This is for UK residents planning a move to Bulgaria who need to understand when — and whether — their UK tax residence actually ends.
Moving to Bulgaria does not automatically end UK tax residence. The UK Statutory Residence Test (SRT) applies for each UK tax year and uses automatic overseas tests, automatic UK tests and the sufficient-ties test. Becoming Bulgarian resident is a separate question decided under Bulgarian rules.
Where we stand
Bulgaria is Sovereignty Global's core specialism, so this guide is informed but not neutral. It focuses on the practical mechanics of leaving the UK cleanly rather than treating any single step as sufficient on its own.
What decides when UK tax residence ends?
Moving to Bulgaria does not automatically end UK tax residence. The UK Statutory Residence Test applies for each UK tax year and uses automatic overseas tests, automatic UK tests and the sufficient-ties test. You cannot rely on the fact of a move alone — the outcome turns on days spent in the UK and the ties you keep there.
The key day-count rules
Spending 183 days or more in the UK makes you automatically UK resident. For people who were UK resident in one or more of the three preceding tax years, spending fewer than 16 UK days may meet an automatic overseas test; a higher limit applies to those who were not recently UK resident.
| Test | Condition | Outcome |
|---|---|---|
| Automatic UK test | 183 days or more in UK in tax year. | Automatically UK tax resident. |
| Automatic overseas test (recent UK resident) | Fewer than 16 UK days. | Automatically non-UK resident. |
| Automatic overseas test (not recent UK resident) | Fewer than 46 UK days. | Automatically non-UK resident. |
| Sufficient-ties test | Between the automatic tests. | Residence depends on UK ties and days. |
Which UK ties matter?
The sufficient-ties test considers family, accommodation, work, a 90-day tie and, for certain leavers, a country tie. The number of ties determines the number of UK days you can spend before becoming resident, so the safe limit cannot be stated without reviewing your recent residence history.
| Tie type | Description |
|---|---|
| Family tie | Spouse, civil partner or minor children resident in the UK. |
| Accommodation tie | Available accommodation in the UK that you use. |
| Work tie | Material employment or self-employment in the UK (more than 3 hours per day). |
| 90-day tie | More than 90 days in the UK in either of the previous two tax years. |
| Country tie | Strongest connection to a country (for leavers). |
Can split-year treatment help?
Split-year treatment may divide a departure year into a UK-resident part and a non-resident part. It is not automatic. Common cases include beginning full-time work abroad, accompanying a spouse or partner working abroad, or ceasing to have a UK home while establishing one overseas.
How Bulgaria fits in
Bulgaria generally applies 10% personal income tax and 10% corporate income tax. A Bulgarian company distribution to an individual is generally subject to 5% withholding. Becoming Bulgarian resident depends on Bulgarian domestic rules, including day count and centre-of-vital-interests considerations. Ending UK residence and starting Bulgarian residence are two separate tests — both need to line up.
A practical departure plan
| Step | Action |
|---|---|
| Track days | Count every UK day, including partial days. |
| Audit ties | Review family, accommodation, work and 90-day presence ties. |
| Plan departure date | Align with the UK tax year (6 April) where possible. |
| Notify authorities | File appropriate forms with HMRC and the Bulgarian authorities. |
| Review assets | Consider capital gains, pensions, rental income and other sources. |
| Model social security | Understand where you will pay social security and access healthcare. |
Thinking Bulgaria?
Sovereignty Global helps internationally mobile individuals structure Bulgarian residency and company arrangements around real commercial operations — residency, company formation, banking and ongoing administration — with the analysis starting from your actual facts. Explore Residency and Tax Strategy, or Book a Consultation.
Sources
- HMRC guidance: Statutory Residence Test (RDR3) and split-year treatment.
- UK–Bulgaria double-tax treaty.
- Bulgarian National Revenue Agency guidance.