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Money · HSA optimiser
Health Savings Account Optimiser
HSA vs FSA: which account is better for your situation? Enter your health plan type, expected medical spend, and contribution level.
Instant result
Plain-English why
Copyable takeaway
What this means
This tool assesses HSA vs FSA suitability based on HDHP eligibility, expected spend, and the carryover rules that make one account significantly more valuable than the other.
Formula used
Tax saving = annual contribution × marginal tax rate. HSA vs FSA suitability scored by HDHP eligibility, carryover need, and spend predictability.
Worked example
A single person on an HDHP earning $75,000 with $2,000 expected medical spend contributes the $4,150 HSA max: tax saving of approximately $1,000 and unspent funds carry over indefinitely.
Common questions
What is the difference between an HSA and FSA?
An HSA (Health Savings Account) requires a High Deductible Health Plan but funds roll over year to year and can grow tax-free as investments. An FSA (Flexible Spending Account) works with any plan but is largely use-it-or-lose-it each year.
Can I have both an HSA and FSA?
Generally not simultaneously — having an HSA means you cannot contribute to a standard FSA. A Limited Purpose FSA for dental and vision only is compatible with an HSA.
Plain-English summary
Enter your situation to find out which health savings account to prioritise and the tax saving from doing it correctly.
This section translates the result into a short, direct takeaway rather than leaving the page at a bare number.
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