Same-day transmission to IRS toll-free lines

Fax your tax return to the IRS.
No subscription. $2.49 flat.

Upload a PDF, pick your form and state — we route it to the correct IRS fax number and email you a transmission report. Built for single-member LLC owners who just need one fax, not a fax machine.

Send a fax now Find your form's fax number

Up to 25 pages Delivery report by email No account needed

Lowest flat-rate IRS fax — guaranteed.

Send your fax in 2 minutes

We pick the verified IRS fax number from your form and state — you never dial anything.

Which IRS form are you sending?

State of registration

This determines which IRS service center receives your fax.

Foreign entity / taxpayer address outside the U.S.

I'm physically outside the United States right now

This is a business (entity) refund trace

Your document (PDF — add several, we merge them; up to 25 pages)

Drag & drop your PDF here Tap to choose your PDF or browse files · up to 25 pages

Signed and completed. We add a cover sheet and convert it to fax-standard TIFF automatically.

Your email *

Your transmission report (proof of filing) is delivered here. No account, no password.

+$1.99 — certified PDF report with content attestation
Proof of what was sent, not just that something was sent: form, page count, digital fingerprints of the exact document — verifiable with us for 7 years. The Post Office can't tell anyone what was in your envelope. We can.

+$0.49 — 30-day IRS-lost protection
IRS units occasionally can't locate a fax they received. If that happens, one click on your status page re-transmits it free — no re-upload, no re-payment.

Pre-transmission compliance check Coming soon
We check your form against the current IRS instructions before sending — signature present, required boxes checked, current revision — so it doesn't bounce weeks later.

Secure checkout · One-time payment · No subscription

How it works

1. Upload your PDF

We check the file, count pages and verify it will render cleanly as a fax.

2. We route it

Form + state resolve to the verified IRS fax number — CAF units, service centers, regional refund units.

3. We transmit

Cover sheet + your document, converted to fax-standard TIFF and sent over telecom-grade lines with automatic retry.

4. You get proof

A transmission report lands in your inbox: destination, date/time, pages transferred, result.

Simple pricing. No subscription.

You need one fax, once a year. Why would you pay monthly?

One fax

$2.49

flat, up to 25 pages

Automatic IRS number routing
Cover sheet included
Transmission report by email
Optional +$1.99: certified report with 7-year retention & verification
Optional +$0.49: 30-day IRS-lost protection — free re-transmission

Send a fax

Done-for-you

$99+

Form 5472 + pro forma 1120 package

Reviewed & signed by an Enrolled Agent
We prepare the pro forma 1120 & 5472
Deadline tracking & extension (7004) if needed
Filed by fax with certified proof

Learn more about the 5472 package

Who files by fax in 2026? More people than you'd think.

Foreign founders of US LLCs

No SSN means no online EIN and no e-file for the 5472+1120 package. Fax is your filing channel, not a fallback.

Form 5472 → · SS-4 → · 8802 →

New S corporations

Form 2553 has a ~75-day window. A dated fax report is the cleanest proof you made it.

Form 2553 →

CPAs, EAs & payroll firms

2848s, 8821s and batches of 8655s to the CAF and RAF units — flat price per transmission, report per client file.

2848 → · 8821 → · 8655 →

Identity theft & urgent cases

Form 14039 affidavits, Taxpayer Advocate requests, refund traces — when it's urgent, mail is not an option.

14039 → · 911 → · 3911 →

Accounting method & disclosures

Duplicate 3115 copies and OTSA filings where the IRS sends no receipt — your fax log is the evidence.

3115 → · 8886 →

Not sure your form faxes?

Some forms are mail-only (looking at you, 8832). Every form page spells out the real rules.

Browse all forms →

IRS fax numbers, form by form

Verified routing rules, deadlines and FAQ for every form we transmit.

No SSN or ITIN? You can still get an EIN.

Foreign founders file Form SS-4 by fax and the IRS faxes the EIN back in about 4 business days. Our step-by-step guide walks through every line.

Read the EIN guide Fax SS-4

855-887-7734 (Kansas City)

8 regional numbers, routed by state

(mail-only — see why)

Form SS-8 (worker status)

855-242-4481

Form 14157 (preparer complaint)

855-889-7957

IRS notice replies (CP162, CP2000 …)

printed on your notice — top corner of page 1 or the response stub

Where these numbers come from

Every fax number here is taken from the current IRS form instructions or an IRS Where-to-File page, and re-checked against them — last verified 2026-07-19. The IRS changes numbers without notice, so each page links the exact source it used. The primary sources are:

IRS Forms & Instructions — each instruction booklet carries its own Where-to-File section
IRS Where to File — service-center routing, listed by return type
IRS — Get an Employer Identification Number — the EIN routes, including the fax option

Frequently asked questions

A flat $2.49 per fax, up to 25 pages, with no subscription and no account. Optional add-ons — a certified delivery report or having us receive the IRS's fax reply — are shown at checkout.

Dozens, including Form 5472, SS-4 (EIN), 2553, 7004, 2848, 8821, 4506-T, 8655 and more. We route each one to the correct IRS fax number for your form and, where it matters, your state.

No. Upload a PDF and we transmit it to the IRS from our secure fax lines. You get a delivery report by email — nothing to install.

You get a transmission report by email showing the exact IRS fax number your document was sent to and the delivery result, so you have dated proof of filing.

Yes — many IRS forms can be filed by fax, and for some (like an SS-4 EIN application) the IRS replies by fax. A few forms are mail-only; each form's page tells you which and why.

Documents are encrypted in transit and no account is required. Every receiving fax number is verified against the current IRS form instructions.