I'm trying to include fees in a sales receipt for example total ticket sales (income account) minus fees (expense account). It wont let me add the expense in a sale.

Hello kneelin,

Welcome to Community!  I can understand the need to apply an expense to the sales receipts.  QuickBooks Online has the flexibility you need, to accomplish your goals seamlessly.  I would be glad to assist!

Adding a service fee to your forms can be managed by creating the service item.  Here's how; 

1. Open your Settings ⚙ and choose Products & services

2. Select New, then Service

3. Enter a Name for the service such as service fee

4. From the Category ▼ dropdown menu, select the category that best describes the fee. Find out more about item categories.

5. Complete the remaining fields as you feel necessary

6. Hit Save and close.

That's it!  You're ready to create a Sales receipt and include the service fee.  This amount can be manually adjusted when needed.

If you have any other questions, feel free to reach back out.  We are always happy to help!