They will also have T-4 returns for you. Possible alternatives include the appointment of a resident Canadian trustee, or converting the RRSP to debt instrument investments. RRSP While in USA . The information here can be a little technical, but if you read it a couple of times, it starts to make sense. Information supplied below is based on second hand information.
Any income earned in the USA is subject to regular USA taxation.
So, if you are a part-owner of a business in Canada, or have a rental property in Canada, you may also be taxed on that income during the period you are a USA resident. Again, consult a tax expert. This excludes any RRSPs held in Canada of course. They have a variety of tax shelters. Both have conditions and limitations.