{"uid":"cap_4-jszqrPsZuCCNRJWBaEE","slug":"x402toll-self-employment-tax-calculator-2ff67b0a","name":"x402toll Self-Employment Tax Calculator","description":"Self-employment (SE) tax on Schedule C net profit — Social Security to the 2026 $184,500 wage base, Medicare, Additional Medicare, and the deductible half.","url":"https://x402toll.com/v1/tax/self-employment","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"netProfit":{"type":"number"},"filingStatus":{"enum":["single","mfj","hoh","mfs"],"type":"string","default":"single"},"w2SocialSecurityWages":{"type":"number","default":0}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_84e4qNfzUMZGjaEqtfgUR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates US self-employment tax on Schedule C net profit, including Social Security (up to 2026 $184,500 wage base), Medicare, Additional Medicare, and the deductible half","exampleAgentPrompt":"What's my self-employment tax on $95,000 net profit filing as single with no W-2 wages this year — break down Social Security, Medicare, Additional Medicare, and how much I can deduct?","exampleUseCases":null,"resultDescription":"Returns a breakdown of self-employment tax components: Social Security tax (capped at 2026 $184,500 wage base net of any W-2 wages), Medicare tax (2.9% flat), Additional Medicare surtax (0.9% above threshold), total SE tax, and the deductible half of SE tax for Form 1040 above-the-line deduction","failureModes":["Missing or invalid netProfit field returns validation error","Invalid filingStatus enum value rejected","Negative netProfit may return zero SE tax or error depending on implementation","Very large netProfit may trigger edge-case rounding differences","w2SocialSecurityWages exceeding wage base correctly zeroes out SS portion"],"whenToPreferThis":"Use this endpoint when you need a precise, 2026-current self-employment tax breakdown for a Schedule C filer, especially when the user has W-2 wages that offset the Social Security wage base or needs the deductible half for AGI calculation. Prefer over generic tax APIs when SE-specific detail (wage base offset, deductible half) is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:47:01.221Z","isFirstParty":false}