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FICA Tax Calculator
x402
FICA Tax Calculator is a paid API for AI agents from x402helper.xyz, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-31).
Computes US FICA (Social Security and Medicare) tax obligations for a given wage amount, tax year, filing status, and employment type.
Price / call$0.004
Success—
StatusUnknown
How this service works
X402 micropayments server — AI agents pay USDC for OFAC screening, rates, and billing verification.
Output
Returns a JSON object with computed FICA tax breakdown including Social Security tax, Medicare tax, and (if self-employed) the self-employment tax equivalent, along with a success flag and the input parameters used.
Example use cases
Freelancer self-employment tax estimate
“I made $72,000 in net self-employment income this year. Can you calculate my self-employment FICA taxes for 2026?”
W-2 employee payroll tax check
“My annual salary is $145,000 and I file married jointly — what will my FICA taxes be for the 2026 tax year?”
Head of household payroll planning
“I'm filing as head of household with $58,000 in wages for 2026. How much should I expect to pay in Social Security and Medicare taxes?”
Technical details
Endpoint
GEThttps://x402helper.xyz/89e509/tax/fica?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, programmatic FICA tax computation without building your own tax-rate logic. It's particularly useful for financial planning agents, payroll tools, and tax estimation workflows where you need accurate Social Security and Medicare tax figures for a given income level, filing status, and tax year — including both W-2 employees and self-employed individuals.
Side effects
- Missing required 'wages' parameter returns validation error
- Negative wages value rejected with 400-level error
- Invalid filing_status enum value returns schema validation error
- Unsupported tax_year may return an error or fall back to default
- Network or payment failure prevents response delivery
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {},
"success": true
}
}Tags
x402
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