{"uid":"cap_Krd2hi1D-_h5KNF4iqMw_","slug":"us-federal-income-tax-estimator-f4e03c16","name":"US Federal Income Tax Estimator","description":"US federal income tax estimate for a tax year: taxable income, tax, marginal and effective rate, per-bracket breakdown, with an optional state estimate. Pure computation over your inputs, not tax advice.","url":"https://api.agentstools.dev/tax/income","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":["gross_income"],"properties":{"state":{"type":"string","description":"Optional two-letter state code for a state estimate"},"tax_year":{"type":"integer","description":"Tax year, default 2026"},"deductions":{"type":"number","description":"Total deductions; omit to use the standard deduction"},"gross_income":{"type":"number","description":"Total gross income before deductions (>= 0)"},"filing_status":{"enum":["single","married_jointly","married_separately","head_of_household"],"type":"string","description":"Filing status, default single"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_xCx8aO_OygntmG1KhNghP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Estimates US federal (and optionally state) income tax for a given year, returning taxable income, total tax, marginal and effective rates, and a per-bracket breakdown.","exampleAgentPrompt":"What's my estimated federal income tax for 2025 if I made $120,000 as a single filer — and can you also include a California state estimate?","exampleUseCases":null,"resultDescription":"Returns taxable income after deductions, total federal tax owed, marginal and effective tax rates, a line-by-line breakdown of tax owed per bracket, and optionally a state-level tax estimate for the specified state.","failureModes":["Missing required gross_income parameter returns a 400 error","Invalid filing_status enum value returns a 400 validation error","Invalid or unrecognized state code may return an error or omit state estimate","Negative gross_income value rejected with 400 error","Unsupported tax_year may return a 400 or fall back to default"],"whenToPreferThis":"Use this endpoint when you need a fast, pure-computation estimate of US federal income tax liability with bracket-level detail and an optional state estimate, without needing to file or submit anything. Prefer this over generic tax software APIs when you want a lightweight, per-call calculation suitable for embedding in financial planning workflows or chatbot responses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:11:44.689Z","isFirstParty":false}