HSA 101: How to Open an HSA (Step-by-Step Guide)
- Saving Wiser
- Apr 24
- 3 min read
Once you’ve confirmed you have a qualifying HDHP, it’s time to open your HSA.
If you haven’t verified your eligibility yet, read our guide here first.
The good news — this part is simple. The more important decision is where you open it, because your provider impacts fees, investment options, and long-term growth.
Let’s walk through it.
Two Ways to Open an HSA
There are two valid paths. Both give you the same tax advantages.
Option A — Through Your Employer
If your employer offers an HSA, this is usually the easiest starting point.
How it works: You enroll during open enrollment (or when eligible), and your employer sets up the account. Contributions come directly from your paycheck before taxes.
The key advantage — payroll tax savings: Contributions made through payroll avoid:
Federal income tax
FICA taxes (Social Security + Medicare)
That FICA savings only applies through payroll — not personal contributions.
Example: On a $4,400 contribution, FICA savings alone can be ~$300+ depending on your situation.
Employer contributions: Many employers add money to your HSA. This is essentially free money — always factor this in.
The possible downsides: Employer HSAs could have:
Higher fees
Limited investment options
Clunky platforms
You’re not stuck with them — more on that below.
Option B — Open Your Own HSA
You can open an HSA independently through providers like Fidelity or Lively — even if your employer offers one.
How it works: Open an account online (usually ~10 minutes), and contribute directly from your bank account.
The advantages:
Choose the best provider (low fees, better investing)
Full control over your account
No employer limitations
The tradeoff: You miss the FICA tax savings.
You still get the federal tax deduction — claimed on Form 8889 when filing taxes.
You Can Do Both
This is often overlooked, but you can have multiple accounts. This is more important when you are using your HSA as a long-term investment.
You can:
Use your employer HSA for payroll contributions
Maintain your own HSA for investing
Just remember — all contributions combined must stay within the annual limit:
$4,400 (individual)
$8,750 (family) — 2026 limits
What Actually Matters When Choosing an HSA
Not all HSAs are equal. Focus on these:
Fees
Monthly fees, investment fees, transaction fees
Zero-fee options exist — don’t settle
Investment options
Look for index funds, ETFs, and low-cost investing
Investment minimums
Some require $1,000+ cash before investing
That idle cash slows growth (if there isn't interest on cash balances)
Ease of reimbursement
Simple receipt uploads matter long term
Cash interest rate
Varies more than most people expect
Our Recommended Accounts
No fees
No minimums
Full investing flexibility
Strong user experience
No fees
Simple interface
Investing options
What If Your Employer HSA Isn’t Great?
This is very common.
The solution: transfer your balance.
You can move funds to a better HSA via a trustee-to-trustee transfer:
No taxes
Doesn’t count toward contribution limits
Process:
Open a new HSA
Request transfer form
Submit request
Funds move (2–3 weeks)
You can do this multiple times per year — many people transfer once or twice annually.
What You Need to Open an HSA
Here are the basic information you'll need to open an account:
Social Security number
Government ID
Bank account (for contributions)
Proof of HDHP coverage
Most accounts take under 10 minutes to open.
The Quick Summary
Two ways to open: employer or independent
Payroll contributions save FICA taxes
Employer contributions = free money
You can open your own HSA anytime
Fees and investment options matter more than most realize
Fidelity and Lively are strong options
You can transfer out of a bad HSA at any time
Stay within annual contribution limits (read more about the limits here)
Thanks for reading, The Saving Wiser Team
Disclaimer: Saving Wiser is not a doctor, tax professional, or financial advisor. This content is for informational purposes only. HSA eligibility and rules vary by plan—always verify with your HSA administrator and consult your doctor and a qualified tax or financial professional for your specific situation. Some links on this site may be affiliate links, which means we may earn a commission at no additional cost to you.