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Find out if you need to pay the immigration health surcharge as part of your visa or immigration application.
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The different types of British nationality explained - British citizen, British overseas territories citizen, British overseas citizen, British subject, British national (overseas), British protected person
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How you can show you know English when you apply for citizenship and to settle in the UK, and when you do not have to
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Bringing pets into Great Britain: pet passports, Great Britain pet health certificates, microchipping, rabies vaccinations, travelling with assistance dogs.
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Apply for a visa to visit the UK if you want to marry or register a civil partnership within 6 months - eligibility, documents, how to apply, how much it costs
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Apply for a High Potential Individual (HPI) visa if you've been awarded a qualification by an eligible university in the last 5 years - eligibility, fees, documents, switch, bring your partner and children
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Apply for British citizenship if you have a British parent - who's eligible, fees and how to apply
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Cancel (withdraw) a UK visa, immigration or citizenship application and get a refund on your application fees, immigration health surcharge and priority service fee.
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Apply for British citizenship if you're married to, or in a civil partnership with, a British citizen - form AN, who's eligible, fees and how to apply.
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Search for someone to help you with advice and applications to stay in the UK - free and paid-for services, adviser levels 1, 2, 3 and complaints.
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Having right of abode means you're allowed to live or work in the UK without any immigration restrictions - apply for a certificate of entitlement to prove you have it.
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What you can do with a UK residence card, also known as an EEA biometric residence card (BRC), report it lost or stolen, who can order a replacement.
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What to do if you're visiting the UK for a holiday or to see family or friends: check if you’re eligible, if you need a visa, and what to do before you visit.
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How to apply for a document to travel outside the UK if you're not British and you cannot use or get your own national passport.
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Apply for citizenship by naturalisation if you live in the Channel Islands, Isle of Man, a British Overseas Territory or if you live elsewhere and want to apply by post.
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Dual citizenship (also known as dual nationality) is allowed in the UK. Read the rules and how to apply.
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Get your documents returned if you've made a UK visa, immigration or citizenship application but need them back urgently
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British passport eligibility - types of British nationality, eligibility by marriage or civil partnership, who to contact if you're not sure
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Apply to study English language in the UK with a Short-term study visa. Check fees, eligibility, documents you need and how to apply.
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Apply for a UK Ancestry visa if you're a Commonwealth citizen and can prove that one of your grandparents was born in the UK - eligibility, fees, documents, how to apply, how long it takes and how to settle