Yes. Pay-per-fax services let you upload a document, enter a fax number, and pay once for that single fax. There's no monthly plan, no contract, and nothing to cancel later. A subscription mainly makes sense if you fax often or need your own fax number to receive faxes.
If you've ever searched "send one fax online," you've probably seen the same pattern: a big "Free trial" button, a credit card form, and a monthly plan that starts quietly a few days later. For people who fax a few times a year, that's frustrating. Here's how to avoid it.
Why do so many fax services require a subscription?
Most well-known online fax brands are built for businesses that send and receive faxes every day. Their plans usually bundle a dedicated fax number for receiving faxes, a monthly allowance of pages, user accounts, storage, and integrations. That's useful for a busy office. But if you only need to send a single document to your doctor, your landlord, or a government agency, you're paying for features you won't use.
What is a pay-per-fax service?
A pay-per-fax (or "one-time fax") service charges you only for the fax you send. You typically:
- Upload your document (a PDF works best).
- Enter the recipient's fax number.
- Pay a set price for that one fax.
There's no recurring billing, because you never sign up for a plan. sendfaxfast.com works this way. You don't need an account or a subscription, and the price depends only on the number of pages:
| Fax type | Pages | Price (USD) |
|---|---|---|
| Short fax | 1–5 | $2.49 |
| Long fax | 6–20 | $3.49 |
| XL fax | 21–40 | $4.99 |
| XL Fax Plus | 41–100 | from $6.24 |
Prices per fax as of October 2026, the same for the US & Canada (+1), Australia (+61), New Zealand (+64), and 39 more supported countries. XL Fax Plus costs $4.99 plus $1.25 for each started 10 pages beyond 40. Maximum 100 pages per fax. Single faxes need no account and no subscription.
Subscription vs. pay-per-fax vs. free trial vs. in-store: which is right for you?
| Pay-per-fax | Monthly subscription | "Free trial" of a subscription | Store (UPS, FedEx, Staples, Officeworks) | |
|---|---|---|---|---|
| Account needed | Depends on the service (sendfaxfast.com: no) | Yes | Yes | No |
| Recurring charges | No | Yes | Yes, if you don't cancel in time | No |
| Receive faxes | Usually not | Usually yes (own number) | Usually yes | Some stores |
| Best for | Occasional senders | Daily or weekly faxing | Testing a plan you intend to keep | People without a scanner or phone |
| Main downside | Price per fax adds up if you fax a lot | You pay even in months you don't fax | Easy to forget to cancel | A trip to the store; prices vary by location |
For a deeper look at store prices, see How much does it cost to fax at UPS, FedEx, Staples, or Officeworks?
What's the catch with free fax trials?
Free trials aren't automatically bad, but they're designed to turn into paid plans. The U.S. Federal Trade Commission (FTC) warns that "if you don't cancel on time, you'll probably be charged," and notes that you usually have to give a credit card number for a "free trial" (FTC Consumer Advice).
The FTC's advice before you sign up:
- Find the terms: what you're agreeing to, how long the trial lasts, and how and when to cancel.
- Watch for pre-checked boxes that allow ongoing charges.
- Mark your calendar with the cancellation deadline.
- Monitor your card statements after you sign up.
If you only need one fax, skipping the trial entirely removes all of these risks.
What about completely free fax sites?
Some websites let you send a limited number of pages for free. They're usually funded by ads, paid upgrades, or page limits. They can work for a short, non-sensitive document. For anything personal, read the privacy policy first and think about who will handle your file. The IRS reminds taxpayers who use online fax services to "understand its privacy and security policies" (IRS.gov), which is good advice for any fax.
How do I send a one-time fax step by step?
- Get your document ready. Scan paper pages with your phone. On iPhone, the Notes app has a free scanner (Apple Support); on Android, use Google Drive (Google Drive Help). Save as PDF.
- Check the fax number. Copy it exactly from the letter or form. Include the country code: +1 for the US and Canada, +61 for Australia, +64 for New Zealand.
- Count your pages, including any cover sheet. That tells you which price tier applies.
- Go to sendfaxfast.com, enter the number, upload the PDF, and pay for that one fax.
- Keep your records. Save the PDF you sent and your receipt. For important documents, call the recipient to confirm it arrived. Learn more in How do I know my fax went through?
Want a phone-only walkthrough? See How to fax from your iPhone without a fax machine.
When is a subscription actually worth it?
Be honest about how often you fax. A subscription may be the better deal if you send faxes every week, need to receive faxes at your own number, need team accounts or integrations with other software, or work in a regulated field and need specific contracts (for example, a business associate agreement under HIPAA). Our HIPAA and online fax guide explains what that means. If none of these apply, pay-per-fax is usually simpler.
Does sendfaxfast.com offer a plan for receiving faxes?
Yes, as an option. Sending a single fax never requires a plan. If you also want to receive faxes, you can sign up for a monthly plan that includes your own fax number. Incoming faxes arrive as PDF attachments in your email inbox, and each plan includes a set number of outgoing faxes per month. With monthly billing, plans start at $49.99 a month (semiannual and annual billing cost less per month). Plans renew automatically and can be canceled anytime, effective at the end of the billing period. Details are on the sendfaxfast.com plans page.
Frequently asked questions
Can I send a fax without creating an account?
Yes, with some services. sendfaxfast.com doesn't require an account: you enter the fax number, upload your document, and pay for that fax.
Is a one-time fax more expensive than a subscription?
Per fax, it can be. But a subscription charges you every month whether you fax or not. If you send a handful of faxes a year, paying per fax usually costs less overall.
Will I be charged again later?
Not with a true pay-per-fax service, because there's no plan to renew. With a "free trial," you may be charged automatically when the trial ends unless you cancel on time, as the FTC explains.
Can I receive a fax without a subscription?
Usually not. Receiving faxes requires a fax number assigned to you, which is why it almost always comes with a monthly plan. sendfaxfast.com works the same way: sending a single fax needs no account or subscription, and if you want to receive faxes, you can add an optional plan with your own fax number. Incoming faxes then arrive as PDFs by email.
How many pages can I send in one fax?
With sendfaxfast.com, one fax can have up to 100 pages, at the same price for every supported country. Faxes with 41 to 100 pages (XL Fax Plus) start at $6.24.