Why fax is still used in 2026.

The IRS, courts, hospitals, and law firms still require fax. Here's why it hasn't gone away.

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The problem

You assumed fax was dead — then you got a notice from the IRS, a form from your doctor, or a filing requirement from a court. Suddenly you need to fax something and have no idea how.

The fix

Fax persists because it has a legal and compliance status that email doesn't — it creates a timestamped transmission record accepted by regulators. FaxTh.is lets you fax without a machine from any device.

How it works

IRS accepts fax for notices, responses, and many forms

Courts require fax for filings in many jurisdictions

Healthcare uses fax for HIPAA-compliant records transfer

Legal fax transmission is admissible as proof of delivery

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