Do I file Form RC1 even if no tax is owed?
Identifier or registration obligations of this kind are generally required on the facts rather than on the tax result, so a nil position does not remove one. New Canadian businesses and foreign businesses acquiring Canadian filing, payroll or sales-tax obligations.
What happens if I have missed Form RC1 for several years?
Missed years are dealt with as a package rather than one at a time, because the route chosen for the first year affects the relief available for the rest. We map the years and the obligations before anything is filed.
Is Form RC1 the same as the other reports I already file?
No. Registers a business number and the CRA programme accounts a business needs. Satisfying a different obligation, even one covering the same accounts or entity, does nothing for this one.
Does a foreign company need a Canadian business number?
It depends on what the company actually does here, not on where it is incorporated. The business number is the identifier the CRA attaches its programme accounts to — payroll, sales tax, corporate filings — so the real question is whether any of those obligations has arisen. A company selling into Canada may have a sales-tax obligation and no payroll one; a company sending staff here may have the reverse; a company with neither may still need an identifier to file a treaty-based return or recover tax withheld at source. Work out which obligations exist first. The registration then follows that answer instead of creating it.
Which CRA accounts should I open when I register a business?
Open the ones the business will actually use. Registration creates an identifier and then attaches programme accounts to it, and each account carries its own filing expectations from the day it opens — a payroll account expects remittances and a year-end return, a sales-tax account expects a return for every reporting period whether or not there was activity. Accounts opened speculatively do not sit quietly; they generate requests, then notices, then assessments raised without your figures. Decide the obligations first, register for those, and add accounts as the business genuinely acquires new ones.
Should I open a payroll account before checking for a permanent establishment?
No, and this is the expensive order to get wrong. Whether a foreign employer has a permanent establishment in Canada, and what its workers' position is under the treaty, is a question to answer before anything is registered. Opening a payroll account announces that Canadian employment obligations exist and starts the expectation of remittances and returns, which can commit the company to a treatment that a review of the facts would have avoided. The review itself is not long: what the staff do here, for how long, under whose direction and using whose premises. Do that first, then register for what the answer requires.
What happens if I registered for an account I do not need?
It does not go away on its own. An open programme account is a standing expectation of returns, so the CRA keeps asking for them, and unanswered requests turn into assessments raised in the absence of your figures. The fix is to bring the account current and then close it properly, which usually means filing the outstanding periods, showing why there was no activity, and confirming the closing date in writing. It is tidier than it sounds, but it is work the original decision could have avoided — which is the argument for registering deliberately rather than ticking every box on the form.
Does registering for GST/HST mean I have a permanent establishment?
No. These are separate questions answered under separate rules. A sales-tax registration follows from what you supply and where you supply it. A permanent establishment is an income-tax and treaty concept about the fixed place, or the dependent agent, through which a business operates in a country. A company can have one without the other in either direction. The confusion matters because people either register for sales tax and assume a corporate filing obligation follows, or avoid registering because they fear one. Take the two decisions separately, on their own facts, and record the reasoning for each.
When should a foreign business register rather than wait and see?
Register when an obligation has arisen or is about to, and not before. Waiting past that point is the costlier mistake, because obligations run from the facts rather than from the registration: a company that should have been remitting is exposed for the whole period before it got round to registering, and penalties and interest attach to that period rather than to the day it woke up. Registering early, on the other hand, creates filing expectations that may never otherwise have existed. The useful discipline is to review what the business is doing in Canada at each change in activity, and register at the change rather than at the year end.
How does the treaty tie-breaker work when both countries say I am resident?
As a sequence, stopping at the first test that gives an answer: where you have a permanent home available; if in both or neither, where your centre of vital interests is; then habitual abode; then nationality; and if all of those tie, the two tax authorities decide by agreement. It is evidential rather than elective — you do not choose your treaty residence, you demonstrate it, which makes the record of homes, family and time the substance of the claim. See tie-breaking dual residency.
Do Canada and the United States share tax information?
Yes, through more than one channel. The treaty has an exchange-of-information article that supports both routine and on-request exchange. Separately, an intergovernmental agreement has Canadian financial institutions identify US-reportable accounts and report them to the CRA, which passes them to the IRS, with the reverse flow for Canadian residents. Most other country pairs use the Common Reporting Standard for the same purpose. See FATCA reporting.