I need to enter 2019 expenses to correct books

Let's make sure to enter the transaction as an expense with the correct date, worldwidetailors.

To do this, you can follow the steps  provided below:

1. Go to the Transaction menu and select Add Transaction.
2. Enter the amount and a description.
3. Select the Select a category menu. Select the best category to organize your transaction. Learn more about categories.
4. If you have a receipt, you can drag and drop it onto the form.
5. When you’re done, click Save.

Please check these articles for detailed steps:

• Manually Add Transactions In QuickBooks Self-Employed
• Schedule C And Expense Categories

For your reference, you'll want to pay federal estimated quarterly taxes in QuickBooks Self-Employed (QBSE).

Fill me in if you need assistance with recording your transaction. I'll always be here to help you.