If the entity operation generates net income, then retained earnings are positive, and if the entity makes operating losses then retained earnings will turn to negative. Sometimes it is called accumulated losses.
When retained earnings turn into negative, total equity is also decreasing. In some countries, if the equity turns to the level that is below the requirement, shareholders or owners are normally required to inject more funds.
Negative return earnings are not the positive sign for the entity and potential investors might concern about this seriously.
However, there are many factors that we can look into in detail. For example, the ages of the entity, nature of the industry that entity operating in, and other internal factors.
If an entity does just start its operation, then the entity would not make profits and most likely make losses.
However, it will turn into operating profits when entity operation runs smoothly, the brand name is well known and sales significantly increase.
And if the entity is operating in some industry like the insurance industry, the entity might spend some more time than others to breakeven and make profits.
Excessive dividend payments could also cause retained earnings into negative however it is not often that we can see this.
A large amount of negative earnings and long-run operating losses indicates that entity might face going concern or bankrupt.
This is not a negative impact on potential investors but other potential stakeholders like bankers, creditors, large customers, suppliers, and staff also reluctantly rely on the entity.
These are the main factors that can lead retained earning into negative and there are many other factors like sales, cost of goods sold, and operating expenses are also the factors that need to consider.