Payroll & tax

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.

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.

Payment: x402 ($0.05 USDC on eip155:8453). Call unpaid to receive an HTTP 402 with requirements, then retry with the PAYMENT-SIGNATURE header. Method: federal = 22% up to $1M cumulative supplemental, 37% above; SS 6.2% (if subject) + Medicare 1.45% + optional state supplemental; net = bonus - all withholding

post/v1/tax/bonus

Request

  • Base URL: (relative, and it does not resolve against the document’s source URL)
  • URL: /v1/tax/bonus
  • Auth: none declared

Request body

bonusAmountnumber required
ytdSupplementalWagesnumber
stateSupplementalRatePctnumber
subjectToSocialSecurityboolean

Response

Verified result + provenance (formula, sources, reproducible SHA-256 hash).

Changes

No recorded changes to this operation across all 1 revision of this API.