I've got you covered, @Martr0n.
Let’s head to the Banking menu so you can create checks for recording payments and managing your expenses in QuickBooks Desktop (QBDT). I’d be glad to walk you through this process.
- Navigate to the Banking menu, then Write Checks.

- Select a BANK ACCOUNT from the dropdown menu from which the funds will be withdrawn.
- Select the payee's name from the PAY TO THE ORDER OF dropdown.
- Choose the Expenses tab to enter shipping charges, liabilities (for payments related to loans), and any other expenses not tied to specific items in QuickBooks.
- Or, the Items tab to select the appropriate item from the dropdown list.
- Fill in any other necessary information.
- Once you're done, click Save & Close or Save & New.
For further details on working with checks, including how to modify and print them, please refer to this article: Create checks in QuickBooks Desktop.
After that, let's use the keyboard shortcut Ctrl+R or navigate to the same menu and click Use Register to review transactions.

Alternatively, you can use the shortcut Ctrl+A to go directly to the Chart of Accounts, where you'll select an account and search for the check transaction under that account.
I'm also sharing this article to guide you in keeping track of your sales and expenses using predefined reports: Customize customer, job, and sales reports in QuickBooks Desktop.
Keep us posted in the comments below if you have further questions about tracking your expense transactions, including locating them in the register. I'm always here to help.