How do I send a single fax?

Upload the file, enter the fax number, and pay once. A single use fax service is for one document, such as an IRS form, clinic paperwork, or a signed contract, without an eFax-style monthly bill. SingleFax starts at $0.99, or add a 30-day fax number if someone needs to fax you back.

What file types can I fax?

PDF, Word, Excel, PowerPoint, RTF, plain text, and images (JPEG, PNG, TIFF, GIF, WebP, BMP, HEIC). We convert to PDF before sending. Email attachments are limited to 10MB raw; MCP base64 is 10MB; the website accepts up to 10 files / 250MB total / 100 pages. You receive faxes as a PDF.

How secure is SingleFax?

We use bank-grade 256-bit SSL encryption to secure your connection to SingleFax. All your details, including your uploaded files, are sent over an encrypted connection. Your faxes are stored securely and encrypted in your personal dashboard, which you can access anytime via a secure, passwordless magic link sent to your email. You can permanently delete your faxes at any time.

Can I send and receive large faxes?

Yes. Retail sends support up to 100 billable pages per fax. Domestic base pricing is $0.99 for up to 10 pages, then about $0.08 per additional page. Destination adjustments may apply. For larger documents, email info@singlefax.com.

Can I send a fax by email?

Yes. Email a supported document to send@fax.delivery with the fax number in the subject. PDF, Word, Excel, PowerPoint, RTF, plain text, and images are converted to PDF before sending. Same $0.99 pricing, credits send instantly, otherwise we email a payment link. See how email-to-fax works.

How much does it cost to send or receive?

Sending starts at $0.99 for up to 10 billable pages (then ~$0.08/page, cap 100). A free 24-hour fax number is available with a verified email (25 received pages / 30 days). A 30-day fax number is $4.99 (first received fax included; extra received faxes from $0.99, same page extras as send). Plans from $7.90/mo or $79/yr. Optional lifetime from $97.

When am I charged for sending a fax?

US, Canada, and Puerto Rico are pay on success. We place a temporary preauthorization hold and capture it only if the fax is delivered. If that delivery fails, we release the hold. Other destinations, and some high-cost US numbers, are charged when we send. That charge stays if delivery fails.

Are incoming faxes searchable?

Yes on paid numbers (30-day, lifetime, and monthly numbers). You get a searchable transcript and key fields (names, dates, document type) in the dashboard. Non-HIPAA email uses a short summary. 24-hour free numbers are one-tap Make searchable, not automatic. HIPAA Secure transcripts stay in the audited Secure dashboard after an electronic BAA; they are never emailed. Extracted fields are assistive. Verify them against the fax PDF.

What happens if I send a fax to the wrong number?

Please double-check the fax number before sending. Once a fax is successfully delivered, it cannot be recalled and telecom carrier fees are incurred, so we cannot refund deliveries to the wrong number. For US, Canada, and Puerto Rico, a failed delivery releases the preauthorization hold. For other destinations and some high-cost US numbers, the charge is taken when we send and stays if delivery fails.

What happens if the recipient's fax machine is turned off or not working?

We retry most delivery failures up to 4 attempts over ~10 hours (immediately, then 1h / 3h / 6h). If the line is busy or nobody answers, we retry sooner, starting at 5 minutes, up to 15 times. Please check your email for status updates and ask the recipient to check their machine. If the fax ultimately cannot be delivered, we release the preauthorization hold, you are only charged when the fax is successfully delivered.

US, Canada, and Puerto Rico faxes are pay on success: failed delivery releases the hold. Other destinations and some high-cost US numbers are charged when we send, and that charge stays if delivery fails. Delivered faxes are not refunded. Fax numbers and plans have a 30-day money-back window. See our refund policy.

I have a question that wasn't answered here

Please contact us at info@singlefax.com. We'll be glad to help.

Send a single fax.
From $0.99.

Up to 10 pages from your phone, computer, or email. No subscription required.

Send a fax Get a number · $4.99

Most US, Canada, and Puerto Rico faxes are charged on delivery. Other destinations and high-cost prefixes are charged when dialing starts; your quote shows the terms.

Lifetime numbers Company plans IRS filings

SingleFax inbox with sent and received faxes and delivery status

Choose what you need

Send a fax

From $0.99 per fax

Up to 10 pages. Upload a document and see your destination quote before paying.

Send a fax

30-day number

$4.99 once

A dedicated US or Canadian number. First received fax included, with PDFs sent to your email.

Get a number

Lifetime number

$97 once

Keep a permanent number with no monthly rental fee. Starter credit and a searchable inbox included.

View lifetime numbers

Company plans

From $7.90 /month

A dedicated number with pooled send and receive pages. Business supports teams and API access.

View plans

How it works

1
Upload your document
PDF, Word, Excel, or a photo. We prepare it for faxing.
2
Enter the fax number
Choose the destination, add an optional cover page, and check the quote.
3
Send and track delivery
Follow progress and receive a transmission receipt by email.

Fax the PDF already open in Chrome

The free extension attaches a public PDF or a file you choose. Set the destination and pay on SingleFax.

How the extension works

Add to Chrome

Fax for work and everyday paperwork

IRS forms

Guided forms, the matching IRS fax destination, and a transmission receipt.

EIN · Form SS-4 Form 5472 Form 2553 Form 7004

HIPAA Secure

Secure document storage and an electronic BAA for healthcare faxing.

HIPAA fax Compliance & BAA

Signed documents

Send signed paperwork with a cover page and timestamped delivery confirmation.

Send a document Cover sheets

Fax from anywhere

Use your browser, email, or phone without a fax machine or phone line.

Online fax Email to fax Free 24-hour number

What customers say

Google review

"SingleFax made the whole process surprisingly easy. I needed to fax an EIN application to the IRS and also have a temporary fax number so the IRS could send the EIN back. I was able to get a 30-day receiving number, send the application online from my computer, and avoid signing up for a monthly fax service I didn’t need."

James C. Baker

Church Bunnies · @churchbunnies

Google review

"Fantastic service easy to use I needed to fax some medical documents. Everything went smoothly, easy to use and I did all from my computer."

Jose

Google review

"Easy to use and offered very reasonable service charges. The process was smooth, efficient, and hassle-free. It saved me both time and money, and I was very satisfied with the overall experience. I would definitely recommend this service to others looking for a reliable and cost-effective solution."

Babak Aghakhani

Send a single fax.From $0.99.

Choose what you need

Send a fax

30-day number

Lifetime number

Company plans

How it works

Upload your document

Enter the fax number

Send and track delivery

Fax the PDF already open in Chrome

Fax for work and everyday paperwork

IRS forms

HIPAA Secure

Signed documents

Fax from anywhere

What customers say

Common questions

Send a single fax.
From $0.99.