The Post reports today that the IRS’s internal projections estimate that the DOGE-driven disruptions to the IRS since the inauguration are on track to have reduced tax receipts by more than $500 billion by April 15th. This, to be clear, is not a final tally. It’s not April 15th yet. It’s a projection based on historical data, the number of people who’ve filed, paid owed amounts of tax etc.
The fourth sentence of the article explains it