First, MasterCard will, as of July 2009, calculate the cross-border MIF according to a methodology which ensures that MIFs reflect the transactional benefits to merchants of accepting payment cards as opposed to cash.
Esiteks arvutab MasterCard alates juulist 2009 piiriülese mitmepoolse vahendustasu metoodika alusel, mille puhul mitmepoolses vahendustasus sisaldub kasu, mida jaemüüjad saavad, kui nad sooritavad tehingud maksekaartidega sularaha asemel.