Retirement

401(k) contribution vs the 2026 limits (incl. age 50+ and 60–63 catch-ups) plus the employer match, capped at the §415(c) total.

401(k) contribution vs the 2026 limits (incl. age 50+ and 60–63 catch-ups) plus the employer match, capped at the §415(c) total.

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: employeeLimit = $24,500 + catch-up (age 50+ $8,000; age 60–63 $11,250, replaces not stacks); match = matchRatemin(contribution, salarymatchLimit); total capped at $72,000

post/v1/retirement/401k

Request

  • Base URL: (relative, and it does not resolve against the document’s source URL)
  • URL: /v1/retirement/401k
  • Auth: none declared

Request body

salarynumber required
agenumber
contributionPctnumber
contributionAmountnumber
employerMatchPctnumber
employerMatchLimitPctnumber

Response

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

Changes

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