QB Self-Employed is giving me a HTTP Status 400 – Bad Request when I attempt to connect with TurboTax. I cleared my cache and it still isn't working. Now what do I do?

I appreciate you doing some troubleshooting on your end, octoberteddy. The HTTP Status 400 - Bad Request error occurs when the server cannot process the request sent to it. I'm here to provide you with additional troubleshooting steps to help resolve this issue.
 

Since you've already cleared the cache, let's access your QBSE account and connect with TurboTax through a private browser or incognito window. Using a private window ensures that no cookies or cache can interfere with the process, resolving issues caused by stored data.
 

To begin, you can refer to the keyboard shortcuts provided below for enabling incognito mode in different browsers:
 

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

Also, let's ensure that the browser you choose is up-to-date and compatible with QBSE for optimal performance and security. As an alternative, you can use another supported browser.
 

If the error still occurs, I encourage you to contact our Live Support team. Our support team possesses the necessary tools to uncover the root cause of the problem and can organize a screen-sharing session to significantly improve your QuickBooks navigation experience.

Moreover, this article ensures that financial statements like the income statement and balance sheet are accurate by properly categorizing your transactions.

Please don't hesitate to return to the Community forum if there is anything we can assist you within QuickBooks. We're committed to ensuring your experience is as seamless as possible, and we're here to support you every step of the way.