Do You Need a Visa for the UK?

Step 1: Your Nationality Decides ETA vs Visa

The UK sorts the world into two lists. If your passport is from a visa-free country — the United States, Canada, Australia, Japan, South Korea, the EU and EEA states, and dozens more — you do not need a visitor visa for stays up to 6 months. Since the ETA rollout you instead need an Electronic Travel Authorisation: a £20 online permission, valid 2 years with multiple 6-month visits, usually approved in minutes. Americans fall squarely in this group, as our UK ETA for US citizens guide explains in full.

If your passport is from a visa-national country — India, China, Pakistan, Nigeria, Bangladesh, Ghana, Egypt, Kenya, the Philippines, and many others listed in the UK's visa-national list — there is no ETA option. You must apply for a Standard Visitor visa before travel: an online form, a £135 fee, biometrics at a visa application centre, and a caseworker decision that typically takes around 3 weeks. Our UK visitor visa checklist walks through every document that decision needs.

A third, smaller group needs neither: British citizens, Irish citizens, and anyone who already holds UK immigration permission. Dual US-UK nationals travel on the British passport and skip both queues. If you are not sure which list your passport sits on, GOV.UK's visa-check tool gives a definitive answer in under a minute, and our free visa eligibility checker cross-checks it against your travel purpose.

Step 2: Your Purpose Can Override Everything

Nationality sets the default, but purpose can overrule it. An American software engineer flying in for a holiday needs only an ETA; the same engineer flying in to start a London job needs a sponsored work visa, and no ETA or visitor permission will cover it. The rule is simple: visits are for visiting. The moment your trip involves earning, enrolling, marrying, or remaining, you leave ETA and visitor territory and enter the visa system regardless of how powerful your passport is.

Short business activity is the grey area travellers ask about most. Attending meetings, negotiating contracts, going to conferences, and inspecting sites are permitted on both the ETA and the visitor visa. Doing productive work — filling a role, serving clients, running operations, freelancing for UK customers — is not, even if your foreign employer keeps paying you. Coming to the UK in order to work remotely, where the work is the point of the stay, fails the genuine-visitor test. Students face a similar line: a short course or exchange of up to 6 months fits inside visitor rules, while a degree or any course longer than 6 months needs a Student visa with a licensed sponsor.

The Full Decision Table

Read the table left to right: find your row, match your purpose, and take exactly what it says — never both an ETA and a visa for the same trip. Holding a valid visa already exempts you from the ETA, and holding an ETA never substitutes for a visa where one is required.

When a Visa Is Still Required

For Americans, the visa cases cluster into five groups. Work covers every form of employment and self-employment in the UK, almost always requiring employer sponsorship under routes such as the Skilled Worker visa. Study beyond 6 months needs a Student visa backed by a licensed education provider. Marriage and civil partnership need a Marriage Visitor visa even for a short ceremony trip — neither the ETA nor the Standard Visitor visa permits giving notice or marrying. Settlement and family reunion — joining a partner, parent, or child long-term — run through dedicated family visa routes with financial and relationship requirements. Finally, long stays of any kind beyond 6 months, including extended private medical treatment and year-long academic visits, need specialist permissions rather than visitor status.

Visa nationals face the same five groups on top of needing a visitor visa for ordinary tourism. The practical consequence is lead time: while an ETA is measured in minutes and days, visas are measured in weeks and months, with interviews, biometrics, bank statements, and employment evidence. Start at least 2 to 3 months before travel if any visa route might apply to you.

Criminality, Medical and Suitability Issues

Both ETA and visa forms ask about criminal, civil, and immigration offences, and the answers feed a suitability assessment that can refuse either permission. Serious or recent convictions, deception in a previous application, unpaid NHS debts in some routes, and prior overstays or deportations all weigh against the applicant. A criminal record does not automatically bar entry — minor, old, and spent matters are viewed very differently from recent custodial sentences — but it does mean the automated ETA route may not be available, pushing the traveller toward a visa application where the circumstances can be explained with evidence.

Medical requirements are narrow for visitors: no routine medical test is needed for short visits, though longer medical-treatment stays involve hospital documentation. The much more common medical-adjacent issue is travel insurance and proof that NHS care will not be needed beyond emergency treatment, since visitors are generally charged for secondary NHS care. Declare everything honestly on every form. Deception findings — hiding a refusal, a conviction, or a previous overstay — carry bans far longer than the underlying issue would have caused.

What Each Route Costs and How Long It Takes

All fees are non-refundable, including where an application is refused or a shorter permission is granted than requested. The cheapest mistake in UK travel is also the most common: paying a third-party site several times the official fee for an ETA that costs £20 on GOV.UK. The most expensive mistake is booking non-refundable travel before a visa decision arrives — GOV.UK explicitly advises against it.

Mistakes That Strand Travellers

First, assuming visa-free means permission-free: since February 2026 carriers deny boarding to ETA-required passengers without one, so the American habit of just showing up with a passport no longer works. Second, applying on the wrong passport — the ETA links to one document number, and travelling on a renewed or second passport voids it. Third, bringing children without their own ETAs; babies need them too. Fourth, using the ETA or visitor route for work or marriage and discovering the problem at the border interview, where officers ask exactly these questions. Fifth, visa nationals booking flights before the visa is granted. Each of these is avoidable with a ten-minute check before you pay for anything — which is precisely what the ETA checker and the document checklist in our UK visitor checklist are built for.

Frequently Asked Questions