I am going to borrow money from my personal savings to start up my business. Im a sole trader. How is best to set this up and pay myself back from my buisness earnings?

Hello there, @parksoldschoolho.

You can create a liability account in the Chart of Accounts. Then, create a Journal Entry to record track the amount you've paid using your business earnings. However, it's best to speak with your accountant regarding this matter to avoid getting errors in the future with your books.

I can show you how to create a liability account in QuickBooks Online. Here's how:

1. From the left panel, go to the Accounting menu, and select Chart of Accounts.
2. Click on the New button to create an account. In the Account Type section, you can select either Current Liabilities or Non-current Liabilities.
3. Choose the the Detail type that fits the scenario of your loan.
4. In the Name section, you can enter the loan purpose or what kind of loan to find it easily.
5. Enter a description, this is optional.
6. Enter the GST Code and the Unpaid amount as of the specific date.
7. Select Save and Close.

To start entering the transactions, you can check out this article for more information: Set up a loan in QuickBooks Online. This contains other option when entering transactions in your loan account aside form creating a journal entry, you can also create a Check.

I've also added an article to help you with your future task about categorizing your transactions in QuickBooks Online: Categorise and match online bank transactions in QuickBooks Online.

You can always get back in the comment section below if you need further assistance or if you have other concerns. I'd be happy to lend a helping hand. Take care.