Why would you want to accept Bitcoins in your shop?

You will pay 0.5% for the convenience of having Vend and DC POS take care of transactions for you, but that would also cover the fee needed to ensure that your transactions are processed promptly by Bitcoin 'miners' (the various people and organisations that run the computers that perform the calculations that drive the Bitcoin system).

The question you're probably asking yourself is why would I bother?

There are at least three reasons you might accept Bitcoins, apart from that low transaction cost compared with credit cards.

Firstly, is that there is still some novelty value. If you're the only cafe or bottle shop in the area that takes Bitcoin, that gives anyone looking to spend their Bitcoins a reason to visit you rather than a competitor.

That's if there's anyone in your area that uses Bitcoin, let alone uses it.

PayPal will soon allow its merchants to accept Bitcoin; Melbourne-based off-road vehicle manufacturer Tomcar accepts it; at least one house has been offered for sale for Bitcoin; and a relatively small number of cafes, bars and retailers already accept Bitcoin.

Thirdly, you may intend to hold Bitcoin as an investment.

Whatever your reason, you may want to consult your accountant first as the ATO's treatment of Bitcoin is not straightforward. 

Furthermore, the value of Bitcoin can fluctuate widely: this time last year it was worth about $150, it peaked at $1362 in December, fell to $288 in February, and is currently trading around $520. Unless you're deliberately holding Bitcoin for some reason, the associated risk can be minimised by promptly spending your Bitcoins or converting them into Australian dollars.