A company investment puts surplus cash into funds through a life assurance investment bond owned by the company. The money stays on the company's balance sheet and can be drawn back when the business needs it. Nothing leaves the company, so no personal tax arises.
We start with the reserve. Before anything is invested, the plan sets the cash the business should keep for wages, tax, suppliers and a bad quarter. Only money above that, which the company will not need for some years, is considered for investment.