How do I tell the Canada Revenue Agency that they're sending someone else's documents to my address?
"Maybe just put all his correspondence back in the Post Box and mark it   ""Wrong address""? Precisely. Without opening. Just tell the postman that that person doesn't live there and have it returned to sender. The Revenue will figure it out. Most definitely do not accept any certified or registered mail not addressed to you personally."
"Did it show just your address, or was your name on it as well?   You didn't share how long you've lived at the address either, so it makes me wonder whether a former tenant is the one who filed that paperwork.  It's also possible that someone used your address when making a filing.  Whether that was deliberate or accidental is hard to discern, as is their intent if it was intentional. It could be accidental -- someone picked ""CA"" for California when they meant to pick ""CO"" for Colorado or ""CT"" for Connecticut...These things do happen.  It can't make you feel any better about the situation though. You should be able to go online to the California Secretary of State's website (here) and look up everything filed by the LLC with the state.  That will show who the founders were and everything else that is a matter of public record on the LLC.  At the very least, you can obtain the registered agent's name and address for the LLC, which you can then use to contact them and ask why your address is listed as the LLC's business address. Once you have that info, you can then contact the Secretary of State and tell them it isn't you so they can do whatever is necessary to correct this. This doesn't sound like a difficult matter to clear up, but it's important to do your homework first and gather as much information as you can before you call the state.  Answering ""I don't know"" won't get you very far with them compared to having the best answers you can about where the mistake started. I hope this helps. Good luck!" The Canada Revenue Agency does indeed put out just the guide you want. It's at http://www.cra-arc.gc.ca/E/pub/tg/rc4070/rc4070-e.html - you should always take a good look at URLs to make sure they're really from the government and not from some for-profit firm that will charge you to fill out forms for free services. It covers ways to structure your business (probably a sole proprietor in your case), collecting and submitting GST or HST, sending in payroll remittances (if you pay yourself a T4 salary), and income tax including what you can deduct. It's a great place to start and you can use it as a source of keywords if you want to search for more details. "I suppose for the simple minded it is. ""Less taxes = less revenue = oh no, disaster!"". Which may be true for a small state budget that is often strapped for cash and struggling to get by. Cut revenue at the state level and vital programs suffer.   The federal government on the other hand is a behemoth. It has a lot more sources of revenue than states do. It also has more programs and waste that can be cut, before even considering cuts to social services and entitlement programs, like regulatory agencies.  Down vote me all you want but I find it preferable to have tax money in the hands of citizens and businesses rather than the government. The more money you give to government the more they're going to spend." Transferwise gives an excellent exchange rate and very minimal costs. They save on costs by not actually changing any money; your money goes to someone else in the US, and the Canadia dollars you want come from someone else in Canada. No money changes currency or crosses borders, there is no bank transfer fee (assuming that domestic bank transfers, inside the country, are free), and they give an excellent exchange rate (very nearly the spot rate, I find; far better than many rates I find online for sending money across the border).  I sent money from the UK to Japan with it last week, at a fixed fee of about three US dollars (I was charged in GBP, obviously). About one tenth the cost of an international bank transfer. I just double-checked; at about midday on the fifth of October 2016, they gave me a rate of 130.15 JPY per 1 GBP, and then charged me two GBP to transfer the money. The rate that day, according to xe.com, varied between 130.7 and 132 ; basically, I don't think I could have got a better deal pretty much anywhere. As I type, this very second, they offer 1.33 CAD for 1 USD , and google tells me that this very second, the exchange rate is 1.33 CAD for 1 USD - transferwise is giving the spot price. I don't think you'll get a better rate anywhere else. I am currently dealing with the same issue of having a 1099 reported to the wrong person.  I applied for the square account for my son's business but used my information, which I realized now was a BIG mistake.  I did contact Square by email yesterday, which was Saturday, not expecting to hear from them until Monday, or possibly not at all (wasn't hearing a lot of good things about Square's customer service).  She was most helpful and while the issue isn't completely taken care of, I do feel better about it.  She just had me update the taxpayer information number which then updated the 1099 form. In the event of an audit, you AND your friends need to have already reported the cash the same way in previous tax filings. Even differences between legitimate sources can result in civil and criminal sanctions from the IRS, let alone questionable, dubious and illegal sources. "Your income and expenses for the business should be independent of HST. That is, if you charged somebody 100 + 13 HST, you have revenue of 100. You're going to send the 13 to the government later, it's not part of your revenue. If you go out and buy something for 10 + 1.30 HST, you record 10 as an expense. You're going to take the 1.3 off the 13 you would have sent the government, it's not part of your expenses. And so on.  I am not sure what you mean by ""HST compensation"" but if it came from the government, and it needs to be declared as income, there will be information to that end in the letter that comes with the cheque. (For example, if they pay you interest on your refund, the letter reminds you to include that money in next year's income.)" Normally you could either head down to the office supply store and pick up a copy of a tax program, or you could head over to the IRS office and pick up the instructions and forms. However, in your case you should be talking to a tax lawyer.  The unfiled taxes are bad enough but you own a business outside the USA and most likely have bank accounts also.  That brings you into the realm of FATCA.