Congratulations on starting your business, paragon22! We're thrilled to have you as part of the QuickBooks community. 

I'm here to help you enter a start-up cost in QuickBooks Online. 

Let's create a journal entry to track the list of expenses that you've personally paid. Here's how:

1. Go to the + New menu and then select Journal entry.
2. Set the Journal date. 
3. Choose the expense account you've created for the costs on the first line. 
4. In the Debits column, enter the amount. 
5. Select Partner's equity or Owner's equity on the second line. 
6. In the Credits column, enter the same amount. 
7. Click Save or Save and close.
8. Make sure to track all the expenses accurately.

For visual reference, I've added a sample screenshot below.

Once done, set up an expense and bank account for the reimbursement. I'd recommend consulting your accountant to determine their appropriate types. They can also assist you in creating the journal entry. Once ready to pay the funds, proceed to Step 2 in this article: Record Start-up Cost Made with Personal Money.

Moreover, it is generally advisable to separate business and personal expenses to maintain accuracy. However, there may be situations where it becomes necessary to mix them. I suggest referring to the article for more info: Mixing Business and Personal Funds Overview. In addition, browse the links to help you pay for personal expenses from a business account and reimburse an employee. 

As your dedicated support, I'm here to provide any information or assistance you may need to ensure your business thrives. Let's work together to make your venture a resounding success!