When Are Property Taxes Due in Montrose County, Colorado?

Under Colorado law, you can pay property taxes in full by April 30 or in two equal installments, the first on or before the last day of February and the second by June 15. Full payments made after April 30 accrue 1 percent interest per month starting May 1. The Montrose County Treasurer's Office is at 320 S. 1st Street, Suite 200, and can be reached at (970) 249-3565.

What are the payment deadlines?

The Colorado statute that sets the schedule, C.R.S. § 39-10-104.5, says taxpayers may pay in full or in two equal installments:

• One payment: by April 30, with no interest.
• Two payments: the first on or before the last day of February and the second by June 15.
• Small bills: taxes totaling less than $25 cannot be paid in installments and must be paid in full by April 30.

Gunnison County and Hinsdale County both publish the same February, April and June dates, which is a good sign the schedule is uniform across the Western Slope. Still, confirm your due dates and any county-specific details with the Montrose County Treasurer.

What happens if I pay late?

Per the statute, if the first installment is late, interest of 1 percent per month accrues from March 1 until payment, though no interest accrues if the first installment is paid within 30 days after the treasurer mails the tax statement. If the second installment is late, interest accrues at 1 percent per month from June 16. A full payment made after April 30 accrues 1 percent per month from May 1, and partial months count as whole months. If you are worried about a late payment, call the Treasurer before the deadline.

Who do I contact in Montrose County?

The Montrose County Treasurer's tax records site lists:

• Phone: (970) 249-3565
• Address: 320 South 1st Street, Suite 200, Montrose, CO 81402
• Hours: listed as 7:30 a.m. to 4:30 p.m., Monday through Thursday (confirm before you go)
• Online: treasurerweb.montrosecounty.net, where you can print tax notices, receipts and statements of taxes, with a link to an online payment vendor

I did not find due dates or payment instructions on the county's tax records page itself, which is why I am relying on the state statute and the neighboring county pages for the dates.

When do tax bills arrive?

Colorado counties generally mail property tax statements in January, which is when Gunnison County and Hinsdale County say they send theirs. If you have not received yours by early February, call the Treasurer for a duplicate, since not receiving a bill does not remove your responsibility to pay.

How is the bill calculated?

Colorado taxes are your home's actual value times the residential assessment rate, times the mill levy for your taxing districts. For 2026, the Colorado Division of Property Taxation lists the residential local government assessment rate at 6.80 percent after a 10 percent reduction of the first $700,000 in actual value. School districts use a separate rate on a different state page. For a full walk-through, see my post on how property taxes work in Montrose County.

What should buyers know about taxes at closing?

Property taxes in Colorado are generally paid in arrears, which means the bill you pay in 2027 is for the 2026 tax year. Your closing documents typically prorate taxes between the seller and buyer. I recommend you:

• Ask for the latest tax statement. It shows the actual bill, not an estimate.
• Ask your title company to confirm taxes are paid. Unpaid taxes can follow the property.
• Ask your lender about escrow. Many lenders collect taxes monthly in your payment.
• Remember reassessment. Your first bill after buying may differ from the seller's.
• Check special districts. Fire, water or metropolitan districts can add to the levy.

What if I use an escrow account?

If your lender escrows, the lender pays the county from your account and you do not send a payment yourself. You are still responsible, so check your annual escrow statement and confirm that the county shows the taxes as paid. If you own your home free and clear, mark the deadlines on your calendar.

Can I pay online?

The county's tax records page links to an online payment vendor. Ask the Treasurer which methods are accepted and whether any fees apply, since vendors can charge a processing fee.

What is the bottom line?

Remember three dates: the last day of February, April 30 and June 15. Pay in full by April 30 or split into two payments, and call the Treasurer's Office if anything is unclear. I am not a tax advisor.

Frequently asked questions

When are property taxes due in Montrose County?

By April 30 in full, or in two equal installments: the first by the last day of February and the second by June 15.

What is the late interest rate?

1 percent per month under C.R.S. § 39-10-104.5.

Where is the Montrose County Treasurer?

320 South 1st Street, Suite 200, Montrose, CO 81402; (970) 249-3565.

Can I pay in installments?

Yes, unless your total tax is under $25, in which case it must be paid in full by April 30.

Connect with a great real estate agent in Montrose, Kelsey Loftis with Crystal Peak Properties.