United States
Hong KongHealth insurance and the health savings account
An HSA requires enrollment in a qualifying high-deductible health plan and offers a deduction going in, tax-free growth, and tax-free withdrawal for qualified medical expenses. It is the only triple-tax-advantaged account available.
The HSA is the part of this topic that carries planning weight, and it is frequently taught as a health product when it is really a retirement account in disguise.
Why the HSA is unusual
Deductible going in. Tax-free growth. Tax-free out for qualified medical expenses.
No other account does all three. A traditional IRA is deductible and taxable out; a Roth is taxed in and tax-free out. The HSA is both.
| Item | 2026 figure |
|---|---|
| Self-only contribution limit | USD 4,400 |
| Family contribution limit | USD 8,750 |
| Catch-up contribution from age 55 | USD 1,000 |
| Requires | Enrollment in a qualifying high-deductible health plan |
The retirement angle
Funds roll over indefinitely - there is no use-it-or-lose-it rule, which is the flexible spending account and not the HSA.
After 65, non-medical withdrawals are taxed as ordinary income without penalty, which makes the account behave like a traditional IRA. Medical withdrawals remain tax free at any age, and healthcare costs in retirement are substantial.
The advanced strategy is to fund the HSA, pay current medical costs from other money, keep the receipts, and reimburse yourself years later from a grown account. Questions do reach that far.
Once enrolled in Medicare you may no longer contribute to an HSA, though you may still spend the balance. A client planning to work past 65 needs to know this before enrolling, and there is a look-back on Part A enrollment that catches people.
HSA against FSA
| HSA | Health FSA | |
|---|---|---|
| Requires an HDHP | Yes | No |
| Rolls over | Indefinitely | Use it or lose it, with limited exceptions |
| Portable | Yes, it is yours | No, tied to the employer |
| Invested | Usually possible | No |
| Available in full at the start of the year | No, as funded | Yes, the full election |
COBRA
Continuation of employer coverage after a qualifying event, at the employee's own cost plus an administrative charge.
18 months for termination or reduced hours. 29 months where disability applies. 36 months for a spouse or dependant on divorce, death, or a child aging off the plan.
Those three numbers are examinable and are the most concrete facts in the topic.
The plan types
HMO - a network and a gatekeeper, cheapest, least flexible. PPO - a network with out-of-network coverage at higher cost. EPO - a network with no out-of-network cover except emergencies. POS - a hybrid. HDHP - high deductible, HSA eligible.
Questions ask which suits a described client, and the trade-off is always cost against flexibility.
Dollar limits here are indexed annually and several were changed by recent legislation. Confirm the current figure before relying on it, and expect the exam to test the rule rather than the number.
Common questions
Why is an HSA triple tax advantaged?
Contributions are deductible, growth is tax free, and withdrawals for qualified medical expenses are tax free. No other account offers all three.
What do you need to contribute to an HSA?
Enrollment in a qualifying high-deductible health plan. The 2026 limits are USD 4,400 self-only and 8,750 family, with a 1,000 catch-up from age 55.
What is the difference between an HSA and an FSA?
An HSA requires a high-deductible plan, rolls over indefinitely, is portable and can be invested. An FSA is use-it-or-lose-it, tied to the employer, and available in full from the start of the year.
Can you contribute to an HSA on Medicare?
No. Enrollment in Medicare ends contributions, though the existing balance can still be spent. There is a look-back on Part A enrollment that catches people working past 65.
How long does COBRA last?
18 months for termination or reduced hours, 29 months where disability applies, and 36 months for a spouse or dependant on divorce, death or a child aging off the plan.