Is there a late filing penalty for Form NR7-R?
No, and the reason is structural. A refund claim is a request for money the CRA is holding, not a return reporting tax you owe, so there is no balance for a late-filing penalty to be calculated on. The cost of being late is the claim itself: recovering over-withheld Part XIII tax runs on its own time limit, and once the year is closed the money stays where it is. Nothing is charged, and nothing comes back either.
I found an old slip in a drawer — is it too late to reclaim the tax?
It depends on the year the tax was remitted rather than the year you found the slip. Each remittance has its own clock, which is why a bundle of old slips usually divides into years that can still be claimed and years that cannot. The first piece of work is dating each one and checking it against the limit, before any time goes into assembling treaty and residency evidence for a year that is already closed.
What if my Canadian return is late as well as my refund claim?
Then two different regimes apply and only one of them carries a penalty. The refund claim has no penalty but a time limit. The return does have one: for the 2025 tax year the CRA late-filing penalty is 5% of the balance owing plus 1% of that balance for each full month the return is late, to a maximum of twelve months. That is calculated on tax owing, so a return with no balance is not where the exposure lies.
Does the penalty double if I have filed late before?
Not in the way it is usually described. Two conditions have to be met together: the CRA must have issued a demand to file, and it must have charged a late-filing penalty in any of the three preceding tax years. Having filed late before, by itself, is not the trigger. Where both are met, for the 2025 tax year the penalty becomes 10% of the balance owing plus 2% for each full month, to a maximum of twenty months rather than twelve.
Does the CRA keep adding to the amount while I sort this out?
The penalty does not compound and it stops at its cap. Interest compounds daily on the unpaid balance and carries on after that. On a file where over-withheld tax is being reclaimed at the same time as a balance is owing, that shapes the order of work: the interest-bearing balance is dealt with first, and the refund claim runs alongside rather than being treated as the thing that pays it, because the two are settled on separate timetables.
Can I stop this happening again instead of claiming every year?
Yes, and it is the cheaper answer. A declaration of treaty eligibility in the payer’s hands before they pay applies the treaty rate at source, so there is nothing to reclaim and no time limit to watch. Reclaiming afterwards means one claim per remittance, each with its own slip and residency evidence, for money you were entitled to keep in the first place. Where payments recur, fixing the certificate is the last piece of work rather than the first of many.
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 Part XIII withholding tax in Canada?
Part XIII is the Canadian charge on certain amounts paid to non-residents — rent, dividends, interest, royalties, pensions and similar passive income. The payer withholds and remits it, and it is a flat charge on the gross payment rather than on profit, which is why a non-resident landlord can be withheld on far more than the net rental result. Treaties reduce the rate and elective returns recover the excess. See the section 216 return.