Legal analysis: 300,000 yuan owed to the bank. If it is a loan owed to a bank, it is only a civil dispute and will not be investigated for criminal responsibility and imprisonment. After the bank wins the case, if the parties fail to perform the court's judgment within the performance period, the bank may apply to the court for enforcement. When accepting the execution, the court will inquire about the property, vehicles, securities and deposits under the debtor's name according to law; In addition, if the debtor has no executable property and refuses to perform the effective judgment of the court, his personal credit report will contain negative information such as overdue payment, and he will be restricted from high consumption and entry and exit, and may even be punished by judicial custody. Those who have the ability to refuse to execute are suspected of refusing to execute the judgment or ruling.

Legal basis: Article 313 of the Criminal Law of People's Republic of China (PRC) refuses to execute the judgment or ruling of the people's court, and if the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or a fine. I owe the bank 300 thousand. If I owe the bank a loan and don't pay it back, it's just a civil dispute, and I won't be investigated for criminal responsibility and jailed.