Introduction: Expat Tax Miami Planning Beyond the Zero-Rate Headline
Every expat tax Miami conversation starts with the same sentence: Florida has no state income tax. That sentence is true. Nevertheless, it answers perhaps a fifth of the question a wealthy British household actually faces. Federal tax still reaches worldwide income at 37%, the net investment income tax adds 3.8%, and the United Kingdom carries on taxing UK property, UK pensions and UK land disposals regardless of your Brickell postcode.
At TaxYork, we prepare returns for British founders, fund principals, shipping executives and property investors who relocate to Miami. In our experience, the zero-rate headline creates a dangerous calm. Clients arrive assuming the move solved their tax position. Instead, it moved the problem. Consequently, the real expat tax Miami question is never what Florida charges. Rather, it is what Washington and HMRC continue to charge once Tallahassee steps aside.
Expat Tax Miami Basics: Two Governments, One Household
Florida removes one of the three layers a British family would face in Chicago or Los Angeles. However, two layers survive intact. Federal income tax reaches your worldwide income from the day you become a US resident. Meanwhile, the United Kingdom keeps taxing UK-source income even after you leave. Therefore, sound expat tax Miami compliance means running the federal return and the UK Self Assessment return as one exercise, not two.
Who This Guide Is Written For
This guide addresses high-net-worth British nationals, dual national US UK families and accidental Americans settling in South Florida. Specifically, it suits company owners, investment bankers, private-equity partners and landlords who arrive with UK property, pensions and portfolios still in place. If your household income runs into seven figures, every expat tax Miami rule below carries a six-figure consequence. For the national picture, read our complete guide to UK expat tax in the USA.
What Makes South Florida Different
Miami differs from other US landing points in three measurable ways. First, Florida genuinely cannot levy a personal income tax, so there is no state credit question at all. Second, the state raises its revenue through transaction taxes on property instead. Third, the city attracts households who move wealth, not merely salary. Accordingly, expat tax Miami planning turns on capital, currency and property rather than payroll.
What Florida Actually Charges and What It Cannot
Florida looks generous from London, and largely it is. Nevertheless, the state collects substantial sums from wealthy arrivals through channels that never appear in a relocation brochure. Any honest expat tax Miami assessment therefore starts with what the state does levy.
The Constitutional Ban on a Personal Income Tax
Article VII, Section 5 of the Florida Constitution forbids a personal income tax without a constitutional amendment. Consequently, this is not a policy that a legislature can reverse next spring. Moreover, no Florida city or county may impose one either, so Miami-Dade adds nothing. For anyone weighing expat tax Miami exposure against New York or California, that permanence carries genuine planning value.
Sales Tax, the Miami-Dade Surtax and the $5,000 Ceiling
Florida charges 6% sales tax and Miami-Dade adds a 1% discretionary surtax, producing a 7% headline rate. Importantly, that county surtax applies only to the first $5,000 of a single item of tangible personal property. Therefore a $400,000 yacht attracts the full 6% state charge but just $50 of county surtax. In practice, this ceiling matters for the exact purchases wealthy arrivals make first.
Corporate Income Tax at 5.5% for Company Owners
Florida does tax corporations, at 5.5%. Consequently, a British founder who incorporates a C corporation in Miami pays federal tax at 21% plus Florida tax at 5.5%. However, partnerships, S corporations and most LLCs escape the charge. Accordingly, entity selection deserves attention before the first invoice, and our cross-border planning service addresses precisely this decision.
Property in Miami: Where the Missing Income Tax Reappears
Florida recovers through property what it declines to take through income. Furthermore, the recovery lands hardest on the price points that British buyers occupy.
Documentary Stamp Tax, Note Tax and Intangible Tax
Miami-Dade charges documentary stamp tax on deeds at $0.60 per $100 of consideration, slightly below the $0.70 charged in every other Florida county. Additionally, a county surtax of $0.45 per $100 applies to transfers that are not single-family residential. Mortgages attract a further $0.35 per $100 on the note plus $0.20 per $100 of intangible tax. Consequently, a $6m Coral Gables purchase with a $3m mortgage generates roughly $52,500 in transaction taxes before legal fees. Accordingly, expat tax Miami budgeting should treat completion day as a taxable event in its own right.
Homestead Exemption, Save Our Homes and the 2026 Figures
Florida grants a homestead exemption to permanent residents, and for 2026 the total reaches $51,411. The first $25,000 applies to all taxing authorities. Meanwhile, the second slice, now $26,411 after inflation indexation, applies to assessed value between $50,000 and $75,000 and excludes school taxes. Against a typical Miami-Dade millage near 17.6 mills, the relief is worth only a few hundred dollars a year. Therefore expat tax Miami planning should treat the exemption as modest, not decisive.
Save Our Homes and the Non-Homestead Cap
The Save Our Homes provision caps annual increases in assessed value at 3% or the change in the consumer price index, whichever is lower. Importantly, the cap attaches only once homestead status is granted, and the 2026 application deadline falls on 1 March. Non-homestead property carries a looser 10% cap instead. Consequently, an investment condominium in Edgewater can revalue three times faster than the family home next door, which makes portfolio structure a live expat tax Miami question.
The SALT Cap Trap for High Earners in 2026
The One Big Beautiful Bill Act lifted the state and local tax deduction cap to $40,400 for 2026. However, the cap phases down by 30 cents for every dollar of modified adjusted gross income above $505,000, subject to a $10,000 floor. A joint filer reaches that floor at roughly $606,333. Consequently, a Miami household paying $70,000 of property tax deducts $10,000 and absorbs the rest, exactly as a New York household would. In short, expat tax Miami arithmetic gives high earners less federal relief than the headline suggests.
Establishing Florida Residency Without Losing the UK Argument
Two residence tests run simultaneously when you move, and they answer to different masters. Furthermore, getting one right while neglecting the other produces the worst of both systems. In expat tax Miami work, this pairing causes more disputes than any other issue.
Domicile, the Declaration and the Overt Acts
Florida domicile requires intent plus physical presence. A Declaration of Domicile filed with the Clerk of Courts evidences intent, yet it proves nothing on its own. Accordingly, a Florida driver licence, voter registration, vehicle titles and a genuine pattern of days all matter. In our experience, clients who keep a Manhattan apartment and file a Florida declaration invite a state residency audit rather than settling the question. Robust expat tax Miami files therefore record days, flights and utility patterns from the outset.
The Statutory Residence Test and Split-Year Treatment
Britain decides your UK status through the Statutory Residence Test, which counts days, ties, homes and work patterns. Moreover, split-year treatment can divide the tax year of departure, but only where a specific statutory case applies. Therefore the date you take up Miami accommodation, and the date you cease UK work, both carry hard consequences. Sound expat tax Miami preparation captures these dates contemporaneously.
Why the Arrival Year Is the Expensive One
The arrival year produces two part-year positions and frequently a period of dual residence. Consequently, the treaty tie-breaker in Article 4 may need to run, and Form 8833 may need to disclose the position. Additionally, the UK payments-on-account system can demand tax on a year you no longer expect to have. Our tax treaty optimisation service exists largely for this twelve-month window.
Your UK Income After the Move to Miami
Leaving Britain does not end British tax. Instead, it narrows it to UK-source items and changes the rules that apply to them. Consequently, half of every expat tax Miami engagement we run concerns income that never left the United Kingdom.
UK Rental Profits and the Non-Resident Landlord Scheme
A landlord whose usual place of abode sits outside the United Kingdom falls within the Non-Resident Landlords Scheme. Agents then deduct tax before paying the rent across. However, form NRL1i secures gross payment and moves the charge into Self Assessment instead. Critically, HMRC has confirmed that the scheme rate follows the new property basic rate, so withholding rises from 20% to 22% on 6 April 2027. Few competitor guides have noticed that consequence, yet it makes gross-payment approval more valuable to every expat tax Miami landlord.
The Section 811 Disregarded Income Cap
Non-residents may cap their UK liability under ITA 2007 section 811. The cap limits UK tax to tax deducted at source on disregarded income, plus tax on everything else computed as though that income never existed. Section 825 lists the disregarded categories, including UK dividends and UK bank interest. Because neither suffers deduction at source, the UK charge on them can fall to nil. However, electing the cap forfeits the personal allowance, so the comparison needs running both ways.
Why 2026 Tips More Cases Onto the Disregarded Basis
Finance Act 2026 repealed the notional dividend tax credit for non-residents from 6 April 2026. Consequently, the ordinary computation became dearer, and the disregarded basis now wins in cases where it previously lost. For a Miami household holding a large UK dividend portfolio, the saving can reach five figures annually. Therefore any competent expat tax Miami review tests section 811 every single year rather than once on departure.
UK Pensions, the State Pension and Article 17(3)
Article 17(3) of the US-UK treaty makes social security payments taxable only in the recipient's country of residence. Accordingly, a Miami resident's UK State Pension is taxable in America alone, and the savings clause does not claw that back. Importantly, IRS Publication 915 treats foreign social security as an annuity, so the full amount enters income. The 85% worksheet that applies to US Social Security does not apply here. The full new State Pension runs at £241.30 a week for 2026/27, and it belongs on the federal return of every expat tax Miami retiree.
The Personal Allowance Depends on Your Passport
A non-resident keeps the £12,570 UK personal allowance only through a qualifying status, and ITA 2007 section 56 grants it to British and EEA nationals. Consequently, a British citizen in Miami deducts the allowance from UK rental profits, while a US-only spouse in the identical position pays from the first pound. The United States appears nowhere on HMRC's treaty allowance list. In mixed-nationality households, therefore, property ownership should sit with the British passport holder wherever commercially sensible. This single point reshapes many expat tax Miami ownership structures.
Federal Reporting: The Thresholds That Fall When You Live in America
Here sits the single most common error in the expat tax Miami population, and it is expensive. Living in the United States lowers your foreign asset reporting thresholds dramatically.
Form 8938 at $50,000, Not $200,000
The FATCA reporting thresholds differ by where you live. Taxpayers living abroad file Form 8938 at $200,000 year-end or $300,000 at any point, rising to $400,000 and $600,000 for joint filers. Taxpayers living in the United States file at just $50,000 and $75,000, or $100,000 and $150,000 jointly. Consequently, a British family that never needed Form 8938 in London frequently needs it in their first expat tax Miami filing year.
Missed FBAR Filings and the Catch-Up Route
Separately, the FBAR captures any aggregate foreign account balance exceeding $10,000 at any moment in the year. Notably, it reaches accounts you merely sign on, including a parent's UK account and a UK company account. Missed FBAR filings accumulate quietly, and our FBAR and FATCA compliance service handles the catch-up work. Where several years are outstanding, the IRS Streamlined Filing Compliance Procedures usually provide the route back.
ISAs, Missed Reporting and the Investment Account Problem
An ISA loses every advantage at the US border. Furthermore, its underlying funds typically constitute passive foreign investment companies, producing punitive treatment and a separate annual form for each holding. Missed reporting of pension and investment accounts is the issue we see most often in new expat tax Miami clients. Accordingly, an early portfolio review beats a late disclosure every time.
The Currency Trap Nobody Mentions in the Relocation Brochure
This section carries the most valuable point in the guide, and almost no competing page covers it. It concerns the moment you convert sterling to dollars.
Section 988 Gains When Your Tax Home Is Miami
Section 988 taxes the gain you make on holding foreign currency. Importantly, depositing into or withdrawing from a sterling account is not a disposal, so nothing accrues annually. The gain crystallises when you convert to dollars. Consequently, a British household that converts £3m to buy in Coconut Grove can realise a substantial taxable gain measured from the date each pound was acquired.
Why Miami Residence Removes the Credit
Section 988 sources currency gain by the taxpayer's residence, which for an individual means the country of their tax home. A Londoner therefore has foreign-source gain that credits can shelter. However, a Miami resident has US-source gain and no shelter at all. Meanwhile, HMRC exempts individual foreign currency bank accounts entirely under the simple-debt treatment, so no UK tax exists to credit. The charge is genuinely uncushioned, which makes the conversion date the sharpest expat tax Miami planning decision of the whole move.
The $200 Rule Is a Cliff, Not an Allowance
Personal transactions escape section 988 where the gain is $200 or less. Above that figure, however, the entire gain becomes taxable rather than the excess. Additionally, the rule applies transaction by transaction. Therefore an expat tax Miami review should model the conversion in tranches and document the acquisition cost of every sterling balance before the move.
Selling UK Assets From a Miami Base
Disposals create the sharpest double-tax risk, because both countries claim the gain and the relief rarely aligns cleanly.
Sixty-Day UK Reporting on Land Disposals
A non-resident selling UK land must report within 60 days, even where the disposal produces a loss or no tax at all. Moreover, the obligation covers residential, non-residential and indirect disposals of 25% or more in property-rich companies. HMRC's guidance on capital gains tax for non-residents sets out the mechanics. Penalties for late reporting apply automatically, and they surprise expat tax Miami clients who assume Self Assessment covers it.
The Foreign Tax Credit and Why It Strands
The foreign tax credit relieves UK tax against US tax on the same income, claimed on Form 1116. However, the credit works basket by basket and source by source. Consequently, UK tax on a property gain cannot shelter US tax on a Miami consultancy fee. Excess credits then carry back one year and forward ten, frequently expiring unused. In practice, this is why expat tax Miami clients with UK-heavy balance sheets need the disposal sequenced, not merely reported.
Temporary Non-Residence and the Five-Year Rule
Britain reclaims gains on certain assets if you return within roughly five years of leaving. Therefore a Miami stay planned as a three-year secondment carries a retrospective UK charge on portfolio disposals made while away. Additionally, the 3.8% net investment income tax applies to those gains in America and earns no UK credit. Accordingly, intended duration belongs in every expat tax Miami planning file from day one.
A Worked Case Study in Expat Tax Miami: The Coconut Grove Household
Consider James and Priya, a British couple who moved from Fulham to Coconut Grove in September 2025. James holds British citizenship alone. Priya holds both British and US passports, making her a dual national US UK filer from birth. They arrived with a Battersea flat let at £62,000 a year, a UK dividend portfolio yielding £48,000, £2.4m in sterling deposits and two ISAs.
They assumed Florida solved everything, as most expat tax Miami arrivals do. In reality, four charges landed. First, the federal return taxed their worldwide income, including the UK rent and dividends, at rates reaching 37% plus the 3.8% surcharge. Second, the UK taxed the rental profit, with the letting agent withholding 20% until they filed form NRL1i. Third, converting £1.9m to buy the Grove house triggered a section 988 gain of roughly $141,000, sourced to the United States and uncreditable because HMRC taxes none of it. Fourth, their combined UK accounts crossed the $100,000 Form 8938 threshold that applies to residents of America, a form neither had ever filed.
The remedy ran on three tracks. We moved the Battersea flat into James's sole name, preserving the £12,570 personal allowance that Priya's position would have complicated. Next, we tested section 811 on the dividend portfolio; the disregarded basis cut the UK charge on £48,000 of dividends from about £16,900 to nil, while the replacement US tax at the 20% qualified rate came to roughly $12,400. Finally, we staged the remaining £500,000 of conversions across two tax years and documented the sterling acquisition dates properly.
The net result was a first-year saving of approximately $47,000 against their original plan, plus two missed FBAR years and one missed Form 8938 brought current before any IRS contact. Notably, none of that saving came from Florida. Every dollar came from managing the federal and UK interaction that the zero-rate headline had hidden.
How TaxYork Can Help With Expat Tax Miami Compliance
We prepare US and UK returns together, in one process, for British households across South Florida. Our expat tax Miami work covers federal returns, FBAR and Form 8938 reporting, UK Self Assessment, non-resident landlord filings, 60-day land disposal reports and treaty positions. Furthermore, we handle catch-up filings where returns or reports have been missed, including IRS Streamlined Filing submissions where the facts support them.
Clients come to us for expat tax Miami work because a single team runs both sides of the Atlantic. Consequently, nothing falls between two advisers, and no position taken in London contradicts a position taken in Washington. We also maintain a suite of cross-border tax calculators for clients who want to model outcomes before committing. Professional standards follow guidance from the Chartered Institute of Taxation and the ICAEW tax faculty.
Conclusion
Florida's promise is real but narrow. The state genuinely takes nothing from your income, and no legislature can change that without amending the constitution. However, federal tax reaches worldwide income, the United Kingdom keeps taxing UK property, pensions and land, and the currency conversion that funds your Miami house can generate an uncreditable US charge. Therefore the expat tax Miami saving is real only for households who manage what Florida leaves behind.
Compare that position with Illinois, where UK income is taxed at 4.95% with no foreign credit, or with Washington, which taxes capital gains despite having no income tax, and Miami looks strong. Ultimately, it is the cross-border preparation, not the postcode, that determines the bill.
Contact Us
Speak to us before you convert sterling, complete on a Miami purchase or file your first federal return. Early expat tax Miami advice costs a fraction of late remediation. To begin, book a consultation with our cross-border team.
Email hello@taxyork.com or telephone 020 3488 8606. We act for British households throughout Miami, Coral Gables, Key Biscayne, Fort Lauderdale and Palm Beach.
Disclaimer
This article provides general information on expat tax Miami matters and does not constitute tax advice. Tax legislation changes frequently, and the rates, thresholds and figures cited reflect our understanding at the date of publication. Individual circumstances vary considerably, and you should obtain professional advice tailored to your position before acting. TaxYork accepts no liability for action taken on the basis of this article alone. Further guidance is available from the Internal Revenue Service and from HMRC on UK income while living abroad, along with HMRC Self Assessment deadlines and the IRS totalisation agreements page.