jboneill wrote:Going to Atlanta to expand my business and will be financed by a US partner.
So you have some sort of work authorization?
Can I buy and car and insure it without difficulties with my BC/Canada drivers license?
You can buy a car no problem, getting insurance though will be hard. When I bought a car in Atlanta the insurance agent said I had 90 days to show them a Georgia DL. I think you can get insurance with an out-of-State licence but it's more expensive.
Can I open a bank account, business or personal?
Yes, make sure you ask for a W-8BEN from the bank. It is tricky without a social security number, but it is possible. You can't open a business account unless your business has an EIN, which means essentially your business has to register with the IRS to payroll tax withholding (equivalent of a business number).
Can I get credit? eg. purchase a car or home
Maybe, without an SSN it will be very hard though.
Can I apply for a Georgia drivers license?
Depends on your status in the US, just as a regular B visitor, no you can't. If you have some sort of work status that lets you stay a year or more then yes you can.
I plan to be there for 4 or 5 months and then will be back in BC. Are there any problems with that?
Not really, sounds like a lot of effort for not much benefit, imo.
What kind of response should I give to the border US Immigration questions at customs?
It's not clear exactly what you're going to do so it's impossible to say.
However from the sounds of it you may well need work authorization, the first thing to do is to bang "B-1 NAFTA visitor entry" into a search engine and read about what you are legally allowed to do purely as a visitor.
You can't just up and start working in the US, and if you establish an office in the US or you do most of the work there you have a "permanent establishment" there, which entails a substantial amount of tax paperwork.
Even if not, any US-source income is subject to US income taxes (and social security taxes if you're an individual taxpayer). There is an exemption if you are in the US less than 90 days a year and you earn less than $10,000 while working in the US and are directly employed by a Canadian company, but very seriously you need to consider the tax implications of starting a business in the US or expanding one into the US as the tax implications are numerous and complex.
Have a read of this for starters:
http://www.cra-arc.gc.ca/E/pub/tg/p151/README.html
It mentions various other publications in there you will want to read.
Steve.