Why do depreciated assets account show up as other assets?

That depends on the type of business entity you selected when creating your QuickBooks Online (QBO) account, iadministrator12.

The Depreciation account in your Chart of accounts is one of the default accounts established during your company's initial setup. If you need to correct its Account and Detail type, please follow the steps below. But, I recommend consulting with your accountant first to ensure you choose the appropriate options.

Whenever you're ready, perform these steps:

1. Go to Settings ⚙ and select Chart of accounts.
2. In the Filter by name field, enter “depreciation”.
3. Under the Action column, click the Run report drop-down, and choose Edit.
4. Change the Account type and Detail type as necessary.
5. Click Save. 

For more insight about recording the depreciation of assets, please see this article: Depreciate assets in QuickBooks Online.

You may also want to generate financial reports to maintain a clear view of your business's cash flow and ensure all financial transactions are accurate.

Elevate your QuickBooks experience by partnering with our QuickBooks Live Expert Assisted team. Our financial professionals are dedicated to streamlining your processes and providing personalized advice tailored to meet the unique needs of your business.

Don’t hesitate to leave a message below if you need further assistance with your depreciation account.

@administrator12 

Fully depreciated fixed assets should stay on your balance sheet (BS) if they are still used to generate revenue for the business. The fixed assets should be listed at historical cost with a separate Accumulated Depreciation (AD) contra-asset account (negative amount) representing the depreciation.  You can combine the AD of all fixed assets into one AD account or have separate AD accounts for each fixed asset - up to you.