At a cattle auction in Australia's lush Southern Highlands, an auctioneer shouts from a gantry over the din of nearly 2,000 cows waiting to be bought.

Australia will be subject to a 10 per cent reciprocal tariff and while Donald Trump is signalling big impacts on Australian beef, he is yet to detail just how large the tariff will be.

Australian beef farmers, traders, and industry groups said they intend to pass on the additional costs incurred from US tariffs directly to American consumers.