I e-filed 4/13, it was accepted before end of day. I owe, and IRS site doesn't show it for me to pay. How long does it take for IRS to show it?

[xmasbaby0]

Not sure where you are looking --- but did you pay?   Did you pay on the IRS web site or did you mail a check or money order?  You were supposed to pay by April 15, 2024 or the payment is late.   You do not wait for the IRS to tell you to pay.  Your tax return tells you to pay.

The IRS will show payments you have made on your online account with them.  

https://www.irs.gov/payments/your-online-account

[Mike9241]

with all the returns submitted in the last few days on or before the 15th in may take a few days for your payment to show up if you made payment and also depending on the method used. A paper check could take days longer.