Form 2290 in Idaho: Schedule 1 & Registration Rules

Idaho used to be one of the states where you could drop your Form 2290 in the lobby box and let the state forward it to the IRS. That ended February 1, 2024 — and the rest of Idaho’s system has its own wrinkles, starting with a registration split at 60,000 pounds rather than the federal 55,000.

Where do I register a heavy truck in Idaho?

Idaho’s split doesn’t match the federal one. County assessor offices register trucks through 60,000 pounds; above that, registration moves to ITD’s Commercial Vehicle Services (the unit formerly branded Motor Carrier Services — both names still appear on state materials). So the 55,000–60,000-pound band shows its Schedule 1 at a county counter, and everything heavier at ITD. IRP fleets file Schedule A (form ITD-3542) with CVS, and the state’s transactional portal is the Commercial Registration System — the old “Trucking Online” address now just redirects to the CVS page.

One rare pricing detail: Idaho’s intrastate “full fee” registration for trucks over 60,000 pounds is mileage-based — the fee comes from a weight-by-Idaho-miles matrix, so the application asks for your reported in-state distance. Very few states price heavy plates by miles driven.

What proof of HVUT payment does Idaho accept?

Idaho’s wording is precise: a photocopy of Form 2290 Schedule 1 listing the complete VIN and showing the IRS receipt stamp or the e-file watermark. The state’s 2290 bulletin adds two hard rules — it cannot accept a Schedule 1 with errors, and it cannot accept one for the wrong tax period.

On timing, Idaho publishes its grace window explicitly: between July 1 and September 30, proof for the current or prior tax year is accepted; after September 30, only the current year’s Schedule 1 works. ITD even hosts an interactive “HVUT Filing Period Tool” for working out which period a given registration date needs. And suspended-category filers get no shortcuts: for a vehicle filed in the suspended (low-mileage) category, only the Schedule 1 itself is accepted — the newly-purchased alternates below don’t substitute. See suspended vehicles.

The 60-day rule — with a title-application twist

In lieu of the Schedule 1, Idaho accepts a dated bill of sale — or, distinctively, a title application showing the purchase date — if the vehicle was purchased within 60 days of the registration date. The title-application alternate is practical here because Idaho requires titling before registration and county assessors handle both at the same counter. As everywhere, the exception covers the counter only: Form 2290 is still due by the last day of the month following first use. See buying a used truck and due dates.

Idaho stopped forwarding 2290s — February 1, 2024

For years, Idaho Motor Carrier Services would accept your Form 2290 filing — in person, by mail, by email, even in the headquarters lobby box — and forward it to the IRS on your behalf. Effective February 1, 2024, that ended entirely. ITD’s guidance now is blunt: you cannot file your 2290 with the Idaho Transportation Department; file directly with the IRS, and note that payment routes outside the IRS e-file provider system won’t give you an immediate Schedule 1. E-filing returns the watermarked copy within minutes of acceptance — see how to e-file.

What’s federal and doesn’t change in Idaho

• Threshold of 55,000 pounds taxable gross weight — Idaho keys it to combined gross weight (power unit plus trailers plus load), which sweeps in nearly every tractor-trailer
• Tax period July 1 through June 30, due August 31 for vehicles in service in July
• Otherwise due the last day of the month following first use
• $100 at 55,000 pounds, rising $22 per 1,000 pounds, to $550 maximum
• E-filing required at 25 or more taxable vehicles — Idaho restates this in its own guidance
• Suspension at 5,000 miles or less, 7,500 for agricultural vehicles

See what Form 2290 is and tax rates.

What to bring

• A photocopy of your stamped or e-file-watermarked Schedule 1 for the right tax period, with the complete VIN and no errors
• Or, within 60 days of purchase: the dated bill of sale, or the title application showing the purchase date
• For full-fee trucks over 60,000 pounds: your reported Idaho mileage for the fee calculation
• Title or ownership documents and proof of insurance

Who to contact

ITD Commercial Vehicle Services: 208-872-3163, cvs@itd.idaho.gov, PO Box 7129, Boise — online through the Commercial Registration System. Trucks up to 60,000 pounds: any of the 44 county assessor motor vehicle offices. For Form 2290 itself, the IRS call site is 866-699-4096, Monday through Friday 8:00 a.m. to 6:00 p.m. Eastern.

Frequently asked questions

Is there an Idaho Form 2290?
No. Form 2290 is a federal IRS return — and since February 2024, Idaho no longer accepts it for forwarding. File with the IRS, then show Idaho the proof.

County office or ITD?
County assessor offices handle trucks through 60,000 pounds; ITD Commercial Vehicle Services handles heavier trucks, farm units over 60,000 pounds, and all IRP fleets.

Which year’s Schedule 1 do I need?
July 1 through September 30, the current or prior year’s proof is accepted; from October 1 on, only the current year’s. Idaho publishes a filing-period tool for edge cases.

My truck is suspended — can I use the bill of sale instead?
No. For suspended-category vehicles, only the Schedule 1 itself is accepted as proof of filing.

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Related: All states · Using Schedule 1 at the DMV · How to e-file

Nearby states: Washington · Oregon · Montana · Wyoming · Utah · Nevada

General information, not tax or legal advice — we may make errors. The IRS is the ultimate authority on federal requirements; the Idaho Transportation Department and your county assessor are authoritative on Idaho registration. Idaho details drawn from ITD’s Commercial Vehicle Services guidance and its IRS Form 2290 filing-change bulletin; federal details from the Instructions for Form 2290 (Rev. July 2026). Confirm current requirements with the office before you go. See our disclaimer.