This page is for the person who faxes a signed form to a landlord in March, a document to a clinic in July, and then nothing until next year. If that’s you, the standard advice — “pick a plan” — is quietly wrong. A $7-a-month subscription is $84 a year, and you might be sending twelve pages. The right product for genuinely occasional faxing is either free or billed per fax, and it exists.
The one-line answer: to send only, use Dropbox Fax’s pay-per-fax at $0.99 a fax or Fax.Plus’s free 10-page tier, and skip subscriptions entirely. The moment you need to receive faxes at a stable number, that changes — a permanent inbound number is the one thing nobody gives away, and a small monthly plan becomes the cheaper, saner choice.
So before you compare anything, answer one question: do you need to send, or send and receive? The two paths barely overlap.
Sending only: three ways to pay nothing (or almost nothing)
If you just need documents to leave your hands and land on someone’s fax machine, you have real no-subscription options.
Dropbox Fax is the standout. New accounts get 5 free pages, and after that it sells single faxes at $0.99 for a document of up to 10 pages. No other provider we track will sell you one fax that cheaply. There’s no monthly commitment — you pay when you actually send. The catch is that the 5 free pages are a one-time quota, not a monthly refill, and there’s no mobile app; it’s web-only.
Fax.Plus runs the cleanest free tier: 10 pages, no credit card, no watermark, with genuinely good apps on every platform. It’s send-only — no inbound number — but for someone who fires off a page or two a year and wants a polished experience, it can go a long way before you ever reach for your wallet.
CocoFax hands new signups 10 free pages, the most generous one-time allotment here. Like Dropbox’s, it doesn’t reset, so treat it as a trial rather than a recurring budget.
Stack these and a light sender can go a very long time subscription-free: burn the free pages first, then drop to Dropbox’s $0.99-per-fax for anything after. If most of what you send is a page or two at a time, that’s a few dollars a year.
A worked example: how many faxes before a plan wins
Say you send three short faxes in a typical month — a lease page here, an insurance form there, each under ten pages.
- Pay-per-fax (Dropbox): 3 × $0.99 = $2.97/month, and $0 in the months you send nothing.
- Cheapest subscription (CocoFax Lite): $4.99/month on annual billing, whether you use it or not — that’s $59.88 committed up front.
Pay-per-fax wins, and it isn’t close. Now push the volume up. At five faxes a month you’re paying 5 × $0.99 = $4.95, essentially a tie with CocoFax Lite’s $4.99 — except the subscription also throws in a real inbound number and a 60-page pool. That’s the break-even: below five faxes a month, stay subscription-free; at or above it, a cheap plan is the better deal. Our fax price calculator will run this against your actual page count if you’d rather not do the arithmetic.
Receiving is the part you can’t dodge
Here’s the wall every occasional faxer hits. Sending without a subscription is easy. Keeping a permanent phone number that receives faxes is the one thing no provider gives away, because a real DID number is a recurring cost to them every month you hold it.
The cheapest permanent inbound number we track is CocoFax Lite at $4.99/month on annual billing, which includes 60 pooled pages and a real inbound US or Canada number. If you only ever receive the odd fax and don’t touch regulated data, that’s the floor. But read the next section before you click buy.
The annual-billing trap
That $4.99 headline hides a fork. CocoFax Lite is $4.99 only if you prepay a year. Billed month-to-month it’s $9.99. And at $9.99 a month, it’s no longer the cheapest number — Fax.Plus Basic is $9.33 monthly and gives you 200 pooled pages instead of 60, with a 10¢ overage instead of CocoFax’s punishing 20¢. So the ranking flips depending on how you pay:
| Need | Cheapest option | Price | What you get |
|---|---|---|---|
| Send one-off, no number | Dropbox pay-per-fax | $0.99/fax | Up to 10 pages per fax |
| Permanent number, annual OK | CocoFax Lite | $4.99/mo (annual) | 60 pages, real inbound number |
| Permanent number, month-to-month | Fax.Plus Basic | $9.33/mo | 200 pages, better overage |
| One busy month, then cancel | Fax.Plus Basic | $9.33/mo | Send + receive, cancel anytime |
The lesson: the “cheapest” plan changes the instant you refuse to lock in a year. Decide your commitment tolerance first, then pick.
The one-month subscription play
There’s a middle path that suits occasional faxers better than most realize: subscribe for the single month you need, then cancel. Monthly plans cancel anytime, so a tax-season-only or closing-week-only subscription is entirely legitimate.
For that job you want the cheapest month-to-month plan that also receives. Fax.Plus Basic at $9.33 is the pick — a real number, 200 pooled pages, and you cancel the day you’re done. eFax Personal ($18.99, 200 pages) is worth a mention only because it frequently discounts the first month promotionally and carries no annual contract, but page-for-page it’s the priciest of the majors. Nextiva vFax Essential is $9.95 month-to-month for 500 pages if your faxing is US/Canada only and you don’t mind a dated interface.
The only rule: diarize the cancellation. A “one month” plan you forget to cancel is just an expensive subscription with extra steps.
Edge cases and gotchas
- Free pages usually don’t refill. Dropbox’s 5 and CocoFax’s 10 are one-time. Fax.Plus’s 10 is a standing plan, but send-only.
- Cheap tiers are often send-only. Fax.Plus’s free tier and iFax’s $12.49 Basic plan can’t receive at all. If you expect a reply, you need a number.
- Pay-per-fax has a page cap. Dropbox’s $0.99 covers up to 10 pages; a longer document costs more, so split large jobs or check the price before sending.
- Separate send/receive pools bite occasional users. MyFax Home Office ($8.25/mo annual) splits its allowance into 100 send and 100 receive pages — and unused receive pages never cover extra sends. Worse for light users: inbound junk faxes count against your receive pool.
- The cheapest number has no signed BAA. CocoFax’s HIPAA/GDPR language is self-attested; there’s no signed Business Associate Agreement. Never send patient data over it. If you handle PHI even occasionally, read HIPAA fax pricing and budget for SRFax or Documo instead.
- US-only coverage is common at the bottom. Nextiva vFax, MetroFax, and CocoFax sell US and Canada numbers only. If you need an overseas number, Fax.Plus and eFax are the two that reach further — though CocoFax can still send to 180+ countries from its US line.
Bottom line
For pure occasional sending, don’t buy a subscription at all. Exhaust the free pages from Fax.Plus and CocoFax, then fall back to Dropbox Fax at $0.99 a fax — the cheapest single-fax rate anywhere. A light sender can run for years and spend pocket change.
If you need to receive at a permanent number and you’re comfortable prepaying a year, CocoFax Lite at $4.99/month is the floor — just respect the 60-page cap and the 20¢ overage, and keep it away from anything regulated. If you’d rather not commit to a year, Fax.Plus Basic at $9.33 month-to-month is both cheaper than CocoFax’s monthly rate and far roomier. And for a single busy stretch, subscribe for one month and cancel — it’s the honest answer more often than the industry lets on.
Still unsure where your volume lands? Run your real numbers through the calculator, or see everything side by side on the full comparison. For the broader picture on what these services actually cost once the add-ons land, our guide to online fax hidden fees and the roundup of the best cheap online fax services are the natural next reads.