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HSA/FSA 2026 Contribution Limits & Tax Savings Calculator
x402
HSA/FSA 2026 Contribution Limits & Tax Savings Calculator is a paid API for AI agents from x402toll.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Returns 2026 HSA or health-FSA contribution limits (including catch-up and HDHP bounds) and estimates income-tax savings based on marginal rate and contribution amount
Price / call$0.05
Success—
StatusUnknown
How this service works
2026 HSA or health-FSA contribution limit and income-tax savings — HSA self/family limits + age-55 catch-up + HDHP deductible/OOP bounds, or the FSA salary-reduction limit + carryover.
Output
Returns the applicable 2026 HSA or FSA contribution limit, age-55 catch-up amount (if HSA and eligible), HDHP minimum deductible and out-of-pocket maximum bounds (if HSA), FSA carryover limit (if FSA), and an estimated dollar amount of income-tax savings based on the provided marginal rate and contribution amount.
Example use cases
Example prompt
“I'm 57, have family HSA coverage, and my marginal tax rate is 24% — if I contribute the full 2026 HSA limit including the catch-up, how much will I save in taxes?”
Technical details
Endpoint
POSThttps://x402toll.com/v1/retirement/hsa-fsaWhen to prefer
Use this endpoint when you need IRS-verified 2026 HSA or FSA contribution limits, HDHP threshold figures, or a quick tax-savings estimate for a given contribution amount and marginal rate. Prefer this over a generic tax calculator when the specific question involves health savings account limits, catch-up contributions for age 55+, or FSA carryover rules.
Side effects
- Invalid accountType enum value — must be 'hsa' or 'fsa'
- Invalid coverage enum value — must be 'self' or 'family' (only relevant for HSA)
- marginalRatePct outside valid range (0-100) returns error or unexpected result
- contributionAmount exceeding IRS limit may return a warning or capped value
- Network timeout or payment failure results in no response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| age | number | |
| coverage | string | |
| accountType | string | |
| marginalRatePct | number | |
| contributionAmount | number |
Tags
x402
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