Yes I am having the exact same issue with my last two payments.  I ended up over weekend paying through Maryland Tax Connect.  Have you found any resolution to this issue yet?  Thanks!

Not yet.  I solved my problem the same way you did -by paying  through MarylandTaxConnect.  As we only pay monthly, it'll be a few more weeks before I try again.  Hopefully the issue will be resolved by that time.

Received same rejection notice.  I verified that my federal and state account numbers are correct.  I have not found a solution.

Let me direct you to the appropriate support team to assist you with the issue you're encountering in paying your Maryland withholding tax, Mike.

To ensure we can securely investigate this for you, I suggest reaching out to our Live Support team. They can help you further and get you back to business smoothly. Here's how to get in touch:

1. Go to the Help menu, then select QuickBooks Desktop Help or Contact Us.
2. Enter your concerns.
3. Click Contact Us.

In the meantime, you can directly pay on the state website and mark the liability check in your QuickBooks Desktop (QBDT) as paid via prior payment. You can check out this article for the detailed steps: Enter historical tax payments in Desktop payroll.

Let us know in the comment section below if you have any additional payroll questions.

Hi Mike - FYI, I just received the following from QB Support..."We have reached out to the State of MD and found the issue was being driven by an error within the State's system.  MD has advised they will be releasing a fix within the next few days."

Awesome news, thanks for update!