identification number

What Is an Issuer Identification Number (IIN)? The issuer identification number (IIN) refers to the first few digits of a payment card number issued by a financial institution. They are typically the first eight digits found on a credit, debit, or another type of payment card. The issuer...

What Is a Preparer Tax Identification Number? A preparer tax identification number (PTIN) is an Internal Revenue Service (IRS) identifier implemented in 1999 that has required all paid federal tax return preparers to register with the federal government and obtain a unique number since 2010. Tax...

What Is an Employer Identification Number (EIN)? An Employer Identification Number (EIN) is a unique identification number that is assigned to a business entity so that it can easily be identified by the Internal Revenue Service (IRS).1 It is commonly used by employers for the purpose of...

What Is a Taxpayer Identification Number (TIN)? A taxpayer identification number (TIN) is a unique nine-digit number used to identify an individual, business, or other entity in tax returns and other documents filed with the Internal Revenue Service (IRS). A TIN is typically either a Social...

What Is a Personal Identification Number (PIN)? A personal identification number (PIN) is a numerical code used in many electronic financial transactions. Personal identification numbers are usually issued in association with payment cards and may be required to complete a transaction. The...