If you received a tax notice and need to speak with someone about it, call the phone number on the notice. For other concerns, you can call an IRS customer service representative from 7 a.m. to 7 p.m. (local time) Monday through Friday. The number is 800-829-1040. You may need to verify your personal identifying information and wait while your call is routed through the automated system. Those with hearing impairments (TTY/TDD) can call 800-829-4059 for assistance. To check the status of your refund, you can call 800-829-1954. You can also schedule a face-to-face meeting with an agent at your local IRS office.