Sec. 28. (a) The commission is not required to pay any taxes or assessments upon any of the following:
(1) A project of the commission.
(2) A facility, a betterment, or an improvement within a project.
(3) Property acquired or used by the commission under this chapter or under IC 14-6-29.5 (before its repeal).
(4) The income or revenue from the property.
(b) The:
(1) bonds issued under this chapter or under IC 14-6-29.5 (before its repeal);
(2) interest on the bonds;
(3) proceeds received by a holder from the sale of the bonds to the extent of the holder's cost of acquisition;
(4) proceeds received upon redemption before maturity or proceeds received at maturity; and
(5) receipt of interest and proceeds;
are exempt from taxation in Indiana for all purposes except the financial institutions tax imposed under IC 6-5.5.