How can I register a deposit not related to any Invoice?

Hey there, @decosol.

I can help you record a deposit in QuickBooks Online.

If you receive something and you want to log it in the program and increase the bank balance, you can use the regular bank deposit option in QuickBooks. This does not link to the customer profile unless you choose Accounts Receivable on the line item.

To create a deposit, follow the steps below:

1. Select + New.
2. Select Bank Deposit.
3. From the Account ▼ dropdown, choose the account you want to put the money into.
4. Select the checkbox for each transaction you want to combine.
5. Make sure the total of the selected transactions matches your deposit slip. Use your deposit slip as a reference.
6. Select Save and New or Save and Close.

Refer to this link to learn how to make Bank Deposits in QuickBooks Online.

Please post here again if you have other bank deposit concerns or if you need help with other features in QuickBooks. I'm always here to help. Have a nice day!