Higher taxes on property investors and bracket creep are propping up the Federal Budget and helping maintain Australia’s flawless credit rating. Ratings agency S&P Global has reaffirmed Australia’s triple-A credit rating, maintaining the nation’s status as one of nine countries to hold the top rating with the big three ratings agencies. “Australia’s government unveiled an ambitious suite of tax and spending reforms that could marginally improve the fiscal trajectory over the next decade,” the ratings agency said on Thursday. Maintaining the triple-A credit rating is vital for the federal government because it helps keep interest payments low. Treasurer Jim Chalmers said the reaffirmation of Australia’s credit rating was a “powerful endorsement” of the government’s responsible economic management.