Small Supplier - do I need a registration number

Shopify Staff (Retired)
Shopify Staff (Retired)
1 0 0

I am currently trying to set up taxes in Canada and am having some issues.

According to this link I am a small supplier and do not have to register for a registration number. However it seems Shopify requires a registration number to charge taxes.

Do I have to have a registration number?

Community Moderator
Community Moderator
3512 281 675

Hi Adva, 


Nick here from Shopify. 


Great question. Taxes can be difficult to figure out, even on the best of days. The first thing I always say and the message I want to get across is to visit and talk to a professional accountant or your local tax office about this. I would personally register for taxes in the off chance my store/ business would grow where I would end up not being a small supplier anymore. But I completely understand why you wouldn't if you don't need to. 


You should be able to update taxes regardless of registration. Can you explain where exactly you are running into this problem and perhaps share a screenshot (please blank out any details which don't need to be seen) to give a better understanding of where this error is? Something to note id that doesn't automatically update non-US tax rates. This is something you would have to manually adjust in your tax settings.


You can also read the guide for setting up taxes for non-US countries here which might shed some light on the problem you are incurring also. 


Hopefully, this helps and looking forward to hearing from you. 

All the best, Nick

Nick | Community Moderator @ Shopify 
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Shopify Staff
Shopify Staff
63 1 10

This is an accepted solution.

Hi Adva!

If you are a small supplier, you may not have to charge GST/HST until you are no longer a small supplier. You can choose to voluntarily register with the CRA if you expect that you will exceed the small seller criteria. You can find more information about registration here:

If you are a small supplier who does not have a registration number, you may not need to charge taxes yet - so for now you can safely turn those settings off. Once you've registered for GST/HST - you can return to this section, enter in your GST registration number and we will automatically charge the correct GST and HST for you as required.

Here's a help center link with additional information:

Let me know if you have any more questions :) 

New Member
3 0 0

even this applies to international small business people too ?


3 0 1



I am trying to find info about registration number to no avail so I figured I will reply to this thread.


I already have a 9 digit GST registration number. However, when I go and enter it, it would say invalid as Shopify asks for a format like this: 123456789 RT 0001.

How do I find the "RT 0001"?


Thank you!