You can fund your USD trading account at your funds page the following ways:
This goes directly to the US via OFX and is the fastest and cheapest way to fund.
There are no card fees when funding via POLi
Debit / credit card
Funds get sent directly to the US via OFX. Can fund up to $10,000. There is a 2% (min $1USD) fee on all card transfers and an additional 0.5% for express funding.
Fund AUD into your AUD Wallet (powered by Macquarie Bank)
Each trading account gets an AUD wallet which is a Macquarie Cash Management account.
This is one entry point and the main exit point to funding on Stake. The details of your account are provided to you by email and in your FUNDING page on Stake and you can transfer funds here by EFT.
Once your funds are in your AUD wallet you can transfer to USD on Stake to trade. This is all done on your ADD FUNDS page.
Buy yourself gift card
If you want you can buy a gift card and redeem it yourself.