Investment Vouchers (IVs): What Are They & How Do I Get Them?
Investment Vouchers (IVs) are another type of currency in the game that can only be used to make purchases in the IV Shopping catalog. They cannot be used to make purchases from other players or transferred to other players in any way.
IVs can be purchased for HBs by clicking "Buy IV's" on the main Voucher Exchange page. It costs 12,500HBs to purchase one IV. IVs can also be obtained by turning in previously purchased barns, pastures, and upgrades that you no longer need, as explained in the next section.
About the HBs cap at 9,999,999 and converting to IVs to avoid losing game cash. There is no cap on the number of IVs you may hold and they never expire.