Legal analysis: banks can sue for overdue for 90 days. The loan owed to the bank is a loan contract dispute. Regardless of the amount, the bank can sue the court for recovery. If the bank still refuses to perform after the judgment of the court, it may apply to the court for compulsory execution.

Legal basis: People's Republic of China (PRC) Civil Procedure Law.

Article 17 The basic people's courts shall have jurisdiction over civil cases of first instance, except as otherwise provided by this Law.

Article 18 The Intermediate People's Court shall have jurisdiction over the following civil cases of first instance:

(1) Major foreign-related cases;

(two) cases that have a significant impact in the region;

(3) Cases determined by the Supreme People's Court to be under the jurisdiction of the Intermediate People's Court.

Article 119 A prosecution must meet the following conditions:

(1) The plaintiff is a citizen, legal person and other organization that has a direct interest in the case;

(2) Having a clear defendant;

(3) Having specific requests, facts and reasons;

(4) It falls within the scope of civil litigation accepted by the people's court and is under the jurisdiction of the sued people's court.