Usually,money flows from your customers to your business. But there may be times whenyou have to purchase items for a job whose costs will eventually be reimbursed.Or you, or an employee, might spend time providing services for customers andget paid for those hours by your company before you receive payment from theresponsible party. If you’re a sole proprietor with no payroll and no reserves,of course, you just have to wait to be paid for your work.