HSA vs FSA Comparison Calculator
Annual Contributions
2024 limit: $4,150 (individual), $8,300 (family)
2024 limit: $3,200
Expenses & Tax Rate
Federal + State + FICA (typically 25-35%)
How to Use This Calculator
Compare Health Savings Account (HSA) and Flexible Spending Account (FSA) to determine which tax-advantaged health account is better for your situation.
HSA Eligibility Requirements:
- Must have a High-Deductible Health Plan (HDHP)
- 2024 HDHP minimum deductible: $1,600 (individual), $3,200 (family)
- Cannot be enrolled in Medicare
- Cannot be claimed as a dependent on someone else's tax return
FSA Eligibility:
- Must be offered through your employer
- Can be used with any health insurance plan
- Cannot have both FSA and HSA (except Limited Purpose FSA for dental/vision)
Note: HSA is generally better for long-term savings and flexibility, while FSA is better if you have predictable medical expenses and need immediate access to funds.
Use this hsa vs fsa comparison calculator to compute healthcare planning results from your inputs.
Formula
FSA tax savings = Medical expenses × Tax bracket (max $3,050 contribution) HSA tax savings = Medical expenses × Tax bracket (max $4,150 individual, $8,300 family) HSA investment growth = Unused funds × (1 + Return rate)^years FSA lost funds = max(0, Contribution - Medical expenses - $610) Total HSA advantage = HSA tax savings + Investment growth Total FSA advantage = FSA tax savings - Lost funds