Tin means Tax Identification Number or Taxpayers Identification Number (Tin). Through a Tin Number a tax payer can be easily identified. It’s a 12 digit Number. National Board of Revenue, Bangladesh (NBR) is the authority who provide the Tin Certificate to the Tax Payers. Previously Tin Certificate was issued by NBR only through manual system and it was a 10 digit Number. Thereafter to speed up the whole process NBR has introduced an online system for obtaining Tin Certificate, which is known as e-Tin Certificate.
When looking for examples, when a TIN of 10 digits shows up it is usually besides its 12 digit e-TIN. The 10 digit TIN seems to be an older incarnation.
Taxpayer's Identification Number (TIN)
, and is 12 digits long according to http://bdlaws.minlaw.gov.bd/act-672/section-34615.htmlElectronic Taxpayer's Identification Number (e-TIN)
Examples: