tax file number

noun

A nine-digit number issued by the Australian Tax Office to citizens, permanent residents, and certain foreigners, to track people for taxation purposes.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nountax file number (plural tax file numbers)

plural tax file numbers

  1. AustraliaA nine-digit number issued by the Australian Tax Office to citizens, permanent residents, and certain foreigners, to track people for taxation purposes.
Cite this entry
APA

tax file number. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/tax%20file%20number

MLA

“tax file number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tax%20file%20number. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “tax file number,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/tax%20file%20number.

Source: tax file number on Wiktionary, CC BY-SA 4.0.