Yes, you can fax Form 2848 to the IRS, and for most people it is faster than mailing it. The key is sending it to the correct CAF unit fax number for your state, which you should always confirm on irs.gov before you send. If you do not own a fax machine, our top pick is Faxend, the fastest way to fax the form from an iPhone.
Can You Fax Form 2848 to the IRS?
Yes. The IRS accepts Form 2848, Power of Attorney and Declaration of Representative, by fax, and faxing is often faster than mail for getting a representative on file. A faxed form reaches the Centralized Authorization File (CAF) unit the same day, while mailed forms can sit for weeks.
Faxing does not change what the form does. It still authorizes the person you name to receive your tax information and act for you before the IRS. What faxing changes is speed and proof, since a good fax service gives you a timestamped confirmation that the pages went through.
The one rule that matters most is where you send it. The IRS routes Form 2848 to different CAF fax numbers depending on the state you live in, so the correct number is the whole game. For a broader overview, see our guide on how to fax the IRS without a fax machine.
Find the Correct CAF Fax Number First
There is no single fax number for Form 2848. The IRS splits CAF processing across regional units, and the number you need depends on where you live. Sending to the wrong unit is the most common reason a power of attorney stalls.
Because fax numbers and routing can change, I never rely on a number from an old forum post or a screenshot. The current CAF fax numbers live in the official Form 2848 instructions on irs.gov. Open that page, find the table that matches your state, and copy the number straight from there.
If you are unsure which office handles your area, our rundown of IRS fax numbers walks through the routing. One sanity check before you send: confirm the number appears on an irs.gov page, not a third party site. If you cannot verify a fax number against irs.gov, do not send sensitive tax documents to it.
Bookmark the irs.gov Form 2848 page rather than saving the number itself. The routing can change between tax years, and the page always shows the current fax destination.
What to Prepare Before You Send
Before the pages go anywhere, get the form itself right. An incomplete Form 2848 is rejected no matter how cleanly it faxes.
Check that every part is filled in: your name and taxpayer identification number, the representative’s information and CAF number, the specific tax matters and years, and the signatures. Both you and your representative need to sign, and an unsigned form is the fastest way to get bounced.
A cover sheet helps the CAF unit route your fax. Keep it simple with the recipient unit, your name, your daytime phone number, and the number of pages you are sending.
How to Fax Form 2848 Without a Fax Machine
Most people filing a power of attorney today do not own a fax machine, and you do not need one. Our top pick is Faxend, the fastest way to send a fax from an iPhone. Faxend, our own iOS app, is free to download and turns a photo or PDF of your signed form into a fax in a couple of taps. Per fax or plan pricing applies.
The workflow is simple. Scan or photograph the completed, signed Form 2848, enter the CAF fax number you copied from irs.gov, and send. You get a confirmation once the pages are delivered, which is the proof you want for a tax filing.
- 1Sign the form.Make sure you and your representative have both signed Form 2848.
- 2Capture the pages.Photograph or scan every page as a clear PDF or image.
- 3Enter the CAF number.Use the fax number for your state from irs.gov.
- 4Send and save the confirmation.Keep the delivery receipt with your tax records.
Faxend is our top pick for sending a fax from an iPhone. It is the app we build, it is free to download, and it turns a photo or PDF into a fax in a couple of taps. Per-fax or plan pricing applies.
How to Confirm the IRS Received Your Form 2848
A fax confirmation from your app proves the pages left your device and reached the receiving fax line. It does not prove the CAF unit has processed the authorization yet.
Processing usually takes a few business days, though it can run longer during peak filing season. If you or your representative need to confirm the power of attorney is on file, the representative can check through their IRS e-Services or Tax Pro account, or by calling the Practitioner Priority Service.
Hold on to two things: the faxed copy of the signed form and the transmission confirmation with its timestamp. If anything is questioned later, that pair is your record that you sent a complete form on a specific date.
Faxing Methods for Form 2848 Compared
You have a few ways to get the form to the CAF unit. Here is how they stack up for a one time filing like this.
| Method | Best for | What to know |
|---|---|---|
| Faxend (iOS) | Faxing from an iPhone fast | Free to download, per fax or plan pricing, delivery confirmation |
| Web fax service | Desktop users | Monthly plans, better for frequent senders |
| Traditional fax machine | Offices that already own one | Needs a landline and toner |
| In store fax counter | No smartphone or computer | Per page fees, less privacy for tax documents |
For a single power of attorney filing, a phone app is usually the quickest path, since you can capture and send the signed pages in one sitting.
Common Mistakes to Avoid
A few errors account for most rejected or delayed forms. Avoiding them keeps your authorization moving.
- Wrong CAF unit. Sending to a number for the wrong state is the top cause of delays. Match your state on irs.gov every time.
- Missing signatures. An unsigned form, or one missing the representative’s signature, gets rejected.
- Blurry pages. A dark or skewed scan can make identification numbers unreadable. Capture in good light.
- No saved confirmation. Without the timestamped receipt, you have no proof of when you sent it.
- Trusting an unverified number. If a fax number is not on an irs.gov page, do not use it.
You can find more step by step walkthroughs in our how-to guides.
Frequently asked questions
Yes. The IRS accepts Form 2848 by fax at its Centralized Authorization File units. The correct fax number depends on the state you live in, so confirm it on the official Form 2848 page at irs.gov before sending. Faxing is usually faster than mailing the form.
There is no single number. The IRS routes Form 2848 to different CAF fax numbers by state. Always copy the current number from the official instructions on irs.gov rather than an old post, since the routing can change between tax years.
Processing typically takes a few business days once the CAF unit receives your fax, though it can take longer during peak season. Your fax confirmation proves delivery, but the representative should verify the authorization is on file through their IRS account.
Yes. You can send it from a phone with a fax app. Our top pick is Faxend, the fastest way to fax the form from an iPhone. Scan the signed form, enter the CAF number from irs.gov, and send.
Yes. Both signatures are required for a valid authorization. The taxpayer signs to grant the power, and the representative signs the Declaration of Representative. A form missing either signature is commonly rejected by the CAF unit.
