Sending International Faxes from the US
Most American businesses don't realize they need international fax until they suddenly do. A Japanese supplier asks for a signed PO by fax. A German bank needs a notarized form. A UK solicitor will accept service only by fax. At that moment, most US fax services either refuse the destination or charge surprise rates. This guide covers what actually works in 2026 for sending faxes from the United States to the rest of the world.
Why International Fax Still Exists
Fax usage in the US has declined sharply, but it remains entrenched in several markets where US businesses commonly need to communicate:
| Country | Why fax persists |
|---|---|
| Japan | Cultural preference, hanko stamp workflows, ubiquitous in SMBs and government |
| Germany | Strict data protection (GDPR) makes fax preferred over email for sensitive docs |
| Austria | Same as Germany |
| Switzerland | Banking and legal sectors |
| France | Government agencies, notaires |
| UK | NHS, solicitors, some HMRC submissions |
| Italy | Public administration, "PEC" alongside fax |
| South Korea | Government and chaebol procurement |
| Taiwan | Manufacturing supply chain |
Japan is the standout. Fax remains so embedded in Japanese business that the government's 2021 attempt to phase it out from ministries was met with internal resistance and partially reversed. If you sell to or buy from Japan, you will need to send a fax sooner or later.
How International Fax Numbers Work
A fax number is just a phone number, so it follows the same E.164 international format:
+ [country code] [area code] [local number]
Examples:
| Country | Country code | Sample format |
|---|---|---|
| Japan | +81 | +81 3 1234 5678 (Tokyo) |
| Germany | +49 | +49 30 12345678 (Berlin) |
| UK | +44 | +44 20 7123 4567 (London) |
| France | +33 | +33 1 23 45 67 89 (Paris) |
| Italy | +39 | +39 06 1234 5678 (Rome) |
When entering the number into an online fax service, always include the leading + and country code and drop any leading zero from the area code. The leading 0 is a domestic dialing prefix used only inside that country.
For example, a Tokyo fax printed on a Japanese business card as 03-1234-5678 becomes +81 3 1234 5678 when dialed from outside Japan.
Time Zones Matter
Some fax machines abroad are powered down outside business hours. Some sit on shared lines that ring for voice during the day and fax at night. And in a few markets — especially Japan — sending a fax in the middle of the recipient's night is considered rude even if the machine accepts it.
Approximate business hours from US Eastern Time:
| Destination | Local business hours (in US ET) |
|---|---|
| Japan (UTC+9) | 7pm – 4am previous day |
| Germany (UTC+1) | 2am – 11am |
| UK (UTC+0) | 3am – 12pm |
| France (UTC+1) | 2am – 11am |
If you're on the US West Coast, subtract three hours. The practical implication: send to Europe in the morning (US time), and send to Asia in the early evening. Schedule features in some online fax services let you queue a transmission for the recipient's business hours.
Language Considerations
Your cover sheet should be in a language the recipient can read. For most major markets, English is acceptable for B2B communication, but a few notes:
- Japan. Even at international-facing companies, the receiving clerk may not read English. A bilingual cover sheet (Japanese top, English bottom) dramatically increases the chance your fax is routed to the right person. Include the recipient's name in Japanese (kanji) if you have it.
- Germany. English is fine for technical and corporate destinations. For government, use German.
- France. English is widely understood in business, but French is appreciated and expected for legal correspondence.
- South Korea / Taiwan. English works at large companies; smaller suppliers benefit from a bilingual cover sheet.
The body of your document can stay in English unless the recipient has specifically requested a translation. Faxing a translated document is the recipient's job, not yours, in most B2B contexts.
Supported Destinations
Most quality online fax services support 150+ countries. The limitations are usually:
- OFAC-sanctioned countries (Iran, North Korea, Cuba, Syria, Russia in some categories) are blocked by all US-based fax services.
- Some Pacific island states and remote African countries may have intermittent fax routing.
- Premium-rate destinations (some satellite numbers, certain Caribbean countries) carry surcharges.
FaxChat supports direct delivery to Japan and the major European, Asian, and Americas markets without surcharges. Before relying on any service for a critical destination, send a one-page test fax to confirm routing works.
Cost Realities
International fax pricing varies more widely than domestic. Typical 2026 rates:
| Destination region | Typical per-page cost (USD) |
|---|---|
| Canada | $0.10 – $0.20 |
| Western Europe | $0.15 – $0.40 |
| Japan | $0.15 – $0.35 |
| Other Asia | $0.20 – $0.50 |
| Latin America | $0.20 – $0.60 |
| Africa | $0.30 – $1.00 |
Subscription services often charge international pages at a premium or count them at 2-3x the domestic rate. Pay-per-page services tend to be more transparent.
For occasional senders (a few international faxes per month), pay-per-page wins on price and simplicity. For regular international senders, look for a service that publishes its full international rate card.
Step-by-Step: Sending an International Fax
- Get the destination number in international format. Ask the recipient to confirm it as
+CC area number. Don't guess. - Prepare your document as a PDF. Use 300 DPI or higher. Make sure any seals, stamps, or signatures are clearly legible — international fax machines often produce slightly degraded output.
- Add a bilingual cover sheet if sending to Japan, Korea, or Taiwan.
- Verify time zone. Schedule for the recipient's business hours if possible.
- Upload to FaxChat (or your chosen service) and enter the number with
+and country code. - Send and save the confirmation. International deliveries can take 30-120 seconds depending on the route.
- Follow up by email. A short "I have just sent a fax to your number ending in XXXX, please confirm receipt" closes the loop.
Troubleshooting International Failures
If a fax fails to deliver:
- Re-verify the number. The most common cause is a missing or extra leading zero.
- Try resending. International routes can have transient failures.
- Check whether the destination expects fax or fax-over-IP. Some modern offices use VoIP fax that doesn't always handshake cleanly with US carriers. T.38 support on the sending side helps.
- Reduce page count. Long faxes are more prone to mid-transmission failures over international links. Send 5-10 pages at a time.
- Confirm the destination machine is on. Email or call the recipient.
Receiving International Faxes
If you also need to receive faxes from international senders, you'll need a fax number that accepts inbound calls from abroad. Most online fax services provide US numbers that can receive from anywhere — international callers just dial your US number with their own country's exit code. There's no extra setup on your end, but warn international correspondents that they'll be paying international call rates.
Bottom Line
International fax from the US is straightforward once you understand the format, the time zones, and the language conventions of each destination. Use a service that supports direct international delivery without surcharges, format the destination number correctly with a leading + and country code, and add a bilingual cover sheet for Asian destinations. For a US business that occasionally needs to fax Tokyo or Berlin, an online fax service is dramatically simpler than trying to make a desktop fax machine reach across an ocean — and your delivery confirmation arrives the same way it would for a domestic send.