If you use the accrual method of accounting, an increase in the amount of notes payable (bank loans) must be added to your accrual net profits to determine the cash flow of your business. Under the accrual method of accounting, a loan is recorded by increasing the amount of cash received from the loan, and increasing the amount of notes payable. No part of this transaction is reflected in your accrual net profits. Therefore, to determine your cash flow, you must add the increase in notes payable to your accrual net profit to reflect the real change in your cash balance.

Similarly, a decrease in the amount of notes payable must be subtracted from your accrual net profits. Like the increase in notes payable, no part of the transaction to record a principal payment on a note payable is reflected in your accrual net profit. Therefore, it must be subtracted from your accrual net profit to determine the real effect on your cash flow.