The deficit in March was $163 Billion

 See: https://www.cbo.gov/publication/61300/html

FYTD interest was $497 billion, so $95 billion for the month.

The Federal Reserve debt was $225.4 billion as of 3/26/25, so it increased $4.3 billion.

The Treasury General Account balance was $405.8 billion as of 3/31/25, so it decreased about $154 billion.  Since April will be a surplus because of tax revenue, this may last until July before it runs out of money and they need to raise the debt ceiling.

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Update: The FYTD (fiscal year to date) deficit is $1.307 trillion, the second highest it has ever been as of March 31, only behind fiscal year 2021.