US Federal Taxes go to the Treasury[1][2], which then spends it on Federal government programs. If spending is more than receipts, the US Federal Reserve issues securities (ie, sells bonds) to raise money[3].
Quantitative Easing by the Federal Reserve does cause money to "appear", but this is different to the general process for funding federal government programs[4] (Note that the money can disappear if/when the Reserve chooses to resell those assets).
[1] https://fiscaldata.treasury.gov/datasets/monthly-treasury-st...
[2] https://www.reuters.com/article/us-usa-trump-taxes-revenue-e... ("Of the $3.46 trillion in receipts taken in by the U.S. Treasury during fiscal 2019")
[3] https://www.stlouisfed.org/open-vault/2019/november/where-fe...
[4] https://www.forbes.com/advisor/investing/quantitative-easing...