How entry paid transaction ?

1. Click the Plus icon (+) on the top menu.
2. Choose Invoice.
3. Complete the fields with necessary information.
4. Click Save and close.
5. Then, go to Receive Payment section by clicking the Plus icon (+) on the top menu.
6. Choose a customer, then select an invoice/s you want to close out.
7. Select the payment method and account where the payment will be deposited to.
8. Click Save and close.

You can also create sales receipt to record an immediate payment. Just follow the To create a Sales Receipt section in the Should I use an Invoice or a Sales Receipt? article.

If the paid transaction is a credit card payments, you can check out this article on how to record them: https://community.intuit.com/articles/1777536.

To learn more about managing money in and money out in QBO, you can check out the articles in this link: https://community.intuit.com/browse/quickbooks-online-intl-moneyin-moneyout.

I'm confident the steps I've provided helps you record the paid transaction. Just reply to this post if you need anything else with recording payments in your account. I'd be glad to help.