Call the IRS main customer service line at 800-829-1040
Call early in the morning for shorter wait times
Call later in the week, such as Wednesday through Friday
Avoid calling during peak tax season if possible
Have your Social Security number or ITIN ready
Have a copy of your most recent tax return available
Have any IRS notices or letters in front of you
Use the automated system and follow prompts carefully
Say “representative” or “agent” when prompted by the automated system
Use the IRS online account for account-specific information
Try the IRS Taxpayer Assistance Center appointment line if needed
Call the IRS business line at 800-829-4933 for business tax issues
Call the IRS refund hotline at 800-829-1954 for refund status
Call the IRS identity protection line at 800-908-4490 if needed
Use the TTY/TDD line at 800-829-4059 for hearing-related support
Be persistent and redial if you get disconnected
Keep notes of the date, time, and name or ID of the representative
Use the IRS website to find the correct phone number for your issue
Contact the Taxpayer Advocate Service if you cannot resolve the issue
Visit a local IRS office by appointment if phone support is unavailable