The Basic Requirements for an HSA

You can open a Health Savings Account if you are enrolled in a high-deductible health plan (HDHP) and meet three conditions: you have no other health coverage, you are not claimed as a dependent on someone else's tax return, and you are not enrolled in Medicare. That is the core rule. Everything else flows from these three things.

The HDHP requirement is the one that matters most. Your plan must have a deductible of at least $1,600 for individual coverage or $3,200 for family coverage in 2024. These amounts change yearly. Your plan also cannot pay for anything before you hit that deductible, except for preventive care like vaccines and screenings. If your current plan does not meet these thresholds, you cannot open an HSA, even if you meet the other requirements.

The "no other coverage" rule is stricter than it sounds. You cannot have a spouse's health plan, a parent's plan, Medicare, Medicaid, TRICARE, or Veterans Affairs coverage running at the same time. You also cannot be covered by a health plan with a lower deductible. The only exception is coverage for specific things like dental, vision, or workers' compensation — those do not block you from an HSA.

Key Takeaways

  • You must be enrolled in a high-deductible health plan with a deductible of at least $1,600 (individual) or $3,200 (family) to open an HSA.
  • You cannot have any other health coverage at the same time, including a spouse's plan or Medicare, with limited exceptions for dental and vision.
  • You cannot be claimed as a dependent on someone else's tax return, and you cannot be enrolled in Medicare.
  • Your HDHP must come from a real insurance company or employer plan — it cannot be a short-term or limited-benefit plan.

What "High-Deductible" Actually Means

The deductible is the amount you pay out of your own pocket before your insurance starts to pay. A high-deductible plan sets that number higher than a standard plan. For 2024, the IRS defines a high-deductible plan as one with a deductible of at least $1,600 for you alone or $3,200 if your plan covers your family. These numbers are adjusted each year, so if you are reading this in a different year, check the current limits with your insurer or the IRS website.

The plan also has an out-of-pocket maximum — the most you will pay in a year before insurance covers everything. For 2024, that maximum cannot exceed $4,150 for individual coverage or $8,300 for family coverage. If your plan's out-of-pocket maximum is higher than these limits, it does not may have access to as a high-deductible plan, and you cannot use an HSA.

One important detail: your plan must cover preventive care before you meet the deductible. This means vaccines, cancer screenings, blood pressure checks, and similar preventive services are free. You only pay the deductible for other care. If your plan charges you a copay or deductible for preventive services, it is not a true HDHP.

The Dependent and Medicare Rules

If someone else claims you as a dependent on their tax return, you cannot open an HSA, even if you have your own HDHP. This rule catches many people in their mid-20s who are still claimed by a parent. You need to be independent on your taxes to be independent for HSA purposes.

Once you turn 65, you become ineligible for an HSA the moment you enroll in Medicare Part A or Part B. You can keep the money already in your HSA and use it for any medical expense, but you cannot make new contributions. If you delay Medicare enrollment past 65, you can keep contributing to an HSA until the month you actually enroll. This matters for people who work past 65 and want to keep building their HSA balance.

When Your Employer Offers an HDHP

If your employer offers health insurance, they may offer an HDHP as one of the plan options. This is the most common way people gain HSA access. Your employer will tell you which plans are high-deductible plans during open enrollment. If you choose that plan, you are automatically may be able to access to open an HSA through your employer's payroll system or through a bank or financial institution that your employer partners with.

Some employers contribute money to your HSA as part of your benefits package. This is information programs that goes into your account and counts toward your annual contribution limit. If your employer offers this, it reduces the amount you can contribute yourself. For example, if your employer puts in $500 and the individual limit for your year is $4,150, you can only add $3,650 of your own money.

If you leave that job, your HSA stays yours. You own the account and the money in it. You can move it to a different HSA provider, keep it where it is, or roll it into a new employer's HSA plan. The account does not disappear when you change jobs.

Opening an HSA on Your Own

If you buy your own health insurance through the marketplace or directly from an insurer, you can choose an HDHP. Once you are enrolled, you can open an HSA with a bank, credit union, or investment company. You do not have to use your insurer's HSA provider — you can shop around for better fees, investment options, or customer service.

When you open an HSA on your own, you will need to provide proof that you are enrolled in an HDHP. This usually means uploading a copy of your insurance card or a letter from your insurer showing your plan details. The HSA provider will verify that your plan meets the high-deductible requirements before they let you open the account.

You are responsible for tracking your own contributions and making sure you do not exceed the annual limit. For 2024, the limit is $4,150 for individual coverage or $8,550 for family coverage. If you contribute more than the limit, you will owe taxes and penalties on the excess. Your HSA provider may send you a form at tax time to help you track this, but the responsibility is yours.

Plans That Do Not may have access to

Some health plans look like they might be high-deductible but are not. Short-term health plans, limited-benefit plans, and accident-only plans do not count as HDHPs, even if they have high deductibles. If you are using one of these as a stopgap while you wait for other coverage, you cannot open an HSA during that time.

Health sharing ministries and discount health plans also do not may have access to. These are not insurance in the traditional sense, and the IRS does not treat them as coverage that would block you from an HSA. However, they also do not count as the HDHP you need to open one. You need actual health insurance.

If you are unsure whether your plan qualifies, ask your insurer directly. They can tell you whether your plan meets the IRS definition of a high-deductible plan. You can also check the plan documents — they should state the deductible and out-of-pocket maximum clearly.

What Happens If Your Situation Changes

If you lose your HDHP coverage, you can no longer contribute to your HSA that year. However, you keep the money already in the account and can use it for medical expenses for the rest of your life. If you regain HDHP coverage later, you can start contributing again.

If you become a dependent on someone else's tax return, you must stop contributing to your HSA when ready. Continuing to contribute after you lose may be able to access means you will owe taxes and a 20 percent penalty on the contributions you made while ineligible.

If you enroll in Medicare, your HSA may be able to access ends the month you enroll in Part A or Part B. You can use the balance for any medical expense, including Medicare premiums, deductibles, and copays. Many people use their HSA to cover Medicare costs in retirement, which is one reason building a large balance while you are working matters.

Frequently Asked Questions

Can I have an HSA if my spouse has a different health plan?

No. If your spouse has any health coverage, you cannot have an HSA, even if their plan is not a high-deductible plan. You both must either be on the same HDHP or have no coverage. The only exception is if your spouse has coverage that does not count as health insurance, like a discount plan or health sharing ministry.

What if I turn 65 but do not want Medicare yet?

You can delay Medicare enrollment and keep contributing to your HSA as long as you remain employed and enrolled in an HDHP. The moment you enroll in Medicare Part A or Part B, your HSA contributions stop. Many people delay Medicare specifically to keep building their HSA balance.

Can I open an HSA if I have a plan through my spouse's employer?

Only if that plan is a high-deductible plan and you are not covered by any other insurance. You cannot have your own separate HDHP while covered by your spouse's plan. You would need to be on your spouse's HDHP to open an HSA, and the account would be in your name.

Do I lose my HSA if I change jobs?

No. Your HSA is your personal account. When you leave a job, the account stays with you. You can keep it with the same provider, move it to a new bank or investment company, or roll it into your new employer's HSA plan. The money is always yours.

What if my employer's plan has a deductible of $1,500?

That plan does not meet the high-deductible threshold for 2024, so you cannot open an HSA while enrolled in it. The minimum deductible is $1,600 for individual coverage. If your employer offers other plan options, check whether any of them have a deductible of $1,600 or higher.