Would an Ontario court enforce a Heter Iska? When a religious Jew lends another Jew money they often enter into an agreement called a Heter Iska. Faced with the biblical prohibition against charging interest on loans and the reality that lenders are more likely to lend people money when interest can be charged, the Rabbis created a halachic mechanism to still allow a lender to profit from the loan and not charge interest. This halachic document is called the Heter Iska. The Heter Iska characterizes the lender as an investor who provides capital for a business venture. The Heter Iska provides that the investor transfers ½ of the money as an interest-free loan, is to be repaid even in the case of total loss; the other ½ of the money is the investor’s share of the business venture, which entitles the investor to receive profit that not coincidentally is equivalent to the interest a lender would charge. Thus, at the end, the investor’s money would be returned, and any profits (or losses) would be shared. This halachic mechanism serves to ensure that Jews will not have a financial disincentive to loan one another money.