The Treasury publishes a daily report of receipts by category, one of which is “Non-Withheld Ind/SECA Electronic”. These show collections this year are ahead of last year. (I think the numbers are in millions.)

April 15   Monthly   Year

105,893   240,488   2026
  99,163   208,364   2025

I wonder if there is a limit to the number of transactions that can be processed each day, so larger payments are processed before smaller ones. No one here is posting the amounts involved.

Last year, the April 16 amount was $59,916. This year it was $66,137.

So the money is flowing at the same rate to Treasury.