Useful Internal Revenue Service Phone Numbers


Links to Other Resources

Useful IRS Phone Numbers

IRS Directory for Practitioners – Connecticut (Microsoft Excel document)

You may also find these directories to be helpful.

 

Toll-Free IRS Practitioner's Hotline: 866-860-4259
(Monday - Friday 7:30 a.m. to 5:30 p.m.)

Toll-Free Number for Cincinnati Service Center: 866-699-4083
(For taxpayer inquiries on status of Form 706 filings, including claims and amended returns, extensions, etc.)