Fax guide
The practical fax guide for official paperwork
From return letters to the tax office — we explain which institution, which number and which document, step by step.
FaxTo — Fax from your phone
4.8 · 12,400+ ratings
Send confirmed faxes from your phone, no fax machine needed.
Transmission receiptDelivered
Return Letter.pdf
FX-9F2A71 · 00:00:23
Popular guides
The most searched fax procedures, step by step.
Returns & e-commerce
How to fax a product return request
When the seller wants it in writing: preparing a return letter, finding the right fax number and keeping proof of delivery.
Tax & government
How to fax a letter to the tax office
Debt objections, installment requests or record corrections — the right way to file a letter with the tax office by fax.
Social security & health
Faxing documents to social security
Service record objections, debt queries and employment record corrections — filing with social security by fax.
Banking & finance
Disputing a credit card charge by fax
An unfamiliar charge on your statement: filling the dispute form and faxing it to your bank’s dispute unit.
Subscriptions & telecom
Cancelling an internet or TV subscription by fax
Cancelling in writing when your contract ends: a cancellation letter template and faxing your provider.
Returns & e-commerce
Faxing a formal notice before a consumer arbitration filing
Why and how to create proof of written notice to the seller before filing with the arbitration board.
Why fax, still?
Legal validity
Many institutions and courts accept faxed documents as officially served, with a timestamp.
Institutional requirement
Tax offices, insurers and banks still require written fax submissions for certain procedures.
Proof of delivery
A fax transmission report proves your document reached the other side — email offers no such guarantee.