We report the facile and efficient synthesis of common electrophilic haloboranes via a protonolysis reaction between Piers’ borane, HB(C6F5)2, and H−X (X=Cl, Br). This route benefits from fast reaction times, easy setup, and minimal workup to yield the analytically pure etherates, (C6F5)2BCl(OEt2) (1) and (C6F5)2BBr(OEt2) (2), as well as the ether-free tri-coordinate species, (C6F5)2BBr (3).