
You can send a fax without signing up for a monthly or annual plan. With Fax.Plus, stay on the Free plan and use any remaining free allowance, or buy prepaid credit when you need more. The minimum credit purchase is $10, unused credit does not expire, and a manual top-up does not create a subscription.
If you only need to send one form or a small packet of documents, check the destination and the amount you will pay before choosing a plan.
Services describe occasional faxing in different ways. What matters is the payment you authorize and whether anything renews afterward.
| Option | How it works | What to check |
|---|---|---|
| Free sending allowance | You send within a limited allowance. | Whether the allowance renews, destination restrictions and billable usage. |
| Prepaid credit | You add money to an account and use the balance for sending. | Minimum purchase, credit expiration and any automatic top-up setting. |
| Pay per fax | You pay for an individual transmission or packet. | Page limits, the checkout total and how failed attempts are billed. |
Fax.Plus's paid no-subscription route uses prepaid credit on the Free plan. You need an account, but you do not need to subscribe to a paid plan to use that route. See the official pay-as-you-go terms.
Use the fax number supplied by the recipient's official website, current form or correspondence. Confirm the correct department and enter the full number, including its country code.
Open the final document and check every page, signature and completed field. Count the whole packet, including any cover sheet or supporting documents. On the Free plan, the combined fax must stay within 30 pages and 30 MB; adding credit does not remove those limits. See the Free-plan sending limits.
Preparing a specific submission? Use our checklists for insurance claim documents, a medical records request or mortgage assistance documents before uploading your packet.
Open the Fax.Plus web app or the official mobile app. Sign in to your existing account, or create a Free account if you do not have one.
The Free plan is not a time-limited trial. After mobile verification, eligible users receive a one-time allowance of 10 sending pages. It does not renew each month. If you have already used it, continue with your existing account and check your credit balance. See our free fax overview and the allowance requirements.
Use the Fax.Plus rate checker for the recipient's exact fax number. Destination and transmission duration affect usage, so eight document pages are not a guaranteed eight billable pages or a fixed total price.
Some high-rate destinations require a paid plan even when you have credit. Check the destination before purchasing credit for a specific fax. If the app asks you to upgrade, confirm whether the reason is destination eligibility or a feature your task requires.
In the web app, go to Settings → Plan & Billing → My Credit → Add Credit. Choose the amount you want to purchase and review it before paying. The documented minimum is $10 through a custom amount; the preset choices may start at $20. Follow the current add-credit instructions if the interface differs.
The amount you purchase is added to your balance. Your fax then uses credit from that balance, and the unused portion remains available for future sending. For a single manual purchase, keep automatic credit top-up disabled.
Go to Send Fax, enter the verified recipient number and attach your documents. Include a cover sheet if the recipient requires one, then review the destination and page order before sending. The online fax tutorial covers the sending steps in more detail.
Wait for the final status. Some unsuccessful attempts can still consume credit if the call connects, so check the result before submitting another copy. See how failed attempts are billed.
Open the fax in Sent and save its confirmation report. Keep it with your document and any reference number the recipient gave you.
A successful transmission confirms delivery to the receiving fax system. It does not establish that the right department reviewed your paperwork or approved your request. For a deadline or important submission, follow the recipient's instructions for checking receipt. Our fax confirmation guide explains what the report shows.
If your one-time fax is an absentee ballot, first check the state-specific ballot return instructions to confirm whether fax is permitted for your circumstances.
Check these four details:
Ready to send? Open Fax.Plus, check your available allowance or credit, and use a manual top-up only if needed.
Fax.Plus's Email to Fax feature requires a paid plan. For the no-subscription route, download your attachment from Gmail or Outlook and upload it through the Fax.Plus web or mobile app instead. See the Free-plan feature details.
No. The Free plan supports sending only. Receiving faxes requires a fax number on a paid plan. If an organization needs to fax something back, arrange a suitable return channel with it before sending your request. See the Free-plan receiving restriction.
Free-page verification requires your IP-address country to match your phone number's country code, which can cause difficulty while abroad. Free-plan users with a verified email address can purchase credit without mobile verification. This is a paid alternative, not a way to claim the free allowance. Review the mobile verification instructions.
