Credit Card Statements are not Enough

A credit card statements is not proof of the business purpose of an expense.  This requires receipts or other evidence that serve to demonstrate the exact nature of the purchase and why it was an ordinary and necessary for the business.  Just showing that a payee is an office supply store or other vendor of items or services, most of which are ordinary and necessary for the business is not enough.  Nor is the taxpayer's general recollection of the business purpose of an expense likely to be sufficient proof of business purpose.