I have French customer and they never ask me a Certificate of Residence, and I bill with an offshore corp in Singapore and I'm not resident there.
Edit : Are you French ? If not, maybe your French Customer just want to protect themselves.
You have a link in legifrance or in the DTA treaty ? Because I have see nothing about that in the DTA treatyI'm surprised your french customer did not ask it to you (or they are ignorant about it). FR companies need the COR certificate to claim tax benefits under the FR/SING DTA...
What Money have you available in order to setu a Singapore company? I have still to learn what benefits some get with such an entity beside lots of expenses to adent and tax!???Information coming from accountant.
I'm interested into Sing. Can you PM?