Return accepted in January/IRS still shows I owe $0

I owe $500 and some change this year to the IRS. Free Tax USA, who I filed through way back in January says "return accepted" and what I owe.

I finally got on the IRS website and lists ZERO dollars as what I owe for the 2025 year.

I know I'm already late, and prepared to make a late payment. But I want to make sure I'm paying in the right place.

I have seen people on here say they've had the same problem, but has it ever been 3 months later and AFTER April 15 and it still hasn't appeared?