Part 21. Customer Account Services

Table of Contents


21.1 Accounts Management and Compliance Services Operations
21.2 Systems and Research Programs
21.3 Taxpayer Contacts
21.4 Refund Inquiries
21.5 Account Resolution
21.6 Individual Tax Returns
21.7 Business Tax Returns and Non-Master File Accounts
21.8 International
21.10 Quality Assurance