The short answer to your question is "yes", you should file documents with the corporations bureau changing your company's official name if you intend to use a name that is different than what is currently on record. Can you casually use the new trade name without filing the appropriate records? There nothing unlawful about doing that. However, current law permits you to enter into contracts under your official name. If you use a name that does not match your official name, there is a small chance that the contract could be deemed voidable or unenforceable. It will cost you a small fee to file a "changes docketing statement" and amended "certificate of organization". It's probably best that you do so.
Answered on Nov 13th, 2013 at 1:52 PM