Most passport rankings measure one thing: where you can travel visa-free. The Passport Strength Index adds the dimension that actually shapes a life — where you can legally live and work — and lets you weigh the two yourself.
1. What we measure
A citizenship is a bundle of rights. We score two of them separately, because they answer different questions and often disagree:
- Mobility — where you can go (visa-free / visa-on-arrival travel).
- Work access — where you can earn a living without an employer-sponsored work visa. This is the axis almost nobody else measures, and it is the core of this index.
We deliberately keep them apart. A single blended number hides the interesting structure (Singapore tops travel but is near the bottom on work access; Ireland is unmatched on work access but ordinary on raw travel). You choose the blend with a slider.
2. The work-access axis
For every ordered pair of countries — (your passport, a destination) — we assign one access level describing your legal right to work there. Levels come from a curated inventory of international free-movement agreements (below), each verified against a primary or authoritative source. Every level carries a weight; partial rights are discounted:
| Level | Meaning | Weight |
|---|---|---|
Home | Your own country — always | 1.00 |
Automatic | Work freely, at most simple registration (EU/EEA, Trans-Tasman, CTA, GCC…) | 1.00 |
Conditional Residence | Right to work granted via a residence pathway, not instant (Mercosur) | 0.50 |
Skilled Only | Only certified/skilled categories qualify (CARICOM CSME) | 0.40 |
Partial Uneven | Legal right exists but implementation is uneven (some African blocs) | 0.30 |
None | Ordinary employer-sponsored work visa required | 0.00 |
These weights are explicit judgement calls. Our robustness checks show the top of the ranking is insensitive to them — it is driven by automatic-access blocs and home-market size — while the discounts only reshuffle the middle (Mercosur, CARICOM and African-bloc passports).
The agreements we count (15 blocs)
Grouped by access level. "Members" is the number of countries in the bloc whose citizens gain rights in one another.
| Level | Agreement | Members | Notes & source |
|---|---|---|---|
| Automatic | EU Single Market + EEA + Switzerland (free movement of workers) | 31 | EU27 + EEA-EFTA (Iceland, Liechtenstein, Norway) + Switzerland (via the bilateral Agreement on Free Movement of Persons). All transitional restrictions on newer member states have lapsed. Liechtenstein operates a residence quota/lottery under a special EEA protocol, so the right to work exists but settlement is capped. source |
| Automatic | Common Travel Area (UK–Ireland) | 2 | British and Irish citizens can live and work in each other's country with no permit. Reciprocal CTA rights were explicitly preserved after Brexit. source |
| Automatic | Trans-Tasman Travel Arrangement (Australia–New Zealand) | 2 | NZ citizens enter and work in Australia indefinitely on the Special Category Visa (subclass 444); Australians have reciprocal rights in NZ. source |
| Automatic | Gulf Cooperation Council common market | 6 | Common market launched 2008; from 2015 GCC citizens have full equality to work in public and private sectors of other member states, with social-insurance and ownership rights. (This applies to GCC NATIONALS, not the large expatriate workforce.) source |
| Automatic | CARICOM Full Free Movement (2025 enhanced-cooperation group) | 4 | From 1 October 2025, Barbados, Belize, Dominica and St Vincent & the Grenadines grant each other's nationals the right to enter, reside, work and remain indefinitely with no work/residency permit — beyond the older skilled-only CSME regime. More states are expected to join. source |
| Automatic | OECS Eastern Caribbean Economic Union — free movement of persons | 6 | The OECS Economic Union (Revised Treaty of Basseterre, Art. 12) lets citizens of protocol members work in any other member WITHOUT a work permit and get an indefinite-stay stamp on arrival — broader than CSME's skilled-categories-only regime. Montserrat is a member but a British territory (excluded from a passport ranking). The broader 'contingent rights' package (equal access to social services) is not yet fully implemented everywhere (St Vincent & the Grenadines lags), but the core right to work without a permit is operational, hence AUTOMATIC. source |
| Automatic | Eurasian Economic Union common labour market | 5 | EAEU Treaty (in force 1 Jan 2015) Article 97: workers of member states need NO employment permit, and employers need no permit to hire them. Light migration registration is still required (e.g. in Russia) but that is not a sponsored permit, so AUTOMATIC. The Russia–Belarus Union State gives RU↔BY an even deeper basis but is redundant here. source |
| Automatic | India–Nepal Treaty of Peace and Friendship (1950) | 2 | Treaty Article 7 grants reciprocal national treatment for residence, trade, movement and 'privileges of a similar nature'; Nepali citizens work freely in India's private sector with no work visa, and reciprocally. Caveat: most Indian government/civil-service and defence posts require Indian citizenship (Nepalis barred from IAS/IPS/IFS), and Nepal applies a work-permit/property regime to Indians, so the right is applied more fully to Nepalis in India than the reverse. source |
| Automatic | Compact of Free Association — labor access to the United States (directional) | 4 | Citizens of the Marshall Islands, Micronesia (FSM) and Palau may live and work in the US without a visa under COFA (renewed/extended in 2024); US citizens have reciprocal access to those states. This is the standout outlier: three tiny nations get work access to the entire US economy. source |
| Automatic | India–Bhutan friendship arrangement (directional) | 2 | Bhutanese nationals may live, work and study in India largely on national treatment. Indians have access to Bhutan but face more restrictions (sectors, settlement), hence the asymmetric classification. source |
| Conditional (residence) | Mercosur Residence Agreement | 9 | Grants nationals temporary residence (up to 2 years, convertible to permanent) WITH the right to work in another participating state. Full members: Argentina, Brazil, Paraguay, Uruguay, Bolivia (acceded July 2024). Participating associates: Chile, Colombia, Ecuador, Peru. Venezuela suspended since 2017 (excluded). Classified CONDITIONAL_RESIDENCE because work follows a residence application rather than being automatic on entry. source |
| Skilled only | CARICOM Single Market & Economy — free movement of skills | 12 | CSME free movement applies only to CARICOM nationals in approved skilled categories (university graduates, media workers, artists, musicians, sportspersons, nurses, teachers, and an expanding list) who obtain a CARICOM Skills Certificate. The Bahamas is not in the single market; Haiti participates partially. For the four states in `caricom_full_free_movement`, the resolution rule upgrades intra-group pairs to AUTOMATIC. source |
| Partial / uneven | ECOWAS Free Movement, Residence & Establishment (West Africa) | 15 | The protocol's right of entry is well implemented; the right of residence and establishment (i.e. actually working) is unevenly applied across members, hence PARTIAL_UNEVEN. Burkina Faso, Mali and Niger formally withdrew effective 29 Jan 2025 but ECOWAS directed that their citizens keep free-movement/residence/establishment rights 'until further notice', so they remain included transitionally. source |
| Partial / uneven | East African Community Common Market | 8 | The 2010 Common Market Protocol provides for free movement of workers, but a permit/pass is still required even in the most open states (Kenya, Rwanda, Uganda waive the FEES — Kenya's free 'Class R' permit from May 2025) while Tanzania and Burundi still charge and restrict. No member is AUTOMATIC, hence PARTIAL_UNEVEN. DRC joined 2022, Somalia 2024. source |
| Partial / uneven | CEMAC free movement (Central Africa) | 6 | Free movement was formally agreed (visa-free travel from 2017), but the right of establishment/work has been resisted in practice by some members (notably Equatorial Guinea and Gabon). PARTIAL_UNEVEN pending confirmation. source |
What we deliberately exclude (10)
Not every "free movement" headline is a real, in-force right to work. We exclude:
| Arrangement | Why excluded |
|---|---|
| African Union Free Movement of Persons Protocol | NOT in force. Per the official AU status list: 32 signatures but only 4 ratifications/deposits (Mali, Niger, Rwanda, São Tomé & Príncipe); 15 are required (Art. 38), with no new ratifications since 2019. Aspirational — coefficient 0. This (not AfCFTA) is the actual continent-wide free-movement instrument. |
| AfCFTA (African Continental Free Trade Area) | Covers trade in goods/services, not free movement of workers (that is the separate AU FMP above, not in force). |
| USMCA / TN visa (US-Canada-Mexico) | Profession-specific, employer-tied, time-limited category — not a general right to work. |
| Working-holiday visa schemes | Age-capped, temporary, often single-entry — not a durable right to work. |
| ASEAN | Only Mutual Recognition Arrangements for ~8 professions, still subject to local licensing. No general free movement of labour. |
| SADC Free Movement Protocol | Not widely ratified / not in force as a labour-mobility regime. |
| Nordic Common Labour Market (1954) | Genuine and in force, but all five members (DNK, FIN, ISL, NOR, SWE) are already covered by EU/EEA — folded into eu_eea_ch to avoid double counting. |
| Andean Community (CAN) labour migration instrument | Real (Decision 878, in force Aug 2021, grants work via residence), but its members (BOL, COL, ECU, PER) already receive CONDITIONAL_RESIDENCE via Mercosur; not added separately to avoid double counting. |
| Russia–Belarus Union State | Grants RU<->BY citizens a reciprocal right to work, but both are already AUTOMATIC via the EAEU bloc — folded in to avoid double counting. |
| EFTA Convention (Annex K) | Separate legal basis for free movement among CH/NO/IS/LI (notably Switzerland, which is not in the EEA), but all four are already in eu_eea_ch as AUTOMATIC — folded in to avoid double counting. |
3. The four economic views
Once we know which countries you can work in, we value that access. Two independent choices — what to measure and in which prices — give four parallel views. You pick one; nothing is hidden.
Total economy
The share of the world economy you can legally work in, including your home country (a citizenship is, first, the unconditional right to your own labour market, and its value scales with the size of that market):
The United States leads this view — a US passport is the right to work in roughly a quarter of the world economy.
Economy per person (GDP per capita)
The income level of your accessible market: total accessible GDP divided by its total population. This corrects for competition — a huge economy shared by a billion people is a weaker individual opportunity than a small wealthy one:
Small rich economies (Monaco, Singapore) top this; China falls to the 70s.
Nominal vs. PPP prices
Both views come in two price bases. Nominal uses market exchange-rate US dollars. PPP (purchasing-power parity) adjusts for the fact that a dollar buys more in cheaper countries — which is why, by real economic size, China's economy is the world's largest and tops work reach under PPP.
4. The travel axis
To stay comparable with familiar rankings, mobility is the conventional count: the number of destinations reachable visa-free, visa-on-arrival, or via electronic travel authorisation (eTA). E-visas and visa-required destinations do not count.
5. The combined index & the blend
Each axis is normalised to a 0–100 scale (relative to the strongest passport). The headline "Power" score blends them:
The blend slider sets α. At the neutral default (α = 0.5) the US ranks #1; the result is robust for any work weight ≥ 0.3 and only changes if you weight travel well above work — i.e. if you turn the index back into a conventional travel ranking.
6. Data sources
Economics — World Bank & IMF
GDP (nominal and PPP), population and labour force come from the World Bank Open Data
API — indicators NY.GDP.MKTP.CD, NY.GDP.MKTP.PP.CD,
SP.POP.TOTL, SL.TLF.TOTL.IN, 2024 vintage. Licensed
CC BY 4.0 (commercial use permitted with attribution). Taiwan, which the World
Bank omits, is added from the IMF World Economic Outlook.
Travel — Wikipedia (CC BY-SA)
The visa matrix is compiled from Wikipedia's "Visa requirements for X citizens" articles (CC BY-SA 4.0), which are themselves sourced from government and IATA-Timatic visa policy. Passport and country names are mapped to ISO codes via Wikidata. The result cross-checks at 95.8% agreement with a commercial reference dataset. We do not use any proprietary (Passport Index / Henley) data.
Work-access agreements — our own inventory
The free-movement bloc dataset above is compiled and maintained in-house from primary treaty and government sources (EU/EFTA, gov.uk, EAEU treaty text, OECS/CARICOM, ECOWAS, the AU status list, USCIS, and others), each entry cited and confidence-flagged. This is the original core of the index and carries no third-party rights.
Country universe
196 sovereign-state passports. Non-sovereign territories (Hong Kong, Puerto Rico, the Isle of Man, etc.) are excluded from a citizenship ranking. A small number of countries with stale World Bank GDP (Cuba, Eritrea, South Sudan, Yemen) are flagged in the data.
7. Limitations — read these
- De jure, not de facto. We measure the legal right to work, not practical ease — language, labour demand, or the cost of relocating.
- Qualification recognition is not modelled. A licensed professional cannot always practise abroad even with the right to work.
- Tax and social security are out of scope.
- The answer depends on the view. Nominal → the US; PPP → China; per-person → Monaco/Singapore. There is no single "most powerful passport" — which is exactly why the views and the blend are yours to set, not ours to assert.
- Skilled-only blocs apply to a subset of people, not every passport holder; the discount weight is an approximation.
- We rank the passport, not the person.