I appreciate you sharing thorough information and acknowledge the efforts you've made. Accurate reporting of expenses and income is indeed essential for transparency. I replicated this on my end to ensure I can provide the resolution for your case, lp_mi. 

I generated the Profit and Loss by Customer report and was able to click the Net Income amount.

Afterward, I was directed to the Profit and Loss Detail report, where the expenses were deducted rather than added to the net income.

I agree that expenses should be subtracted from the net income, and I'm glad that the total amount appears correct when you run your Profit and Loss by Customer report.

Since you've already tried using an incognito and different browser, but the unusual behavior persists, I recommend contacting our live support team. Our experts can further check and determine why the expenses appear as additions to the net income instead of being subtracted.

To contact our live support team, please follow these steps:

1. Hover to the Help icon, then choose the Search tab.
2. Type in Contact Us in the search bar.
3. Click Contact Us, and choose the Callback option.
    

For successful communication, please refer to this article to learn about our supporting hours: Get help with QuickBooks products and services.

Moreover, you can customize the Profit and Loss by Customer report and memorize it. This feature helps you avoid repeating the customization process, saving you valuable time.

Reaching out to our dedicated live support team ensures a comprehensive review of your financial reports. This process guarantees the accuracy and reliability of all information provided.