FSLG Customer Services
Depending on the nature of your request, please use one of the following methods to contact us.
Customer Account Services
You can call toll-free at (877) 829-5500 with questions concerning the following as they relate to government entities:
- Account-related questions.
- Request for a government information letter.
- Request for private letter ruling.
- FSLG telephone numbers
Martinsburg Computing Center (MCC)
If you have questions concerning filing requirements and procedures for issuers of information returns (including any Form 1099) or Form W-2, you may contact the Martinsburg Computing Center toll-free at 1-866-455-7438, 8:30am to 4:30pm Eastern Time. Note: If you have questions regarding a Form W-2 or a Form 1099 that you have either received or should have received, please call the general IRS assistance toll-free number, 1-800-829-1040.
IRS Toll-Free Help
Government entities with account-related questions may contact us at the Customer Account Services toll-free number above. You may call 1-800-829-1040 with any Federal tax questions.