Retirement

Federal tax cost of a Roth conversion in one year: the extra income tax from stacking the converted amount on top of your other taxable income, with the marginal rate before and after.

Federal tax cost of a Roth conversion in one year: the extra income tax from stacking the converted amount on top of your other taxable income, with the marginal rate before and after.

Payment: x402 ($0.10 USDC on eip155:8453). Call unpaid to receive an HTTP 402 with requirements, then retry with the PAYMENT-SIGNATURE header. Method: tax = federalTax(otherTaxable + conversion) - federalTax(otherTaxable); effective conversion rate = tax / conversion

post/v1/retirement/roth-conversion

Request

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

Request body

conversionAmountnumber required
filingStatus'single' | 'mfj'
otherTaxableIncomenumber

Response

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

Changes

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