In the United Kingdom, the term bankruptcy is reserved for individuals. Insolvency is defined both in terms of cash flow and in terms of balance sheet in the UK Insolvency Act 1986, Section 123, which reads in part:

A company is deemed unable to pay its debts –
(a) if a creditor (by assignment or otherwise) to whom the company is indebted in a sum exceeding £750 then due has served on the company, by leaving it at the company’s registered office, a written demand (in the prescribed form) requiring the company to pay the sum so due and the company has for 3 weeks thereafter neglected to pay the sum or to secure or compound for it to the reasonable satisfaction of the creditor
(2) A company is also deemed unable to pay its debts if it is proved to the satisfaction of the court that the value of the company’s assets is less than the amount of its liabilities, taking into account its contingent and prospective liabilities.

A company which is insolvent may be put into liquidation (sometimes referred to as winding-up). The directors and shareholders can instigate the liquidation process without court involvement by a shareholder resolution and the appointment of a licensed Insolvency Practitioner as liquidator. However, the liquidation will not be legally effective without the convening of a meeting of creditors who have the opportunity to appoint a liquidator of their own choice. This process is known as creditors voluntary liquidation (CVL), as opposed to members voluntary liquidation (MVL) which is for solvent companies. Alternatively, a creditor can petition the court for a winding-up order which, if granted, will place the company into what is called compulsory liquidation or winding up by the court. The liquidator releases the assets of the company and distributes funds realised to creditors according to their priorities, after the deduction of costs. In the case of Sole Trader Insolvency, the insolvency options include Individual Voluntary Arrangements and Bankruptcy.