Can I correct transfer from checking. It should have been categorized?

Welcome to the Community, @trinidadproperti.

I'm here to help you transfer your deposit into your income account.

Yes, you can correct it. If the transaction is within the Categorized tab, you need to Undo it to change the account it falls off. If not, you can directly change it in the For review section. Here's how:

1. Go to Transactions. Select Bank transactions.
2. Choose Checking. If the account is within the Categorized section, click the Undo button beside it and under the Action button so it will go back to the For review tab. If not, go directly to the For review section.
3. From the For review section, look for the account you want to change categorization and click it.
4. Choose the Categorize button. In the Account * dropdown field, change it to the Income account category.
5. Once done, click Add to save the categorization.

You might want to transfer funds between two accounts in QuickBooks Online (QBO). Feel free to read this article: Transfer funds between accounts.

Also, if you want to reconcile the account you categorized, check out this article: Reconcile an account in QuickBooks Online. 

Leave a comment below if you have additional questions about managing your bank transactions. I'll be willing to help. Keep safe and have a good one.