A golden kangaroo, made out of three boomerangs, has been unveiled as the new national Australian logo by the federal government and will be free for businesses to use to promote their goods on the international market.

The logo, accompanied by the tagline 'only in Australia', was revealed by Trade Minister Dan Tehan and resource billionaire Andrew 'Twiggy' Forrest, and will be officially launched on Monday to coincide with the nation's international borders reopening.

Mr Tehan said the national branding was more than just a logo and a tagline, it was a holistic approach to selling what was unique about Australia to the world.