The online loan was overdue and said that he would go to court to sue me.

Yes, overdue online loans will cause borrowers to be sued by creditors to the court. Once the borrower fails to repay the debt within the time limit, the creditor has the right to take legal measures to recover the debt. The following are relevant instructions:

1. legal procedures: the creditor can sue the borrower through the court, demand repayment and apply for compulsory measures.

2. Basis for prosecution: According to the Contract Law and relevant laws and regulations, the borrower's overdue repayment constitutes a breach of contract, and the creditor can pursue its responsibility according to law.

3. Court decision: The court will conduct a trial according to the facts and laws to decide whether the borrower needs to repay the debt, and may generate corresponding penalty interest and late payment fees.

4. Enforcement: If the borrower still refuses to perform the judgment, the creditor may apply for enforcement, seal up, detain or auction the borrower's property to repay the debt.

Summary: The overdue online loan may cause the borrower to be sued by the creditor to the court. The court will hear the case and make a judgment in accordance with relevant laws. If the borrower refuses to perform the judgment, the creditor may apply for enforcement measures. It is suggested that borrowers communicate with creditors as soon as possible to seek solutions and avoid legal disputes.

Supplementary information: According to the Contract Law and relevant Chinese laws, overdue repayment is a breach of contract. The specific treatment methods and consequences may be different due to factors such as region, amount, and negotiation between the parties. If you encounter the problem of overdue online loans, it is recommended to consult professionals or the nearest legal aid institutions for specific guidance in time.