Assessment and tax
The tax bill you saw belonged to the seller.
New Brunswick limits how fast the value your tax is calculated on can climb. A long-held home is often carrying years of that shelter. Selling it ends the shelter, so the first bill under new ownership can land well above the number attached to the listing. Here is how the rules actually read.
Two rules, working separately
People usually assume one thing changed. Two did, and they are unrelated to each other.
Rule one
The assessment cap resets
Section 15.71(6) of the Assessment Act directs that a property transferred during a year be assessed the following year at its real and true value, outside the capped figure the previous owner had built up. Service New Brunswick puts it plainly on its valuation page: properties sold in the previous year are excluded from spike protection.
Rule two
The seller’s credit ends
The Residential Property Tax Credit is applied against the provincial portion of a bill. Service New Brunswick states that it remains on the property only until a change in ownership or occupation occurs. It does not travel with the deed, and the province tells buyers that they or their lawyer should apply for it.
One thing that gets overstated
You do not lose the protection permanently. The reset applies to the year following the transfer. After that the capped growth rule runs again for you, measured from the new base.
The transfers that keep the cap
Regulation 84-6 prescribes the exceptions, and every one of them is a transfer that was never a sale in the ordinary sense. An arm’s length purchase is not among them.
- Deeds of confirmation, rectification or modification
- Transfers to yourself to consolidate or subdivide a parcel
- Registering an easement or a similar right
- Transfers from an executor or administrator to beneficiaries or heirs
- Changes between joint tenancy and tenancy in common
- Transfers of marital property between spouses
Your notice carries two different numbers
Service New Brunswick separates the property assessment value from the value for taxation, and says the value for taxation is the one used to calculate the levy. The cap operates on the second. That is why a notice can show a market figure rising while the number actually driving the bill sits still.
The base date matters as much as the figure. The Assessment Act requires property to be assessed at its real and true value as of January 1 of the year before the assessment year, so a 2026 notice is looking back to the start of 2025 rather than to the day it lands.
Spike protection, in the province’s own words
Service New Brunswick calls it the Spike Protection Mechanism, and its valuation page says any increase greater than 10 per cent is phased in over time. It has run since the 2013 tax year for owner-occupied homes and was extended to all property types from 2025. New construction and improvements are added back at full value on top of the capped base, so a renovation or an addition sits outside the shelter too.
The statute keys the calculation to figures from two years before the assessment year, in a form that does not survive plain-language paraphrase. This page cites the 10 per cent framing to Service New Brunswick and leaves the formula alone rather than walking you through arithmetic that would be wrong in the details.
2026 is a freeze year, and it ends
Separately from the standing cap, section 15.72 of the Assessment Act deems a property’s 2026 assessment to be its 2025 assessment. Service New Brunswick said 90 per cent of property owners will see their 2026 value for taxation remain the same as their 2025 value. It is written for one year only.
The freeze carries the same carve-outs. It does not apply to property sold or transferred in 2025, and it does not apply to new construction or to improvements on part of a property, whether or not a building permit was issued. For 2027 Service New Brunswick says spike protection will be in place again for eligible properties, still excluding recent sales, new construction and major improvements.
If you bought during 2026 itself, ask Service New Brunswick directly how your 2027 assessment will be handled. Section 15.71 does not operate in 2026, and the treatment of a 2026 sale is genuinely unsettled on the face of the statute. I would rather send you to the province than guess at it here.
The credit, and why buyers get caught by it
Service New Brunswick says the credit is applied against the provincial portion of your property taxes, and that you remain responsible for all of your municipal property tax. Eligibility is tested on January 1 against the person the property is assessed to, and nobody can hold more than one principal residence at a time for credit purposes.
The part that catches people is administrative rather than legal. The province’s consumer page says a principal residence owner automatically qualifies. Service New Brunswick separately tells purchasers to be sure that they or their lawyer applies. Qualifying and having the credit applied to a bill are two different steps, and the gap between them is where the surprise lives.
Buying part way through a year brings a partial credit for the portion of the year you both own and live on the property. The proration runs by day count from the later of two dates: when you established the new principal residence, and when you stopped maintaining a home you were already credited for. That second date is the one move-up buyers miss.
2026 rates where I work
Municipal councils set these in their annual budgets after the province hands them their assessment base each autumn. Every figure below is the municipal portion alone, per $100 of value for taxation, taken from the municipality’s own published rate or its adopted council minutes.
| Municipality | Residential | Non-residential | How it was set |
|---|---|---|---|
| Saint John | $1.535 | — | Down from 1.550 in 2025 |
| Quispamsis | $1.2599 | $2.1418 | Held at the 2025 rate, approved 18 November 2025 |
| Grand Bay-Westfield, Ward 1 | $1.275 | $2.1675 | Approved 10 November 2025 |
| Grand Bay-Westfield, Ward 2 | $0.7932 | $1.3484 | Approved 10 November 2025 |
| Rothesay | $1.1700 | $1.989 | Held at the 2025 rate by council motion, 10 November 2025 |
How a rate is applied
Divide the value for taxation by 100 and multiply by the rate. On a Saint John home with a 2026 value for taxation of $300,000 the municipal portion works out at $4,605. That is the city’s share on its own, not a tax bill: the provincial side and the credit both sit on top of it.
Hampton works differently
The 2023 local government reform merged the former town with parts of several local service districts, and the areas carry different rates. In the former service district areas the residential rate includes a provincial component of $0.4115, because the province still maintains the roads there. The town publishes the split, and it is the figure to trust.
On the provincial side the Real Property Tax Act sets $0.5617 per $100 for most residential property through 2026. That is the figure the Residential Property Tax Credit is applied against on a qualifying principal residence. It is not the whole of what the province charges, so treating the credit as taking the provincial side to zero would be wrong. Your own notice shows the real breakdown, and the province bills and collects the municipal portion as well, which is why one bill arrives rather than two.
The calendar you are actually living in
January
Assessment notices are mailed. The value for taxation on that notice is what your bill will be calculated from.
30 days from mailing
The window to ask for a Request for Review. It is free and can be filed online or by phone, and the exact deadline is printed on your notice. Filing one does not defer payment.
March
Tax bills follow for most owners. Some are billed later, including owners whose property changed in a way that needs additional billing, and recent buyers are disproportionately in that group.
Closing day adjustments are a separate matter and settle the current year between buyer and seller. The Financial and Consumer Services Commission describes the practice in its buying guide, and the arithmetic belongs to the lawyers handling your closing. It has nothing to do with the assessment reset in the year that follows, and assuming the closing statement dealt with that is a common way to be caught out. Closing costs generally are covered separately.
Look up the address you care about
General rules only get you so far. This searches the province’s own records for the assessed value, the tax as levied on the current owner, and the last registered sale.
Contains information licensed under the Open Government Licence - New Brunswick. The tax figure is what the current owner was levied, which after everything above is precisely the number not to read as your own. More on reading these records
Questions people actually ask
Why is my property tax higher than what the seller was paying?
Two separate rules can do it. Under section 15.71(6) of the Assessment Act, a property transferred during a year is assessed the following year at its real and true value, outside the capped figure the previous owner had built up. Service New Brunswick says the same thing in plain words on its valuation page: properties sold in the previous year are excluded from spike protection. Separately, the Residential Property Tax Credit stays on a property only until ownership or occupation changes, and that credit is applied against the provincial portion of the bill.
What is the Spike Protection Mechanism?
It is the province's limit on how fast the value used for taxation can climb. Service New Brunswick says any increase greater than 10 per cent is phased in over time. It has applied since the 2013 tax year for owner-occupied homes and was extended to all property types from 2025. It is set aside for the 2026 freeze year and applies again for 2027.
Does spike protection transfer to me when I buy?
No. The Assessment Act directs that a transferred property be assessed the following year at its real and true value, and only a short list of transfers in Regulation 84-6 avoids that. They are things like an estate distribution to beneficiaries, a transfer of marital property between spouses, a correcting deed, or a change between joint tenancy and tenancy in common. An ordinary purchase is not on the list.
Do I lose spike protection forever once I buy?
No, and this gets overstated. The reset applies to the year following the transfer. After that the capped growth rule runs again, measured from the new base.
What was the 2026 assessment freeze?
Section 15.72 of the Assessment Act deems a property's 2026 amount of assessment to be its 2025 amount. Service New Brunswick said 90 per cent of property owners will see their 2026 value for taxation remain the same as their 2025 value. It is written for 2026 only. Property sold or transferred in 2025 is carved out, as is new construction and improvements to part of a property.
Does the seller's tax credit come with the house?
No. Service New Brunswick states that the credit remains on the property until a change in ownership or occupation occurs. It also tells purchasers directly that when buying a property that is to be your principal residence, you or your lawyer should apply for the credit. Qualifying for it and having it applied are two different things.
I bought part way through the year. What happens to the credit?
Service New Brunswick says a buyer may be eligible for a partial credit for the portion of the year they both own and live on the property. The Residential Property Tax Relief Act prorates it by day count, and the count runs from the later of establishing the new principal residence and ceasing to maintain a previously credited home. That second date catches move-up buyers who kept a credited home for a while. Service New Brunswick can tell you where you stand.
Does the credit cover my whole property?
It does not extend to more than half a hectare of the land the residence sits on, which matters on the larger lots common in Hampton, Grand Bay-Westfield and the rural edges of Rothesay and Quispamsis. On a duplex, a triplex or a house with a second unit, it covers only the portion the owner occupies.
Are rented homes taxed at a different provincial rate?
A rented single-family house, duplex, triplex, cottage or apartment building sits in the same statutory rate group as an owner-occupied home and takes the same provincial residential rate. What separates the two bills is the credit, not the rate class. A higher provincial figure circulates online as a non-owner-occupied residential rate, and that is a misreading: it applies to a different set of categories entirely.
Can I challenge an assessment?
Service New Brunswick runs a free Request for Review that can be filed online or by phone, but it has to be made within 30 days after the assessment notice is mailed. The specific deadline is printed on the notice. Filing one does not defer payment, and under the Real Property Tax Act taxes are due and payable on the day the tax notice is mailed.
When do notices and bills arrive?
Assessment notices are mailed in January. Tax bills follow in March for most owners. Some are billed later, including people whose property changed in a way that needs additional billing, and recent buyers are disproportionately in that group.
How much will my bill actually go up?
This page cannot tell you, and anyone who gives you a number without looking at the property is guessing. It depends on the gap between that property's value for taxation and what it would sell for, which is specific to the address. Look it up on the property records page to see the assessed value and the tax as levied on the current owner, then speak to Service New Brunswick about your own position.
What this page cannot tell you
Worth saying out loud rather than burying. It cannot tell you how much a given bill will rise, because that turns on the gap between one property’s value for taxation and what it would sell for. It cannot tell you what your assessment will be after a purchase: the law fixes the standard and the valuation date, not the number. It cannot tell you whether Service New Brunswick will apply the credit once your deed is registered, because the province’s own pages point different ways on that and neither describes the operational step.
For your own assessment and credit position, Service New Brunswick is the right call. For anything about your tax situation, speak to your lawyer or your accountant. I am a REALTOR® with REAL Broker, not a tax adviser, and this page describes how the public system works rather than what you should do about it.
Sources
Every statement above traces to one of these. Checked August 13, 2026. The rates and the 2026 rules have a shelf life: councils set 2027 rates through October and November, and the freeze expires with the 2026 tax year.
- Assessment Act, RSNB 1973, c A-14 · Government of New Brunswick
- Real Property Tax Act, RSNB 1973, c R-2 · Government of New Brunswick
- Residential Property Tax Relief Act, RSNB 1973, c R-10 · Government of New Brunswick
- New Brunswick Regulation 84-6 · Government of New Brunswick
- How your property is valued · Service New Brunswick
- Understanding your assessment notice · Service New Brunswick
- Value for taxation freeze: frequently asked questions · Service New Brunswick
- Residential Property Tax Credit · Service New Brunswick
- Request a review of your assessment · Service New Brunswick
- How property tax works · Government of New Brunswick
- Property tax billing cycle · Government of New Brunswick
- Guide to buying a home in New Brunswick · Financial and Consumer Services Commission
Check the tax before you write the offer
On a house that has not changed hands in twenty years this is worth doing early, while it can still shape the number you offer. It takes me a few minutes and there is no charge for the conversation.
