Send a Fax Online to the United States — No Subscription, Pay Per Page
Send a Fax to a US Number Right Now
Upload your PDF, select United States (+1), and enter the fax number. Pay per page. No account required to start.
Need an IRS destination? Use the verified IRS fax number directory to choose the route by form and taxpayer location before sending.
The United States remains one of the most fax-active countries in the world. Healthcare, legal, government, real estate, and financial industries all rely on fax as a standard document exchange channel. If you need to send a signed form, insurance document, tax filing, or legal contract to a US recipient, this guide covers everything you need to know.
US fax number format
US fax numbers follow the North American Numbering Plan (NANP), the same system used for voice calls:
- Country code: +1
- Area code: 3 digits (e.g. 212 for New York, 213 for Los Angeles, 312 for Chicago)
- Local number: 7 digits
- Full format: +1 (212) 555-0100
When sending from an online fax service, select United States (+1) from the country dropdown, then enter the 10-digit number (area code + local number) without any leading digits.
Industries that use fax in the US
Healthcare
The US healthcare system remains a major fax user. HIPAA does not make every fax service or transmission automatically compliant; covered entities and business associates must apply the required administrative, physical, and technical safeguards. Common fax workflows include:
- Sending referral letters between physicians and specialist offices
- Submitting prior authorization requests to insurance companies
- Exchanging lab results and radiology reports between facilities
- Patient records requests and medical record transfers
Most major hospital networks, insurance providers such as Aetna, UnitedHealth, Cigna, and Blue Cross Blue Shield, and independent clinics still maintain active fax lines for these workflows.
Legal and real estate
Law firms, title companies, and real estate agents routinely fax:
- Signed contracts and purchase agreements
- Court filings and legal notices
- Property disclosure forms and escrow instructions
- Powers of attorney and notarized documents
Rules for service and court filing vary by jurisdiction, document, and recipient. Confirm the current permitted method before sending a legal document; a delivered fax does not by itself prove legal acceptance or timely filing.
Government and tax
The IRS (Internal Revenue Service) maintains fax numbers for specific submission categories, including amended returns, responses to audit notices, and certain identity verification requests. State tax agencies and social service offices similarly accept faxed submissions for forms, appeals, and benefit applications.
Other federal and state agencies — the Department of Veterans Affairs, Social Security Administration, state licensing boards — also use fax for document submission.
Financial services
Banks, credit unions, and mortgage lenders use fax to exchange signed authorizations, wire transfer instructions, loan applications, and identity verification documents. Fax is preferred over email for these communications because it does not pass through third-party mail servers.
How to send a fax to a US number
- Save your document as a PDF. Make sure signatures are visible and the file is not password-protected.
- Go to Send Fax Online in any browser — phone or desktop.
- Select United States (+1) from the country dropdown.
- Enter the 10-digit fax number (area code + local number).
- Review the page count — 10 credits per page.
- Pay and send. Track delivery in fax history.
Pricing
Credit packs start at $4.99 for 50 credits (~5 pages). There is no monthly subscription and credits do not expire. A typical 3-page US insurance form costs 30 credits. A 10-page contract costs 100 credits.
FAQ
Do I need a US phone number to send a fax to the US?
No. You only need the recipient's US fax number. You do not need your own number.
Can I fax to the IRS?
Yes. Enter the IRS fax number for the specific notice or form type. IRS fax numbers vary by form and processing center — always use the number printed on the IRS notice you received or published on irs.gov for the specific form category.
How long does it take for a fax to reach a US number?
Delivery time depends on the receiving line. Busy or unavailable destinations can take longer or fail. Wait for the final delivered or failed status, and obtain any separate acknowledgment required by the recipient.
Is there a size limit for faxing to the US?
The upload limit is 25 MB per file. The number of pages that fit depends on the PDF's scans, images, and compression; the page count and cost are shown after upload.
How are uploaded documents handled?
Review the current Privacy Policy before sending personal or confidential information. Do not rely on this destination guide as a data-retention statement.
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