Albuquerque property owners have two Bernalillo County tax deadlines to watch right now

Albuquerque-area property owners in Bernalillo County have two separate tax-related items landing at once this week: 2026 notices of value are now arriving by mail, and second-half 2025 property taxes are due Friday, April 10, 2026.

Bernalillo County paired both reminders in its April 1 BernCo at a Glance bulletin. The overlap matters because the two items come from different offices and do different jobs. A notice of value is not a tax bill, and receiving one does not by itself mean your payment changed.

What the county is telling owners now

The Bernalillo County Assessor’s Office handles valuation. On the assessor’s public access site, the county says that office determines property values, applies legal exemptions and prepares the tax roll for the county treasurer. It also makes clear what the assessor does not do: compute tax bills or collect property taxes.

That makes the mailed notice of value a record-check document. For homeowners, landlords and business property owners, the practical step is to review the parcel information, assessed value and any exemptions on file and compare them with county records.

What the tax bill is — and who handles it

The payment side runs through the Bernalillo County Treasurer. The treasurer’s property tax system is the county’s official place to search an account and pay online. For owners who pay 2025 taxes in two installments, the second half is due Friday, April 10, 2026.

KOAT previously reported that owners paying in installments have a final grace period until May 10, 2026, before penalties apply. But the near-term date that matters this week is still April 10.

In other words, Albuquerque property owners should not mix up the two county actions now arriving at the same time. The assessor’s notice is for checking value and records. The treasurer’s account is where you verify whether a payment is still due and make that payment.

What to check this week

Start with the assessor side: parcel ownership, property address, assessed value and exemption details. Then check the treasurer side for payment status, amount due and the county’s accepted payment options.

Both county online systems are the official lookup paths, although the assessor and treasurer pages were showing temporary maintenance notices when checked on Saturday, April 4. If that continues, owners may need to try again later or contact the appropriate office directly.

The bottom line for Albuquerque: a notice of value is for reviewing valuation and records, not for paying taxes. If you still owe the second half of your 2025 property taxes, the deadline to watch is Friday, April 10, 2026.

Sources

• BernCo at a Glance Apr. 1
• Bernalillo County Assessor portal
• Bernalillo County Treasurer property tax portal
• KOAT property tax deadline report
• Bernalillo County Treasurer portal
• Treasurer
• Paydici
• Bernco
• Bernco