In the face of owing money, the most effective and common way is to bring a lawsuit to the court. Prepare the following materials:

1, loan contract or IOU

2. Transfer details or proof of payment;

3 guarantee procedures (such as property mortgage or guarantor guarantee, etc.). );

4. Loan guarantee materials and property certificates;

Legal basis: Article 84 of the Civil Code of People's Republic of China (PRC) is a specific relationship of rights and obligations between the parties according to the contract or the law. The obligee is the obligee, and the obligor is the debtor. The creditor has the right to require the debtor to perform its obligations in accordance with the contract or according to law.