Capital One business cards have always reported to an individuals credit report. According to a conversation Help Me Build Credit had with a Capital One executive the Capital One Spark Cash card will no longer report to personal reports, but the Capital One Spark Miles will continue to report. In addition if the Spark Cash is not in good standing then it will report to your personal credit report. The change went into effect yesterday and it’s unclear if it will only affecting new applications or if existing reported cards will be removed as well (new applications only). The reason why this all matters is for the purposes of Chases 5/24 rule.
Update: Reports are that the Spark Cash Select does report.