Do I have to file an NR4 Summary if I issued only one slip?
Yes. The summary is what reconciles the slips issued for a year to the tax actually remitted for that year, and a single slip still has to be reconciled. Volume changes nothing about the obligation; it only changes how long the work takes. The more useful question is whether the one slip and the remittances agree, because a single-slip year is where a mismatch is most often a simple timing difference, a payment posted to the wrong period or a remittance made under a second account. We reconcile the account before filing rather than filing and waiting to be asked about the difference.
We withheld and remitted all year, why is a summary needed as well?
Because remitting and reporting answer different questions. The remittances show money reaching the CRA; the slips show who it was withheld from and on what kind of payment; the summary is the document that proves those two sets of figures describe the same year. It is a control document rather than a formality, and the reconciliation is the point of it. In our experience that is also where under-remittance first becomes visible to the payer itself, which is an argument for preparing it properly rather than transcribing the slip totals and signing.
Can our bookkeeper file the NR4 Summary, or does the company have to?
Someone else can prepare and submit it, and often does. What cannot be delegated is the liability behind it. The payer is liable for tax it should have withheld, so the figures on the summary are the payer's figures whoever types them. That has a practical consequence worth acting on: the person preparing the summary usually has the slips and the remittance record, but not the contracts that decide what each payment was. We ask for both, because a summary that reconciles perfectly to slips carrying the wrong income codes reconciles to the wrong answer.
Our remittances do not match the slips we issued, what should we do?
Find out which side is wrong before you file anything. A difference has a small number of ordinary causes: a payment credited but not paid, a remittance posted to the wrong period or the wrong account, a payee treated as resident for part of the year, or withholding applied at a rate the payment did not attract. Each is fixed differently, and only the last is a real under-remittance. We work the difference back to individual payments, then either correct the slips or quantify and settle the shortfall. Filing a summary that carries an unexplained difference invites the question you have not yet answered.
Does a year with no payments still need an NR4 Summary?
The obligation is decided by the facts of the year rather than by tax owing, so a nil position does not remove a filing requirement on its own, and an open withholding account with nothing to report is a position worth settling deliberately rather than by silence. Two things are worth separating: whether there really were no reportable amounts, and whether the account should stay open at all. Amounts credited rather than paid are the usual surprise in a year the payer thinks is nil. We test that first, then advise on filing or on closing the account.
Can our payroll provider handle the NR4 Summary with our other filings?
It can be done alongside them, but it should not be treated as one of them. Payroll reporting describes employment, and non-resident slips describe rent, dividends, interest, royalties and pensions paid to people outside Canada, so the codes, the rates and the underlying documents are all different. What we see when the two are handled by the same process is a non-resident stream reported on whichever slip the software offered. We keep the reconciliation separate: the summary is built from the payment stream and the remittance record for that account, and nothing else.
How do I get back tax withheld in another country?
By the route that country provides, and it is rarely automatic. Where an elective return is available — on rent or pension income, for instance — filing it recomputes the tax on net income and refunds the difference. Where it is not, you file a refund claim with the withholding authority, supported by evidence of your residence and entitlement to the treaty rate. Both take time, which is why fixing the rate before payment is worth more. See withholding refund and recovery.
How do I report the sale of a foreign property?
On your residence-country return, as a disposition, with proceeds and cost base converted at the rates for their own dates. Separately, the country where the property sits may require its own return and may hold back tax at closing until a clearance or certificate is issued — Canada does this for a non-resident vendor, and the United States withholds on a foreign seller of US real property. Those steps have their own deadlines, often before closing. See clearance certificates on a property sale.