The report of Australia’s Productivity Commission into the way goods and services tax (GST) receipts are shared will, if adopted, entail a major revenue spike for Western Australia (WA). WA has seen its GST grants from the Commonwealth grants fall to less than 30 cents in the dollar GST raised in the state at times, but the Productivity Commission’s recommendations could see WA’s GST grant revenue increase by as much as A$3.6 billion a year (US$2.8 billion).