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Leaving your home tax residency for Panama: the 18-month plan (2026)

You're thinking of moving to Panama but you're not sure whether you'll really be treated as a non-resident for tax. Here's the US reality (citizenship-based taxation), the UK Statutory Residence Test, the exit tax, foreign-account reporting, and the 18-month timeline to leave cleanly without getting reassessed in 3 years.

Inside Panama2026-05-20✓ field-verified

Tax document and passport on a desk
Tax document and passport on a desk

You can’t just “decide” you’re a non-resident for tax

Your home country sets the criteria for tax residency, and the tax authority applies them unilaterally. Your perception of the situation doesn’t matter — only the facts do. And one country’s rules differ sharply from another’s. Two cases dominate for our readers: the United States (the hard case) and the United Kingdom.

If you’re a US citizen or green-card holder — read this first

The US is one of only two countries that tax on citizenship, not residency. Moving to Panama does not make you a US non-taxpayer. As long as you hold US citizenship or a green card, you file a US return on your worldwide income every year, wherever you live.

What moving abroad does give you:

The only way to truly exit the US tax system is to renounce citizenship (or formally abandon the green card) — which can trigger the §877A exit tax (see below). Be honest with yourself about which path you’re on before you start.

If you’re a UK resident — the Statutory Residence Test

The UK uses the Statutory Residence Test (SRT). It works in three layers:

Layer What it checks
Automatic overseas tests E.g. < 16 days in the UK, or full-time work abroad with limited UK days → automatically non-resident
Automatic UK tests E.g. 183+ days in the UK, or your only home is in the UK → automatically resident
Sufficient ties test Combines UK days with ties (family, accommodation, 90-day, work, country). The more ties, the fewer UK days you’re allowed

Split-year treatment can make part of your departure year non-resident. And beware temporary non-residence: if you return to the UK within roughly 5 years, certain gains and income realized while away can be taxed on return.


No tax treaty with Panama

Many expats expect a bilateral treaty to resolve “dual residence” in their favor. There is no comprehensive income-tax treaty between Panama and the US (only a TIEA for information exchange), nor a full one with the UK.

Consequences:


The 18-month timeline to leave cleanly

The big mistake most people make: believing they become a “non-resident” the day they board the plane. That’s false. A change of tax residency is a process that spans at least 18 months.

Period Key steps
M-18 to M-12 Firm decision. Net-worth review. Exit-tax assessment. Global tax plan.
M-12 to M-9 Engage a cross-border tax adviser if net worth > USD 500k. Start the Panama visa.
M-6 to M-3 Sell or let your home property. Wind down home-country tax-advantaged accounts. Choose insurance.
M-3 to M-1 Panama housing found. Panama accounts started. Cease/transition home-country work.
M0 (departure) Flight to Panama. Notify the tax authority (US: keep filing as expat; UK: file form P85).
M+1 to M+3 Settle in Panama. Bank account. Cédula. Contador engaged.
M+10 to M+12 DGI Panama tax-residency certificate. First post-departure home filing.
M+13 to M+18 Non-resident status recognized (UK) / clean expat filing position (US).

⚠️ The fatal rushed-departure mistake: you trigger an exit tax you could have planned around, you forget to report a foreign account → heavy penalties, your final home-country assessment lands on you, and you end up with murky health cover for 3-6 months. Count on 18 months minimum.


The exit tax

US — IRC §877A (only if you renounce)

The US exit tax applies only when you expatriate (renounce citizenship or give up a long-held green card) and you’re a “covered expatriate” — meaning you hit any of:

A covered expatriate is taxed as if they sold all worldwide assets at fair market value the day before expatriation (a mark-to-market tax), above an exclusion amount. If you’re not renouncing, §877A doesn’t apply — but you also haven’t left the US tax system.

UK — no general exit tax, but watch CGT and temporary non-residence

The UK has no broad exit tax on unrealized gains for individuals. But: gains on UK land and property remain taxable, and the temporary non-residence rules can tax gains/income realized abroad if you return within ~5 years. Time disposals of big assets for after you’re clearly non-resident.

💡 If you hold more than ~USD 500k in appreciated assets or a controlling stake in a company, consult a cross-border tax adviser 12-18 months before departure. USD 2,500-5,000 for a full study can save you tens of thousands.


Foreign-account reporting (FBAR / FATCA / CRS)

While you remain a tax-resident (UK) or a US person (US), you must report foreign accounts.

US persons

UK residents

Typical accounts a new Panama expat reports

Account Reported by
Personal Wise USD FBAR / Form 8938 (US); worldwide income (UK while resident)
Personal Wise EUR FBAR (US)
Panama bank (personal) FBAR (US)
SA account (Multibank, if applicable) FBAR + likely Form 5471 (US CFC)
PayPal Business SA FBAR (US)
Binance / Kraken / Coinbase FBAR if custodial (US)

That’s typically 4-6 accounts to report each year while you remain in the home-country net.


Notifying your home-country tax authority

US

You don’t “deregister” — you keep filing a 1040 as a US person abroad. Update your address, claim FEIE/FTC where relevant, attach FBAR/8938. If you renounce later, you file a final return + Form 8854.

UK

  1. On departure: file form P85 (or report leaving via Self Assessment) with your exact departure date and new Panama address.
  2. The following filing season: complete Self Assessment with the residence pages (SA109), claiming split-year treatment if applicable.
  3. Keep evidence of your departure date (flight, Panama lease) — this date is crucial and must be documented.

⚠️ Anticipate a residence enquiry: authorities can open a residence review in the 18-24 months after you leave. Prepare ahead: Panama utility bills, your lease, flights, and the DGI tax-residency certificate. With a clean file, you answer in 30 minutes.


Your home-country accounts: keep, close, transform

Account / product Keep? Recommended action
Main current/checking account Yes (one) Simplify, report on FBAR
Ordinary savings Yes Keep for home-currency savings
Tax-advantaged accounts (US: IRA/401k; UK: ISA) Mixed IRA/401k: keep, no new contributions without earned-income basis. ISA: loses its tax-free status for non-residents — you can keep it but can’t add to it
Brokerage (taxable) Yes, but Many US brokers restrict non-resident accounts — confirm before moving
Pension (US 401k / UK SIPP) Yes Leave invested; mind withholding on withdrawals
Business accounts No Close if the activity is wound down

Note (US): some US brokerages freeze or close accounts once your address is abroad. Sort out a broker that accepts overseas residents before you move.


Health insurance: international vs local

Once out of your home public system, you have no home cover abroad (Medicare doesn’t travel; the NHS is residence-based). 3 options to bridge:

Option Annual premium For whom
International private (Cigna Global, Allianz, GeoBlue, IMG) USD 1,500-5,000 Families, potentially costly care, frequent travelers
Local Panamanian (ASSA, Mapfre Panama) USD 600-1,500 Healthy singles on a tighter budget
Hybrid (local + international top-up) Variable Best coverage-to-cost for many

Timing: buy at least 30 days before departure. Underwriting and policy activation take time.


The first 12 months in Panama — consolidation

Months 1-3 — Administrative setup

Months 3-6 — Economic consolidation

Months 6-12 — Documenting tax residency

The DGI Panama tax-residency certificate is the central document that formalizes you as a Panamanian tax resident in the eyes of your home authority.

⚠️ The step you must not skip: most expats never request a tax-residency certificate from DGI Panama. The consequence: 3-4 years later, the home authority asks them to prove Panamanian tax residency. Without an official certificate = reconstructing proof from scattered documents. Request the certificate within the first 12 months. USD 50 and 8 weeks.


Inside Panama’s Memo #6: Leaving home tax residency for Panama

What you’ve just read is the skeleton. Inside Panama’s Memo #6 details each step with:

PDF + mobile HTML format, 40 pages, updated May 2026.

👉 Buy the memo — $34

Or join the Inside Panama newsletter for our expat-tax updates every week:

📧 Join the newsletter

⚖️ This article is informational and country-general. Tax residency is fact-specific and the rules differ sharply by nationality. Always confirm your position with a cross-border tax adviser qualified in your home country before acting.


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Article published on 20 May 2026 by the founders of Inside Panama, a brand of LAS FUNDADORAS HERMANAS S.A. (RUC 155776412-2-2025).