An HSA balance can grow when contributions and earnings exceed withdrawals and fees. It can also stay flat or decline when healthcare spending, fees, or investment losses exceed new money going in.
The examples below are hypothetical. They illustrate how behavior and assumptions affect the balance; they are not forecasts or recommendations.
At a glance
- Contributions, withdrawals, returns, and fees all affect the ending balance.
- Keep near-term healthcare money accessible; investing is optional and can result in loss.
- Compare a positive-return illustration with flat and negative outcomes before making a decision.
Three ways a consumer might use an HSA
Spend now
Contribute enough to cover current qualified expenses and take distributions as bills occur. This can provide a current federal tax benefit for eligible contributions without requiring the consumer to preserve money for the future.
Save some
Use part of the account for current expenses and retain the rest in cash or other available options. This creates a future healthcare reserve while still helping with today’s bills.
Invest some
Keep enough accessible for expected expenses and invest a portion offered through the account. This introduces the possibility of growth and loss, as well as investment fees and market volatility.
A transparent 10-year hypothetical
Assumptions:
- Starting balance: $0.
- Annual contribution: $3,000, deposited evenly during each year.
- Period: 10 years.
- Spend-now qualified withdrawals: $3,000 per year.
- Save-some qualified withdrawals: $1,500 per year.
- Invest-some qualified withdrawals: $500 per year.
- Positive investment scenario: 5% annual return after underlying fund expenses, before any separate account fee.
- Flat scenario: 0% return.
- Loss illustration: –10% in the first year followed by 0% for the remaining years.
- Simplification: Contributions and withdrawals are modeled annually; taxes and inflation are not included.
Approximate results before any separate account fees:
| Behavior | Contributions | Withdrawals | Return assumption | Approximate ending balance |
|---|---|---|---|---|
| Spend now | $30,000 | $30,000 | 0% | $0 |
| Save some | $30,000 | $15,000 | 0% | $15,000 |
| Invest some (flat) | $30,000 | $5,000 | 0% | $25,000 |
| Invest some (positive) | $30,000 | $5,000 | 5% annually | About $31,400 |
| Invest some (loss illustration) | $30,000 | $5,000 | –10% first year, then 0% | About $24,750 |
These results are deliberately simplified. Timing of deposits, withdrawals, losses, and fees would change the numbers. The positive scenario is not more likely simply because it appears in the table.
Fees can change the result
Account maintenance fees, investment fees, fund expenses, and cash requirements reduce the amount available. A $3 monthly fee would total $360 over 10 years before considering lost earnings.
Compare provider terms before opening or investing. Investment availability and minimum cash thresholds vary.
Growth is not the only measure of value
The spend-now consumer ends with no balance in this example, but may still have received meaningful value by using eligible contributions and tax-free qualified distributions for healthcare.
Likewise, a larger ending balance does not prove that investing was the right decision. The consumer had to pay current bills from other funds and accept market risk.
Questions before investing HSA money
- Do I have enough accessible cash for near-term qualified expenses?
- Could I pay a high deductible or unexpected bill without selling during a market decline?
- Do I have emergency savings outside the HSA?
- What fees and cash thresholds apply?
- What is my time horizon?
- Am I comfortable with the possibility of loss?
What to do next
Primary action: Estimate my savings and contribution options.
Alternative: Build a monthly contribution plan.
This article provides general educational information, not legal, tax, investment, or financial advice. HSA rules depend on individual circumstances and may change. These hypothetical results are not a forecast and do not guarantee performance. Investments can lose value.
