Unpaid share capital

Your question has a mistake. If subscribed capital is less than issued capital, then the remaining capital is not called unpaid capital.

Unpaid capital is part of call money which has not been paid by the shareholders after it becomes due.

The answer to your question is in two parts:

1. There should be minimum subscripttion of atleast 90% of shares issued to public. If less than that the application money will be refunded and no allotment will be made.

2. But if subscripttion is more than 90% and less than 100%, then share are alloted and subscribed capital is shown in balance sheet under issued capital. and no treatment is done with the unsubscribed capital.

Hope it will be helpful