taxed at 10%. (The statutory rate remains 10% — the expense allowance simply makes the effective burden on the net gain closer to 9%.) A disposal or exchange may trigger this calculation — including crypto-to-crypto exchanges — depending on the legal and factual characterisation. The article expressly refers to virtual currencies; tokens and other digital assets may require separate characterisation.

Where the activity is organised, continuous and carried on by occupation or as an enterprise, the revenue authorities may treat it as business activity rather than passive asset disposal — triggering self-employment registration, social-security contributions and full bookkeeping obligations. The assessment is fact-specific and is not determined solely by the number of transactions.

Staking, lending, airdrops and DeFi yield each raise their own characterisation issues. Practical advice — including the source-of-funds story your bank will ask for when you off-ramp to fiat — is covered in our companion guide on cryptocurrency taxation in Bulgaria.

Cross-border taxation and treaties

Bulgaria has roughly 70 double-taxation treaties (DTAAs), including with most EU member states, the UK, the US, Switzerland, the UAE and most large Asian economies. The treaties allocate taxing rights between the two jurisdictions and, in many cases, reduce or eliminate withholding tax on cross-border dividends, interest and royalties. Outcomes depend on the income type, the recipient's status, the specific treaty and the supporting documentation — and the practical application of any particular treaty must be checked for suspensions, amendments and other current restrictions (several treaties have been affected by recent suspensions).

Treaty benefits are not automatic. Depending on the income type, the amount and the treaty, the Bulgarian payer may need a tax-residency certificate from the recipient's home authority, a beneficial-ownership declaration, and in some cases advance treaty clearance. Domestic withholding rates and treaty outcomes are not uniform; the right combination has to be checked for each payment.

Bulgaria also participates in the OECD CRS and EU DAC2 automatic exchange of financial-account information. Subject to participating jurisdictions, reportable account status and applicable due-diligence rules, information on many foreign financial accounts held by Bulgarian tax residents may be reported automatically to the Bulgarian revenue authorities.

Common mistakes we see

The recurring pattern: people assume the 10% flat rate is the whole story, then discover the obligation only after a NAP letter arrives. The most common avoidable mistakes:

• Foreign founders becoming Bulgarian tax residents without declaring worldwide income.
• Crypto holders assuming gains are not taxable until off-ramped — and missing the Article 33 calculation method.
• Freelancers and digital nomads missing self-employment registration and social-security contributions.
• Property owners not paying local property tax and waste-collection fees.
• Companies crossing the VAT registration threshold mid-year and missing the registration deadline.
• Cross-border payments made without the treaty paperwork, leaving treaty-eligible recipients on the default domestic withholding rate.
• Inheritance and gift transactions structured without checking the local-rate exemptions for direct heirs.

When you need a tax lawyer (vs. an accountant)

Routine compliance — bookkeeping, monthly VAT returns, annual filings — is the accountant's domain. A tax lawyer becomes essential when the question is strategic rather than mechanical:

• Tax residency is uncertain or shifting (relocation, dual residency, treaty tie-breakers).
• Significant foreign income, foreign trusts or foreign-held companies are involved.
• A structure is being designed — M&A, IP holding, crypto activity, family-office vehicles.
• A NAP audit has started, or an assessment has been received.
• A refund or treaty benefit needs to be claimed and the standard claim has been refused.
• The position is being contested in administrative court — see our administrative disputes practice.

Timing is one of the biggest factors in tax outcomes. Tax planning is generally more effective when undertaken before the relevant transaction or tax period is completed. Once an audit or revision has begun, the available options usually narrow and the focus shifts from structuring to evidentiary and procedural defence.

For a structured overview of YARD Law's tax work — including residency planning, ongoing compliance, NAP audit defence and cross-border structuring — see our Tax Law practice page →

This guide was prepared by the legal team at YARD Law Co., a full-service law firm based in Sofia, Bulgaria. It is for general information only and does not constitute legal or tax advice on a specific case. Bulgarian tax legislation changes frequently — and the country adopted the euro on 1 January 2026 — so specific rates, thresholds and procedural deadlines should always be verified against the current consolidated text of the relevant Act before acting.