The SBA affiliation rules are not always intuitive, and perhaps no SBA affiliation rule is as little understood as the so-called “identity of interest” rule under 13 C.F.R. 121.103(f).
Identity of interest affiliation can arise in several ways, including when close family members also have business ties. As demonstrated in a recent SBA Office of Hearings and Appeals decision, a close family relationship between two business owners, plus significant business ties, may cause affiliation between the businesses.