West Australian Premier Mark McGowan has handed down a budget surplus of $3.3 billion, and the state is on track for 10 consecutive years in the black, buoyed by overflowing mining royalties.

Mr McGowan boasted his state was “walking tall” amid rugged economic conditions worldwide, backed by $11 billion of mining royalties in the last financial year, with another $7.8 billion expected for the 2023-34.