UK
US
Start with citizenship or the correct immigration route
Establish whether each person is a US citizen, a permanent resident or someone who needs a new permission. These are different starting points. A returning citizen does not need a foreign-national work visa. A green card holder with a long absence may need immigration advice about the status of that residence rather than simply assuming that an unexpired card resolves re-entry.
For new arrivals, temporary employment categories have role-specific requirements. An E-2 treaty investor application is about a qualifying nationality and a substantial investment in a real operating enterprise, not simply owning a home or a passive portfolio. A tourist visa or visa-waiver visit does not create a general right to work or retire permanently. Confirm the route and the position of accompanying family before making non-refundable commitments.
A US citizen, including a dual citizen, should use a US passport to enter and leave the country. Check a non-citizen partner's and each child's status independently of your own right to return.
References for this section
US Department of State: temporary work visasVisa categories and petition requirements · Checked 2026-10-26
US Department of State: treaty investor visasTreaty investor requirements; substantial investment in an enterprise · Checked 2026-10-26
US Department of State: dual nationalityUse of a US passport · Checked 2026-10-26
Identify when US tax residence starts or changes
For a non-citizen, federal tax residence commonly turns on the green card test or substantial presence test, subject to exceptions and treaty provisions. Immigration status and tax residence are not interchangeable. Record days spent in the country before the move as well as after it, and identify whether a dual-status year or a treaty claim needs consideration.
Build an arrival-year schedule of employment, business income, pension withdrawals, dividends and planned disposals. Retain original acquisition costs and contribution records. Do not assume that relocating automatically resets investment cost to market value. Ask how transactions before and after the residence change will be treated. A plan agreed before selling a business or accessing a pension can prevent a difficult mismatch between two countries' definitions, payment dates and tax years.
Citizens generally remained subject to federal worldwide-income reporting while abroad. Returning is therefore not usually the start of federal tax exposure. Reconcile any outstanding overseas filings and identify what changes on becoming resident in a state.
References for this section
IRS: determining tax residenceGreen card and substantial presence tests · Checked 2026-10-26
IRS: US citizens and resident aliens abroadWorldwide income and filing · Checked 2026-10-26
HMRC: UK residence and foreign incomeStatutory Residence Test · Checked 2026-10-26
US Treasury: UK treaty technical explanationArticles 1, 17, 18 and 24 · Checked 2026-10-26
Choose a state with the whole household in mind
America is not a single tax or living-cost location. Compare the actual state and city where you will establish a home, work and educate children. Federal treaty treatment should not be assumed to produce an identical state result. State residence, the source of income and local rules need their own review.
California provides a useful illustration: its tax authority distinguishes resident, part-year resident and non-resident income, including worldwide income during a resident period. That is a California rule, not a model to apply uncritically to every state. Ask how a retained home, business, employment arrangement and travel pattern affect the state you are considering. A lower income-tax headline should be weighed alongside housing, insurance, property-related costs, transport and the practical needs of the family.
Returning to a former state can require a fresh review of your current ties and income. Do not assume that using a relative's address alone establishes or ends state residence.
References for this section
California FTB: part-year and non-residentsPart-year resident income; non-resident source income · Checked 2026-10-26
US Treasury: UK treaty technical explanationArticles 1, 17, 18 and 24 · Checked 2026-10-26
Keep pension and retirement decisions account-specific
List US workplace plans, traditional IRAs, Roth IRAs and foreign pensions as separate arrangements. Their withdrawal, contribution and reporting rules differ. For IRAs, the IRS distinguishes qualified Roth distributions from other payments and sets out required-distribution rules for applicable accounts. A move is not a reason by itself to roll every account into a new structure.
Foreign retirement benefits need more than their local label. The US treatment of contributions, growth and distributions can depend on domestic rules and an applicable treaty. Collect scheme documents and historical contribution records before making a withdrawal or transfer. Withholding taken by a provider may not equal the final liability. The objective is to know what the existing arrangement does, which reporting applies and what a proposed change would actually improve.
If you built up a foreign pension while abroad, bring its records into the return plan. A US account conversion or rollover should be evaluated separately from the foreign plan rather than treating both as one generic retirement pot.
References for this section
IRS: IRA distributionsTraditional IRAs; Roth IRAs; qualified distributions · Checked 2026-10-26
IRS: pension and annuity incomeDistributions and rollovers · Checked 2026-10-26
IRS: foreign pension distributionsTreaty treatment and distributions · Checked 2026-10-26
US Treasury: UK treaty technical explanationArticles 1, 17, 18 and 24 · Checked 2026-10-26
EXPERT INTERNATIONAL WEALTH PLANNING
Make your United States plans personal.
Speak with an International Wealth Planner about your pensions, investments and financial structure before moving to United States, or review the arrangements you already have abroad.
US$1.5m+ investable wealth or US$50k+ monthly income.
Tell us your plans. Check your fit. Request a consultation.Review foreign funds, ISAs and structures before arrival
The US classification of an investment can differ sharply from its treatment where it was purchased. Non-US pooled investments may fall within the passive foreign investment company rules. The PFIC analysis concerns the entity and applicable rules; it does not mean that every foreign asset is a PFIC. Reporting exceptions and elections have conditions and do not create a universal exemption.
Create an inventory showing the account owner, country, legal wrapper and individual holdings. Include foreign life policies, trusts and companies for specialist review. Foreign account reporting can apply independently of whether income produces a US tax bill. Preserve statements and transfer records instead of closing accounts first and trying to reconstruct the history later. A well-prepared inventory makes the conversation with a cross-border planner much more useful.
Retained overseas bank and brokerage accounts may continue to require FBAR or other reporting after your return. Selling a foreign fund can itself have tax consequences, so seek advice before using closure as a shortcut.
References for this section
IRS: Form 8621 instructionsPFIC definition; elections; reporting exceptions · Checked 2026-10-26
IRS: foreign account reportingWho must file; foreign financial accounts · Checked 2026-10-26
IRS: foreign trust reportingForeign trusts and reporting consequences · Checked 2026-10-26
Budget for a city and a household, not an American average
Build the budget around the place and lifestyle you would actually choose. Housing, car ownership, commuting, school arrangements and healthcare can change the result more than a broad national grocery estimate. A central city apartment with public transport has a different cost structure from a suburban house requiring two cars.
Separate ongoing spending from arrival cash. A rental deposit, vehicle purchase, furnishings and an overlap between homes should not disappear inside a monthly average. For healthcare, compare the premium with the deductible, network and potential out-of-pocket exposure. For housing, ask about utilities, parking and community charges as well as rent. Use the lifestyle tool to identify the large categories, then replace them with relevant local quotations. Keep a reserve for the period before payroll, bank access and medical cover are fully established.
Use USD for the household plan and identify any commitments still payable overseas. The return budget should reflect your current family and healthcare needs, rather than the costs you remember from an earlier period in America.
References for this section
HealthCare.gov: immigrants and coverageGroups eligible for Marketplace coverage · Checked 2026-10-26
CFPB: newcomer bank account checklistIdentification and comparing account services · Checked 2026-10-26
Make healthcare an early decision
A move to the US should include a specific medical-cover plan. Establish whether cover comes through an employer, an individual policy, Medicare or another eligible program. Marketplace eligibility depends on the relevant requirements, including qualifying immigration status. The availability of a plan does not establish that a particular subsidy or benefit applies.
Medicare generally serves people aged 65 or older who meet citizenship or residence requirements, with certain earlier-eligibility categories. Age alone is not the entire test. Check enrolment timing and the treatment of an overseas period with the appropriate program or advisor. Ask about prescriptions, existing specialists, dependents and the first day of effective coverage. Keep enough accessible cash for the policy's share of costs, and distinguish routine domestic medical cover from travel insurance or emergency evacuation cover.
A returning citizen should check existing Medicare or employer-plan arrangements and any relevant enrolment window before arriving. Do not assume that citizenship automatically creates immediate, free cover for every service.
References for this section
HealthCare.gov: immigrants and coverageGroups eligible for Marketplace coverage · Checked 2026-10-26
Medicare: getting startedAge, citizenship or residence; enrolment · Checked 2026-10-26
Plan housing, transport and local resilience together
Choose a first home with work, schools, healthcare and daily transport in mind. If you are unfamiliar with the area, temporary accommodations or an initial rental can provide time to understand neighborhoods before buying. Ask a lender or letting agent how it treats foreign income, overseas assets and a limited recent US credit record.
Compare the whole housing commitment, including required insurance and costs outside the advertised payment. Before buying, ask local professionals about property-specific risks, restrictions and the relevant insurance market. Driving-licence and identification requirements vary by state, so check the destination authority rather than applying a national deadline. For areas exposed to severe weather, review local emergency alerts, evacuation guidance and home preparedness. These practical choices can affect comfort and reliability as much as a financial comparison.
Reconfirm the validity of an old state licence and update address records. Returning to a familiar city is still a good time to reassess transport, insurance and emergency arrangements.
References for this section
USAGov: non-citizen drivingState requirements for foreign licences · Checked 2026-10-26
National Weather Service: safetyWeather hazards and preparedness · Checked 2026-10-26
Organize identification, banking and communication
Ask a bank what identification, address and tax-number evidence it will accept before moving a substantial balance. The Consumer Financial Protection Bureau's newcomer checklist explains the importance of comparing account services and documents. Keep source-of-funds evidence for incoming transfers. A US tax identification number serves a tax purpose; it does not create immigration permission or work rights.
Recover an existing Social Security record or check the process for a first number when eligible. Arrange a mobile service that supports banking authentication and keep access to any overseas number until every important login has been tested. Collect medical and school records, relevant civil certificates and emergency contacts for the family. Non-citizens should check applicable address-reporting requirements when establishing or changing a home. Give each task an owner and a completion date rather than relying on one long moving-day list.
Update retained US accounts after returning and check authentication methods before cancelling overseas services. The aim is continuous access to income, tax records and household payments throughout the transition.
References for this section
CFPB: newcomer bank account checklistIdentification and comparing account services · Checked 2026-10-26
Social Security Administration: first numberRequest a Social Security number · Checked 2026-10-26
USCIS: change of addressReporting a change of address · Checked 2026-10-26
Coordinate the financial review before major transactions
The most useful preparation is a concise file: citizenships, immigration status, intended state, travel dates, assets, income, liabilities and the transactions you are considering. Add a list of unresolved questions rather than trying to select a complex structure from a headline tax rate. A business, foreign trust or life policy may need legal and tax specialists as well as investment advice.
Review wills, powers of attorney, beneficiary nominations and insurance with advisors who understand the countries involved. Federal, state and foreign succession questions should not be collapsed into the income-tax treaty. Pack Your Portfolio publishes educational material and introduces readers to suitably qualified planners; it is not a regulated advisory business. Our asset map can organize the discussion and highlight areas for review. A planner can then assess suitability, costs and implementation with your actual facts.
For a return, focus on overseas structures accumulated while abroad, state exposure and the income needed to establish the household. A foreign account need not be changed simply because it is foreign.
References for this section
US Treasury: UK treaty technical explanationArticles 1, 17, 18 and 24 · Checked 2026-10-26
IRS: foreign trust reportingForeign trusts and reporting consequences · Checked 2026-10-26
THE QUESTIONS WORTH ASKING
Planning your move to United States.
Can I move to America just because I can afford to retire?
Financial resources do not create a general US retirement visa. Establish citizenship, retained status or a qualifying immigration route. A visitor permission should not be treated as permission to settle permanently. A returning citizen has a different starting point from a non-citizen spouse.
Will my British ISA stay tax-free in the US?
Its UK exemption does not determine US treatment. The account and its holdings need review, including potential PFIC exposure from non-US pooled investments. Do not assume the wrapper prevents reporting or tax. The same principle applies to a retained ISA after returning to America.
Does the UK-US tax treaty settle my state tax?
Do not assume that a federal treaty result applies identically in your state. State residence and income rules need separate checking against the actual location, income and relevant provisions. Review old state ties as well as the place you will return to.
Is Medicare automatic when I reach retirement age?
Eligibility includes citizenship or residence requirements as well as age, with defined exceptions. Some people are enrolled automatically and others must apply. Check the relevant conditions and timing before relying on cover. An overseas period is a reason to check enrolment rather than assume.
Must I close all my overseas accounts?
No blanket rule in this guide requires closure. Check provider restrictions, US tax classification, reporting and the reason for retaining each account. A sale or surrender can itself be a taxable event. Include FBAR and other applicable reporting in the review.
Put your plans into perspective.
Build your own assumptions and prepare questions for a personal conversation.
Build your United States relocation checklist ↗Explore your lifestyle budget ↗Map your existing assets ↗Compare United States with other destinations ↗EXPERT INTERNATIONAL WEALTH PLANNING
Make your United States plans personal.
Speak with an International Wealth Planner about your pensions, investments and financial structure before moving to United States, or review the arrangements you already have abroad.
US$1.5m+ investable wealth or US$50k+ monthly income.
Tell us your plans. Check your fit. Request a consultation.Research sources, dates and editorial scope
Published by Pack Your Portfolio, an unregulated editorial publisher and introducer. General education, not personal financial, legal, tax or immigration advice. The guide was reviewed on October 26, 2026; individual sources have their own check dates. Rules and availability can change. Permission to live somewhere, tax residence and citizenship are separate questions.
US Department of State: temporary work visasVisa categories and petition requirements · Checked 2026-10-26
US Department of State: treaty investor visasTreaty investor requirements; substantial investment in an enterprise · Checked 2026-10-26
US Department of State: dual nationalityUse of a US passport · Checked 2026-10-26
IRS: determining tax residenceGreen card and substantial presence tests · Checked 2026-10-26
IRS: US citizens and resident aliens abroadWorldwide income and filing · Checked 2026-10-26
HMRC: UK residence and foreign incomeStatutory Residence Test · Checked 2026-10-26
US Treasury: UK treaty technical explanationArticles 1, 17, 18 and 24 · Checked 2026-10-26
California FTB: part-year and non-residentsPart-year resident income; non-resident source income · Checked 2026-10-26
IRS: IRA distributionsTraditional IRAs; Roth IRAs; qualified distributions · Checked 2026-10-26
IRS: pension and annuity incomeDistributions and rollovers · Checked 2026-10-26
IRS: foreign pension distributionsTreaty treatment and distributions · Checked 2026-10-26
IRS: Form 8621 instructionsPFIC definition; elections; reporting exceptions · Checked 2026-10-26
IRS: foreign account reportingWho must file; foreign financial accounts · Checked 2026-10-26
IRS: foreign trust reportingForeign trusts and reporting consequences · Checked 2026-10-26
HealthCare.gov: immigrants and coverageGroups eligible for Marketplace coverage · Checked 2026-10-26
Medicare: getting startedAge, citizenship or residence; enrolment · Checked 2026-10-26
USAGov: non-citizen drivingState requirements for foreign licences · Checked 2026-10-26
National Weather Service: safetyWeather hazards and preparedness · Checked 2026-10-26
CFPB: newcomer bank account checklistIdentification and comparing account services · Checked 2026-10-26
Social Security Administration: first numberRequest a Social Security number · Checked 2026-10-26
USCIS: change of addressReporting a change of address · Checked 2026-10-26
Photography: Nate Foong, Unsplash License.
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