Hi guys

I've just signed up with Clickbank using a US mail forwarding address and they require any foreign affiliates who utilize a US address to fax the W-8BEN form (https://www.clickbank.com/accounting.html#taxid).

I've actually filled a W-8BEN form before with other institutions, but since in this case I'm using a mail forwarding address, I would like to know whether to fill the "mailing address" with the US mail forwarding address or just to leave it empty (which means it's the same as my permanent residence address)?

Thanks in advance.