This letter is issued when an auditor requires preliminary information related to a tax return before deciding whether to open an official audit. A clear and concise balance confirmation letter is crucial for maintaining accurate records, preventing disputes, and ensuring smooth financial transactions.This letter confirms that CMS will be conducting an audit of Company Name from Date to Date. The purpose is to assess compliance with Medicare regulations. This is a letter that your auditor will send out to third parties, such as banks or suppliers, asking them to confirm certain financial information. This is a letter we use to inform our Supplier of an upcoming audit. We leave the it as generic as possible , so that we can get a good measure of the supplier. The State Controller's Office (SCO) Data Exchange Portal (DEP) automatically generates a confirmation email for uploaded reports or letters. Example audit letters from the IRS and state taxing agencies. I put this on letter head and attach to an email.