As a Sole Trader, how do I enter my annual taxation payment into quickbooks?

Welcome to the Community, sales251!

We can create an expense account to allocate the annual tax payment made. Let me show guide you on how to do it. 

1. Go to Accounting tab and select Chart of Accounts.
2. Select New. 
3. On Account Type, select Expenses. 
4. On Detail Type, select Taxes Paid.
5. Enter a Name of that account. 
6. Select a Default GST Code if needed.
7. Select Save and Close. 

Once done, we can create an expense transaction and use the account we've created in Chart of Accounts. Here's how to create an expense transaction: 

1. Select + New.
2. Select Expense.
3. Enter the required details like Payee, Payment account and Payment date.
4. On Category details section, select the expense account created.
5. Enter Amount and GST code (if needed).
6. Select Save.

Hope this helps. Have a fantastic day!