How to Fax Documents to Your Bank or Credit Card Company
Banks and card issuers sometimes ask for documents by fax during a dispute or account review. Here's how to send them, and when fax is not the right channel.
Published: 2026-10-19
Banks and credit card companies sometimes ask you to send documents during a dispute, a fraud claim or an account review. Many offer an upload center, but some also list fax as an option. American Express, for example, accepts billing dispute documentation by online upload, fax or mail. If your bank or issuer gave you a fax number, you can send the documents from your phone or computer with AnytimeFax, without a fax machine, account or subscription. One important exception: the formal billing error notice that protects your dispute rights has its own rules, and fax is not one of the channels the rule names.
Your formal dispute letter has its own rules
Under Regulation Z (§ 1026.13), a billing error notice must be in writing and received at the address shown on your statement within 60 days after the first statement with the error. It can be sent electronically only if your issuer's billing rights statement says it accepts electronic notices and explains how. Send that notice the way your statement says. Use fax for the supporting documents your issuer asks for.
Credit report disputes don't go by fax
The CFPB says you can dispute with Equifax, Experian and TransUnion online, by mail or by phone, and that disputes to the company that reported the information should be sent in writing by certified mail. Fax is not one of the listed options.
What you need
- The fax number your bank or card issuer gave you, taken from their letter, your online account or their official website.
- Your account number and any case or inquiry reference number they asked you to include.
- The documents as a PDF, DOC or DOCX file — up to 10 MB in total and 20 pages per order (larger jobs can be quoted).
- An email address to receive a one-time verification code.
Step-by-step
Check which channel they asked for
Read the letter, email or message in your account. If they offer an upload center, that is usually the most direct route. If they list fax, use the exact number they give you, not one from another website.
Write your reference on every page
Add your account number and the case or inquiry reference number to each document, or to a cover page. American Express, for example, asks for both on all dispute documents.
Scan or export to PDF
Scan receipts, letters or statements so the text is readable. Dark text on a white background survives the conversion to fax best. Black out anything they didn't ask for.
Upload and enter the number
Upload one or more files on Send a Fax. They are merged in the order you upload them. Type the fax number and compare it with the source.
Verify your email and pay
Enter the one-time code sent to your email. Because bank and card details are sensitive, you'll confirm at checkout that you're sending them on your own behalf. Your first one-page fax is free (once per email address). After that: $4.99 for 2–4 pages, $5.99 for 5–10 pages and $7.99 for 11–20 pages. If you already used the free fax, a single page costs $4.99 (Standard) or $20 (Urgent).
Keep proof and follow up
Save your order ID (it starts with AF-) and the invoice from the Track Order page. Note the date you sent the fax, and check with your bank or issuer that they have what they need.
Tips
- Call your card issuer first if you see a wrong charge. The CFPB recommends calling right away and then sending a written billing error notice within 60 days.
- The card company has 30 days to confirm it received your dispute, unless it resolves it within that time, according to the CFPB.
- If an issuer asks you to approve access to your tax transcript, the IRS says the lender sends the Form 4506-C request and you approve it with your electronic or physical signature. You can also reject it.
- Send only what was requested. A full card number is rarely needed; your account number and reference usually are.
Common mistakes
- Faxing your formal billing error notice instead of sending it to the address on your statement.
- Faxing a credit report dispute to a credit bureau, when the CFPB lists online, mail and phone.
- Leaving off the account number or case reference, so the documents can't be matched to your file.
- Using a fax number from an unofficial website instead of the one your bank or issuer gave you.
- Assuming a delivered fax means your dispute has been accepted.
Delivery expectations
Standard, Extended and Large orders are delivered within 24 hours, and the free one-page option can take up to 3 days. Urgent orders ($20, up to 20 pages) are processed within 90 minutes of payment confirmation. A successful delivery confirms that the fax was transmitted to the recipient's fax number; it does not confirm that someone has reviewed or accepted your document. Review and dispute timelines are set by your bank or card issuer and by federal rules, not by AnytimeFax.
Alternatives
- The upload center in your bank's or issuer's website or app, when they offer one.
- Mail to the address they give you — for a formal billing error notice, the address on your statement.
- For credit report disputes: online, mail or phone with the credit bureau, as the CFPB describes.
Frequently asked questions
Official sources
Last verified: 2026-10-18
AnytimeFax is an independent service operated by Rise & Built Corp. It is not affiliated with American Express, any bank, any credit bureau, the CFPB, the IRS or any government agency. Third-party requirements were checked on the date shown above; always confirm current requirements with the recipient. This page is general information, not legal or financial advice.