The IRS has begun mailing notices to businesses, financial institutions and other payers that filed certain returns with information that doesn’t match the agency’s records. These CP2100 and CP2100A notices are sent by the IRS twice a year to payers who filed information returns that are missing a Taxpayer Identification Number (TIN), have an incorrect name or have a combination of both. Each notice has a list of persons who received payments from the business with identified TIN issues. If you receive one of these notices, you need to compare the accounts listed on the notice with your records and correct or update your records, if necessary. This can also include correcting backup withholding on payments made to payees. Which returns are involved?  Businesses, financial institutions and other payers are...