What is an NR6 and do I need one for my Canadian rental?
It is an undertaking given before the year starts, by a non-resident owner of Canadian rental property together with a Canadian agent, which lets the Canadian tax be withheld on the net rent rather than on the gross. Without it the default applies: tax is taken from the rent as it arrives, before the mortgage interest, the property taxes, the insurance and the repairs have been paid out of it. You need one if the costs of holding the property are a real fraction of the rent, which on a financed property they almost always are. The trade is that you commit to filing a Canadian return for that year.
Can I file the undertaking part-way through the year?
The undertaking is forward-looking, so it governs the rent that comes in after it is in place, not the rent already collected. For amounts already withheld on the gross, the route to the correct amount of tax is your Canadian return for the year, or a refund claim, and both arrive long after the money has gone. That is the practical cost of missing it: the same tax, but a year later and at a higher cost to establish. If the year has already begun, the useful work is usually to get the undertaking in place for the next one and fix the current year through the return.
Why is my agent withholding tax on the gross rent?
Because that is the default rule, and it applies to the rent as it arrives rather than to what is left after the costs of holding the property. The withholding takes no notice of the mortgage, the property taxes, the insurance, the management fee, or the repair that cost a month's rent. On a financed property that routinely means Canada is holding tax on an amount far larger than the profit the year actually produced. The undertaking is what changes the base the withholding is computed on. Until it is in place, your agent is doing exactly what it is required to do.
Who has to sign it, me or my property manager?
Both. It is a joint undertaking: the non-resident owner undertakes to file a Canadian return for the year, and the Canadian agent undertakes to withhold and remit on the net amount and to account for the year. That second half is a real obligation taken on by the agent, which is why agents are sometimes reluctant to sign and why some managers refuse as a matter of policy. If yours does, the conversation to have is about the estimate of expenses the withholding will be based on. An agent who can see the numbers behind the estimate is usually the one who signs.
Does the undertaking mean I do not have to file a Canadian return?
It means the opposite. The concession runs on the promise: withholding is computed on the net rent because you have undertaken to file a Canadian return for that year and settle the tax properly there. Miss the return and the basis of the arrangement falls away, which leaves the agent, who relied on it when remitting less, in an uncomfortable position as well as you. Treat the undertaking and the return as one commitment made in two parts, the second falling due once the year it covers has ended. If you are not going to file, the gross basis is the honest choice.
My spouse and I own the property jointly, do we each need one?
The withholding follows each non-resident owner's share of the rent, so the undertaking has to as well. One owner's undertaking does not carry the other's share. Where both owners are non-resident, expect two, each covering its own share, with the agent withholding separately on each. Where one owner is resident in Canada and the other is not, only the non-resident's share is in the withholding system at all, and the agent needs to be told the split in writing before the first rent cheque rather than at year end. Get the ownership shares documented first. The paperwork is simple once they are settled.
Is my foreign pension taxable?
Usually in at least one country, and which one depends on the treaty article covering pensions — some give the taxing right to the country paying it, others to where you live, and several treat government service pensions differently again. Withholding at source is common and often reducible by treaty, with an elective return recovering an over-deduction. See the pensions article.
What is cross-border tax?
Cross-border tax is what applies when income, assets or people touch more than one tax system at once — someone living in one country and earning in another, a company selling or hiring abroad, a family holding property in a second country. The work is rarely one country's rules applied harder; it is reconciling two sets of rules and claiming the relief that stops the same income being taxed twice at full rates. See what we do.
