I working at HMRC on a collaboration project with yourselves at Companies House to consume CH accounts data for HMRC tax inspectors.
There are approximately 15% of CH accounts records that are not submitted electronically (XBRL). We are planning to consume all new incoming returns matching this criteria via the streaming APIs /filings endpoint, but we also require the last 6 years worth of data.
So can I request a data dump for all category "accounts' submissions for types AA, AAMD, AA01 and AA02?
Please contact me if you have any further questions.