Accounting Firms login asking for signup with additional subscription plan.... 223/month/license ??? What is this... ???

It's my pleasure to provide some information about this prompt, @prasad-krguru.

To start, ensure to enter the correct login credentials for your QuickBooks Accountant account. 

It could be that the prompt is a QuickBooks Ads appearing when trying to log in to your account. The ads are designed to guide and suggest you how to optimize your QuickBooks experience. If they're affecting your navigation experience, I recommend clicking on the X or No, thanks button. This will prevent the pop-ups from showing up again.

If there isn't an option to disregard the prompt. We can perform some troubleshooting steps to fix this. There are times that the browser is full of frequently accessed pages, thus causing some unusual responses. Let's log in to your account using a private browser. This mode will not save any history making it a great place to identify issues in the browser. 

Access your QBO account in a private/incognito browser. You may use these shortcut keys that I've listed below:

• Google Chrome: press Ctrl + Shift + N  
• Mozilla Firefox: press Ctrl + Shift + P
• Safari: press Command + Shift + N

Then, log in to your Accounting Firm account. If it works, go back to your regular browser and clear the cache to delete stored site data and improve the system performance. Also, you can use other supported browsers. It could be that the one you're currently working on has a temporary problem with QuickBooks. 

 Additionally, if you need clarifications for the charge, you can contact our support team. This way, they can provide additional insights about the amount shown in the prompt.

Moreover, I'll be adding these articles to guide you manage your account: 

• Add and manage your accounting team in QuickBooks Online Accountant
• Set up or change lead accountants in QuickBooks Online Accountant

Feel at ease to let me know if you have other questions. I'll get back to you as soon as I can. Have a great day.