Banks settle their indebtedness in the clearing house. A clearing house is a financial institution that facilitates the exchange of payments, securities, or derivatives between participating banks or financial institutions. It acts as a middleman between banks to facilitate the settlement of financial transactions. When a bank receives a check or other payment instrument from a customer of another bank, it sends the item to the clearing house for processing. The clearing house then verifies and settles the transaction by debiting the account of the bank that received the payment and crediting the account of the bank that made the payment. This system ensures that payments are settled efficiently and securely between banks.