Where do I start if my Canadian dividends are being over-taxed?
Start with the payer, not with a form. The rate is set by whoever pays the money, from the documents it holds about you before it pays, so the first step is to find out what each Canadian payer currently believes about your residence. Then split the problem in two: the future, which is fixed by lodging a valid declaration of entitlement; and the past, which is a separate application for the excess already withheld and has its own deadline. Dealing with the future first is not procrastination. It is the half that stops the problem growing.
Which documents should I gather before contacting a Canadian payer?
Three groups. Evidence of where you live and since when, because entitlement turns on residence in a treaty country. The statements for each Canadian account showing the gross amount, the rate applied and the date of each distribution, because both the claim and its deadline are driven by those dates. And the account paperwork itself, since a joint account, a corporate holding or a nominee name changes who has to sign the declaration. Assemble these before the first conversation and the payer usually needs one exchange with you rather than four.
Should I fix the paperwork first or claim the refund first?
Fix the paperwork first. A refund application deals with money already gone; a declaration lodged with the payer stops the same excess being withheld from the next distribution, and distributions keep arriving while a claim sits pending. There is also a practical reason: the evidence assembled for the declaration is largely the evidence the claim needs, so that order means gathering it once. The one thing that overrides the sequence is a deadline about to pass on an older year, in which case the claim goes in and the declaration follows immediately afterwards.
Who actually applies the treaty rate, me or the payer?
The payer, and that single fact reorders everything else. Canadian dividends and interest paid to a non-resident are taxed by deduction at the moment of payment, so by the time the money reaches you the rate has been decided and the tax remitted. You cannot elect a better rate at the year end. You can lodge the declaration that lets the payer choose it next time, or apply to recover what was taken in excess. Everything you do at the start is therefore aimed at the payer file rather than at a return.
I hold several Canadian accounts — do I fix each one separately?
Yes. Each payer withholds from its own file and none of them talks to the others, so a declaration lodged with a bank does nothing for a broker, a transfer agent or a private company paying you interest. Make a list of every Canadian source of investment income you hold, including the ones you no longer think about, and work through it one payer at a time. It is also the point at which people find an account still carrying a Canadian address, which is the commonest reason a rate looks wrong in the first place.
What happens if I just leave the wrong rate in place?
Nothing dramatic, which is the problem. The withholding is treated as settling your Canadian tax on that income, so no assessment arrives and nothing chases you. Each distribution simply goes out with more tax deducted than the treaty allows, and each year the oldest recoverable year falls out of reach while a new one joins the list. The loss is quiet and cumulative. Because the correction lives in the payer file rather than in a return, it will not fix itself at any point, however long you wait.
What is an ITIN and how do I get one?
An individual taxpayer identification number, for people who have a US filing or reporting reason but cannot obtain a Social Security number — a non-resident claiming a treaty rate or a refund, a foreign spouse on a joint return, a dependant, a foreign seller of US property. You apply on Form W-7 with certified evidence of identity and foreign status, normally submitted with the return that creates the need. It is a tax number only, and it confers no immigration or work status. See ITIN applications.
When does my Canadian tax residency actually end?
On the day your residential ties are severed, which is a question of fact rather than of the date on the boarding pass. The CRA weighs the significant ties first — a dwelling available to you, a spouse or common-law partner, and dependants in Canada — then secondary ties such as licences, memberships, accounts and provincial coverage. Keeping a home available while your family stays is the pattern that most often means residency never ended at all. See departure tax on leaving Canada.
