The ability for small business entities to claim an immediate deduction for assets costing less than $20,000 has been extended for another 12 months until 30 June 2019.

From 1 July 2019, the immediate deduction threshold will reduce back to $1,000. 

There are no limits to the number of times you can use the immediate deduction assuming your cashflow supports the purchases.

If your business is registered for GST, the cost of the asset needs to be less than $20,000 after the GST credits that can be claimed by the business have been subtracted from the purchase price. If your business is not registered for GST, it is the GST inclusive amount.

Second hand goods are also deductible. However, there are a number of assets that don't qualify for the instant asset write-off as they have their own set of rules. These include horticultural plants, capital works (building construction costs etc.), assets leased to another party on a depreciating asset lease, etc.

If you purchase assets costing $20,000 or more, the immediate deduction does not apply but small businesses have the ability to allocate the purchase to a pool and depreciate the pool at a rate of 15% in the first year and 30% for each year thereafter.