Important Phone Numbers for 2026 Tax Season
Identity Theft Protection Unit: 800-908-4490
Refund Offset Questions: 800-304-3107
IRS Refund Hotline: 1-800-829-1954
ITIN Line: 1-800-908-9982
Internal Revenue Service: 1-800-829-1040
Social Security Administration: 1-800-772-1213
E-Services: 866-255-0654
PTIN Line: 877-613-7846
IRS CE Line: 1-888-316-7581
IRS Business EIN Division: 1-800-829-4933
Tax Forms & Instructions: 1-800-829-3676
Posted: October 29, 2025