Welcome to the community, d-l-boucher,
I'm glad to have you join us and really appreciate that you've chosen QuickBooks Online to manage your business's books. The built-in sales tax module is ideal for keeping track of your provincial tax codes, your remittances, and the sales tax refunds or payments. I'll gladly go over this with you.
It sounds like you've already been trying out filing sales tax and been discovering what the module can do. You're right, recording a payment in the sales tax module records the payment to your account, but doesn't give the option for printing a cheque. In light of this, there are two options.
The first is to write the cheque outside of the program, the old fashioned way. Simply use the amount from QuickBooks Online and write it out on the cheque to give to the government.
The other option is to create a cheque expense in QuickBooks, print it, and then delete the cheque afterward. Deleting this cheque from your books afterwards is important so you don't have a duplicate payment that's offsetting your books. Here's how you would do it.
Once you've printed it, go back and delete the cheque transaction. This article can walk you through how: Void or delete transactions in QuickBooks Online
It sounds like being able to easily print a cheque for your sales tax payment is important to you. This is exactly the kind of feedback we like to hear and I'd love for you to take a moment to share it through QuickBooks Online's feedback feature. The comments left there are forwarded to product development, and we use them to enhance what QuickBooks can do for you. Learn the steps here: How do I submit feedback?
Don't be afraid to ask more questions. Have a great weekend!