Call 800-829-1040 for individual tax questions
Call 800-829-4933 for business tax questions
Call 800-829-4059 if you are hearing impaired and use TTY/TDD
Call 267-941-1000 if you are outside the United States
Have your Social Security number or EIN ready
Have your tax return and any IRS notices nearby
Call during IRS business hours
Use the IRS website if you need alternative contact options