What is in the index

Everything on this site derives from public IRS bulk datasets. Nothing is proprietary, nothing is inferred silently, and the whole pipeline is open source.

Dataset	Published	Source
bmf	2026-08-10	https://www.irs.gov/pub/irs-soi/eo1.csv
pub78	2026-08-11	https://apps.irs.gov/pub/epostcard/data-download-pub78.zip
revocation	2026-08-11	https://apps.irs.gov/pub/epostcard/data-download-revocation.zip
epostcard	2026-08-31	https://apps.irs.gov/pub/epostcard/data-download-epostcard.zip

This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.