What is geoarbitrage?

Earning or holding assets in a high-cost economy while living in a lower-cost one, so your money buys more. In a FIRE context it works on the denominator rather than the numerator: because your FIRE number is roughly 25 times annual spending, cutting spending from $60,000 to $30,000 cuts the target from $1.5M to $750,000. No investment strategy produces a change of that magnitude.

Do I still pay US taxes if I retire abroad?

Yes. The United States taxes citizens and permanent residents on worldwide income regardless of where they live, and you must keep filing. The Foreign Earned Income Exclusion — $132,900 for tax year 2026 — only applies to earned income from work performed abroad, not to dividends, interest, capital gains, or retirement account withdrawals. Since most FIRE retirees live on investment income, the FEIE typically does not help them. The Foreign Tax Credit is usually the more relevant provision.

Does Medicare work overseas?

Almost never. Medicare generally does not cover care received outside the United States, with a few narrow exceptions. Retirees abroad typically buy into the local public system where permitted, purchase local private insurance, or hold an international health policy. Many find that adequate care in a lower-cost country runs a fraction of what US insurance costs, which is a substantial and often decisive part of the geoarbitrage case.

Can I collect Social Security while living abroad?

In most countries, yes — Social Security can be paid to eligible recipients living overseas, and payments can be sent to a foreign bank in many cases. There are a small number of countries where payments cannot be sent. Rules also differ for non-citizens. Check the Social Security Administration's payments-abroad screening tool for your specific country before you plan around it.

What is domestic geoarbitrage?

Applying the same idea inside your own country — moving from an expensive metro to a cheaper region, often to a state with no income tax. You keep Medicare, Social Security administration, your banking, your legal system, and your family proximity, while cutting housing costs substantially. It captures a large share of the financial benefit with a fraction of the complexity, and it is where most people should start.

How much can geoarbitrage really cut a FIRE number?

It depends entirely on your current spending and your destination, and the honest range is wide. Moving from a high-cost US metro to a low-cost country can plausibly halve spending, which halves the FIRE number. Moving from an already-modest US cost base to a mid-cost European city may cut very little once healthcare, visa costs, and travel home are included. Model your actual budget in the actual destination rather than trusting a cost-of-living index.

Geoarbitrage FIRE 2026: Retire Abroad, Cut Your FIRE Number

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Every other FIRE lever works on the numerator. Earn more, invest better, save harder — all of it grows the portfolio you need to accumulate.

Geoarbitrage works on the denominator, and that is why it is so much more powerful than it looks.

Your FIRE number is roughly 25 times annual spending. Cut spending from $60,000 to $30,000 and your target drops from $1.5 million to $750,000. You did not earn a dollar more or pick a better fund. You halved the finish line.

Nothing else in personal finance produces a change of that size. Which is exactly why the honest version of this article has to spend most of its length on what it costs.

The Math, Stated Plainly

Annual spending	FIRE number at 25x	Years to reach at $40k/yr saved, 7% real
$80,000	$2,000,000	~24 years
$60,000	$1,500,000	~21 years
$40,000	$1,000,000	~17 years
$30,000	$750,000	~14 years

The second-order effect is larger than the first. Lower spending both reduces the target and, if you cut spending while still working, increases the savings rate — the two compound against the timeline together. Run your own version in the FIRE calculator and the FIRE budget calculator.

There is a third effect people miss: a lower cost base makes your withdrawal rate more resilient. If your spending is $30,000 and your portfolio is $1.2M, you are withdrawing 2.5% rather than 4%, and the sequence of returns risk that dominates early retirement outcomes largely stops being a threat.

Start With Domestic Geoarbitrage

Before the passports and visas, note that most of the financial benefit is available without leaving the country.

Moving from an expensive coastal metro to a lower-cost region can cut housing — usually the largest line in any budget — by half or more, and moving to a state with no income tax adds a permanent percentage back to every withdrawal.

What you keep by staying: Medicare eligibility at 65, straightforward Social Security administration, US banking and brokerage access without complication, your legal system, your professional network, and proximity to family. What you give up: much less than an international move.

Domestic geoarbitrage captures a large share of the benefit at a small fraction of the complexity, and it is where the analysis should start rather than where it gets skipped.

The International Version: What It Actually Costs

Taxes do not stop

The United States taxes citizens and permanent residents on worldwide income regardless of residence. You keep filing, every year, forever, unless you renounce citizenship — which has its own exit tax regime and is not a casual decision.

The Foreign Earned Income Exclusion will probably not help you. The FEIE is $132,900 for tax year 2026, and it excludes earned income from work performed abroad. It does not apply to dividends, interest, capital gains, rental income, pensions, or retirement account withdrawals.

Read that list again — it is the entire income of a typical FIRE retiree. The FEIE is built for expat workers, not expat retirees. If you are living on a portfolio, it does nothing for you.

The Foreign Tax Credit is usually the relevant provision instead. If your country of residence taxes your income, the FTC generally lets you credit foreign tax paid against US tax owed on the same income, preventing double taxation. Whether that leaves you better or worse off depends entirely on the destination country's rates and its treaty with the US.

Additional filing obligations that catch people out:

FBAR — required if your aggregate foreign financial accounts exceed $10,000 at any point in the year. The penalties for non-filing are severe and the threshold is low.
FATCA / Form 8938 — additional reporting above higher thresholds.
PFIC rules — this one is genuinely punitive. Buying foreign-domiciled mutual funds or ETFs can trigger passive foreign investment company treatment with brutal tax consequences. Keep your investments in US-domiciled funds. This is the single most expensive mistake available to a new expat investor.

Healthcare changes completely

Medicare generally does not cover care outside the United States. A few narrow exceptions exist, and they do not amount to coverage.

Your options abroad are typically to buy into the local public system where residency permits it, purchase local private insurance, or hold an international policy. In many lower-cost countries, high-quality private care costs a fraction of US insurance — and for a lot of people this is the largest single item in the geoarbitrage case, not housing.

Two complications worth planning around. If you might return to the US later, Medicare Part B late enrolment penalties are permanent and increase with each year of delay — this needs deliberate handling, not assumption. And pre-existing conditions are handled very differently by international insurers than by US plans.

If you are retiring early and staying in the US, the relevant reading is health insurance in early retirement and the ACA subsidy cliff — and note that ACA plans generally do not cover you abroad either.

You need legal permission to stay

Tourist visas are not a retirement plan, and "visa runs" every 90 days are a lifestyle, not a strategy — many countries have tightened enforcement specifically against them.

The realistic routes are retirement or passive-income visas offered by a number of countries with a demonstrated minimum income requirement; digital nomad visas, which usually require active income and therefore fit poorly with retirement; ancestry or descent citizenship if you qualify; and investment residency programmes.

Requirements change, sometimes quickly, and a programme you planned around can close. Do not build a plan that depends on one specific visa remaining available.

Currency risk is real and permanent

Your assets are in dollars. Your expenses are not. A 20% currency move against you is a 20% pay cut, and it can persist for years.

Partial mitigations: keep a larger cash buffer than you would domestically, retain flexibility to relocate, and consider a destination whose currency is pegged to or moves with the dollar. There is no clean hedge for a 40-year liability in a foreign currency.

Banking gets harder

Some US brokerages restrict or close accounts for customers with foreign addresses. Some will not open new ones. Foreign banks may decline US customers entirely because of FATCA reporting obligations.

Sort this out before you move: confirm your brokerage's policy on foreign residency in writing, maintain a US address and phone number where legitimate, and expect the process to be more annoying than it should be.

The costs nobody budgets

Flights home. Two people, twice a year, long-haul, is a meaningful annual line item.
Family emergencies. Distance has a price, and it is not only financial.
Setup costs — visas, legal fees, shipping, deposits, furnishing.
The failed attempt. A significant share of expat moves reverse within two years. Budget for the possibility rather than assuming it away.
Isolation. The most commonly cited reason people return, and the least commonly modelled.

How to Do This Properly

1. Model the actual budget, not an index. Cost-of-living indices are averages for locals. Build a real line-by-line budget for the specific city, including healthcare, visa costs, and flights home. Run it through the FIRE budget calculator.

2. Do a long trial before committing. Three months minimum, ideally including the worst season. Rent, do not buy. A two-week holiday tells you nothing about living somewhere.

3. Get professional tax advice before you go, not after. A US expat tax specialist for one consultation is cheap relative to a PFIC mistake or an FBAR penalty.

4. Restructure investments first. US-domiciled funds, brokerage confirmed as expat-friendly, a US address maintained where legitimate. Doing this after you have moved is much harder.

5. Keep a re-entry plan. Enough of a buffer and enough US infrastructure — accounts, credit, an address — that returning is a choice rather than a crisis.

6. Do not renounce citizenship for tax reasons without expert advice. The exit tax regime is complex and the decision is irreversible.

Who This Actually Works For

It works well for: people with genuinely high current spending driven by an expensive location; people who have already spent extended time abroad and know they like it; couples where both are committed to it; people with flexibility to move again if it does not work.

It works badly for: people running from a problem that will follow them; people with close caregiving obligations at home; people who have never lived abroad; anyone treating it as the only way their numbers work — a plan that requires the move to succeed has no fallback.

And the honest caveat: if your current spending is already modest, the arithmetic gets thin fast. Moving from a $45,000-a-year US life to a mid-cost European city may save very little once healthcare, visa costs, currency risk, and flights home are counted. The dramatic examples always start from a high-cost baseline.

Geoarbitrage is the most powerful lever in FIRE. It is also the one where the spreadsheet and the lived experience diverge most, and the divergence is usually not in the spreadsheet's favour.

Related Guides and Tools

This article is for educational purposes and is not personalized financial, tax, immigration, or legal advice. US expat taxation, visa requirements, and healthcare access vary enormously by country and change frequently. The 2026 FEIE figure is from IRS inflation adjustments and applies to earned income only. Consult a US expat tax specialist and a qualified immigration advisor for your specific situation before relocating. Last updated: August 2026.

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