Manitoba Property Assessment Appeal 2027 — Reassessment Notices and How to Challenge

The 2027 Reassessment Is Coming

The Provincial Assessment Office began mailing property assessment notices for the 2027 reassessment cycle starting June 22, 2026. These notices establish updated market valuations that will determine your property tax base for the 2027 tax year.

If your assessed market value went up, your property taxes will likely increase — even if mill rates stay flat. And starting in 2027, the HATC credit includes a new phase-out for properties assessed above $1,000,000.

What Your Assessment Notice Shows

The notice lists your property's market value as determined by the Provincial Assessment Office. Manitoba uses a 45% portioning rate for residential properties, so a home assessed at $400,000 market value has a portioned assessment of $180,000. This portioned figure is what mill rates multiply against.

Compare the new assessed value to your previous one. A jump from $320,000 to $400,000 in market value means your portioned assessment rises from $144,000 to $180,000 — a 25% increase in the base that every levy multiplies against.

When Assessment Affects Your Credits

For most homeowners, the reassessment doesn't change HATC eligibility. The credit still applies to school taxes up to $1,700 in 2027, regardless of your home's value — as long as it's below $1,000,000.

The new wrinkle for 2027: Bill 53 introduced a proportional phase-out between $1,000,000 and $1,500,000 assessed value. A property assessed at $1,250,000 gets its HATC reduced by half ($850 instead of $1,700). At $1,500,000 or above, the credit disappears entirely.

If your reassessment pushes you into that range, the stakes of an appeal are higher than just the tax rate difference — you're also fighting for the full HATC.

How to Appeal

Each municipality sets an annual filing window for a formal application for revision to the Board of Revision. Dates vary by municipality; check the current local deadline. The process:

1. Review your notice carefully. Check that the property description, land area, and building details match reality.
2. Gather comparable sales. The strongest appeals show recent sales of similar properties in your area at lower values than your assessment.
3. File the appeal with the local Board of Revision before the municipal deadline. Fees vary by municipality; some charge no filing fee.
4. Attend the hearing. Present your evidence. The Board issues a written decision order.

If you disagree with the Board of Revision's decision, you can appeal further to the Municipal Board.

Should You Appeal?

Not every increase warrants an appeal. If property values across your neighbourhood all rose by a similar percentage, the relative tax burden hasn't changed — only the absolute dollar amount. Appeals succeed when your property was assessed higher than comparable homes, or when the assessment is based on incorrect property information (wrong square footage, missing depreciation factors, counted renovations that didn't happen).

What This Means for Seniors

If you're 65 or older, the reassessment doesn't change the Seniors School Tax Rebate eligibility rules — those depend on your age and family net income, not your property value. But a higher assessment means higher school taxes, which means the $235 rebate covers a smaller share of the increase.

Our Manitoba Seniors Property Tax Credits Guide includes an assessment appeal preparation worksheet that helps you organize comparable sales evidence and calculate whether the potential tax savings justify the appeal process.

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