Directory information — verify before you send. This fax number was compiled by automated research from public sources. It may be out of date, incomplete, incorrect, or in rare cases wrong entirely, and it is not confirmed by Capital One Bank. Before sending anything sensitive, confirm the number and receiving department directly with Capital One Bank, and consider sending a test cover page first. FaxFlow is an independent directory, is not affiliated with, endorsed by, or sponsored by this organization, and accepts no liability for reliance on this listing.

This appears to be a tax or government destination. These numbers change frequently and vary by form, state, and office. Confirm the current number on the official IRS or .gov page before sending — a misdirected filing can expose your SSN and miss a deadline.

Represent Capital One Bank? Request a correction or removal. By using this directory you agree to our Fax Directory Terms.

Taxhigh confidence

Capital One Bank fax number

(877) 806-4430

Wrong or outdated? Report this number

Used for: Submitting documents to remove backup withholding on Capital One bank accounts by fax to this number.

Fax destination details

Purpose
Submitting documents to remove backup withholding on Capital One bank accounts by fax to this number.
Address
Capital One Bank, ATTN: Bank by Mail, PO BOX 85123, Richmond, VA 23285

Before you send

  • Confirm that this exact department handles your document or request.
  • Check the organization website or call its main line for the current fax number.
  • Include a cover sheet and any case, member, claim, or form reference required.
  • Keep the delivery confirmation with your submission records.

Submit required documents to stop or adjust backup withholding; you can fax them to 1-877-806-4430 ATTN: Capital One, or mail to Capital One Bank, ATTN: Bank by Mail, PO BOX 85123, Richmond, VA 23285.

Review official form instructions

Sources and verification

FaxFlow records the public sources found during directory research. A source link is useful evidence, but it is not a guarantee that a number still reaches the same team.

No public source link was saved with this record. Confirm the number directly with the organization before using it.