This is for founders and investors who own — or are considering — a foreign or offshore company, and want to understand when its profit is still taxed at home.
A company incorporated abroad does not automatically keep its profit outside the tax net of its owner's home country. Controlled foreign company, or CFC, rules can attribute certain undistributed income of a foreign company to a resident shareholder or parent company, even when no dividend has been paid.
Where we stand
CFC exposure depends entirely on the owner's residence country. This guide explains the common building blocks so you know what to test — it is not a substitute for advice in your specific residence and company jurisdictions.
Why can an offshore company still create tax at home?
A company incorporated abroad does not automatically keep its profit outside the tax net of its owner's home country. CFC rules can attribute certain undistributed income of a foreign company to a resident shareholder or parent company, even when no dividend has been paid.
What are CFC rules designed to stop?
CFC rules target arrangements where residents control a low-taxed foreign company and park passive or mobile profit there. The details vary by country, but the central question is consistent: does a resident person control a foreign entity whose income is taxed too lightly compared with the home-country rate?
The common building blocks
| Question | Why it matters | Typical evidence |
|---|---|---|
| Who controls the company? | CFC regimes use ownership, votes, profit rights or related-party control tests. | Register extracts, shareholder agreements, option rights and family ownership. |
| Is the company low-taxed? | Many regimes compare foreign effective tax with domestic tax. | Tax returns, financial statements and local tax computations. |
| What income does it earn? | Passive income is often the main target; some regimes also catch non-genuine active income. | Contracts, invoices, payroll, IP licences and customer records. |
| Does it have substance? | People, premises, expenditure and decisions can affect exemptions or allocation. | Lease, payroll, board minutes, local management and operating records. |
| Where is management actually exercised? | A company may be resident where it is effectively managed, independently of CFC rules. | Decision records, travel, director location and banking authority. |
Which income is most exposed?
| Income type | Typical CFC risk | Why |
|---|---|---|
| Interest, royalties, dividends | Higher | Mobile, passive income is commonly within CFC rules. |
| IP income without real development activity | Higher | Authorities test whether functions and people match the IP return. |
| Intra-group services | Medium to high | Pricing and substance must support the service margin. |
| Trading income with staff and operations | Lower, but not zero | Genuine local activity may support exemptions, subject to local law. |
| Consulting billed by a company managed from the owner's home | High | May be taxed locally through CFC, management-and-control or PE rules. |
Why the DIY offshore structure often fails
A common mistake is incorporating a company in a low-tax location while the owner lives elsewhere, signs contracts, does the work, directs payments and makes every commercial decision from home. The structure can fail on several grounds at once: CFC attribution, company tax residence based on effective management, permanent establishment, transfer pricing and personal tax on dividends or salary.
A simple example
Assume a person remains tax resident in Country A and owns 100% of a company in Country B. The company earns investment income or consulting income, pays little local tax and has no employees or real office in Country B. Country A may tax the owner on attributed CFC income before any dividend is declared, or regard the company as managed in Country A. The answer depends on Country A's exact law, treaty position and facts.
What substance really means
Substance is not a virtual-office invoice or a local nominee director who does not participate. It generally means that the entity has people, premises, operating expenditure and decision-making appropriate to the income it earns. The level needed depends on the business, but the activity must be real and documented.
How to assess risk before incorporation
| Step | What to do |
|---|---|
| Map ownership | Include family, trusts, options and related entities. |
| Identify your tax residence | Review domestic residence tests and any treaty tie-breaker. |
| Classify projected income | Separate active trading, services, interest, royalties, dividends and IP returns. |
| Compare tax outcomes | Model company tax, CFC attribution, personal tax and withholding. |
| Design real operations | Place decision-makers, staff, contracts and expenditure where activity genuinely occurs. |
| Obtain written advice | Use advisers in both the owner's residence country and company jurisdiction. |
How Bulgaria fits into the picture
Bulgaria has CFC provisions consistent with the EU Anti-Tax Avoidance Directive, and Bulgarian tax residents with foreign controlled entities should obtain advice before assuming foreign profits are outside Bulgarian tax. Conversely, a Bulgarian company operated from another country may be tested under that other country's CFC and effective-management rules.
Thinking Bulgaria?
Sovereignty Global builds Bulgarian company and residency structures around genuine operations — the substance, management and documentation that CFC and effective-management rules actually test. Explore Tax Strategy and Bulgaria, or Book a Consultation. Related: how to leave tax residency cleanly and centre of vital interests.
Sources
- OECD and EU anti-avoidance materials.
- EU Anti-Tax Avoidance Directive.
- Relevant domestic CFC legislation and tax-authority guidance. CFC rules differ substantially by residence country; obtain country-specific advice before incorporating.