Frequently Asked Questions

Everything you need to know about Onetime Fax

Specialized Fax Guides

Medical Records

HIPAA-compliant faxing for medical documents, insurance forms, and healthcare records.

Tax Documents

Send tax forms to IRS, accountants, and tax preparers without visiting FedEx.

IRS Faxing

Numbers, formatting, security, and timing for IRS faxes.

Legal Documents

Fax legal documents to lawyers, courts, and law firms without a fax machine.

Phone Faxing

Send faxes from your phone without downloading apps or installing software.

USCIS Faxing

When USCIS accepts fax, formatting, and tips.

SSA Faxing

How to fax Social Security documents securely.

International Faxing

Number formatting, country codes, timing, and common destinations.

Legal Faxing

California Courts

Fax filing policies, formatting, and timing.

Texas Courts

Fax filing policies, formatting, and timing.

New York Courts

Fax filing policies, formatting, and timing.

Florida Courts

Fax filing policies, formatting, and timing.

DMV Faxing

California DMV

When fax is accepted, formatting, best practices.

Texas DMV

When fax is accepted, formatting, best practices.

New York DMV

When fax is accepted, formatting, best practices.

Florida DMV

When fax is accepted, formatting, best practices.

Illinois DMV

When fax is accepted, formatting, best practices.

General FAQ

How much does it cost to send a fax online?
Onetime Fax charges a flat $5 fee per fax, regardless of the number of pages. This is much more affordable than subscription services that charge monthly fees plus per-page costs. No hidden fees, no setup charges, and no account required.
How to send international fax?
To send international faxes with Onetime Fax: 1) Upload your PDF document, 2) Enter the international fax number with country code (e.g., +44 for UK, +81 for Japan), 3) Pay the flat $5 fee, 4) Receive instant delivery confirmation. International faxes cost the same as domestic faxes.
Is online fax secure?
Yes, Onetime Fax is highly secure. We use SHA-256 SSL encryption for all data transmission, automatically delete files after delivery, and never view or store your fax content. Our security measures meet HIPAA compliance standards for sensitive documents.
Is Onetime Fax secure?
Your connection to Onetime Fax is secured with a SHA-256 bit SSL certificate. When you upload your file to us, it is over an encrypted connection. After your fax is transmitted, the files are automatically deleted. We do not view the contents of your fax.
What do you do with my payment information?
Onetime Fax does not have access to your payment information. Payments are made via Stripe, a trusted name in credit card and bank payments.
Can I generate a cover page for my fax?
Yes! Onetime Fax includes a built-in cover page generator. You can create professional cover pages with your details, recipient information, and subject line. This helps make your faxes look more professional and provides important context to recipients.
Why does Onetime Fax cost money? Some fax services are free.
Onetime Fax does not sell your data, serve you ads, or add our brand as a cover page to your fax. However, we do provide a cover page generator so you can create your own professional cover pages. We don't take any outside funding and are independently owned. Onetime Fax costs money because running a secure website costs money.
What does Onetime Fax charge per page?
Onetime Fax does not charge per page. We charge a flat fee per fax.
What file formats does Onetime Fax support?
We support PDF files. For best results, we recommend converting your documents or images to PDF before uploading them.
Does Onetime Fax provide delivery confirmation?
Yes, you will receive an email confirmation once your fax has been successfully delivered. If there are any issues with transmission, we will notify you immediately.
Can I send faxes internationally with Onetime Fax?
Yes, we support international fax numbers. International faxes are charged the same flat rate as US and Canada faxes.
What are Onetime Fax support hours?
Please email us at [email protected]. We typically respond within 1 business day.
Is Onetime Fax VC funded?
No, Onetime Fax is profitable.
Can I receive faxes with Onetime Fax?
Not at this time! Stay tuned.