Desk 3 · two passports × one land · verified 2026-08
2 lenses differ on this land. Highlighted rows are where filed cells disagree — never invented scores.
Verified 2026-08MethodSourcesSame land. Different home law. Cells come from each nationality × destination overlay.
Australian passport
Australia keeps Super, CGT event I1 and Age Pension rules on the Australian folder — the DTA sits between folders.
AU → Thailand taxFrom AustraliaAmerican passport
The US taxes citizens worldwide; a saving clause often keeps the US return even when a treaty exists.
US → Thailand taxFrom United StatesOverlays: AU → Thailand · US → Thailand · Home × land · Two dests.
| Lens | Australia | United States |
|---|---|---|
| Treaty | yesSource [1989] ATS 36; Australian Treasury income tax treaties list — Thailand status In force Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource US–Thailand Income Tax Convention, signed Bangkok 26 Nov 1996; Art 30 general effective date 1 Jan 1998 (irs.gov/pub/irs-trty/thailand.pdf) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Employment short-stay | 183Source AU–TH DTA Art 15(2)(a) — ≤183 days in the tax year / year of income of the other State Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | 183 daysSource US–TH DTA Art 16 Dependent Personal Services (IRS thailand.pdf); relief already flagged in us_th_ftc_relief_art25 — short-stay day ceiling Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Relief (double tax) | ordinary tax creditSource AU–TH DTA Art 24 — Methods of elimination; Australia and Thailand each allow a capped credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource US–TH DTA Art 16 Dependent Personal Services (IRS thailand.pdf); relief already flagged in us_th_ftc_relief_art25 — Article 25 ordinary credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Art 4 | Cascadepermanent home → habitual abode → closer personal and economic relationsSource AU–TH Agreement Art 4(3) (rd.go.th/english/859.html); citizenship/nationality is a factor in the third limb under Art 4(4) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | Cascadepermanent home → centre of vital interests → habitual abode → nationalitySource US–Thailand Convention Art 4(2) — dual-residence tie-breaker cascade Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| SSA / totalization | noSource DSS — Australia international social security agreements list (32 partners) does not include Thailand Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource SSA — U.S. International Social Security (Totalization) Agreements list does not include Thailand Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Treaty pensions | yesSource AU–TH Agreement Art 18(1) — subject to Art 19, pensions and annuities taxable only in the residence State Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource US–Thailand Convention Art 20(2) — social security/public pensions taxable only in the paying State; exception to the saving clause Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Foreign-income hinge | yesSource AU–TH Agreement Art 3(4) — where the other State taxes only remitted income, treaty relief applies only to the remitted portion Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource Thailand Revenue Code §41 para 2 (bringing foreign assessable income into Thailand) Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Home-side traps | yesSource au_vn_tax / AU-side traps — residency tests, CGT deemed disposal, superannuation reuse across destinations Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | yesSource nguon/US_SIDE_TRAPS.md — FBAR / Form 8938 / FEIE gates; PFIC & expatriation dollars not modelled Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Home beachhead cell | CGT event I1 (home side): yesSource ITAA 1997 s 104-160; ATO QC66059 How changing residency affects CGT Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | Citizenship-based tax: yesSource US domestic rule (citizenship-based taxation) — independent of any Vietnam treaty Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Tax-residence day test | 180 daysSource Thailand Revenue Code §41 para 3 (rd.go.th/english/37749.html) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
|---|---|
| Foreign / worldwide income | yesSource Thailand Revenue Code §41 para 2 (bringing foreign assessable income into Thailand) Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Top personal rate | 35%Source RD Guide to PIT Return 2024 (ภ.ง.ด.91) — official PDF rate table; matches thailand.go.th RD briefing (Revenue Code Amendment Act No. 44 B.E. 2560 schedule from tax year 2017). Note: rd.go.th/english/6045 still shows the pre-amendment 4m/35% top band and is not used for these cells. Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Long-stay instrument | 180 daysSource Royal Thai Embassy Budapest DTV page — stay up to 180 days per entry Checked Aug 2026 · Band high · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
| Local earn gate | yesSource Royal Thai Embassy Budapest DTV page — tourist-class DTV; no Thai work permit; no work for Thai entities/clients Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. |
Cross-check
| Land | Treaty | Relief | SSA | Open |
|---|---|---|---|---|
| Vietnam | yesSource [1992] ATS 44; Australian Treasury income tax treaties list — status In force Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource [1992] ATS 44 Art 15 / Art 23; nguon/AU_VN_DTA_1992_ATS44.md Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource DSS International social security agreements — Australia has agreements with 32 listed countries; Vietnam absent from current agreements and from agreements under negotiation on that page Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | AU → Vietnam |
| ThailandHere | yesSource [1989] ATS 36; Australian Treasury income tax treaties list — Thailand status In force Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource AU–TH DTA Art 24 — Methods of elimination; Australia and Thailand each allow a capped credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource DSS — Australia international social security agreements list (32 partners) does not include Thailand Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | AU → Thailand |
| Indonesia | yesSource DJP (pajak.go.id) tax treaty register — Australia P3B in force (effective 1993-07-01) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource AU–ID Art 15(2) — 120-day short-stay (not 183); four limbs including taxability in residence State — Article 24 ordinary credit method Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource DSS — Australia international social security agreements list does not include Indonesia Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | AU → Indonesia |
| Philippines | yesSource BIR Philippine Double Taxation Agreements list — Australia treaty in force (effective 1980-01-01) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource Australia–Philippines DTA Art. 24 — each State grants a credit for income tax paid in the other State, subject to the treaty and domestic-law limits Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource DSS — Australia international social security agreements list does not include the Philippines Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | AU → Philippines |
| Malaysia | yesSource Agreement signed Canberra 20 Aug 1980 [1981] ATS 15, amended by three protocols (1999, 2002, 2010); Australian Treasury income tax treaties list — Malaysia status In force Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource AU–MY DTA Art 14 Personal Services (ATO MLI synthesised text) — 183 days in the basis year or year of income — Article 23 ordinary credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource DSS — Australia international social security agreements list does not include Malaysia Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | AU → Malaysia |
| Portugal | 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 |
| Passport | Treaty | Relief | SSA | Open |
|---|---|---|---|---|
| AUHere | yesSource [1989] ATS 36; Australian Treasury income tax treaties list — Thailand status In force Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource AU–TH DTA Art 24 — Methods of elimination; Australia and Thailand each allow a capped credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource DSS — Australia international social security agreements list (32 partners) does not include Thailand Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | AU → Thailand |
| SG | yesSource MOF Singapore — revised Singapore–Thailand DTA enters into force on 15 February 2016 (signed 11 June 2015) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource Singapore–Thailand Agreement Art 22 — each State credits tax paid in the other, subject to domestic limits 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–Thailand 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 → Thailand |
| KR | yesSource Thai RD DTA list (rd.go.th/english/766.html) — Korea appears in Thailand's in-force DTA network; full English convention text published by the RD and Art 4 read from it Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource KR–TH Convention Art 5 Elimination of Double Taxation (Thai RD English HTML Art 1–5) — ordinary foreign-tax credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource NPS social security agreements overview — Thailand 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 → Thailand |
| CN | yesSource Thai RD DTA list (rd.go.th/english/766.html) — China appears in Thailand's in-force DTA network; full English convention text published by the RD and Art 4 read from it Checked Aug 2026 · Band med · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource CN–TH DTA Art 23 Elimination of Double Taxation (Thai RD English HTML Art 21–25) — ordinary credit 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 Thailand — 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 → Thailand |
| JP | yesSource Thai RD intro japan — signed 7 April 1990; instruments exchanged 1 August 1990; effect in Thailand from 1 Jan 1991 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource Japan–Thailand Convention Art 21 — each State credits tax paid in the other, subject to treaty limits 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 Thailand Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | JP → Thailand |
| UK | 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 |
| CA | yesSource Thai RD intro canada — Convention signed 11 April 1984; instruments exchanged 16 July 1985 Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource Canada–Thailand Convention Art 22 — Canada credits Thai tax; Thailand credits Canadian tax, subject to domestic limits Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource CRA countries-with-agreement table (Open Government CSV July 2024) does not list Thailand Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | CA → Thailand |
| US | yesSource US–Thailand Income Tax Convention, signed Bangkok 26 Nov 1996; Art 30 general effective date 1 Jan 1998 (irs.gov/pub/irs-trty/thailand.pdf) Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | ordinary tax creditSource US–TH DTA Art 16 Dependent Personal Services (IRS thailand.pdf); relief already flagged in us_th_ftc_relief_art25 — Article 25 ordinary credit Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | noSource SSA — U.S. International Social Security (Totalization) Agreements list does not include Thailand Checked Aug 2026 · Band low · Status fresh Method: figures past 2× SLA hide. See /method · /status · /changelog. | US → Thailand |