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Greeting as a form of Ribbit & more
1. ONE TIME PENALTIES
If the lender issues an interest-free loan but stipulates that there will be a one-time late fee if the loan is not satisfied by a certain date, one would not be subject to the classical Biblical Ribbit prohibition. There is however a rabbinical prohibition. Such an arrangement would be classified as Ha’arama Ribbit (a Ribbit “trick”), since it can be used as a loophole allowing one to circumvent the prohibition.
However, since this is only a rabbinical prohibition, it is subject to certain leniencies. For example, it is permitted to charge a late fee if the obligation was not initiated as a loan but rather as payment for service or a sale. This being the case, a vendor who offers goods or services on credit may require a late fee if the debt is not satisfied on time.
2. GREETING THE LENDER
One who usually would not go out of his way to greet his friend, to attend his Simha, or to buy him an Aliya, may not do so if that individual has lent him money. There is a question among the poskim if he may casually thank his friend for this loan. However, thanking him effusively or buying him a gift to show appreciation for the loan must be avoided.
This Halacha applies only during the loan period and at the time of repayment. After the loan has been repaid, there is no prohibition of Ribbit Devarim. There is a debate among the Poskim as to how soon after the payment one may thank the lender.
3. GREETING THE LENDER II
A story is told of a student (Selected Writings p. 287) who borrowed money from Rav Yerucham Levovitz z”l, the renowned Mirrer Mashgiach. The student began thanking him for the loan however Rav Yerucham interrupted and explained the concept of Ribbit Devarim.
A year later, the student returned to Rav Yerucham to borrow some more money. Remembering what had happened the year before, the student took the money and left without saying a word. Rav Yerucham called him back and admonished him for not having proper Hakarat HaTov (gratitude)! The student protested that he was not allowed to say “thank you” for the loan, as Rav Yerucham himself had previously explained.
Rav Yerucham responded that although the borrower is prohibited from actually saying “thank you” because of Hilchot Ribbit, he must still have the appropriate Hakarat HaTov toward the lender. He may not express it by giving the lender a monetary or even a verbal present, but must feel gratitude for the loan. Rav Yerucham sensed that the student lacked the appropriate feelings.
This story illustrates the proper Hashkafa (outlook) of Ribbit Devarim. Although a loan is clearly a favor for the borrower, and he indeed must be grateful for the loan, the Torah prohibits the lender from being compensated by the borrower. However, although the borrower is prevented from demonstrating his Hakarat HaTov, he must still be appreciative.
In a similar vein, a Gadol was once asked whether lending money with the intention to generate friendship is considered Ribbit. He replied that Hilchot Ribbit encourages us to help each other with free loans. It teaches us how to act towards a fellow Jew. Creating and strengthening friendships by offering free loans is the purpose of Hilchot Ribbit, and certainly not a violation of its laws.
Ribbit Devarim applies to other scenarios as well. A borrower may not greet the lender if he would not have done so before the loan (If the lender greets the borrower first, the borrower may return the greeting).