{"uid":"cap_wDhvmpldbShiveYIrlbN2","slug":"x402toll-bonus-commission-tax-withholding-calculator-f04aca67","name":"x402toll Bonus & Commission Tax Withholding Calculator","description":"Withholding and net take-home on a bonus/commission using the 2026 federal supplemental-wage rate (22% flat; 37% on cumulative supplemental wages over $1M), plus FICA and an optional state supplemental rate.","url":"https://x402toll.com/v1/tax/bonus","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"bonusAmount":{"type":"number","maximum":1000000000,"minimum":0},"ytdSupplementalWages":{"type":"number","default":0},"subjectToSocialSecurity":{"type":"boolean","default":true},"stateSupplementalRatePct":{"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_2hcX_jlBFvGBS-HbcYR26","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 federal supplemental-wage withholding (22% flat or 37% over $1M), FICA, and optional state tax on a bonus or commission to show net take-home pay.","exampleAgentPrompt":"I'm getting a $45,000 year-end bonus and I've already received $80,000 in supplemental wages this year — can you calculate my federal withholding, FICA, and net take-home, and also apply my state's 5% supplemental rate?","exampleUseCases":null,"resultDescription":"Returns a breakdown of federal supplemental-wage withholding (22% flat or 37% for wages over $1M cumulative), Social Security and Medicare (FICA) withholding, state supplemental withholding if a rate was provided, and the final net take-home dollar amount after all deductions.","failureModes":["bonusAmount exceeds maximum (1,000,000,000) — validation error","bonusAmount is negative — validation error","stateSupplementalRatePct outside valid percentage range — validation error","Missing required bonusAmount field — 400 Bad Request","Payment not included or insufficient — 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need a quick, rule-based calculation of bonus or commission withholding using the IRS supplemental wage flat rate (22% / 37%) rather than the aggregate method. Ideal for payroll estimation, offer-letter modeling, or financial planning when the employee's regular wages are unknown. Prefer this over a full W-4 aggregate calculator when you only have the bonus amount and YTD supplemental wages.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:42:16.793Z","isFirstParty":false}