Tax Resources for Accountants and Small Businesses (U.S.)
If you receive a CP2100 or CP2100A Notice from the IRS, it means some of the name and taxpayer identification number (TIN) combinations on your Forms 1099 don’t match IRS or Social Security Administration...
Updated: October 30, 2025 Understanding the IRS Second B Notice When you issue Form 1099s to vendors or contractors, the IRS expects each payee’s name and taxpayer identification number (TIN) to match official records....
Here is link to IRS Publication 1281 – which covers Backup Withholding for Missing and Incorrect Name/TINs. TABLE OF CONTENTS Part 1- Introduction • Backup Withholding Rate/Effective Dates 3 Part 2 – Frequently Asked...