Is it an increase? The article @macattack cited does not give any data on how much the IRS collected from high-income earners before this additional push supposedly funded by the Inflation Reduction Act. The article does mention that Republicans in congress recently rescinded more than $20 billion in additional IRS funding, which does suggest that the net benefit was far less than $1.3 billion and might even have been negative. It seems like the kind of breathless article the impact of which relies on people not well understanding the difference between a billion and a trillion.