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Singapore maintains active fax infrastructure across government agencies, law firms, healthcare institutions, and financial services. Despite being one of Asia's most digitally advanced economies, fax remains a recognised and commonly used channel for official document submission and professional correspondence — particularly where an auditable paper trail or formal written record is required.
For a detailed walkthrough, see our guide: How to Send Fax Online in Singapore.
Singapore fax number format
Singapore uses a straightforward 8-digit flat numbering system with no area codes:
- Country code: +65
- No leading zero: unlike the UK or Germany, Singapore numbers do not have a leading 0 to drop
- Fixed line fax numbers: 8 digits, starting with 6 (e.g. +65 6XXX XXXX)
- Full format example: +65 6123 4567
When using an online fax service, select Singapore (+65) from the country dropdown, then enter the 8-digit number exactly as published.
Important: Singapore mobile numbers start with 8 or 9. Mobile numbers cannot receive faxes — fax lines are fixed-line numbers starting with 6. If you have a number starting with 8 or 9, it is a mobile number, not a fax line.
Who uses fax in Singapore
Government agencies: MOM, CPF, IRAS, and HDB
Several major Singapore government agencies maintain fax lines for formal document submissions:
- MOM (Ministry of Manpower) accepts faxed correspondence related to work passes, employment disputes, and workplace safety submissions. Employers dealing with EP, S Pass, or work permit documentation may need to fax supporting documents to MOM's relevant departments.
- CPF Board (Central Provident Fund) uses fax for certain employer contribution corrections, member queries, and formal written submissions where physical documentation is required.
- IRAS (Inland Revenue Authority of Singapore) accepts faxed responses and supporting documents for income tax, GST, and property tax correspondence. If you have received an IRAS query letter, the fax number for the relevant department is typically published in the letter itself.
- HDB (Housing Development Board) uses fax for property-related correspondence including flat transfer documentation, mortgage-related communications, and submissions from law firms handling HDB conveyancing matters.
Law firms: conveyancing and litigation
Some Singapore law firms publish fax numbers for professional correspondence. Whether fax is permitted for service, filing, or a conveyancing step depends on the current rules and recipient instructions. Confirm the accepted method before sending a deadline-sensitive document; transmission status alone is not proof of legal acceptance.
Healthcare: hospitals and specialist clinics
Singapore's public and private healthcare institutions — including Singapore General Hospital (SGH), National University Hospital (NUH), Raffles Hospital, and numerous private specialist clinics — use fax to exchange referral letters, specialist reports, medical records requests, and discharge summaries. Inter-institution referrals between polyclinics, restructured hospitals, and private specialists frequently use fax as a reliable channel that integrates with existing clinical workflows.
Insurance: financial and insurance correspondence
Major insurers operating in Singapore — including Great Eastern, Prudential Singapore, AIA Singapore, and Income Insurance — use fax to process signed policy documents, claims submissions, and formal change-of-instructions requests. Financial advisory firms and their compliance teams also use fax for regulated document exchanges where an auditable submission record is required.
How to send a fax to a Singapore number
- Save your document as a PDF. Ensure signatures are legible and the file is not password-protected.
- Go to Send Fax Online from any browser — desktop or mobile.
- Select Singapore (+65) from the country dropdown.
- Enter the 8-digit fax number starting with 6. Do not add any leading zeros or extra digits.
- Review the page count — 10 credits per page.
- Pay and send. Track delivery status in fax history.
Pricing
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FAQ
How do I format a Singapore fax number for international sending?
Simply select Singapore (+65) and enter the 8-digit number as-is. For example, if the fax number is 6123 4567, enter 61234567. There is no leading zero to remove.
Can I fax to IRAS?
Yes. Use the fax number printed on the IRAS letter or notice you received. IRAS publishes department-specific fax numbers on the iras.gov.sg website for common correspondence types.
Can I fax to MOM or CPF?
Yes. The relevant fax numbers are published on mom.gov.sg and cpf.gov.sg respectively, under the specific department or service you are corresponding with.
My Singapore contact's number starts with 8 or 9 — can I fax them?
No. Numbers starting with 8 or 9 are Singapore mobile numbers, which cannot receive faxes. Fax-capable lines in Singapore are fixed-line numbers starting with 6. Ask your contact to provide their office or fixed-line fax number.
How long does a fax to Singapore take?
Delivery time depends on the receiving line. Wait for the final delivered or failed status, and obtain any separate acknowledgment required for an official submission.
How are uploaded documents handled?
Review the current Privacy Policy before sending personal or confidential information. Do not rely on this destination guide as a data-retention statement.
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