How do I get back Canadian tax withheld at the wrong rate?
By applying to Canada for a refund of the excess, supported by evidence that a lower rate was the right one. The application is built around specific amounts: the slip that reported the payment, the identity of the payer, the character of the amount, and your residence at the time it was paid. It is not a return, and it does not reopen your Canadian tax position generally. It asks for the difference between what was taken and what Canada was entitled to take. The work before filing matters more than the form itself, because an application that cannot be matched to what the payer remitted will sit unresolved.
What do I need before I apply for the refund?
Four things, in order of how often they are missing. The slip or equivalent record showing the gross amount, the code and the tax withheld. Evidence that you were resident in the other country under that treaty's own test, which is not always the same as being taxed there. Evidence that you were the beneficial owner of the amount rather than a nominee or a conduit. And some confidence that the payer actually remitted the tax to Canada, because the claim is checked against the payer's account and not against your slip. Chase that fourth one first if the payer was a small company.
How long does a non-resident withholding refund take?
Longer than a return, and the time is not really about processing. Each application is examined on its own facts, and two things slow it down: whether the residence and beneficial ownership material answers the question as asked, and whether the amount claimed can be traced to what the payer reported and remitted. Applications where the payer's record is tidy and the treaty position is plain tend to move through. Applications resting on a slip alone, or on a payer that remitted under the wrong account or the wrong period, come back with questions, and each round of questions costs more time than preparing the evidence properly would have.
Can the payer just fix it instead of me claiming a refund?
Sometimes, and it is worth asking, because it is the cleaner outcome. While the year is still open to the payer, a payer that over-withheld can often correct its own records and its slip, so the money is reconciled where it was taken. That route belongs to the payer and not to you, so the request has to be made to them and made early. Once the year has closed out at the payer's end, the recipient's own refund application is the route that remains. Ask the payer first, and prepare the application as though the answer will be no, because most often it is.
Do I file one application or one for each slip?
Think of the claim as attaching to amounts rather than to a year in the abstract. It is tied to a particular payer, a particular kind of payment, and the records that report it, and that is how it is verified at the other end: against that payer's remittances. Rolling several payers or several kinds of income into a single figure is what makes a claim unverifiable, and an unverifiable claim is examined rather than paid. Keep one claim to one payer and one income stream, attach the record behind every amount in it, and leave the examiner nothing to reconstruct.
Why was my refund claim refused when the treaty gives a lower rate?
Almost never because the treaty says something different from what you read. Refusals cluster on three things. Residence: whether you were a resident of the other country under the treaty's own definition, which can fail even for someone plainly taxed there. Beneficial ownership: whether the amount was yours, rather than passing through you to someone else. And character: whether the payment was really of the kind the article you relied on covers, because the payer's code and the economic substance sometimes disagree. A refusal usually points at which of the three it is, and the useful response answers that question rather than restating the rate.
What is withholding tax?
Tax the payer deducts and remits before you receive the money, so collection does not depend on the recipient filing. On cross-border payments — dividends, interest, royalties, rent, pensions, fees for services — it is charged at a statutory rate on the gross amount, which a treaty often reduces. Because it is computed on gross rather than net, the amount withheld frequently exceeds the real tax, and an elective return or refund claim recovers the difference. See withholding review.
How do families with assets in two countries handle inheritance?
With paperwork built for both systems rather than one. In practice that means wills that work where each asset actually sits, an executor with authority a foreign bank or land registry will accept, clearance certificates before the estate distributes so the executor is not left personally exposed, and an estate tax exposure calculation done while the person is alive and can still act on it. Doing it afterwards costs more and forecloses most of the options. See cross-border wills and trusts.
