Tintsman v. National Bank was a case heard by the United States Supreme Court in 1879. The case involved a dispute between the National Bank of St. Louis and the Tintsman family over a loan that the bank had made to the family. The Tintsman family had borrowed money from the bank and had agreed to pay it back with interest. However, the family had failed to make the payments and the bank had sued them for the money. The Supreme Court ruled in favor of the bank, finding that the Tintsman family had breached their contract with the bank and were liable for the money they had borrowed. The Court also held that the bank had the right to collect the money from the family, even if the family had not made the payments. The Court also held that the bank had the right to collect interest on the loan, even if the family had not made the payments. The Court's decision in this case established that banks have the right to collect money from borrowers who have failed to make payments on their loans. It also established that banks have the right to collect interest on loans, even if the borrowers have not made the payments. This case is still cited today as an example of the rights of banks to collect money from borrowers who have failed to make payments on their loans.

In Tintsman v. National Bank, the Supreme Court was asked to decide whether a national bank could be held liable for damages caused by its negligence in failing to collect on an overdue note. The majority opinion found that the bank was not liable because it had acted reasonably and without fault in attempting to collect on the note. Justice Field dissented from this decision, arguing that a national bank should be held accountable when it fails to exercise reasonable care and diligence in collecting debts due from its customers. He argued that if banks were allowed to escape liability for their own negligence, they would have no incentive whatsoever to act responsibly or with any degree of caution when dealing with debtors' accounts. Furthermore, he noted that Congress had intended for such accountability as evidenced by provisions within the National Banking Act which required banks "to use all reasonable diligence" when collecting notes due them from their customers.