`doc_date` (document date)
doc_date (document date)
doc_date is the document’s own date. Bookkeeping uses document date for period selection and searching, because using upload time as a proxy becomes unreliable when documents are received or scanned late.
An explicit document date helps evidence trails remain filterable by month and fiscal period without opening files.
Example values: 2026-02-05, 2026-01-31.