Taxation is the primary source of revenue for every nation. The present government, which is working to digitalize the country, has pursued the Electronic Tax Identification Number (E-TIN) to improve the effectiveness and efficiency of tax collection. In this context, the Taxpayer’s Identification Number (TIN) Certificate is a vital document for Bangladeshi individuals, organizations, and businesses.
The National Board of Revenue (NBR) is the only entity in Bangladesh that can issue a Tax Identification Number (TIN). One can apply for a Tax Identification Number manually or electronically through the National Board of Revenue (NBR). Tax Identification Number (TIN) can be obtained within one working day.
Required documents:
For individual (Adult):
Tax payer’s name
Valid National Identity Card Number
Date of Birth (according to National Identity Card)
For individual (Minor):

1. Tax payer’s name
2. Name and TIN of the Guardian
3. Tax payer’s photo (Passport size, soft copy)

For Foreigners and Bangladeshis without NID:

1. Passport number and passport issuance date
2. Visa number and Visa issuance date
3. Tax payer’s photo (Passport size, soft copy)
4. Company name (as per registration), registration number, and date

For firm (registered): Firm name (as per register), register number, and date
For firm (unregistered): TIN and names of the partners of the firm
For others (AOP, HUF Local Authority, AJP): TIN of the authorized person or the person in charge.
Further information can be found here: National Board of Revenue (NBR)