How to Fax Congress

Send a Fax to Your Representative

To send a signed letter, petition, or other formal correspondence to Congress, fax is still an option for many congressional offices. This guide explains how to find official congressional fax numbers, why people continue to fax Congress, and how to send a fax online with Faxaroo.

Can You Fax the US Congress?

Yes. Most members of the House of Representatives maintain a fax number, and many congressional offices accept faxes for constituent communications. Once you've confirmed the correct fax number, you can send your documents with an online fax service like Faxaroo, and fax without a fax machine.

Fax numbers can change when offices relocate or update their contact information, so always verify the number on the member's official website before faxing. 

Why Do People Still Fax the US Congress?

People continue to fax Congress for several practical reasons. Fax is commonly used for the following types of congressional correspondence:

• Official written correspondence - A fax provides a formal, page-based record that some congressional offices may use when handling official documents.

• Signed letters and petitions - Fax transmits signatures as part of the document image, so signed petitions and letters arrive exactly as intended. 

• Supporting documents and attachments - Reports, legal documents, and other multi-page attachments can be sent together as a single fax. 

• Time-sensitive legislative correspondence - When timing matters, fax can be used to send letters or supporting documents to a congressional office.

How to Find US Congress Fax Numbers

The best place to find fax numbers for members of Congress is on official government websites. Before sending your fax, verify the number on your representative's official website to make sure it's up to date.  

• Find your representative. You can visit the directory of representatives or House.gov and use the Find Your Representative tool by entering your ZIP code.  While not every representative publishes a fax number, many offices still list one on their official website. We've included the congressional fax numbers we found below for your convenience.

• Open the representative's official website. From the search results, click your representative's official website. 

• Look for the fax number. Check the Contact page first. If you don't see a fax number there, look under the Office Locations page, as Washington DC office, and district offices often have separate contact details. 

• Verify the fax number. Avoid relying solely on third-party directories, as fax numbers can change when offices relocate or update their contact information. 

• Send your fax with Faxaroo. Once you've confirmed the correct fax number, upload your document to Faxaroo, enter the fax number, and send your fax online in minutes.

Congress Fax Numbers

Last updated: July 27, 2026. The congressional fax numbers on this page are accurate to the best of our knowledge as of this date. As office contact information may change, we recommend verifying the fax number with the representative's official office before sending important documents.

How to Send Fax with Faxaroo in 3 Easy Steps!

Once you've found the correct congressional fax number, Faxaroo lets you send your documents from a browser, no fax machine or dedicated phone line required.

1. Upload your fax document to our secure web portal by selecting the document from your device or using our easy drop and drag feature. Faxaroo supports PDF, PNG, GIF and JPEG – so you can easily take a photo of the document using your mobile phone and upload it to Faxaroo within seconds!   

2. Enter the fax number. Be sure to include the area code followed by the fax number.    

3. Select your payment method. Once you’ve entered the fax number, the final step is to confirm payment. Faxaroo accepts payment via Visa or Mastercard.  

Once you’ve entered your payment details, hit send and we’ll take care of the rest!

Why Faxaroo is the Best Choice for Faxing Congress

Many people search for a free fax to Congress, but free fax services often come with limitations such as page caps, file size restrictions, advertisements, or unreliable delivery. If you're sending an important letter, petition, or supporting documents to your US representative, a reliable online fax service like Faxaroo can help ensure your documents are sent successfully. Here's why many users choose Faxaroo instead:

• No sign up required: Makes faxing fast, no logins and passwords required - users don't have to remember yet another login.    

• Pay as you go: No subscriptions, meaning users aren’t required to pay monthly fees or worry about canceling after sending just one fax.   

• Security: Your documents are handled with care and confidentiality. Faxaroo is ISO 27001 certified, encrypted and processed via TLS encryption for ultimate security.    

• Accessibility: Faxaroo is compatible with all devices - smart phones, tablets, and computers, allowing you to send faxes fast while on the go.  It's also a 24 hour fax service which means you can send a fax anytime, day or night, without needing a physical fax machine.

• Environmentally Friendly: Reduce paper waste with Faxaroo's digital faxing, contributing to a greener planet.    

• Reliability: Faxaroo provides instant fax confirmation of fax delivery via email, giving you peace of mind that your documents have reached their destination.    

• Low-cost fax: With Faxaroo, there are no hidden fees. You only pay for the pages you send.    

• Compatibility: Faxaroo supports multiple file formats including PDF, PNG, GIF, JPEG.        

• Global Reach: Send faxes internationally to destinations like the Australia, Canada, Japan, and Germany.   

• Send as many pages as you need: User can send a large fax (Up to 500 number of pages). Most free fax options restrict sending to a few pages per day or make users upgrade plans to send more. 

Fax Congress with Faxaroo Today

If you want to send a signed letter, petition, or supporting documents to your US representative, fax is still a practical option. Congressional offices receive a large number of emails every day, so a fax gives you another way to make sure your documents reach the office.

With Faxaroo, you don't need a fax machine or landline. Just upload your document, enter the verified fax number, and send your fax.