Bernalillo County's 2026 property tax bills go out on November 1, and the first half is due November 10. State law requires the Treasurer to mail one paper bill by that date. If you bought a home in Albuquerque in 2025, this is probably the first bill that reflects your purchase. The number you saw on the listing was the seller's bill.
A buyer gets a lender estimate, a cost breakdown, and a tax figure from the listing, then plans a monthly budget that holds up for a year. The second year's bill tells a different story. That comes straight from how New Mexico limits residential values, and if you see how it works you can estimate your own number before you make an offer.
The cap belongs to the owner, not the house
New Mexico's valuation statute says residential property is valued at "current and correct" value. In most years, though, the assessed value can grow by no more than the higher of 3% over the prior year or 6.1% over two years earlier. The limit stops applying in a few cases: a first assessment, most new physical improvements, a change of use or zoning, and an ownership change in the prior year. After a sale, the property goes back to current and correct value. The statute defines a change of ownership broadly but carves out some transfers, including certain ones between spouses, to children, and into qualifying revocable trusts.
So each year a seller owns a home, the cap holds the assessed value below the market a little more. Owning a long time doesn't change the house. It does change the house's tax record. When the home sells, that accumulated discount ends, and the new owner starts over at market value. In an October 2025 release, the Bernalillo County Treasurer's office put it plainly. Homeowners should expect their value to rise "by a maximum of 3% every year after the first year as the assessed owner," while new homeowners "could experience tax lightning because the assessed value is brought to market value."
That's why two similar houses on the same Albuquerque street can carry very different tax bills. One has had the same owner for fifteen years. The other sold last spring.
Why the reset arrives a year after closing
The Bernalillo County Assessor assesses property to the owner of record, in its condition, as of January 1. Values are set from sales of the previous year. A home that closes in 2026 is still assessed to the seller for the 2026 tax year. The buyer's reset comes in a later tax year.
Here is the sequence for a buyer who closed in 2025, using the county's own calendar:
- Closing, sometime in 2025. The 2025 tax bill still reflects the seller's capped value.
- January 1, 2026. The buyer is now the owner of record, and the prior-year sale lifts the cap.
- April 1, 2026. The county mails 2026 Notices of Value.
- May 1, 2026. The deadline to protest the value and to file paperwork for listed exemptions.
- November 1, 2026. The 2026 tax bill is mailed. The first half is due November 10, and late fees on it begin December 10. The second half is due the following April 10.
The higher value showed up on a notice in April, and the window to protest it closed on May 1. The bill showing what that value costs in dollars arrives six months later. A buyer who set the April envelope aside learns the real number when the protest window has been closed for half a year.
The Treasurer's office also notes that after an October sale or purchase, the new owner's name may not appear on the bill until the next tax cycle. A new online feature lets owners view and print a copy of their bill, with amounts updating to the new year on or before November 1.
What the county's own example shows
Last fall the Treasurer's office published two side-by-side bills from the same taxing district, A1A C, for tax years 2024 and 2025. One property stayed under its cap. The other changed hands.
| County example, district A1A C | 2024 taxable value | 2025 taxable value | 2024 bill | 2025 bill |
|---|---|---|---|---|
| Same owner, capped | $66,330 | $68,319 | $2,798.53 | $2,886.76 |
| New owner, reset to market | $65,326 | $86,991 | $2,756.18 | $3,675.74 |
Both properties started within about $40 of each other on their 2024 bills. A year later, the capped home's bill rose about $88. The reset home's bill rose $919.56, roughly a third. The tax rate barely changed, moving from 42.191 to 42.258 mills. Almost all of that difference came from the change in owner.
The capped example shows something else too. The 3% limit applies to value, not to the bill. Rates and new taxing districts can still push a capped owner's bill up. When the 2025 rates came out, Treasurer Tim Eichenberg described one new levy this way:
"Ciudad is a whole new taxing entity that will add a mill rate of .095 to many Bernalillo County residents' property tax bill. While lower tax rates will lessen the overall impact of a bill increase, the new taxing district and regular increases in assessed property value could still drive up your tax bill."
He said that in the county's October 2025 release.
Running a 2026 number on a house you are considering
You can estimate the reset yourself, because the 2026 rates are set. The New Mexico Department of Finance and Administration certified Bernalillo County's 2026 mill rates on September 1, 2026. The County Commission accepted them on September 9 for the bills going out now. For the City of Albuquerque residential district on the DFA certificate, the rate is built from these pieces:
- 41.149 mills for state, county, city, Albuquerque Public Schools, Central New Mexico Community College and UNM Hospital
- 0.845 mills for the Albuquerque Metro Arroyo Flood Control Authority
- 0.250 mills for Ciudad Soil and Water Conservation District
- 6.069 mills for the Middle Rio Grande Conservancy District
- 48.313 mills grand total for the district
The county notes that rates depend on which taxing entities a parcel sits within, and that some owners pay extra levies such as the Middle Rio Grande Conservancy District. That one line accounts for about six mills of difference between homes in the same city.
The math is short. Taxable value is one-third of assessed value, and exemptions come off after that. The bill is taxable value times the rate, divided by 1,000. Here is an illustration only: an Albuquerque home assessed at $400,000 after a sale.
- Taxable value: $133,333
- Without the conservancy levy, at 42.244 mills: about $5,633 a year
- With the conservancy levy, at 48.313 mills: about $6,442 a year
- With the $2,000 head-of-family exemption, those drop to about $5,548 and $6,345
The Assessor's own value won't necessarily match your purchase price. Put that figure next to the seller's current bill and you have the size of the reset. The Assessor's public records site also offers a buyer tax estimator. You enter a price, and it applies current and correct assessment for an ownership change. The county warns that actual values and rates may differ and that exemptions and special assessments aren't included.
What softens the number, and what has not changed
Exemptions lower taxable value, but they don't restore the cap. The county lists a $2,000 head-of-family exemption for New Mexico residents who qualify, including single persons. It lists a veteran exemption of up to $10,000 off taxable value, plus a separate disabled-veteran exemption for a primary residence based on disability rating. Owners who are 65 or older, or disabled, and under an income limit can apply for a Value Freeze on a primary residence. The Assessor's FAQ says the freeze stops valuation growth but not changes in the tax rate. County pages list different income limits, so confirm eligibility with the Assessor's tax savings programs page directly.
The rule itself held steady this year. In the 2026 session, HB 103 proposed keeping the residential limit in place when zoning changes but the use stays residential. It failed in the Senate on February 17, 2026.
Disagreements over value do get resolved. Assessor Damian Lara told KOAT in November 2025 that the county assesses more than 285,000 properties each year. Protests rose from about 3,200 the prior year to about 4,200 in 2025, and roughly 80% ended in agreement. That only helps if the protest is filed during the spring window.
Questions to answer before you write an offer
- What is the seller's current bill, and how long have they owned the home?
- What does the county estimator show at your expected price?
- Does the parcel carry the Middle Rio Grande Conservancy District levy?
- Which exemptions might apply to your household, and when are they due?
- How will your lender estimate taxes for escrow in year one, and how will that change in year two?
FAQ
I closed in 2026. When will I see the reset? The county assesses to the January 1 owner and values property from prior-year sales, so a 2026 purchase would usually appear on the following year's Notice of Value and tax bill. On the county's annual calendar, notices go out in April and bills are mailed November 1.
Does the cap start again after the reset? Yes. After the year the property is brought to current and correct value, the same annual limit applies to the new owner.
Does moving a home into a revocable trust count as a sale? The statute excludes certain qualifying revocable-trust transfers. In December 2025 the county responded publicly to a class-action suit over how those transfers were assessed. A real estate attorney can review your specific transfer.
This post is general information, not legal, tax or financial advice. Please confirm your own situation with the Bernalillo County Assessor, the Treasurer, or a qualified tax professional.
When we price a home with Property Partners, Inc., we look at the seller's tax history next to a reset estimate for that parcel. That way the monthly cost you plan for in year one still holds when the second bill arrives. If you're comparing Albuquerque homes or getting ready to sell one, start with an instant home valuation and we'll walk through what the tax line means for that address.
