How do I enter a cash loan from an owner that went directly into the business bank account that was paid back in full plus interest?

Welcome to the Community forum, Jess. I'm glad that you took the time to visit us here and allow us to assist you in properly recording the cash loan made by the company owner. No worries, I'm here to make sure we'll be able to document this inside QuickBooks Online and match it with the deposit on your Bank Register.

Before anything else, I'd like to highlight that it's always a good idea to consult with your accountant before performing the recommended steps below for specific instructions on how to properly handle this. Your accountant can provide hands-on support from technical and accounting perspectives. If you don't have one, refer to this page: Find a ProAdvisor.

To start with, since you've already created an account in your Chart of Accounts, let's go ahead and delete the starting balance. While we have the option to enter an opening balance when creating a new account, we also have the choice to leave it blank or zero. 

Here's how:

1. Go to the Gear icon then select Chart of Accounts.
2. Locate the account then click on View Register.
3. Find the starting balance entry then click on it.
4. Hit Delete.

Now you can go ahead and create a check affecting the account you created to record the loan transaction.

After which, let's create a Bank Deposit using the account you used for the Check. Here's how:

1. Go to the + New icon then select Bank Deposit.
2. In the Account dropdown, choose the account you want to put the money into.
3. Click on the Add funds to this deposit dropdown.
4. On the first line, select the payee in the Received from field and choose the Account. Enter the loaned amount in the Amount section and fill in other necessary fields.
5. On the second line, select the same name in the Received from field and choose the account allocated for interests. If you haven't, create one. Enter the interest in the Amount field and fill in other necessary fields. 
6. The sum of the first and second lines should equal the loan deposit amount in your Bank Register.
7. When done, hit Save and close.

As a result, you can now match the loan deposit on your Bank Register. To guide you through the process, refer to this article: Categorize and match online bank transactions in QuickBooks Online.

Additionally, I'd like to include that every subscription has its usage limits. In case you'll reach the maximum number of accounts in your Chart of Accounts, please know that you can inactivate unused accounts. To guide you through the process, feel free to browse through this article: Make an account inactive on your chart of accounts in QuickBooks Online.

If you require any additional assistance in managing loans in QuickBooks Online, please leave a comment below. Our team is ready to provide the assistance you require, assuring a smooth QuickBooks experience. We look forward to working with you. Have a wonderful day.