United Kingdom → Portugal · tax
In plain termsThis corridor just changed. A new 2025 treaty replaced the 1968 one, so any pre-2026 summary is stale. Read the new text — and remember the UK exit rules still bite.
A brand-new treaty — in force 29 Dec 2025
The 2025 UK–Portugal Convention is in force ( Source GOV.UK 'Portugal: tax treaties' + HMRC DT15600 — the 2025 UK–Portugal Double Taxation Convention (SI 2025 No. 1300), signed in London 15 September 2025, entered into force 29 December 2025; effective in the UK from 1 Jan 2026 (WHT), 1 Apr 2026 (CT), 6 Apr 2026 (IT/CGT), and in Portugal from 1 Jan 2026 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source HMRC DT15600 / GOV.UK — the current Convention was signed 15 September 2025 in London (SI 2025 No. 1300) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source GOV.UK 'Portugal: tax treaties' (updated 8 January 2026) — the 2025 UK–Portugal DTC entered into force 29 December 2025 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source HMRC DT15600 / GOV.UK — the 2025 Convention replaced the 1968 UK–Portugal Convention (SI 1969 No. 599, in force 17 January 1969); the 1968 treaty is now marked 'not in force' and applied only until the 2026 effective dates of the new treaty Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source Autoridade Tributária English tax-residency rules page + CIRS Art. 16(1)(a) — resident if stayed in Portugal for more than 183 days (consecutive or interrupted) in any 12-month period beginning or ending in the tax year in question Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog.yes
2025-09-15
2025-12-29
yes
183 days
Dual residence — the new Article 4 cascade
If both countries call you resident, the 2025 treaty's Art 4 picks one: permanent home → centre of vital interests → habitual abode → nationality → mutual agreement. Portugal's door is more than Source Autoridade Tributária English tax-residency rules page + CIRS Art. 16(1)(a) — resident if stayed in Portugal for more than 183 days (consecutive or interrupted) in any 12-month period beginning or ending in the tax year in question Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog.183 days
Rungs: Source UK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.md Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source UK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.md Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source UK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.md Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog.5 rungs
yes
yes
The twistNew 2025 DTC five-limb cascade. Confirm entry-into-force dates before relying on the ladder — SI 2025/1300.
Employment exercised in Portugal
Three checks, not oneThe treaty employment rule sits in Source UK–Portugal 2025 DTC Art 14 — Income from Employment Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source UK–Portugal 2025 DTC Art 14(2)(a) — ≤183 days in any twelve-month period Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source UK–Portugal 2025 DTC Art 14(2)(a) — rolling twelve-month window Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source UK–Portugal 2025 DTC Art 14(2)(a)-(c) — all three limbs required Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog.Article 14
183
any twelve-month period commencing or ending in the fiscal year
yes
New numberingIn the 2025 treaty the employment rule is Article 14 and the relief article is Article 21 — different numbers from the 1968 text, so old cross-references no longer line up.
When both States tax the same income
The treaty relief method is Source UK–Portugal 2025 DTC Art 21 — Elimination of Double Taxation, UK credit for Portuguese tax Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. Source UK–Portugal 2025 DTC Art 21 — Elimination of Double Taxation Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog.ordinary tax credit
Article 21
UK-side traps — Portugal does not delete them
Client trapThe Statutory Residence Test, temporary non-residence CGT, the remittance→FIG shift from 6 April 2025 and State Pension uprating geography stay in force ( Source UK domestic rules reuse across destinations (uk_vn_tax / uk_side_traps): Statutory Residence Test, temporary non-residence CGT, remittance→FIG shift from 6 Apr 2025, State Pension uprating geography — the Portugal DTA does not delete them Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog.yes
Filed cells on this page
Evidence and sources18 dated facts for UK–Portugal tax: brand-new 2025 DTC replaced the 1968 treaty — in force 29 Dec 2025
The readable briefing above uses these cells. Open a source only when you need to verify a number, date, or legal gate.
- UK–Portugal income tax treaty (2025 Convention) is in forceGOV.UK 'Portugal: tax treaties' + HMRC DT15600 — the 2025 UK–Portugal Double Taxation Convention (SI 2025 No. 1300), signed in London 15 September 2025, entered into force 29 December 2025; effective in the UK from 1 Jan 2026 (WHT), 1 Apr 2026 (CT), 6 Apr 2026 (IT/CGT), and in Portugal from 1 Jan 2026checked Aug 2026
yes
Source GOV.UK 'Portugal: tax treaties' + HMRC DT15600 — the 2025 UK–Portugal Double Taxation Convention (SI 2025 No. 1300), signed in London 15 September 2025, entered into force 29 December 2025; effective in the UK from 1 Jan 2026 (WHT), 1 Apr 2026 (CT), 6 Apr 2026 (IT/CGT), and in Portugal from 1 Jan 2026
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- DTA signature date (current 2025 Convention)HMRC DT15600 / GOV.UK — the current Convention was signed 15 September 2025 in London (SI 2025 No. 1300)checked Aug 2026
2025-09-15
Source HMRC DT15600 / GOV.UK — the current Convention was signed 15 September 2025 in London (SI 2025 No. 1300)
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- DTA entry into force (current 2025 Convention)GOV.UK 'Portugal: tax treaties' (updated 8 January 2026) — the 2025 UK–Portugal DTC entered into force 29 December 2025checked Aug 2026
2025-12-29
Source GOV.UK 'Portugal: tax treaties' (updated 8 January 2026) — the 2025 UK–Portugal DTC entered into force 29 December 2025
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- The 2025 Convention replaced the 1968 treaty (read the new text, not the 1968 one)HMRC DT15600 / GOV.UK — the 2025 Convention replaced the 1968 UK–Portugal Convention (SI 1969 No. 599, in force 17 January 1969); the 1968 treaty is now marked 'not in force' and applied only until the 2026 effective dates of the new treatychecked Aug 2026
yes
Source HMRC DT15600 / GOV.UK — the 2025 Convention replaced the 1968 UK–Portugal Convention (SI 1969 No. 599, in force 17 January 1969); the 1968 treaty is now marked 'not in force' and applied only until the 2026 effective dates of the new treaty
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- UK domestic traps still apply when Portugal is the destinationUK domestic rules reuse across destinations (uk_vn_tax / uk_side_traps): Statutory Residence Test, temporary non-residence CGT, remittance→FIG shift from 6 Apr 2025, State Pension uprating geography — the Portugal DTA does not delete themchecked Aug 2026
yes
Source UK domestic rules reuse across destinations (uk_vn_tax / uk_side_traps): Statutory Residence Test, temporary non-residence CGT, remittance→FIG shift from 6 Apr 2025, State Pension uprating geography — the Portugal DTA does not delete them
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Art 4 tie-breakerUK–Portugal 2025 DTC Art 4(2) — dual-resident cascadechecked Aug 2026
permanent home → centre of vital interests → habitual abode → nationality → mutual agreement
Source UK–Portugal 2025 DTC Art 4(2) — dual-resident cascade
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Employment articleUK–Portugal 2025 DTC Art 14 — Income from Employmentchecked Aug 2026
Article 14
Source UK–Portugal 2025 DTC Art 14 — Income from Employment
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Short-stay day capUK–Portugal 2025 DTC Art 14(2)(a) — ≤183 days in any twelve-month periodchecked Aug 2026
183
Source UK–Portugal 2025 DTC Art 14(2)(a) — ≤183 days in any twelve-month period
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Day-count windowUK–Portugal 2025 DTC Art 14(2)(a) — rolling twelve-month windowchecked Aug 2026
any twelve-month period commencing or ending in the fiscal year
Source UK–Portugal 2025 DTC Art 14(2)(a) — rolling twelve-month window
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- All limbs requiredUK–Portugal 2025 DTC Art 14(2)(a)-(c) — all three limbs requiredchecked Aug 2026
yes
Source UK–Portugal 2025 DTC Art 14(2)(a)-(c) — all three limbs required
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Relief methodUK–Portugal 2025 DTC Art 21 — Elimination of Double Taxation, UK credit for Portuguese taxchecked Aug 2026
ordinary tax credit
Source UK–Portugal 2025 DTC Art 21 — Elimination of Double Taxation, UK credit for Portuguese tax
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Relief articleUK–Portugal 2025 DTC Art 21 — Elimination of Double Taxationchecked Aug 2026
Article 21
Source UK–Portugal 2025 DTC Art 21 — Elimination of Double Taxation
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Ordered rungs before the tie is settledUK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.mdchecked Aug 2026
5 rungs
Source UK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.md
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Nationality is a rung in this treatyUK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.mdchecked Aug 2026
yes
Source UK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.md
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Cascade ends in mutual agreementUK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.mdchecked Aug 2026
yes
Source UK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.md
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- What is different about this tie-breakerUK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.mdchecked Aug 2026
New 2025 DTC five-limb cascade. Confirm entry-into-force dates before relying on the ladder — SI 2025/1300.
Source UK–Portugal 2025 DTC Art 4(2); nguon/PT_SOURCES.md
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- A UK–Portugal social security agreement is in forceGOV.UK NI38 — Portugal is an EU social security agreement country for the UKchecked Aug 2026
yes
Source GOV.UK NI38 — Portugal is an EU social security agreement country for the UK
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
- Private pensions taxable only in the treaty residence state (Art 17, 2025 Convention)UK–Portugal 2025 DTC Art 17 (GOV.UK HTML, in force 29 Dec 2025) — subject to Art 18(1), pensions and similar remuneration paid to a resident of a Contracting State shall be taxable only in that Statechecked Aug 2026
yes
Source UK–Portugal 2025 DTC Art 17 (GOV.UK HTML, in force 29 Dec 2025) — subject to Art 18(1), pensions and similar remuneration paid to a resident of a Contracting State shall be taxable only in that State
Checked Aug 2026 · Band low · Status fresh
Method: figures past 2× SLA hide. See /method · /status · /changelog.
Common questions
Which UK–Portugal treaty is in force now?
The new 2025 Convention. It was signed in London on 15 September 2025 (SI 2025 No. 1300), entered into force 29 December 2025, and is effective from 1 January 2026 for withholding taxes, 1 April 2026 for corporation tax and 6 April 2026 for income tax and capital gains tax.
What happened to the 1968 treaty?
It is replaced. GOV.UK now marks the 1968 UK–Portugal Convention (SI 1969/599, in force 17 January 1969) as 'not in force'. It applied only until the 2026 effective dates of the new treaty, so old summaries are out of date.
Under the new treaty, when can Portugal tax my salary?
Article 14 (Income from Employment) taxes employment where it is exercised. You stay taxable only in the UK if all three limbs hold: present in Portugal no more than 183 days in any twelve-month period commencing or ending in the fiscal year, paid by a non-Portuguese employer, and the cost not borne by a Portuguese permanent establishment. The UK then relieves double tax by ordinary credit under Article 21.
How does the new treaty break a dual-residence tie?
Article 4 runs the standard cascade: permanent home → centre of vital interests → habitual abode → nationality → mutual agreement. Portugal's own door is more than 183 days or a habitual home under CIRS Art. 16 — the cascade, not the day count, decides.
Does the new treaty switch off UK tax traps?
No. The UK Statutory Residence Test, the temporary non-residence CGT rule, the move from remittance basis to the Foreign Income and Gains (FIG) regime from 6 April 2025, and State Pension uprating geography are UK domestic rules that a destination treaty does not delete.
UK → Portugal · four cells
Four machines a thread usually collapses
| Social security / totalization | yesSource GOV.UK NI38 — Portugal is an EU social security agreement country for the UK Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
|---|---|
| Treaty pensions | yesSource UK–Portugal 2025 DTC Art 17 (GOV.UK HTML, in force 29 Dec 2025) — subject to Art 18(1), pensions and similar remuneration paid to a resident of a Contracting State shall be taxable only in that State Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Foreign-income / remittance hinge | yesSource AT tax-residency rules — residents typically pay tax on all their income, whether from Portugal or abroad; non-residents only pay tax on Portugal-source income Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Home-side traps still on | yesSource UK domestic rules reuse across destinations (uk_vn_tax / uk_side_traps): Statutory Residence Test, temporary non-residence CGT, remittance→FIG shift from 6 Apr 2025, State Pension uprating geography — the Portugal DTA does not delete them Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
Why this beats a Facebook answer method
A screenshot from a group has no check month and no gazette link. A chatbot paragraph can mix OECD-model wording with the wrong pair. Here the cell either cites a primary source or stays an em dash — we refuse to invent the limb so you can hand the open chain to counsel.
Method: how a fact cell works. Desk with memory when cells move: firms. Canonical pair: /united-kingdom-to-portugal/tax.
Filed cells for this pair
Portugal stay · labour · tax
| Tax-residence day test | 183 daysSource Autoridade Tributária English tax-residency rules page + CIRS Art. 16(1)(a) — resident if stayed in Portugal for more than 183 days (consecutive or interrupted) in any 12-month period beginning or ending in the tax year in question Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
|---|---|
| Foreign / worldwide income | yesSource AT tax-residency rules — residents typically pay tax on all their income, whether from Portugal or abroad; non-residents only pay tax on Portugal-source income Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Long-stay instrument (filed) | 7 days/yearSource AIMA ARI Art. 90.º-A — the ARI holder must spend at least 7 days in Portugal in the first year and at least 14 days in each subsequent year (a light physical-presence rule, not a residence-for-tax rule) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Local earn gate (filed) | 2157 EUR/monthSource AIMA Art. 90.º highly-qualified activity — subordinate hire needs an employer declaration of a contract paying at least 1.5× the national average gross annual salary (€2,157/month) or 3× the IAS; for shortage occupations in ISCO major groups 1 and 2 the floor is at least 1.2× the average gross salary (€1,725.60/month) or 2× the IAS (€1,018.52/month). Reference years: 2023 (average salary), 2024 (IAS) Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
Continue from this pair
UK × Portugal stays named. Overlay → stay / earn / dest tax → tools.
Cross-check
Cross-check UK × Portugal
UK across six lands
| Land | Treaty | Relief | SSA | Open |
|---|---|---|---|---|
| Vietnam | yesSource UK–Vietnam DTA 1994; SI 1994/3216; GOV.UK Vietnam tax treaties Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource SI 1994/3216 Schedule Art 15 / Art 22; nguon/UK_VN_DTA_1994.md Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource GOV.UK Reciprocal agreements + NI38 country lists do not include Vietnam as a UK social security agreement partner Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | UK → Vietnam |
| Thailand | yesSource GOV.UK Thailand tax treaties — double taxation convention entered into force on 20 November 1981 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource UK–Thailand Convention Art 23 — UK credits Thai tax; Thailand credits UK tax, subject to domestic limits Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource GOV.UK Reciprocal agreements + NI38 country lists do not include Thailand as a UK social security agreement partner Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | UK → Thailand |
| Indonesia | yesSource DJP (pajak.go.id) tax treaty register — United Kingdom P3B in force (effective 1995-01-01) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource UK–ID Art 15 — 183 days within any continuous twelve-month period; relief is Art 21 — Article 21 ordinary credit method Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource GOV.UK Reciprocal agreements + NI38 country lists do not include Indonesia as a UK social security agreement partner Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | UK → Indonesia |
| Philippines | yesSource BIR Philippine Double Taxation Agreements list — United Kingdom treaty in force (effective 1979-01-01) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource UK–Philippines Convention Art. 21 — each State grants credit for qualifying tax paid in the other State, subject to the treaty limits Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource GOV.UK Reciprocal agreements — Philippines listed among UK bilateral social security agreement countries Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | UK → Philippines |
| Malaysia | yesSource GOV.UK — 1996 UK–Malaysia Double Taxation Agreement as amended by the 2010 Protocol — in force; HMRC DT12750: comprehensive Agreement (SI 1997/2987) entered into force 8 July 1998 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource UK–MY DTA Art 16 Dependent Personal Services (GOV.UK) — not Art 15 (independent) — Article 24 ordinary credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource GOV.UK Reciprocal agreements + NI38 country lists do not include Malaysia as a UK social security agreement partner Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | UK → Malaysia |
| PortugalHere | yesSource GOV.UK 'Portugal: tax treaties' + HMRC DT15600 — the 2025 UK–Portugal Double Taxation Convention (SI 2025 No. 1300), signed in London 15 September 2025, entered into force 29 December 2025; effective in the UK from 1 Jan 2026 (WHT), 1 Apr 2026 (CT), 6 Apr 2026 (IT/CGT), and in Portugal from 1 Jan 2026 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource UK–Portugal 2025 DTC Art 21 — Elimination of Double Taxation, UK credit for Portuguese tax Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource GOV.UK NI38 — Portugal is an EU social security agreement country for the UK Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | UK → Portugal |
Eight passports on Portugal 8 overlays
| Passport | Treaty | Relief | SSA | Open |
|---|---|---|---|---|
| AU | Signed, not in force | no treaty relief yet — Agreement signed, not in forceSource ATO / FITO status — AU–PT signed 30 Nov 2023 not yet in force; nguon/PT_SOURCES.md Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource DSS / Services Australia — Australia–Portugal international social security agreement (Portugal on the published partner list; ATO bilateral SSA table notes start 1 October 2002) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | AU → Portugal |
| SG | yesSource Portugal OECD MLI consolidated position + AT convention list — Portugal–Singapore Convention, Original signed 06-09-1999, entry into force 16-03-2001; IRAS lists Portugal among Singapore's Avoidance of Double Taxation Agreements Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource SG–PT Agreement Art 24 — Elimination of Double Taxation (Singapore credits Portuguese tax; Portugal credits Singapore tax) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource CPF Board / Singapore domestic CPF regime — no Singapore–Portugal social security / CPF totalisation agreement published; same gate as sg_vn_social_security_agreement_in_force (nguon/SG_SIDE_TRAPS.md pattern) Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | SG → Portugal |
| KR | yesSource Portugal OECD MLI consolidated position — Portugal–Korea Convention, Original signed 26-01-1996, entry into force 21-12-1997 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource KR–PT Convention Art 23 — Methods for Elimination of Double Taxation (credit; matches KR–TH/KR–MY pattern filed from Korean Ministry of Government sources) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource NPS social security agreements overview — Portugal is not among Korea’s published SSA partners (MOU lump-sum paths elsewhere do not equal an SSA) Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | KR → Portugal |
| CN | yesSource Portugal OECD MLI consolidated position + AT DTC summary table — Portugal–China Agreement, Original signed 21-04-1998, entry into force 08-06-2000 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource CN–PT Agreement Art 23 — Methods for Elimination of Double Taxation (China credits Portuguese tax; Portugal credits Chinese tax) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource MOHRSS / published China bilateral social security partner list (13 countries) does not include Portugal — same gate as cn_vn_social_security_agreement_in_force Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | CN → Portugal |
| JP | yesSource Portugal OECD MLI consolidated position + AT DTC summary table (Parliament's Resolution 50/2012) — Convention between the Portuguese Republic and Japan, Original signed 19-12-2011, entry into force 28-07-2013 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource JP–PT Convention Art 22 — Elimination of Double Taxation (Portugal credits Japanese tax; Japan credits Portuguese tax) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource Japan Pension Service — Status of Agreements in Force (24 partners) does not include Portugal Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | JP → Portugal |
| UKHere | yesSource GOV.UK 'Portugal: tax treaties' + HMRC DT15600 — the 2025 UK–Portugal Double Taxation Convention (SI 2025 No. 1300), signed in London 15 September 2025, entered into force 29 December 2025; effective in the UK from 1 Jan 2026 (WHT), 1 Apr 2026 (CT), 6 Apr 2026 (IT/CGT), and in Portugal from 1 Jan 2026 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource UK–Portugal 2025 DTC Art 21 — Elimination of Double Taxation, UK credit for Portuguese tax Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource GOV.UK NI38 — Portugal is an EU social security agreement country for the UK Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | UK → Portugal |
| CA | yesSource Portugal OECD MLI consolidated position + AT DTC summary table (Parliament's Resolution 81/00) + Finance Canada treaty list — Canada–Portugal Convention, Original signed 14-06-1999, entry into force 24-10-2001 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary foreign tax creditSource CA–PT Convention Art 22 — Elimination of Double Taxation (Canada deducts Portuguese tax; Portugal credits Canadian tax) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource CRA — Canada–Portugal social security agreement EIF 1 May 1981 (CPT55) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | CA → Portugal |
| US | yesSource US Treasury Convention text (signed Washington 6 September 1994) + Portugal OECD MLI consolidated list — US–Portugal income tax convention, entry into force 18 December 1995, generally effective from 1 January 1996 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary foreign tax creditSource US–Portugal 1994 Convention Art 25 — Relief from Double Taxation (US credit), behind the Art 1(4) saving clause Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource SSA — the U.S.–Portugal Agreement on Social Security (signed Lisbon 30 March 1988, TIAS 12121) entered into force 1 August 1989; it eliminates dual social-security coverage and can total periods for benefits. Unlike US–Malaysia, this coordination exists Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | US → Portugal |
Cells cite primary sources with check months. Method · Sources · Disclosure. Not personalised tax advice.
Named pair: From United Kingdom · UK → Portugal tax.
Also filed for Portugal: Australia · Singapore · South Korea · China · Japan · Canada · United States.