Most business will have trading cash flows as highlighted in the diagram. Cash will come from customers; although not immediately the sale is made if credit is given. Suppliers and employees will take cash from the business, but again there will be a timing factor to take into account. Other regular cash outflows will be interest to lenders of funds, taxation and dividends or drawings to owners.
Other cash flows take place when the business purchases equipment, stock, and makes loan repayments as well as the interest. The business may also decide to make investments which could include investments in other businesses. The credit terms given to customers need to be funded until the customer pays. Sometimes a business also uses credit from suppliers as a source of funds.
Clearly an important source of funds is the profits from past trading known as retained earnings.