Federal filing deadlines, IRC 7503-rolled

get/v1/deadlines

Request

  • Base URL: https://api.arcandledger.com
  • URL: https://api.arcandledger.com/v1/deadlines
  • Auth: none declared

Query parameters

yearinteger
Example:2026

Tax-year vintage; defaults to the latest complete vintage.

Response

Statutory vs observed dates per form family

dataobject required
disclaimerstring required

Changes

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