Get 1545-0429 (Rev

Answer: If you lost your refund check, you should initiate a refund trace: Use Where's My Refund, call us at 800-829-1954 and use the automated system, or speak with an agent by calling 800-829-1040 (see telephone assistance for hours of operation).

Other ways to contact a real person at the IRS Generally, you can't just show up at a local IRS office any time. You have to make an appointment. That IRS number is 844-545-5640. During tax season, however, TAC offices will usually accept walk-ins once a month on select Saturdays.

267-941-1000 for international callers or overseas taxpayers. (Overseas taxpayers may also fax a tax question to 681-247-3101 or use our international contact address page.) 800-829-1040 if you are in Guam, the Bahamas, U.S. Virgin Islands, or Puerto Rico.

A good rule of thumb: Call as early in the morning as possible. Phones are open from 7 a.m. to 7 p.m. (your local time) Monday to Friday, except: Residents of Hawaii and Alaska should follow Pacific time.

A good rule of thumb: Call as early in the morning as possible. Phones are open from 7 a.m. to 7 p.m. (your local time) Monday to Friday, except: Residents of Hawaii and Alaska should follow Pacific time.

You can call 1-800-829-1040 to get answers to your federal tax questions 24 hours a day. Tax forms and instructions for current and prior years are available by calling 1-800-829-3676. You can also order free publications on a wide variety of tax topics.

Another option for both businesses and individuals is the Electronic Federal Tax Payment System. You must enroll to use this system. You can pay online or by phone at 1-800-555-3453.