This mid-month statement will overstate income and understate expenses. For instance, if your business records most of your sales in the first 7 days of the month but does not record expenses till after the 20th of the month. The periods are usually stated in monthly, quarterly, or annual terms.
An income statement a.k.a. A mid-month statement can misrepresent the data. Profit & Loss, is a summary of income received and expenses reported during a stated period.
Income can be subcategorized by type of sales. For example a fish store could have: Freshwater Fish, Saltwater Fish, Equipment, Tank Supplies, and Food. Breaking down income this way at the end of the period helps the owner look at her Income Statement and know the dollar total of each type of sale. Another tool is to know what percentage of your sales come from new customers versus existing customers.
One common mistake is to track income that is not earned by selling your business product or service in the income section of the statement; e.g. sales of assets, loan deposits, or tax refunds. Loan deposits are tracked on the balance sheet. Other income generated from other business activity such as gain on sale of assets and tax refunds is reported at the bottom of the statement after expenses in the area reserved for non-operational income.
When is a sale really a sale?
A cash accounting method records the sale when the customer pays. An accrual method records the sale at the time the customer order is confirmed. Payment is handled separately on the balance sheet against the receivable generated from the sale. Why is this an issue? The accrual method attempts to match a sales income with its expenses to better determine if the sale was profitable. Cash accounting tracks sales and expenses as they are paid by your customer or you making it harder to determine if the sale was profitable.
When printing out your P&L use the feature (within software) called percent of income. What this does is divide each account for income and expenses by the total sales for the period. Monitoring this percent allows you to compare periods regardless of the amount of the income or expense. For example, if sales for the month are 50,000 for January and your payroll is 10,000, then 10,000 divided by 50,000 equals 20%. This translates to: for every dollar of sales you spend 20 cents for payroll. The next month your sales are 40,000 and your payroll is still 10,000. 10,000 divided by 40,000 equals 25% or for every dollar of sales you spent 25 cents for payroll. You can see how knowing the percent of income can be a valuable management tool.