Additional tax owed?

Hi,

I did my '23 taxes with TurboTax.  I did a large Roth conversion in Dec and I owed a penalty.  I used TT to figure the penalty using the annualized income method.  I paid what it said I owed on April 12.  The just recently cashed my check.  I went to the IRS website and it said I have an outstanding balance of $27...????  Will I get some form of notification that says I still owe this amount and why they believe I owe this amount?

 

Thank you!