Contact: IRS Operations Center, 1250 L Street, SW, Washington, DC 20152 Phone:; Fax:; E-mail: For more information, see Go to for online filing instructions. Form W-9-V For more information on this form, including the latest information, go to the IRS website, and scroll to the bottom of the forms page. Get Federal Taxpayer Identification Number/Taxpayer Certification For more information on getting a Federal Taxpayer Identification Number (IDN), or a taxpayer certification, please see the National Registry of Federal Taxpayer Identification Numbers (CERTAIN) and the IRS's Guide To Getting A Federal Taxpayer Identification Number (FBI). Contact: IRS Operations Center, 1250 L Street, SW, Washington, DC 20152 Phone:; Fax:; E-mail: For more information, see Go to for online filing instructions. About Form W-10-B (Payable by Paper) — US Legal Forms To request a w10b, make a paper request to the Alaska Division of Taxes, PO Box 141450, Anchorage, AK 99. Or, e-mail the Division of Taxes and request this form from them. The deadline for each state is different, but it does vary by date.