At January 31, the end of the first month of the year, the usual adjusting entry transferring expired insurance to an expense account is omitted. Which items will be incorrectly stated, because of the error, on
(a) the income statement for January and
(b) the balance sheet as of January 31? Also indicate whether the items in error will be overstated or understated.

Insurance

A financial product sold by insurance companies to safeguard against financial losses from specific risks, such as accidents, theft, or natural disasters.

Adjusting Entry

An accounting entry made in the journals at the end of an accounting period to allocate income and expenditure to the period in which they actually occurred.

Income Statement

A financial statement that reports a company's financial performance over a specific accounting period, listing revenues and expenses to show net profit or loss.