Income Tax Assessment Act 1997
You need to keep travel records if your expense is for travel that involves you being away from your ordinary residence for 6 or more nights in a row.
The travel may be within or outside Australia. Subdivision 900-F tells you about travel records.
Note:
Members of international flight crews may be exempt from keeping travel records for losses or outgoings covered by travel allowances: see section 900-65 .
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