On the issue of tax payment, if the company fails to pay taxes and fees and does not continue to operate, it will be suspected of tax evasion, which may seriously violate the criminal law and constitute a criminal offence.
Regarding the outstanding creditor-debtor relationship, if the company refuses to cancel, the company's creditor's rights cannot be claimed, and the relevant responsible person (usually a legal person) of the company may bear corresponding responsibilities.
In addition, there are certain risks. Some people with ulterior motives may use this unregistered company to engage in some illegal acts, and may eventually hold the company and relevant responsible persons accountable.