Property Assessment New Brunswick: How SNB Values Your Home and What You Can Do About It

If you are buying your first home in New Brunswick, you will encounter the property assessment system twice: once when it determines your Real Property Transfer Tax on closing day, and again every year when it sets your annual property tax bill. Understanding how Service New Brunswick arrives at that number -- and what to do when it seems wrong -- saves you real money.

How Service New Brunswick Calculates Property Value

Service New Brunswick (SNB) is the provincial assessment authority. Every property in the province is evaluated using Current Value Assessment (CVA) principles, which aim to estimate what a property would sell for on the open market.

Assessors analyze a full year of historical market data including recent comparable sales in the neighborhood, the property's physical characteristics (square footage, condition, lot size, location), and broader market trends across the municipality.

Here is the key timing detail: starting in 2025, assessment notices are mailed in January rather than October. The valuation date is January 1 of the preceding year. So a 2026 assessment relies on market data collected up to January 1, 2025. Property tax bills follow in March.

This structural one-year lag exists so SNB can work with a complete, closed year of market data. But it also means your assessment may not reflect rapid price changes -- whether up or down -- that happened after the valuation date.

The 10% Spike Protection Cap

New Brunswick uses a spike protection mechanism that limits year-over-year increases in assessed value to a maximum of 10% for owner-occupied properties. If your home's actual market value jumped 25% due to a hot market in your neighborhood, the assessment used for taxation purposes only goes up 10% that year.

This protects homeowners from sudden tax shocks during market booms. However, it also means the cap can create a growing gap between your assessed value and actual market value during sustained price growth periods. When you eventually sell, the assessed value may catch up in stages over several years for the next owner.

For first-time buyers, this matters because the property you are purchasing may already have several years of capped increases built in, meaning the assessed value could be well below (or, in cooling markets, above) the actual sale price.

Why the Assessment Matters at Closing

New Brunswick's Real Property Transfer Tax is 1% of the greater of the purchase price or the assessed value. If you negotiate a below-market deal on a distressed property, the assessed value -- not your purchase price -- determines the tax.

Check the assessed value of any property before making an offer. SNB's online property assessment database lets you search by address or Property Account Number (PAN). Knowing the assessed value in advance lets you budget closing costs accurately rather than getting surprised by your lawyer's final statement of adjustments.

How to Appeal: The Request for Review Process

If you take possession of a home and believe the assessed value is too high, you have a statutory right to challenge it. The process has strict deadlines.

Step 1: File within 30 days. You must submit a Request for Review (RfR) within 30 days of the mailing date on your January assessment notice. Miss this window and you lose the right to appeal for that tax year.

Step 2: Gather evidence. You will need your Property Account Number and Access Key (both on your assessment notice), plus documented evidence supporting a lower valuation. Strong evidence includes a recent professional appraisal, documentation of serious structural defects not reflected in the assessment, or recent comparable sales at lower price points.

Step 3: Pay your taxes anyway. Filing an RfR does not pause or defer your tax obligation. You must pay the full amount by the March deadline to avoid monthly penalties of 0.7591% (9.50% annualized) on the overdue balance. If the appeal succeeds and the value is lowered, SNB issues a retroactive refund or credit.

Step 4: Escalate if needed. If the RfR outcome is unsatisfactory, you can appeal further to the Assessment and Planning Appeal Board.

What Buyers Should Do Before Purchase

• Look up the property's assessed value on SNB's website before making an offer
• Compare the assessed value to your intended purchase price to calculate your transfer tax accurately
• Ask the seller or listing agent whether any recent assessment appeals have been filed
• If buying a distressed or below-market property, budget your transfer tax based on the assessed value, not the purchase price

The assessed value is not just an abstract government number. It directly affects what you pay at closing and what you owe every year in property taxes. For a complete breakdown of how these costs fit into your closing budget, the New Brunswick First-Time Home Buyer Guide includes a full cost worksheet with line-by-line estimates.

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