A Bulgarian Tax Residency Certificate is the single document that proves your tax status to every authority that matters — your home country's tax office, the counterparty in a double taxation treaty claim, your bank, and your foreign employer. Without it, you cannot access Bulgaria's network of 70+ double taxation treaties or stop your previous country from taxing your worldwide income.
This guide explains exactly how to obtain the certificate from Bulgaria's National Revenue Agency (NRA): which form to use, what documents to prepare, how long it takes, what it costs, and what causes applications to be rejected. It is written by a law firm that has handled this process for over 50 clients relocating to Bulgaria.
What Is a Tax Residency Certificate (and Who Needs One)
A Tax Residency Certificate (Udostoverenie za mestno litse) is an official document issued by the Bulgarian NRA confirming that a person or legal entity is a tax resident of Bulgaria for a specific calendar year. It is not a permit, a license, or an immigration document. It is proof of a tax relationship.
You need the certificate in three situations:
- To claim double taxation treaty (DTT) benefits. Bulgaria has signed double taxation agreements with over 70 countries, including Germany, France, the Netherlands, the UK, Austria, the US, and most EU member states. To invoke these treaties — and avoid being taxed twice on the same income — you must present a tax residency certificate from your country of residence to the other country's tax authority.
- To prove your tax status to foreign authorities. When you de-register from your home country (e.g., Abmeldung in Germany, or notifying HMRC in the UK), the local tax office will often ask for proof that you are now tax resident elsewhere. The NRA certificate is that proof.
- To satisfy bank, employer, or institutional requests. Foreign banks, employers paying cross-border salaries, and financial institutions conducting CRS (Common Reporting Standard) due diligence may request a tax residency certificate to determine where to report your financial information.
Key distinction: The certificate does not create tax residency. It proves it. You must already meet Bulgaria's tax residency criteria before the NRA will issue the certificate. If you have not yet established residency, read our complete guide to becoming a Bulgarian tax resident first.
Requirements: You Must Already Be a Tax Resident
Before you apply for the certificate, the NRA must be satisfied that you meet at least one of the criteria under Article 4 of the Income Taxes on Individuals Act (ZDDFL):
The 183-Day Rule
You have spent 183 or more days in Bulgaria within any 12-month period. Both the day of arrival and the day of departure count. This is the most straightforward criterion and the one the NRA considers strongest for first-time applicants.
Centre of Vital Interests
Bulgaria is your centre of vital interests — meaning your primary personal and economic ties are in Bulgaria. The NRA evaluates: where your family lives, where you own or rent property, where your business is registered, where your primary bank accounts are, and where you pay social security.
You can also qualify if you have a permanent address in Bulgaria combined with centre of vital interests, or if you are sent abroad by a Bulgarian employer or state institution.
Important: The 183-day rule is the cleanest path for first-year applicants. Centre of vital interests is inherently subjective — if your home country disputes it, the tie-breaker rules in the applicable double taxation treaty determine the outcome. We recommend 183+ days in year one, then relying on centre of vital interests from year two onward once your ties to Bulgaria are firmly established.
Not sure if you qualify? Book a free 15-minute consultation and we will assess your specific situation.
Documents You Need
The NRA requires the following when you submit your application:
- Completed Form OKd-273 — the official NRA application form titled "Request for Issuance of a Certificate of a Resident Person" (Iskane za izdavane na udostoverenie za mestno litse). Individuals and sole traders must complete Part II, which contains residency-related information. The form requires you to specify the country for which the certificate is needed and the calendar year it covers.
- Copy of your passport or ID card
- Copy of your Bulgarian residency card — issued by the Migration Directorate (not the municipality). This contains your LNCH (personal number for foreigners). See our EU residence permit guide for details.
- Proof of physical presence in Bulgaria — travel records (passport stamps, boarding passes, airline/railway confirmations), utility bills in your name, bank transaction records showing activity in Bulgaria, medical receipts from Bulgarian providers
- Rental agreement or property deed — proving your accommodation in Bulgaria. See our address registration guide for the process.
- Employment, freelance, or company registration documents — proving economic activity in Bulgaria
- Social security contribution records — confirming payments to the Bulgarian social security system
- Bank statements from Bulgarian accounts — showing regular financial activity
- Power of Attorney (if represented by a lawyer) — must be notarized; a copy is attached to the application
Practical tip: The NRA may request additional documents beyond this list if your case is not straightforward. Keep a running file of all presence-related evidence throughout the year — boarding passes, utility bills, bank statements, medical receipts. The more evidence you have ready, the faster the process.
Step-by-Step Process
- Gather your documents. Collect all items from the list above. Complete Form OKd-273 — download it from the NRA website or pick it up at your local NRA office. Fill in Part II with your residency information, specifying the country and calendar year for which you need the certificate.
- Submit to the NRA. You have three options: (a) in person at your competent territorial NRA office (the one where you are registered based on your permanent address), (b) by registered mail or licensed postal operator, or (c) electronically through the NRA's e-services portal using a Qualified Electronic Signature (QES) or a Personal Identification Code (PIC) issued by the NRA. If submitting through a lawyer, attach a copy of the notarized power of attorney.
- NRA reviews your application. The NRA verifies that you meet the tax residency criteria. If your documentation is complete and your case is clear (e.g., you have exceeded 183 days with strong evidence), processing is routine. If the NRA finds gaps, they will request additional information in writing — which pauses the processing clock until you respond.
- Receive your certificate. The certificate is issued for one calendar year and one specific foreign country. If you need certificates for multiple countries (e.g., Germany and the Netherlands), submit separate applications. Collect the certificate in person, through your authorized representative, or receive it by mail.
Submission location matters: If you submit to your competent NRA office (the one matching your registered address), processing takes 7 days. If you submit to a different NRA office, it takes 14 days because the application must be forwarded internally. Always submit to your competent office when possible.
We Handle the Entire NRA Process
From document preparation to submission and collection — we manage your tax residency certificate application end to end.
Book Free Consultation →Processing Time and Fees
| Scenario | Processing time | State fee |
|---|---|---|
| Submitted to competent NRA office | 7 days | Free |
| Submitted to non-competent NRA office | 14 days | Free |
| Additional documents requested by NRA | 7-14 days after response | Free |
| Apostille (if required by receiving country) | Additional 1-3 days | Contact the NRA directly for current apostille fees |
The NRA does not charge a state fee for issuing the tax residency certificate. The procedure is free of charge. This is confirmed by the NRA's own service description and multiple independent sources.
Your only potential costs are:
- Notarization of Power of Attorney — if you authorize a lawyer to submit on your behalf (typically EUR 10-30)
- Apostille — if the receiving country requires an apostille on the certificate (additional processing at the Ministry of Justice)
- Translation — the certificate is issued in Bulgarian; some countries require a certified translation
- Legal fees — if you engage a law firm to handle the process (varies by provider)
Timing tip: Apply in the second half of the calendar year — after you have accumulated enough days and evidence. The certificate covers the full calendar year (January to December), but the NRA assesses your status based on available evidence at the time of application. Applying too early (e.g., in February) when you have only been in Bulgaria for a few weeks will likely result in a request for additional documentation or a delay.
Common Reasons for Rejection
The NRA can refuse to issue a tax residency certificate. Based on our experience handling these applications, the most common reasons are:
- Insufficient physical presence. You have not spent 183 days in Bulgaria and your centre-of-vital-interests evidence is weak. The NRA looks at the totality of evidence — if you spent 120 days in Bulgaria but 200 days in Germany, you will not receive a Bulgarian certificate.
- Missing or incomplete documentation. Form OKd-273 is incomplete, supporting documents are missing, or the NRA requested additional information and you did not respond within the deadline.
- No economic activity in Bulgaria. You have a residence card but no business registration, no employment, no social security contributions, and no meaningful financial activity. The NRA may question whether Bulgaria is genuinely your centre of vital interests.
- Conflicting information. Your application states you were in Bulgaria for 200 days, but your passport shows frequent long trips abroad. Or your address is registered in Sofia but your utility bills show zero consumption.
- Outstanding tax obligations. While not a formal ground for refusal of the residency certificate itself, unresolved tax debts or missing annual tax returns can complicate the process and cause delays.
- Application for a future period. You cannot get a certificate for a calendar year that has not yet ended. You must apply during or after the calendar year in question, with sufficient evidence of presence.
If rejected: The NRA must provide a written reason. You can challenge the refusal through an administrative appeal. In our practice, most rejections stem from insufficient documentation rather than genuine ineligibility — a well-prepared re-submission with additional evidence usually resolves the issue.
Tax Residency Certificate vs. Residence Certificate
This is one of the most common points of confusion for foreign nationals in Bulgaria. These are two entirely different documents:
| Feature | Tax Residency Certificate | Residence Certificate (Registration Card) |
|---|---|---|
| Issuing authority | National Revenue Agency (NRA) | Migration Directorate |
| Purpose | Proves tax resident status for DTT claims | Confirms right to reside in Bulgaria |
| Legal basis | ZDDFL (Income Taxes on Individuals Act) | Law on Foreigners / EU Citizens Residency Act |
| Requirements | 183 days or centre of vital interests | Employment, business, self-sufficiency, or family |
| Fee | Free | EUR 7-36 |
| Validity | One calendar year, one country | 5 years (EU citizens) / varies (non-EU) |
| Gives you an LNCH? | No (you need one already) | Yes (issued with the card) |
| Grants tax residency? | No (proves it) | No (separate legal test) |
The residence certificate (registration card) is a prerequisite, not a substitute. You need the residence card first — it gives you your LNCH, which is required for NRA registration and tax filings. But having a residence card does not make you a tax resident. The two processes are governed by different laws and administered by different authorities.
For the residence card process, see our guide to address registration for foreigners and EU residence permit guide.
Need both? We handle the full chain — residence card, address registration, NRA tax registration, and tax residency certificate — as a single package. Get a quote.
Frequently Asked Questions
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What is the difference between a residence certificate and a tax residency certificate?
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Disclaimer: This article provides general information about Bulgarian tax law and does not constitute legal or tax advice. Tax residency determinations depend on individual circumstances. The NRA may update forms, procedures, and timelines — always verify current requirements on the official NRA website or consult our team for advice tailored to your specific situation. Last updated: April 6, 2026.