The Living Away From Home Allowance (LAFHA) is a tax-free allowance used by temporary overseas skilled workers and working holiday makers in Australia to offset additional expenses and discomfort incurred while living away from your usual home for a defined period of time.

Your class of visa, for example your Working Holiday Maker visa, does not automatically entitle you to LAFHA. It is based on your intention to ultimately return to the vicinity of your primary residence and this intention is reassessed every 12 months.
The LAFHA benefit generally arises where your employer pays you an allowance as compensation for additional non-deductible expenses and other disadvantages that you incur because you have to live away from your usual place of residence in order to do your job.
Important Notes:Legal Information
The LAFHA is dealt with under specific provisions of Australian tax law, namely, specific provisions in Division 7 of Part III of the Fringe Benefits Tax Assessment Act 1986 (FBTAA)
Sub-section 30(1) of Division 7 of Part III the FBTTA states:
Living Away From Home Allowance Benefits
30(1) [Provision of benefit]
Where:
by reason that the employee is required to live away from his or her usual place of residence in order to perform the duties of that employment;
the payment of the whole, or of the part, as the case may be, of the allowance constitutes a benefit provided by the employer to the employee at that time.