🇬🇧 United Kingdom vs 🇵🇹 Portugal
Tax residency, treaties and PE risk compared.
| Dimension | 🇬🇧 United Kingdom | 🇵🇹 Portugal |
|---|---|---|
| Residency rule | Statutory Residence Test (SRT) — ties + days | 183 days OR habitual residence on 31 Dec |
| Day threshold | 183 days | 183 days |
| Warning band | from 90d | from 150d |
| Tax range | 20–45% | 14.5–48% (NHR 20%) |
| Tax treaties | 130+ | 80+ |
| PE risk | Medium | Medium |
| Digital nomad visa | No | Yes |
| Best for | Returning expats using split-year treatment | IFICI / NHR 2.0 applicants in scientific and tech roles |
| Common pitfall | Even 16 days can trigger residency if you have 4+ ties to the UK. | Owning or renting a home on Dec 31 can establish residency regardless of day count. |
Verdict
United Kingdom and Portugal carry similar residency risk on day-count alone — the deciding factor is usually treaty coverage (130 vs 80) and your specific income mix.
Deep dive
🇬🇧 United Kingdom residency rules →
Deep dive
🇵🇹 Portugal residency rules →
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