Currently trying to sort my end of year tax return,my invoices have gone missing and no longer visible?

Hello there, shanecheryl.

There are a number of steps that will help us double-check what happened. Let's start by making sure the date is not sorting out old transactions. Here's how: 

1. Go to the Sales menu and proceed to the All Sales tab.
2. Click the drop-down list for Filter.
3. Select Invoices under Type, then select All dates under Date.
4. Click Apply.

If we can't see them, the transactions might have been accidentally deleted. We can go to the Audit Log report to verify if that is the case. Here's how:

1. Go to the Gear icon and select Audit Log under Tools.
2. Click the drop-down list for Filter and select All Dates in the Date filter.
3. Select All transactions under Events.
4. Review the transactions if we can see the missing invoices. The Event column will also say if the transactions were deleted or voided.

If none, let’s access your QuickBooks account on a private browser. We need to check if the issue is caused by the data in your cache. Once your browsing data is stored, it can cause performance issues in the web pages.

Check out these keyboard shortcuts based on the browser you're using:

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

Then if it works, we can go back to a regular browser and clear its cache. 

We can check out these articles for more details on how to manage invoices:

• Customise invoices, estimates, and sales receipts in QuickBooks Online. 
• Add, customise or remove logos on sales forms. 

Please let me know how these troubleshooting steps work. I want to ensure you're able to see the missing invoices. Have a nice day!