It's great to have you here, @Theresem723.

You can manually add your 2019 income transactions with QuickBooks. I can guide you on how to do it.

Here's how to manually add your income:

1. Go to the Transaction menu.  
2. Click the Add Transaction button
3. Enter the transaction detail.
4. Click the Date field box to enter the correct month.
5. Hit Save.

Once completed, make sure to categorize your transaction as Business Income. You can browse this article for additional insights: Manually add transactions in QuickBooks Self-Employed.

On the other hand, if you're recording multiple income transactions, you can import it using a CSV file. First, determine the date range of the income transactions you want to record. Then, download it from your bank and review its file format. You can use either of these:

You can use this article for more detailed steps in the importing the transactions: Add older transactions to QuickBooks Self-Employed

Also, you visit these articles to learn more about tracking your income and expense transactions:

• About SA103F Categories
• Three tax calculations to help you at tax time
• Categorise and edit transactions in QuickBooks Self-Employed

Know that I always here to help if you have other questions. I'm just a few clicks away.