Fax guides & resources
Practical help with sending faxes, IRS forms, and choosing a service.
Stripe MPP vs Instant Checkout: How Agents Pay for a Fax
Compare Stripe MPP agent payments with hosted checkout. See how SingleFax handles HTTP 402 challenges, payment credentials and fax submission.
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Fax Security 101: Protecting Your Data When Faxing Online
Protect fax documents with verified recipient numbers, minimal covers, access controls and delivery checks. Choose the right service for sensitive records.
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Form 7004 Extension for Form 5472: How to Fax the IRS
Learn how to file Form 7004 by fax for an automatic 6-month extension on Form 5472. Verified fax number 855-887-7737, deadlines, Form Code 12, and rules.
Bridging Generations: Sending Children's Artwork to Grandparents via SingleFax
Send children’s drawings to grandparents by fax. Prepare a clear black-and-white image, verify the number and check the delivery result.
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How to Fax Medical Records to a Doctor or Clinic
Fax medical records to your doctor or clinic. Confirm the department’s number, requested records, routing cover and appropriate privacy safeguards.
Healthcare Faxing in 2026: HIPAA-Aligned Tips for Clinics & Practices
Practical guidance for secure, HIPAA-aligned fax workflows: cover sheets, access control, audit logs, and mobile safeguards in 2026.
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Secure Faxing: Myths vs Reality
We separate facts from marketing: encryption scopes, storage, logs, and when email‑to‑fax increases risk.
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