I have created and invoice without sales taxes. My customer has paid it. Now I need to cancel this invoice, credit the customer and create a new invoice. How I do that?

Hi there, 

Creating an invoice for your customer is made simple in QuickBooks Online. It's important that your invoice is created with all the proper information, such as Sales Tax. I'll explain how you can delete an invoice, create a customer credit, and recreate your invoice. 

Deleting an invoice: 

1. Click the Sales tab on the left menu.

2. Select Invoices.

3. Locate your invoice from the list.

4. Click More at the bottom of the page.

5. Select Delete. 

Create a customer credit: 

1. Click the Create (+) icon at the top of the page. 

2. Select Credit Memo.

3. Choose your customer from the top drop-down menu.

4. Enter all necessary information. 

5. Click Save and Close. 

To create a new invoice: 

1. Click the Create (+) icon at the top of the page. 

2. Select Invoice.

3. Choose your customer from the top drop-down menu.

4. Enter all necessary information.

5. Click Save and Close. 

That's all there is to it. Take a look at this article for steps on how to apply your credit memo: Enter and apply a credit memo or delayed credit.

If you have any other questions, please don't hesitate to reach back out. 

Cheers.