Form 2290 in Colorado: Schedule 1 & Heavy Truck Registration
What Colorado requires when you register a vehicle at 55,000 pounds or more — who checks your Schedule 1, where, and what else the state wants alongside it.
Registering agency
Colorado Division of Motor Vehicles and county motor vehicle offices
You register at
County offices
Federal threshold
55,000 pounds
Where Colorado wants your Schedule 1
Colorado splits the counter by where you operate: intrastate commercial registration goes through your county motor vehicle office, while interstate carriers set up their IRP account with the state DMV. The federal Heavy Vehicle Use Tax applies at 55,000 pounds gross or combined gross weight, and the receipted Schedule 1 is what proves it was paid.
Whichever counter you end up at, the document is the same: the Schedule 1 the IRS returns after processing your Form 2290, either manually stamped or carrying the e-file watermark. E-filing returns it within minutes, which matters when registration or a plate renewal is waiting on it.
Heavy trucks are taxed on what you actually paid
Colorado’s Specific Ownership Tax normally values a vehicle at 75% of MSRP — but under C.R.S. 42-3-106 that flips for heavy equipment: a truck with a declared empty weight above 16,000 pounds is valued at its actual purchase price instead, explicitly excluding the federal excise tax on the first retail sale. For a heavy tractor, the annual bill tracks the real price you paid.
Apportioned (IRP) registration in Colorado
If you run in two or more jurisdictions, you register through the International Registration Plan rather than as a purely intrastate vehicle. In Colorado that is handled by Colorado DMV Vehicle Services, IRP Unit (Lakewood). Proof of HVUT payment is part of the IRP application and renewal — an apportioned account cannot add a taxable vehicle whose Form 2290 is unpaid.
The federal side, unchanged by state
| Tax period | July 1 – June 30 |
| Deadline | August 31 for vehicles in service in July; otherwise the last day of the month after first use |
| E-file required | When reporting 25 or more taxed vehicles |
| Suspended vehicles | 5,000 miles or less (7,500 agricultural) — no tax, but you still file and still get a Schedule 1 |
Colorado Form 2290 questions
Where do I show my stamped Schedule 1 in Colorado?⌄
Do intrastate-only trucks in Colorado need Form 2290?⌄
Who handles apportioned (IRP) plates in Colorado?⌄
Official Colorado sources
- Colorado Division of Motor Vehicles and county motor vehicle offices — commercial vehicle registration
- IRS Trucking Tax Center
State registration rules and fees change — confirm current requirements with Colorado Division of Motor Vehicles and county motor vehicle offices before filing or registering. This page covers the federal Form 2290 as it applies to Colorado registration and is not tax or legal advice.
File once, register anywhere
E-file Form 2290 with Send 2290 and get the IRS-watermarked Schedule 1 Colorado accepts — usually within minutes of IRS acceptance.