• https://www.hasil.gov.my/en/quick-links/services/implementation-of-tax-identification-number-tin/?bt_kump=5&bt_skum=8&bt_posi=1&bt_unit=1&bt_sequ=3
  • FAQ: https://phl.hasil.gov.my/pdf/pdfam/FAQ_TIN_2.pdf
• https://mytax.hasil.gov.my/
• http://phl.hasil.gov.my/pdf/pdfam/MALAYSIA_TIN_NUMBER_AND_TIN_REGISTRATION_02122020.pdf (save here just in case)
  • http://lampiran1.hasil.gov.my/pdf/pdfam/MALAYSIA_TIN_NUMBER_AND_TIN_REGISTRATION_02122020.pdf
    • Maybe the same as previous one.
• http://www.oecd.org/tax/automatic-exchange/crs-implementation-and-assistance/tax-identification-numbers/Malaysia-TIN.pdf

  Tax Identification Number (TIN) known as “Nombor Cukai Pendapatan” or Income Tax Number (ITN)

• Seems to list as a hint all the prefixes: https://www.cwca.com.my/v3/wp-content/uploads/2020/10/Borang_P2019_1.pdf

  OG/SG/TA/TC/TP/F/J/C/CS/D/TR/PT/TN

• https://www.archive.estream.com.my/document/SQLPay-Gov-Nota_Penerangan_E2010.pdf
• https://www.sgbt.lu/fileadmin/user_upload/SGBT/PDF/Compliance/CRS_2018/20191031_TIN_Leaflet_EN.pdf

  The TIN is called “Nombor Cukai Pendapatan” or Income Tax Number and is issued by the Inland Revenue Board of Malaysia (IRBM).
  For individuals: The TIN consists of 13 characters (format: LL 99999999999). The two first characters are either “SG” or “OG”.
  For entities: The TIN consists of 11 or 12 characters (format: L 9999999999 or LL 9999999999) depending on the entity type.

• https://wiki.scn.sap.com/wiki/display/CRM/Malaysia (this seems to refer to a different number, since it says it is all digits)

  12 digits. The last one is the check digit, calculated by MOD10.

• https://tin-check.com/en/malaysia/

  The TIN is called “Nombor Cukai Pendapatan” or Income Tax Number and is issued by the Inland Revenue Board of Malaysia (IRBM).
  For individuals: The TIN consists of 13 characters (format: LL 99999999999). The two first characters are either “SG” or “OG”.
  For Entities: The TIN consists of 11 or 12 characters (format: L 9999999999 or LL 9999999999) depending on the entity type.

• "Nombor Cukai Pendapatan" or "No. Cukai Pendapatan".

Examples:

• C 2128186207 from https://www.fluidra.my/legal.html
• https://otakit.my/ini-caranya-bayar-cukai-pegangan-witholding-tax-perkhidmatan-facebook-google/

  C 2354867110
  C 2493192407

• F 1064671704 from https://rmhc-malaysia.my/wp-content/uploads/2017/06/RMHCLHDN.pdf
• OG 04455987090 from https://vgrowth.com.my/wp-content/uploads/2020/10/Form-J-Geo-Resource-Solution-P01.pdf
• SG 2178656-09 from https://www.hr2000.com.my/downloads/writeup.webspace.PDF
• C123456789 (looks a bit weird, it might be an example) from https://www.thks.com.my/index.php?ws=latestnews&nid=93578
• SG 012345678900 (it might be an example) from https://liew.my/wp-content/uploads/2021/09/Template-to-Close-LHDN-Tax-Number-1.docx