IRS Corporate Office

We have listed below IRS corporate office details including the full address to mail the company and the best IRS phone number. IRS Headquarters Address is at 1111 Constitution Ave., NW, Washington DC, MD, USA, 20224. They are available on their usual working hours and can be contacted after business hours via email or live chat online.

What is IRS Corporate Phone Number?

IRS Corporate Phone Number is 800-829-1040

For direct communication with IRS corporate office, call the number provided above and use the automatic voice operating system that will direct you the right person at IRS corporate office including management, sales, finance, human resources, IRS customer service, support, legal and all other departments.

What is IRS Corporate Office Address?

1111 Constitution Ave., NW
Washington DC
MD 20224

Due to the COVID-19 pandemic IRS corporate office is acting accoriding to the guidance of the MD authorities. IRS corporate office hours may change – please make sure to follow the updates IRS official website and the news for business activities including lockdowns.

The phone number provide in this page may not be a toll-free phone number and you may get charged while calling this number at the usual calling prices according to your operator. This IRS corporate office number is available on normal working hours and may be closed during some official holidays.

We thrive to provide you with the most up-to-date contact information for IRS corporate office and other corporations. If you find that the information on this website is not accurate, please contact us and provide the correct information so we can update it for the usage of all users.

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This website, is a leading corporate office contacts directory, that was established to provide, for free, the best and most up to date information for IRS including phone numbers, addresses, and more. We are constantly working to ensure we provide you the best IRS details and information. is a high-quality website that has no direct affiliation with IRS or any federal or state department, agency, office, board, or commission.

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