Form T1-ADJ — adjustment request · low-cost, fixed fee

Objection, appeal or adjustment obligations of this kind are generally required on the facts rather than on the tax result, so a nil position does not remove one. Individuals correcting a filed Canadian return within the reassessment window.

Missed years are dealt with as a package rather than one at a time, because the route chosen for the first year affects the relief available for the rest. We map the years and the obligations before anything is filed.

No. Requests an adjustment to a filed individual return — to add a credit, correct income, or fix a residency-driven computation. Satisfying a different obligation, even one covering the same accounts or entity, does nothing for this one.

Yes, by asking for the return to be adjusted rather than filing a second one. An adjustment request is directed at a return already filed and asks the CRA to change a specific part of it: add the credit, correct an income figure, or fix a computation that turned on residency. It has to fall within the reassessment window for that year, which is the first thing to check. The request carries whatever evidences the change, whether that is the slip, the receipts or the recomputation, because an adjustment with nothing attached is a request to take your word for it.

This is the distinction that matters most here. An adjustment is the right tool for an error and the wrong tool for unreported foreign income. Where income was never declared, a disclosure application preserves relief that an ordinary adjustment does not, and quietly slipping the income in through an adjustment can forfeit that relief before anyone has assessed whether it was available. The difference is not a preference about paperwork; it changes what is on the table. Before anything is filed we establish which of the two routes the facts actually call for, and say so in writing.

There is a reassessment window, and whether a year sits inside it depends on the year, the type of taxpayer and what has happened on the file. It is not a single figure that can be quoted usefully across every situation, so the working answer is that the years have to be checked one at a time before anything is prepared. Where several years are involved it is common for some to be open and others closed, which changes what can be corrected and sometimes changes the route entirely. We check the window first and set out which years are live.

A residency-driven computation is one of the things an adjustment request is designed to correct, but it is rarely a single-line change. Residency drives what income was taxable in Canada, which credits applied, and how foreign amounts were treated, so correcting it usually means recomputing the return rather than amending one entry. The evidence matters as much as the computation: the dates, the ties kept and given up, and where tax was paid elsewhere. We rebuild the year on the correct basis first, then request the adjustment with the recomputation and the supporting record behind it.

A request is directed at a particular return, so a correction spanning several years is a set of requests rather than one, each with its own supporting evidence and each tested against the reassessment window for that year. In practice this is useful rather than tiresome, because the years often do not have the same answer. One may be open and another closed; one may turn on a missing slip and another on a residency question. Treating them separately keeps a straightforward correction in one year from being held up by a contested point in another.

Whatever establishes the change. For an omitted credit that is usually the receipt or the slip and a short statement of where it belongs in the return. For a corrected income figure it is the document showing the right amount and, if the original was wrong for a reason, an explanation of the reason. For a residency-driven correction it is the recomputation plus the factual record behind it. The useful discipline is preparing the request so that a reader unfamiliar with your file can follow the change from the evidence without asking for anything else.

It starts with facts rather than structures: which countries have a claim on you, what each one taxes, and where the two overlap. From there the decisions are about order and timing — which country taxes first, where relief is claimed, and whether a filing or a certificate has to be in place before money moves rather than after. Most of the value is in the sequencing, because relief claimed late is usually relief recovered slowly. See international tax planning.

Missed years are handled as one package, not one at a time, because the route chosen for the first year determines the relief available for the rest. Each country has a disclosure or relief programme with its own conditions, and entering the right one — before the authority contacts you — is usually what keeps penalties down. Filing quietly outside a programme forfeits that protection. See catching up on missed returns.