Visas and residency, without the confusion.

Americans moving to Europe generally choose among four legal families: passive-income residence, such as Portugal’s D7 or Spain’s non-lucrative permit; work and telework routes, including Spain’s international teleworker authorisation and Portugal’s remote-work visa; entrepreneurial and highly qualified categories; and family-based permits. Investor routes have narrowed sharply since Spain closed its investor visa in April 2025.

The four families almost every route belongs to

Official sites list dozens of visa letters and article numbers, which makes the field look more varied than it is. Underneath the labels, a residence route asks one of four questions. Does money arrive without working in the host country? Does the applicant work, and for whom, from where? Does the applicant intend to build something? Or is there a family tie already?

The family a route belongs to decides what the file must prove. Portugal’s consular documentation for people living on their own income asks for evidence of income from property, intellectual property or financial holdings, and separately that those funds are available in Portugal. A telework route tests a relationship instead: Spain requires a payer outside Spain trading for at least a year, a relationship at least three months old, and caps work for a Spanish client at 20 per cent of activity.

The investment family has changed most. Articles 63 to 67 of Ley 14/2013, which carried Spain’s investor visa and permit, were left without content from 3 April 2025 by the twenty-first final provision of Ley Orgánica 1/2025. Transitional rules preserve applications filed earlier and let live permits run to expiry, with renewals decided under the rules in force at the original grant.

• Passive income — the file tests where money comes from and whether it keeps arriving, not what the holder does all day.
• Work and telework — the file tests the services relationship and whether the payer sits abroad.
• Entrepreneurial — the file tests a business plan, often through a technical body whose report is compulsory.
• Family — the file tests the sponsor as much as the applicant: how long the permit has been held, what the household earns.

How the main routes compare across three countries

Income conditions here are almost never fixed sums. They are multiples of a published index reset on its own schedule. Spain writes against the IPREM; Portugal writes against the national minimum monthly wage, weighted per capita on the modified OECD equivalence scale, and against the IAS or the average gross salary for its highly qualified route. The multiplier is durable; a figure printed last year is not.

Japan appears as a deliberate contrast. There is no Japanese status of residence for retirement or for living on investments. Every route is activity-based — employment, management, highly skilled professional, study — or status-based.

Residence and tax are one question wearing two hats

A permit is an immigration document, but the facts it records — where someone lives, how long, with whom — are the facts a tax authority uses. Spain treats an individual as habitually resident on more than 183 days in the calendar year, or where the core of their economic interests sits, and presumes residence where a spouse not legally separated and dependent minor children live there. Nobody applies for that presumption; it attaches to the household.

Some routes arrive with the tax consequence attached. Spain’s special regime for displaced workers lets a qualifying arrival elect non-resident tax rules for the year of the move and the five following tax periods, and the statute names the international telework visa created by Ley 14/2013 among the qualifying circumstances. Portugal replaced its non-habitual resident regime with the incentive at article 58-A of the tax benefits statute, taxing listed professions at 20 per cent.

A third layer never switches off. A US passport carries a US filing obligation on worldwide income wherever the holder lives, so becoming tax resident elsewhere adds a return rather than replacing one. A route chosen on immigration grounds alone can produce a tax outcome nobody modelled; one chosen on tax grounds alone can fail on conditions unrelated to money.

A permit, a settled status and a passport are three different things

Time on a temporary permit does not automatically deliver the next tier. Within the EU the floor is the long-term residents directive: five years of legal, continuous residence immediately before the application, resources sufficient without recourse to social assistance, and sickness insurance. The permit lasts at least five years and renews automatically, but the status lapses after twelve consecutive months away from EU territory, and after six years away from the granting state.

Citizenship sits well beyond that. Spain’s Civil Code sets ten years of legal, continuous residence immediately before the application, dropping to two for nationals of Ibero-American countries, Andorra, the Philippines, Equatorial Guinea and Portugal and for Sephardim, and to one for the spouse of a Spanish national married a year and not separated. A US citizen with no such tie faces ten.

Portugal reset its own clock in 2026. Lei Orgânica n.º 1/2026, in force from 19 May 2026, sets seven years of legal residence for nationals of Portuguese-speaking countries and EU member states, ten years for everyone else, and adds knowledge of Portuguese language, culture and history shown by test or certificate. Japan differs again: the Nationality Act sets five years of continuous domicile and requires that the applicant hold no foreign nationality, or renounce it on naturalisation.

Renewal cycles and the presence conditions hidden inside them

Renewals are where conditions get re-tested. Spain’s non-lucrative authorisation runs one year, then renews for two-year periods, with the application due in the two months before expiry and a three-month window afterwards in which a late filing still keeps the old permit alive. The renewal re-examines means, health cover, schooling, tax and social security compliance, and an integration report.

Presence is where careless travel does the damage. Spain’s long-term EU residence requires five years in which absences do not exceed six consecutive months and total no more than ten — eighteen where the absence is for work. Someone spending five months a year in the United States can pass every annual renewal and still fail the cumulative test at year five. Some routes accrue nothing: Japan’s digital nomad status expires at six months and issues no residence card.

• The filing window — Spain opens it two months before expiry, with a limited grace period afterwards.
• The single-absence cap and the cumulative cap, which are different numbers tested at different moments.
• The date a permit was granted, since Spanish investor renewals follow the rules in force then.
• A tax registration deadline, which in Portugal falls on 15 January of the year after residence begins.

When a spouse or a child is not a US citizen

A mixed-nationality household is not one file with extra names on it. Where the spouse holds EU citizenship, the third-country routes above are largely beside the point, because free movement governs instead. Where the spouse is also a third-country national, the household needs either simultaneous applications from abroad or a reunification file from inside.

Portugal tightened that timing in October 2025. Under Lei n.º 61/2025, the holder of a residence permit valid for at least two years has the right to family reunification, reduced to fifteen months where the spouse has cohabited for at least eighteen months beforehand, with exceptions for minors and dependants. Spain tests the sponsor’s finances instead: 150 per cent of IPREM for sponsor plus one reunified member, 50 per cent for each additional member.

Nationality mismatches reach forward as well. A child born in Portugal to a parent with five years of legal residence has a nationality route of their own under the 2026 law, provided the child is in compulsory education — so one household can hold three legal footings at once. Spain’s presumption of tax residence, built on where a spouse and minor children live, pulls a US citizen in on facts about everyone else.

1. Boletín Oficial del Estado, Ley 14/2013, de 27 de septiembre, de apoyo a los emprendedores y su internacionalización — https://www.boe.es/buscar/act.php?id=BOE-A-2013-10074 — checked 28 August 2026
2. Boletín Oficial del Estado, Real Decreto 1155/2024, Reglamento de la Ley Orgánica 4/2000 — https://www.boe.es/buscar/act.php?id=BOE-A-2024-24099 — checked 28 August 2026
3. Boletín Oficial del Estado, Ley 35/2006 del Impuesto sobre la Renta de las Personas Físicas — https://www.boe.es/buscar/act.php?id=BOE-A-2006-20764 — checked 28 August 2026
4. Boletín Oficial del Estado, Código Civil, artículo 22 — https://www.boe.es/buscar/act.php?id=BOE-A-1889-4763 — checked 28 August 2026
5. Diário da República, Lei n.º 61/2025, de 22 de outubro — https://files.diariodarepublica.pt/1s/2025/10/20400/0000900017.pdf — checked 28 August 2026
6. Diário da República, Lei Orgânica n.º 1/2026, de 18 de maio, altera a Lei da Nacionalidade — https://files.diariodarepublica.pt/1s/2026/05/09500/0000200020.pdf — checked 28 August 2026
7. Diário da República, Portaria n.º 1563/2007, de 11 de dezembro, meios de subsistência — https://files.diariodarepublica.pt/1s/2007/12/23800/0886608868.pdf — checked 28 August 2026
8. Ministério dos Negócios Estrangeiros, Portal Diplomático, documentação instrutória para residência — https://vistos.mne.gov.pt/pt/vistos-nacionais/documentacao-instrutoria/residencia — checked 28 August 2026
9. Immigration Services Agency of Japan, Designated Activities for Digital Nomad — https://www.moj.go.jp/isa/applications/status/designatedactivities53_00001.html — checked 28 August 2026
10. Ministry of Justice, Japan, Nationality Q and A — https://www.moj.go.jp/EN/MINJI/minji78.html — checked 28 August 2026
11. EUR-Lex, Council Directive 2003/109/EC on the status of third-country nationals who are long-term residents — https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32003L0109 — checked 28 August 2026