Requesting a Review of Your Municipal Assessment: Window, Form, Proof

Many owners know a municipal assessment is not market value, and almost none know there is a procedure to have it corrected. This article is about the procedure, not about comparing the two values, which we cover in municipal assessment versus market value.

It is not a negotiation, it is a procedure

The initial confusion explains most refusals. A negotiation assumes two parties looking for a number acceptable to both. An assessment review is nothing of the kind.

It is a regulated step: filed within a determined window, on a prescribed form, with a fee in most municipalities, and examined against evidence. Nobody at the other end has a mandate to find a compromise with you.

One rule follows, and it saves time: disagreeing with the amount is not a ground. The ground is an error in how the value entered on the roll was determined. Those are two different things, and only the second opens the door.

The filing window: why we publish no date here

The window is set by law and tied to the coming into force of the assessment roll applicable to your property. It is short, it does not extend, and a late filing is inadmissible however strong the file.

We deliberately publish no date in this article. The applicable roll, its date of coming into force and the resulting deadline appear on your assessment notice and are confirmed with the body responsible for assessment in your municipality. A date recalled from memory or copied from another sector would cost a reader a right, and that does not get repaired.

The practical conduct fits in one sentence: on the day your notice arrives, look for the deadline before you look for the amount. The second piece of information is worthless if the first has passed.

What counts as proof

Two families of proof exist, and they are not argued the same way.

The first is comparative: real sales of similar properties, in the same sector, transacted around the roll's reference date, with their characteristics. It is the strongest proof when well built, and the most demanding to assemble, because it requires genuinely comparable transactions rather than merely nearby ones.

The second is factual, and often easier to demonstrate: an inaccurate area on the roll, a wrong room count, a servitude not accounted for, a documented structural defect, an outbuilding that no longer exists. An objective fact contradicts a record, and that is verified without a battle of experts.

The roll's reference date is the notion owners miss most often. The entered value relates to a date earlier than the roll's coming into force, not to the day you read your notice. A recent sale can therefore be a poor comparable, not because it is wrong, but because it falls after the date that matters.

The four arguments that do not work

The amount of your taxes is not an argument. A tax bill is the value multiplied by a rate, and the rate is a municipal budget decision. Challenging an assessment because the bill went up aims at the wrong one of the two factors.

The increase over the previous roll is not an argument. A market may have moved between two rolls, and the entered value be correct despite a large rise. The size of the increase says nothing about the accuracy of the result.

Your neighbour's assessment is the weakest argument available, and the most used. Comparing two assessments compares two estimates: if both are too high, the gap between them proves nothing. And the neighbouring entry may itself be wrong, which does not correct yours.

Your own estimate is not an argument, and the price you paid is one only on a condition: that the transaction sits close to the roll's reference date. A recent purchase against an older roll demonstrates nothing; a purchase contemporaneous with the reference date demonstrates a great deal.

After filing, and the recourse that follows

The assessment body examines the request and responds. Three outcomes exist: an amendment to the roll, a proposed amendment you are free to accept or refuse, or the entered value maintained.

If the answer does not satisfy you, a recourse exists before the competent administrative tribunal. It carries its own deadlines and its own formal requirements, and those deadlines run from the answer you have just received. They are verified at that moment, on the document received, not in anticipation.

One thing deserves saying plainly: the procedure takes time and real preparation. It is worth the effort when the proof is solid, and it is not worth it when the only ground is a feeling that the amount is high. Knowing which of the two cases is yours is precisely what the previous section is for.

The three checks, in order

First, the deadline, on your notice and with your assessment body. It conditions everything else and it is not negotiable.

Second, your property's record on the roll: area, room count, year, outbuildings, particularities. A factual error there is faster to demonstrate than a debate over value, and that is where to start rather than with market comparison.

Third, the roll's reference date, because it determines which sales count as comparables. With those three in hand, you know whether you have a case or an impression, and that is the only question that decides whether to file.