Money guide · Retirement accounts and planning
HSA vs. FSA: compare healthcare savings rules
Compare health savings accounts and health flexible spending arrangements by eligibility, unused funds, ownership, and planning for expenses.
How it works
HSA contributions require meeting applicable eligibility rules, including qualifying health coverage and restrictions on other coverage. HSA balances generally carry forward. A health FSA is an employer arrangement with plan-specific deadlines and possible limited carryover or grace-period provisions. A general-purpose health FSA can affect HSA eligibility. Current IRS and plan rules determine the details.
A worked example
Suppose you reserve $1,500 for expected eligible expenses and actually use $1,100. The remaining $400 in an HSA generally stays in the account. For a health FSA, what happens depends on the plan’s permitted features and deadlines. This example intentionally avoids applying a particular year’s carryover limit to every employer arrangement.
What to compare
Compare your health plan eligibility, likely expenses, employer contributions, account fees, deadlines, and reimbursement procedures. Keep documentation of qualified expenses. Account type is only one part of choosing health coverage; premiums, deductibles, networks, and your expected healthcare needs also matter. State income-tax treatment may differ from federal treatment.
A common mistake to avoid
Do not assume every high-deductible plan makes you HSA-eligible or every unused FSA dollar remains available indefinitely. Avoid treating an HSA as an ordinary spending account without checking distribution rules. For nonmedical uses, tax consequences can depend on age and circumstances, so verify before withdrawing.
Can I contribute to an HSA while covered by an FSA?
A general-purpose health FSA can disqualify HSA contributions. Certain limited-purpose or other qualifying arrangements can differ; check IRS rules and the actual plan.
Sources and further reading
Connect this to inflation
Inflation changes the spending power of money over time. Read the related inflation explainer, or adjust a retirement goal for inflation using your own assumptions.