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tax file number /ˈtæks faɪl nʌmbə/

(countable noun) Usage note: This is the usual term used by all speakers.

A 12 digit identification number given to everyone in Australia who pays taxes.

Example: You will be asked to give your tax file number to the bank when opening a term deposit. (http://www.mcohb.com.au/information/student-support-services/)


 

An Australian tax form with space for a tax file number at the top

(photo by Julia Miller)