{"uid":"cap_MJ7A2POAs4gCuzbRCA2hc","slug":"fica-self-employment-tax-estimator-4da157c4","name":"FICA & Self-Employment Tax Estimator","description":"US payroll tax estimate: Social Security and Medicare on wages, or self-employment tax, including the additional Medicare surtax. Pure computation over your inputs, not tax advice.","url":"https://payai.agentstools.dev/tax/fica","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["wages"],"properties":{"wages":{"type":"number","description":"Annual wages or net self-employment earnings (>= 0)"},"tax_year":{"type":"integer","description":"Tax year, default 2026"},"filing_status":{"enum":["single","married_jointly","married_separately","head_of_household"],"type":"string","description":"Filing status, default single"},"self_employed":{"type":"boolean","description":"True computes self-employment tax, default false"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_a0Bi_T9oaE_Bf8ux42YJ8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes US FICA payroll taxes (Social Security, Medicare) and self-employment tax on wages or net self-employment earnings, including the 0.9% additional Medicare surtax.","exampleAgentPrompt":"I made $95,000 in freelance income this year — can you estimate my self-employment tax for 2026, assuming I'm filing as single?","exampleUseCases":[{"title":"Freelancer annual tax planning","prompt":"I earned $85,000 in net self-employment income this year. Can you calculate my self-employment tax for 2026 as a single filer so I know how much to set aside?"},{"title":"W-2 employee FICA estimate","prompt":"My annual salary is $160,000 and I'm a regular W-2 employee filing married jointly for 2026 — what will I owe in Social Security and Medicare taxes?"},{"title":"High earner Medicare surtax check","prompt":"I'm earning $250,000 in wages for 2026, filing as single. Can you estimate my total FICA taxes including whether I'll hit the additional Medicare surtax?"}],"resultDescription":"Returns a breakdown of US FICA taxes owed: Social Security tax, Medicare tax, and (if applicable) the 0.9% additional Medicare surtax, plus a total — computed from the wages or net self-employment earnings provided, adjusted for the requested tax year and filing status.","failureModes":["Missing required 'wages' parameter returns a validation error","Negative wage value rejected with a validation error (wages must be >= 0)","Invalid filing_status enum value returns a bad request error","Invalid or unsupported tax_year may return an error or fall back to default","Non-numeric wages value causes a schema validation failure"],"whenToPreferThis":"Use this endpoint when you need a fast, pure-computation FICA or self-employment tax estimate without involving a full tax-filing service or advisor. Ideal for payroll tooling, personal finance agents, freelancer income planning, or any workflow that needs a quick numeric breakdown of Social Security and Medicare tax obligations from wages or self-employment earnings.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:53:36.970Z","isFirstParty":false}