cpa networks only tax us citizens?!?!

so this is the kind of question i'm going to need help from my international blackhatters.

in the case of being a us citizen, before you can receive payment from a cpa network, you need to submit your tax id(social security number). They need this to file with the irs at the end of the year.

From what i understand canadians don't need to submit a tax id of any kind when it comes to canada taxes (don't know if I'm correct about this) but is it true ? do cpa networks not require other countries to enter their tax id info?

is this just a case by case basis or is usa the only one who requires tax info be submitted before payment is sent out?

I'd really like to get some international viewpoints here thanks guys

I have CPA accounts that I get paid where I send the money to a third world country bank (not part of EU) and I don't get taxed. So for sure it's not only US.

but do the cpa networks ask for some kind of tax id from you?

CSalt2 said:

but do the cpa networks ask for some kind of tax id from you?

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No they don't. I think they are only obliged to ask for tax ID from EU countries and US. If you have any doubts, you can ask your AM and he will clear things up for you.

that's because they cannot deduct tax from the earning of citizens of other countries as per the "double taxation avoidance agreement."

Logic: this will lead to double taxation on single earning !