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Contact Us

Translation services are available through the Language Line.

For additional information, please call (202) 759-1931 or our main call center at (202) 727-4829.

For help with the portal, login questions or other questions about our self-service options, please contact our E-Services team at [email protected] or (202) 759-1946.

For assistance with responding to a verification letter, please call our Return Integrity Unit at (202) 741-8629.

If you are looking for assistance with updating your address, reviewing previous correspondence, viewing previously filed returns, or checking your remaining credit balance, these options and many others are available via our self-service portal at