I manually added expenses for one year and saved each one. Only one expense is showing when I filter all expenses. (the last one that was manually added.) Any ideas?

It's possible that the Date option isn't set correctly, which could be why you're only seeing one expense transaction when filtering your data, drmo. Make sure to select either Last 12 months or This year to access all the relevant information you need.

To view a year's worth of file you've entered manually in QuickBooks, you can simply go to the Expenses menu and use the filter option to do it. Check out the detailed instructions below for more easy navigation:

1. From the Expenses menu, go to the Expenses tab.
2. Click Filter .
3. In the Date field, choose either Last 12 months or This year.
4. Select Apply. 

Moreover, if your expense account is connected to QBO, you can easily import your expenditures within the Banking page. For more information about this, check out this article: Manually upload transactions into QuickBooks Online.

Don't hesitate to drop a comment below if you need help managing your expenses in QBO. Know that I'm always ready to assist you further.