Eunice here from the social care team at Shopify. I'd be happy to give you some guidance on the SSN requirement for using Shopify Payments US.
The SSN requirement only applies to US citizens using a Shopify Payments account that matches their country of citizenship (the US). However, If you are not a US citizen, then you may still be able to use Shopify Payments US.
Do you have US offices, US retail locations, rented, or owned warehouse space in the US? If you can prove this, along with your EIN number, then please get in touch with Shopify support so we can review your documentation.
If you do not have physical operations in the US, you will not be eligible to use Shopify Payments US. In this case, you could either use a third party payment provider, or, set up Shopify Payments in the country where you are located, if it is offered.
Please note we are unable to provide tax advice. If you have questions about your responsibility in relation to reporting taxes to your local or a foreign government you will need to consult a tax professional.
Thanks for your response.
If you don't reside in the US there is a workaround; If you don't reside in the US, but do have an operational presence there, then you may still be eligible to use Shopify Payments. Even if you sell online only, the most important factor is whether your business has physical operations on US soil.
If you do reside in the US, there is no workaround. You must have an SSN number to use Shopify Payments and there is no bypass for this. The thread you saw within the community may be outdated, feel free to send it to me and I shall take a look.