What is a Taxpayer Identification Number (TIN)?
A TIN is a combination of letters or numbers that a country assigns to an individual or business for tax purposes. For example, in Canada:
- for individuals, the TIN will be their Social Insurance Number (SIN)
- for businesses, such as corporations and partnerships, the TIN will be the Business Number (BN) or the Quebec enterprise number (NEQ). Note: TINs for trusts always begin with the letter "T".