1. Default interest on overdue loans: banks or lending institutions charge default interest on overdue loans, which is calculated according to the interest rate agreed in the contract.

2. Damaged credit record: overdue repayment will have a negative impact on personal credit record, which may affect the application for other loans or credit cards in the future.

3. Collection action: Lending institutions can take legal measures to collect debts, such as collecting debts through lawyers' letters and telephone calls.

To sum up, the consequences of starting a business in loans overdue for one day include penalty interest, credit record damage and collection action. Timely repayment is very important to avoid overdue situation.

Extended data:

-If the repayment is overdue for many times or for a long time, the credit record will be more seriously affected and it will be difficult to obtain other loans.

-Banks or lending institutions may submit overdue information to credit reporting agencies, which will leave bad records in personal credit reporting.

-Overdue repayment may lead to debt accumulation, increase repayment pressure and even affect personal financial situation.

-Some loan contracts will stipulate overdue penalty, and more fees will be paid after overdue.

-loans overdue's business repayment may have a negative impact on corporate image and reputation, reducing business cooperation opportunities.