Adding expenses to QBO

Hi Bart, thanks for your post & welcome to the Community

If you only have a few expenses per month from the account, it isn't necessary to connect the bank in QuickBooks.

Instead, create an account in your Chart of accounts to post these to. To do this, navigate to the Cog > Chart of accounts > New, select the relevant Account Type and Detail Type on the drop-downs, then re-name as you'd like it to appear. 

You can then select this account in the Payment account field when entering the expense manually.