{"uid":"cap_wIo8HzjAAPXeOvjgyTgyS","slug":"business-entity-tax-comparison-sole-prop-vs-s-corp-vs-c-corp-2026-f0f2979d","name":"Business Entity Tax Comparison (Sole Prop vs S-Corp vs C-Corp) 2026","description":"Total 2026 federal tax as a sole proprietor / LLC vs S-corp vs C-corp for the same profit — SE tax vs FICA vs 21% corporate tax with qualified-dividend double taxation — ranked to the lowest.","url":"https://x402toll.com/v1/business/entity-compare","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"ownerSalary":{"type":"number","default":0},"filingStatus":{"enum":["single","mfj"],"type":"string","default":"single"},"businessProfit":{"type":"number","maximum":1000000000,"minimum":0}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_r4HNt938gS4FWgZh974BD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates and ranks total 2026 federal tax burden across sole proprietor/LLC, S-corp, and C-corp structures for the same business profit, including SE tax, FICA, and corporate double taxation.","exampleAgentPrompt":"My business will make $180,000 in profit this year and I'd pay myself a $60,000 salary — can you compare the total 2026 federal taxes I'd owe as a sole proprietor, S-corp, and C-corp, filing as single, and tell me which structure is cheapest?","exampleUseCases":null,"resultDescription":"Returns a ranked list of business entity types (sole proprietor/LLC, S-corp, C-corp) with their total estimated 2026 federal tax liability for the given profit, breaking down self-employment tax, FICA, corporate income tax, and qualified dividend double taxation for C-corps, sorted from lowest to highest tax burden.","failureModes":["businessProfit below 0 or above $1,000,000,000 returns validation error","Invalid filingStatus value (not 'single' or 'mfj') returns enum error","Missing required businessProfit field returns 400 bad request","Network or payment failure returns 402 or 5xx error","Salary exceeding profit may produce edge-case results"],"whenToPreferThis":"Use this endpoint when a user needs to compare federal tax liability across all three major US business entity structures for the same profit level in 2026, especially when evaluating whether to elect S-corp status or incorporate as a C-corp. Prefer this over a general tax calculator when the specific question is entity structure optimization rather than a single-entity tax estimate.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:00:59.143Z","isFirstParty":false}