You can set up an HSA if your health plan qualifies and you meet three basic requirements

To set up a Health Savings Account, you need three things: a high-deductible health plan (HDHP) from your employer or the individual market, no other health coverage that would disqualify you, and U.S. citizenship or permanent resident status. The setup itself takes about 15 minutes once you have chosen a financial institution. Most people open an HSA through their employer's payroll system, but you can also open one independently at a bank or investment firm if you buy your own insurance.

The timing matters. You can open an HSA anytime during the year you enroll in an HDHP, and you can also open one retroactively during tax filing season (until April 15 of the following year) if you had an HDHP but did not set one up when you enrolled. If you miss that window, you will have to wait until your next enrollment period or until your plan changes.

Key Takeaways

  • Your health plan must be a high-deductible plan (HDHP) — plans with lower deductibles do not may have access to, and you cannot have an HSA alongside them.
  • You cannot have other health coverage like Medicare, Medicaid, TRICARE, or a spouse's non-HDHP plan at the same time you contribute to an HSA.
  • If your employer offers an HSA through payroll, that is usually the fastest route; if not, you can open one independently at a bank or brokerage.
  • You can open an HSA retroactively during tax season if you had an HDHP but did not set one up during enrollment, but only until April 15.

Verify your health plan meets the HDHP definition

Your plan must meet specific deductible and out-of-pocket limits set by the IRS each year. For 2024, an HDHP for individual coverage has a minimum deductible of $1,600 and a maximum out-of-pocket limit of $4,150. For family coverage, the minimum deductible is $3,200 and the maximum out-of-pocket limit is $8,300. These numbers change annually, so check your plan documents or your insurer's website to confirm your plan qualifies.

Some plans that look like they might may have access to do not. Plans with copays for primary care visits or preventive services before you meet your deductible are not HDHPs. Plans that cap out-of-pocket costs below the IRS limits are not HDHPs. If you are unsure, call your insurer and ask directly: "Is this plan an IRS-may have access to high-deductible health plan for HSA purposes?" They will tell you yes or no.

Check that you have no disqualifying coverage

You cannot contribute to an HSA if you are covered by Medicare, Medicaid, TRICARE, the Veterans Administration, or a health plan from your spouse that is not an HDHP. You also cannot have coverage through a parent's plan if you are under 26. Even if you have only one month of disqualifying coverage in a calendar year, it affects your HSA contribution for that entire year.

The exception is coverage for specific services like dental, vision, or workers' compensation — those do not disqualify you. Neither does a limited-purpose FSA (Flexible Spending Account) that covers only dental and vision, or an HSA-compatible FSA that your employer offers alongside the HSA. If you have a regular FSA that covers medical expenses, you cannot have an HSA at the same time.

Open an HSA through your employer if one is offered

If your employer offers an HSA, you will usually enroll during open enrollment or when you first become may be able to access for the HDHP. Your employer will direct you to a specific financial institution — often a bank, credit union, or investment firm they have partnered with. You will provide your name, Social Security number, and banking information. Contributions are deducted from your paycheck before taxes, which reduces your taxable income automatically.

Ask your employer's benefits team or HR department whether the HSA is a custodial account (the employer holds it) or whether you own it directly. If your employer holds it, confirm what happens to the account if you leave the job — most allow you to keep the account and continue contributing if you still have an HDHP, but some require you to transfer it to your own HSA elsewhere. Get this in writing before you enroll.

Open an HSA independently if you do not have employer coverage

If you buy your own HDHP on the individual market or your employer does not offer an HSA, you can open one at a bank, credit union, or investment firm. Common providers include Fidelity, Lively, HealthEquity, and most major banks. Search for "HSA provider" and compare their fees, investment options, and minimum balances. Some charge monthly maintenance fees ($2 to $5), some charge per transaction, and some are free.

To open an account, you will need your Social Security number, proof of HDHP enrollment (your plan documents or a letter from your insurer), and a way to fund it — either a bank account for transfers or a debit card. The process takes 10 to 20 minutes online. Once your account is open, you can contribute up to the annual IRS limit ($4,150 for individual coverage in 2024, $8,300 for family coverage). You will report your contributions on your tax return (Form 8889) to get the tax deduction.

Understand contribution timing and limits

You can contribute to an HSA for any month in which you are covered by an HDHP and have no disqualifying coverage. If you enroll in an HDHP mid-year, you can contribute a prorated amount for the months you are covered, or you can contribute the full annual amount if you stay enrolled through December 31. The IRS allows a "testing period" rule: if you enroll in an HDHP on December 1, you can contribute the full annual amount as long as you stay enrolled through May 31 of the following year.

Contributions must be made by April 15 of the year after the tax year you are contributing for. If you contribute $2,000 toward your 2024 HSA, you have until April 15, 2025 to make that deposit. If you exceed the annual limit, you will owe taxes plus a 6% penalty on the excess amount, so track your contributions carefully if you have both an employer HSA and make independent contributions.

Complete any required employer paperwork

If you are enrolling through your employer, you may need to sign an HSA agreement or consent form. This form confirms you meet the requirements and understand the rules. Keep a copy for your records. Your employer will report your contributions to the IRS on Form 5498-SA, which you will receive by May 31. You will use this form when you file your taxes.

If you are opening an HSA independently, the financial institution will send you a Form 5498-SA as well. You do not need to do anything with it except keep it with your tax records. When you file your return, you will report your HSA contributions on Form 8889 (Health Savings Accounts) to claim the tax deduction.

Frequently Asked Questions

What if I enroll in an HDHP mid-year — can I still open an HSA?

Yes. You can open an HSA anytime during the year you enroll in an HDHP. You can contribute a prorated amount for the months you are covered, or the full annual amount if you meet the testing period rule (staying enrolled through May 31 of the following year). You can also open one retroactively during tax season if you had an HDHP but did not set one up when you enrolled.

Can I have an HSA if my spouse has a non-HDHP plan?

No. If your spouse has any health coverage that is not an HDHP, you cannot contribute to an HSA, even if you are covered by your own HDHP. The only exception is if you have family coverage under an HDHP and your spouse is not covered by any other plan. If your spouse has their own HDHP, you can each have your own HSA.

Do I lose my HSA if I leave my job?

No. Your HSA belongs to you, not your employer. When you leave, you can keep the account open and continue using the money for medical expenses. If your new job offers an HSA, you can keep both accounts or transfer the balance to the new one. If you no longer have an HDHP, you can no longer contribute, but you can still withdraw money for medical expenses without penalty.

What if I have a regular FSA — can I also have an HSA?

No. A regular FSA that covers medical expenses disqualifies you from contributing to an HSA. However, a limited-purpose FSA (covering only dental and vision) or an HSA-compatible FSA does not. Ask your employer whether their FSA is HSA-compatible before you enroll.

How do I report my HSA contributions on my taxes?

If your employer deducted contributions from your paycheck, they are already reported on your W-2 and you do not need to do anything. If you made contributions independently, you report them on Form 8889 (Health Savings Accounts) when you file your return. You will receive a Form 5498-SA from your HSA provider showing the total contributions made to your account during the year.