Front Range
A Boulder address change should reach Assessor and Treasurer
A Porch Note from Colorado Porch — plain-English local details for all 64 Colorado counties.
A property tax notice is only helpful if it reaches the right mailbox. The home stays put; the person who needs the bill often does not.
One form covers both offices that need to know. Boulder County routes its property mailing-address update through a service called Just Appraised, and a single change sends the new address to both the Assessor and the Treasurer. You register or log in, then use the form labeled “Change of Address.” There is no separate trip to each office.
A move is only one reason to file it. A trust change, a divorce, a death in the family, a rental conversion, or a second-home purchase can all leave the tax notice headed somewhere stale while the house itself never moves. The mismatch is easy to miss because nothing about the property looks different.
Filing the form helps notices arrive, but it is not the same as confirming the bill. After a closing or an address change, update the county record and then look up the tax account directly to see what is owed and when. Mailing-address cleanup and an actual lookup do two different jobs, and the second one is the one that catches a payment about to slip.
Sources
Official or primary sources used for this note. Local details can change, so confirm before acting.