The main importance of a drawing account is that it separates the company's income between its owner and its creditors. This allows the business to track its net income more accurately and makes it easier to determine how much profit (or loss) was made during the year.
In addition, the drawing account can be helpful for the company's owner in terms of personal budgeting. It provides a record of how much cash was taken from the business, which can be helpful in forecasting future income and expenses.