Health Insurance for US Expats: ACA, International Plans, HSA & Medicare (2026)

Health coverage is the most practically urgent financial issue for Americans moving abroad — and it's rarely planned well. Your US employer plan almost certainly stops covering you the day you relocate. Your ACA marketplace plan won't pay a bill in London or Singapore. Medicare doesn't cover overseas care at all. And the foreign plans that do cover you come with US tax and HSA eligibility questions most advisors never address. This 2026 guide covers your real options, the key tax traps, and what to decide before you leave.

1. Why Your Current US Coverage Fails Abroad

Employer group health plans

Most US employer-sponsored plans (administered by BCBS, Aetna, UnitedHealthcare, Cigna domestic, etc.) cover you only in the US provider network. The standard exception is emergency care abroad — but the definition of "emergency" is narrowly construed, reimbursement requires out-of-pocket payment upfront, and the coverage is not designed for the routine doctor visits, prescriptions, specialist referrals, and hospital admissions that living abroad requires.

Many group plan documents include a "service area" provision that limits coverage to US healthcare providers entirely. Even where international emergency coverage exists, maximum benefit caps, network exclusions, and pre-authorization requirements make it impractical as your primary coverage in a foreign country.

If you're moving abroad for 60 days or more, treat your US employer plan as effectively providing zero coverage for your new home country.

Individual US health insurance

Same issue: ACA-compliant individual plans sold through state or federal exchanges are designed for US in-network providers. Out-of-country coverage (if any) is typically limited to emergencies, with the same upfront-pay-then-reimburse mechanics, the same benefit caps, and the same underlying assumption that you live in the US.

COBRA — usually not worth it

When you leave an employer, COBRA lets you continue their group health plan for up to 18 months. You pay the full premium — both the employer's contribution and your portion, plus a 2% administrative fee. For a single adult this is often $600–$1,800/month depending on the plan and employer.⁴

COBRA makes sense in a narrow set of situations:

• Short-term assignment (under 6 months) where you'll need continuous US coverage soon
• Active US-based medical treatment (oncology, surgery recovery) that requires continuity with specific US providers
• Bridge coverage for a month or two while international insurance is being arranged

For a multi-year or permanent relocation, COBRA is expensive coverage for a country you no longer live in. International health insurance is almost always the more cost-effective and practical solution.

2. Your Real Coverage Options Abroad

International health insurance (expat plans)

Purpose-built international health insurance covers you for planned and routine care in your country of residence, plus emergencies worldwide, plus medical evacuation and repatriation. Major carriers include Cigna Global, Allianz Care, BUPA International, and Aetna International (among others — this is not an endorsement of any specific carrier).

Key things to evaluate when choosing an international plan:

• Inpatient vs. outpatient coverage. Some plans cover hospital stays only ("inpatient-only"). Full expat plans also cover routine outpatient visits, specialist appointments, imaging, and prescriptions. For a full relocation, comprehensive coverage is generally worth the premium difference.
• US coverage inclusion. International plans vary significantly on whether they cover care in the US, and at what cost. If you travel back regularly or plan to return, confirm US coverage scope — some plans exclude the US or charge substantially higher premiums to include it.
• Pre-existing condition waiting periods. Most international plans have underwriting that may exclude or defer coverage for pre-existing conditions. Review carefully if you have ongoing health conditions.
• Maternity and mental health coverage. These are frequently excluded from base plans or subject to waiting periods. Add these riders if relevant to your situation.
• Direct billing vs. reimbursement. Plans with direct billing arrangements at your local hospitals eliminate the need to pay upfront. In countries with high-quality private healthcare (UK, Germany, Singapore, UAE), direct billing is widely available.

International health insurance is generally not expensive relative to US group health insurance — a healthy 40-year-old can typically find comprehensive single coverage for $200–$400/month depending on country, plan tier, and deductible. Premiums rise significantly with age and with US coverage inclusion.

Host-country national health systems

Some countries include US expats in their national health system once you've established residency. Germany's statutory health insurance (GKV) is mandatory for employees earning under the income threshold (Versicherungspflichtgrenze — ~€73,800 in 2026). The UK's NHS is available to UK tax residents. France's Sécurité Sociale is available to residents working for a French employer.

In these countries, your employer's mandatory social insurance contributions often provide substantial health coverage that supplements or replaces the need for private international insurance. Understand what your host-country employer plan provides before purchasing separate international coverage.

Employer-provided international plan

Many multinationals that send employees abroad provide international group health coverage as part of the expat package. If your employer provides this, confirm:

• Does it cover your dependents (including a non-citizen spouse)?
• Does it cover the US for when you're home visiting?
• Are premiums paid by the employer excluded from your US income? Employer-paid premiums for qualifying group health coverage under IRC §106 are excluded from US gross income. If your foreign employer's plan meets §105 requirements (it must be an accident and health plan covering employees and dependents), premiums paid by your employer are US tax-free to you. However, if the plan is a "foreign plan" that doesn't meet US insurance requirements, some planners take a conservative position; review with a specialist.
• Does it qualify as a group health plan (GHP) for Medicare Special Enrollment Period purposes? (See Medicare section below.)

3. The ACA MAGI Trap for Expats

Many US expats consider keeping or enrolling in an ACA marketplace plan, attracted by the idea that subsidies might reduce the premium cost. The trap: the Foreign Earned Income Exclusion does not reduce your MAGI for ACA Premium Tax Credit (PTC) purposes.

Under IRC §36B(d)(2)(B), Modified Adjusted Gross Income for ACA premium tax credits is computed as: AGI plus (1) tax-exempt interest, (2) the §911 foreign earned income and housing exclusion, and (3) non-taxable Social Security benefits.³ The statute explicitly adds back the FEIE exclusion.

What this means in practice:

In 2026, the ACA premium tax credit is available to individuals with MAGI between 100% and 400% of the federal poverty level. For a single adult, 400% FPL is approximately $61,520 in 2026. (The enhanced subsidies that temporarily removed the 400% ceiling expired at the end of 2025; the original cliff returned January 1, 2026.)⁵ Most employed US expats working full-time abroad will have ACA MAGI above $61,520, meaning no PTC subsidy at all — while paying full ACA marketplace premiums for coverage that won't work where they live.

The exception: if you have mostly passive income (dividends, capital gains, rental income) that isn't excludable by FEIE and falls under 400% FPL, you may qualify for subsidies. But for working expats with earned income over $60K, the ACA is generally not a cost-effective solution.

4. HSA Eligibility While Abroad

Health Savings Accounts remain one of the best US tax vehicles — triple tax advantage (deductible contribution, tax-free growth, tax-free qualified withdrawals). Expats can continue to benefit, but there are two distinct issues: spending existing HSA funds, and contributing to an HSA.

Spending HSA funds abroad

You can use existing HSA funds to pay for qualified medical expenses anywhere in the world — there is no geographic restriction on withdrawals for qualified expenses.¹ Doctor visits, hospitalization, prescriptions, and other qualifying expenses in your country of residence are reimbursable from your HSA just as they would be in the US.

Contributing to an HSA abroad: the HDHP requirement

To contribute to an HSA in any year, you must be enrolled in a qualifying High Deductible Health Plan (HDHP) — and have no other "disqualifying coverage." This is where most expats lose access:

• Most international health insurance plans sold abroad do not qualify as HDHPs. They may not meet the minimum deductible thresholds ($1,700 individual / $3,400 family in 2026), or they may provide first-dollar coverage for certain services that disqualifies them under the HDHP definition.
• Host-country mandatory health coverage can be disqualifying. If you're enrolled in a foreign employer's health scheme or a mandatory national health system that provides first-dollar coverage, that coverage may disqualify your HSA eligibility even if you also have a separate HDHP.

OBBBA 2026 change: bronze and catastrophic ACA plans now qualify as HDHPs

A little-noticed change in the One Big Beautiful Bill Act (effective January 1, 2026) expanded the HDHP definition: ACA bronze and catastrophic plans now automatically count as qualifying HDHPs for HSA contribution purposes, even if purchased outside an exchange and regardless of whether they technically meet the standard HDHP deductible/OOP thresholds.²

What this means for expats: a US citizen abroad who purchases a US ACA bronze or catastrophic plan (often available for a relatively low premium, even without subsidy eligibility) can use that plan as the qualifying HDHP to maintain HSA contribution access — even though the ACA plan provides essentially no useful coverage abroad. This is primarily a US tax strategy: pay a modest ACA bronze premium to unlock $4,400/year in deductible HSA contributions, which can be invested and grow tax-free for use on medical expenses in the US or abroad.

Whether this makes financial sense depends on your HSA balance, marginal tax rate, and the cost of a US bronze plan in your state of domicile. For high earners in the 37% bracket, the tax savings on $4,400 of HSA contributions (~$1,628) may easily exceed the annual cost of a catastrophic plan premium. Discuss with a specialist before implementing.

Important caveat: if you're covered by a host-country national health plan or mandatory employer scheme that provides disqualifying coverage, the bronze plan approach may not restore HSA eligibility. The disqualifying-coverage rules apply regardless of what HDHP you also carry. IRS Notice 2026-5 provides further guidance.²

5. The Medicare Late Enrollment Trap (Critical for Expats Approaching 65)

Medicare is often the most expensive planning mistake for US expats who don't take action at 65. The core issue:

• Medicare Part B covers essentially nothing abroad. It covers US healthcare providers only, with three narrow exceptions (border emergency, cruise ship, Alaska–Canada transit) that almost never apply to expats.
• Missing your Initial Enrollment Period (IEP) creates a permanent 10% late enrollment penalty per 12-month delay. Delay 5 years and you pay 50% above the standard premium for the rest of your life. Delay 10 years and you pay double. The penalty doesn't go away.

The only exception that preserves penalty-free enrollment is a qualifying Special Enrollment Period (SEP) — available if you are actively employed and covered by a foreign employer's group health plan (GHP). Self-purchased international health insurance does not qualify. An expat who leaves employment at 65 and maintains only a private international plan has no SEP and must enroll in Part B during the IEP or face penalties.

For most expats intending to return to the US at some point: enroll in Part A at 65 (free if you have 40 quarters of work credits, no downside) and carefully evaluate whether to enroll in Part B based on your expected return timeline and employment status. For more detail, see our complete Medicare for expats guide including the IRMAA surcharge table and the FEIE–IRMAA planning opportunity.

6. Coordinating US and Foreign Health Coverage

Many expats end up with two layers of health coverage — a foreign plan for where they actually live and something US-based for return visits or future US residency. A few coordination points:

Pre-existing conditions and the timing of switching

International health insurance underwriting can exclude or defer pre-existing conditions. Purchase your international plan while healthy, before significant medical events occur. If you're considering moving abroad and have an existing condition, the sequencing of coverage matters.

Tax treatment of employer-paid international plan premiums

If your foreign employer pays your international health plan premiums, those premiums are generally excluded from your US taxable income under IRC §106 if the plan qualifies as an employer-sponsored accident and health plan. Confirm with your tax advisor whether your specific foreign plan meets US requirements — treatment can vary for plans offered by non-US entities.

Dependents — including a non-citizen spouse

Confirm your international plan covers your spouse and dependents, including any non-citizen family members. Non-citizen spouses may have separate coverage needs if they travel independently or have different health profiles. See our non-US spouse planning guide for the broader tax picture.

Dental and vision abroad

Dental and vision care are dramatically cheaper in most expat destinations compared to the US. Many expats find that paying out of pocket for dental care abroad (even quality private dentistry in the UK, Germany, Australia, or Southeast Asia) costs less than annual dental insurance premiums. Factor this into your coverage cost-benefit analysis.

7. Pre-Departure Health Coverage Checklist

1. Confirm your departure date and employer plan termination date. Most employer group plans end on the last day of the month of departure or end of employment — understand your exact coverage end date and don't leave a gap.
2. Purchase international health insurance before your US plan ends. Look for a plan with no pre-existing condition waiting period for currently healthy conditions. Buy before you move.
3. Decide on COBRA. Evaluate COBRA only if you have specific US-based medical care needs in the next 18 months. Otherwise, pass — the premium is too high for US-only coverage you won't use.
4. Understand your host-country health system. If your destination has mandatory employer health enrollment (Germany, France, Netherlands, etc.) or a universal national system (UK NHS, Australian Medicare for residents), understand what you're entitled to and when coverage begins — this may reduce what you need from private international insurance.
5. Review your HSA balance and contribution plan. If you have an existing HSA, you can continue spending it on qualifying medical expenses abroad. Evaluate whether a US ACA bronze plan makes sense to maintain HSA contribution access under the new OBBBA HDHP rules.
6. Age 63–64 action item: plan Medicare enrollment. If you're approaching 65, plan your Medicare enrollment carefully — whether to enroll at IEP or whether you have a qualifying SEP via foreign employer coverage. A planning mistake here compounds for the rest of your life.
7. Verify your international plan includes US coverage for return trips. If you visit the US regularly, confirm your international plan covers US emergencies or add a US-rider. Uninsured care in the US remains among the most expensive in the world.

1. IRS Publication 969 (2025): Health Savings Accounts and Other Tax-Favored Health Plans — HSA contribution limits, HDHP requirements, qualified medical expense spending rules. 2026 limits per IRS Rev. Proc. 2025-19: $4,400 self-only / $8,750 family; HDHP min deductible $1,700/$3,400; OOP max $8,500/$17,000. irs.gov/publications/p969
2. IRS Notice 2026-5: Guidance on expanded HSA eligibility under OBBBA — ACA bronze and catastrophic plans now qualify as HDHPs, telehealth exemption made permanent, Direct Primary Care arrangement rules. Effective January 1, 2026. irs.gov/pub/irs-drop/n-26-05.pdf
3. IRC §36B(d)(2)(B): MAGI for premium tax credit purposes — includes §911 foreign earned income and housing exclusions added back to AGI. 26 CFR §1.36B-1(e)(2). irs.gov — Q&A on the Premium Tax Credit
4. US DOL Employee Benefits Security Administration: COBRA continuation coverage overview — 18-month maximum for qualifying events including termination and reduced hours, 2% admin fee, full premium at employer's group rate. dol.gov — COBRA continuation coverage
5. ACA premium tax credit 2026: The enhanced subsidies created by the American Rescue Plan Act and extended by the Inflation Reduction Act expired December 31, 2025. The 400% FPL subsidy cliff (IRC §36B(b)(3)(A)) returned effective January 1, 2026. healthcare.gov — eligibility

Content verified as of July 2026. HSA limits, HDHP thresholds, Medicare premiums, and ACA subsidy rules reflect 2026 values. Verify current amounts with your advisor before acting.