When the Prime Rate moves, savers start checking what their money is earning. One account people often forget is the Health Savings Account (HSA). Here is how HSA interest rates work and how to get more from yours.

What Is an HSA?

A Health Savings Account lets people with a high-deductible health plan (HDHP) set money aside for medical costs. It has three tax advantages:

1. Contributions are tax-deductible or made pre-tax.

2. Growth, including interest, is tax-free.

3. Withdrawals for qualified medical expenses are tax-free.

For 2026, the IRS contribution limits are $4,400 for self-only coverage and $8,750 for family coverage.

Do HSAs Earn Interest?

Yes. The cash in an HSA usually sits in an interest-bearing deposit account, much like a savings account. The rate is set by the HSA provider, not by the government.

The catch is that many providers pay very low rates on HSA cash, often well below what a high-yield savings account or CD pays. Some use tiered rates, so higher balances earn a little more.

Does the Prime Rate Affect HSA Interest Rates?

Indirectly. When the Federal Reserve raises its target rate and the Prime Rate follows, banks earn more on deposits. Some HSA providers pass part of that on. Many don’t, or they move slowly.

So a Prime Rate increase does not guarantee that your HSA rate rises. It is worth checking your provider’s current rate after each Fed move.

How to Earn More in Your HSA

* Compare providers. You can roll your HSA to a provider with a better rate or lower fees.

* Invest the balance. Most HSAs let you invest money above a set cash minimum in mutual funds or ETFs. That growth is tax-free too.

* Watch the fees. A monthly fee can erase low interest earnings.

* Keep a cash cushion. Hold enough cash for your deductible, then invest the rest for the long term.

Start With the Right Health Plan

An HSA only works with an HSA-eligible high-deductible health plan. Choosing that plan carefully matters as much as the interest rate. Brokers such as Custom Health Plans can help you compare HSA-eligible plans so the account and the coverage work together.

Frequently Asked Questions

What is a good HSA interest rate?

A good rate is one that is close to what high-yield savings accounts pay. Many HSA cash accounts pay far less, so compare before you settle.

Is HSA interest taxable?

No. Interest and investment growth in an HSA are tax-free as long as withdrawals pay for qualified medical expenses.

Is it better to invest my HSA or keep it in cash?

If you don’t need the money soon, investing usually offers more growth than cash. Keep enough cash to cover near-term medical costs.

Can I move my HSA to a provider with a higher rate?

Yes. You can transfer or roll over your HSA to another provider without paying tax.