Do you display your GST/HST number in your listings?

[biglittleape]

I sell on .com and wondering if I have to display the GST/HST number on the listing or if there's a way to send it to Canadian customers automatically when they make a purchase.

I get very little Canadian sales, maybe 5%

[recped]

My GST number is shown on the invoice/packing slip that is included with every order.

There is no need or requirement to post your GST number on your listing pages.