Why when i pay my taxes quick books catergorises them as expenses

It's my pleasure to address your question, cqs2u.

QuickBooks categorises transactions based on the account selected when paying your taxes. 

In case you want to edit it, you can follow the steps below:

1. Go to the Transactions menu.
2. Find the transaction you want to edit.
3. Select the icon to expand the transaction.
4. Edit the transaction name, add notes, or attach a receipt.
5. To change the category, select the link in the Type or Category column. Then select a new category.
6. When you're done, select Save.

You can visit this article to get the list of categories where a certain transaction falls and how to categorise them: Categorise transactions in QuickBooks Self-Employed.

If you need other references for tips on your future task with QBSE, you can check out these helpful links: 

• QuickBooks Self-Employed Overview.
• List of our articles.

Don't hesitate to get back to me whenever you need help with categorizing taxes. I'm always around to help. Have a good one.