Until January 1, 2024, South Carolina would take your completed Form 2290 and payment at the counter and mail it to the IRS for you. That service is gone — today the SCDMV wants a receipted Schedule 1, tracks a “2290 compliance year” flag in its system, and collects its own Road Use Fee at the same registration visit.
Quick answer: All registration runs through the SCDMV — no county offices. Apportioned (IRP) registration cannot be done at any branch; it runs online through the SCDMV Trucking Portal, with Motor Carrier Services headquartered in Blythewood. Both IRP registrants and intrastate carriers at 55,000 pounds GVW or more must show a Schedule 1 validated by the IRS for the current tax year, or a copy plus the cancelled check, front and back.
Where do I register a heavy truck in South Carolina?
Intrastate trucks register with the SCDMV; carriers over 26,000 pounds who opt into quarterly payments are folded into Motor Carrier Services with a CM plate, and eight SCDMV branches statewide handle in-person motor-carrier transactions.
Apportioned registration is online-or-mail only: new IRP accounts open through the Trucking Portal (“Open A New IRP/IFTA Account”), and since May 2026, IRP renewals and IFTA returns must be submitted online or mailed to Motor Carrier Services headquarters — branches no longer process them. Two document rules to know: for a new account, you must upload the HVUT 2290 before credentials are issued; for an online renewal, the 2290 is emailed to MCS after completing the portal transaction.
What proof of HVUT payment does South Carolina accept?
- A Schedule 1 (Form 2290) validated by the IRS for the current tax year — the stamped or e-file watermarked copy; or
- A copy of the current year’s completed Form 2290 with Schedule 1, accompanied by a photocopy of the cancelled check, front and back, used to pay the tax.
The SCDMV’s own wording applies this to both IRP registrants and intrastate carriers at 55,000 pounds or more. And the check doesn’t only happen at renewal: SCDMV’s system tracks a “2290 compliance year” per vehicle, and even a plate-replacement transaction throws a warning when the compliance year is missing or expired — you upload the filed 2290 to continue.
The forwarding service that ended — January 1, 2024
South Carolina was one of very few states that would voluntarily accept your completed Form 2290, Schedule 1, and IRS payment and forward the return to the IRS so you could register without waiting. The SCDMV ended that on January 1, 2024, noting it was never required by law to offer it. If you registered that way in the past, the process has changed: bring the IRS-receipted Schedule 1 (e-filing gets you the watermarked copy within minutes of acceptance — see how to e-file).
The Road Use Fee rides along
Since 2019, commercial vehicles over 26,000 pounds pay South Carolina’s Road Use Fee with registration at the SCDMV — it replaced the old motor carrier property tax that used to be filed with the Department of Revenue. Every 55,000-pound truck is in that bucket, so a registration visit bundles the base fee, the Road Use Fee (quarterly installments available), and the 2290 check. Don’t confuse the two: the Road Use Fee is South Carolina’s tax; the HVUT is federal, paid to the IRS, and only verified by the SCDMV.
The 60-day rule — and South Carolina’s own exemption form
SCDMV’s manual states it simply: a Form 2290 is not needed if the vehicle is registered within 60 days from the date of purchase. Since South Carolina separately requires newly purchased vehicles to be registered within 45 days, an on-time registration always lands inside the window. One caution on the manual’s side note that tax must be “paid within 30 days of purchase” — the actual federal deadline is the last day of the month following the month of first use; file by the real IRS date. See buying a used truck and due dates.
South Carolina also has something few states do: its own exemption form, MC-2290, where an owner self-certifies per tax year that listed vehicles aren’t highway motor vehicles at all — mobile machinery, off-highway equipment, non-transportation trailers. That’s for vehicles outside the federal tax’s scope, not low-mileage suspended trucks, which still file with the IRS. See which vehicles are exempt.
What’s federal and doesn’t change in South Carolina
- Threshold of 55,000 pounds taxable gross weight
- Tax period July 1 through June 30, due August 31 for vehicles in service in July — SCDMV’s own guidance repeats the July 1–August 31 filing window
- 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 — also restated by SCDMV
- Suspension at 5,000 miles or less, 7,500 for agricultural vehicles
See what Form 2290 is and tax rates.
What to bring (or upload)
- IRS-validated Schedule 1 for the current tax year — uploaded for new IRP accounts, emailed after online renewals, shown at the branch for intrastate trucks
- Or the current-year 2290/Schedule 1 copy plus the cancelled check, front and back
- Bill of sale, if registering within 60 days of purchase
- Road Use Fee payment (or quarterly election), title documents, and proof of insurance
Who to contact
SCDMV Motor Carrier Services: 803-896-3870, MCSHQ@dmv.sc.gov, 10311 Wilson Boulevard, Building C, Blythewood (mail: PO Box 1498, Blythewood, SC 29016-0027) — IRP transactions through the Trucking Portal. 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 a South Carolina Form 2290?
No — the 2290 is federal. South Carolina’s MC-2290 is a different thing entirely: a state self-certification that a vehicle isn’t a highway motor vehicle subject to the tax.
Can the SCDMV still send my 2290 to the IRS?
No. That voluntary forwarding service ended January 1, 2024. Bring a receipted Schedule 1 — or e-file and have the watermarked copy in minutes.
Can I handle IRP at a branch?
No — IRP registrations can’t be processed at any SCDMV branch. New accounts and renewals go through the Trucking Portal or by mail to Motor Carrier Services.
Why did a plate replacement ask for my 2290?
SCDMV tracks a per-vehicle 2290 compliance year; transactions on vehicles with a missing or expired compliance year prompt for the filed 2290, which you can upload and continue.
Related: All states · Using Schedule 1 at the DMV · How to e-file
General information, not tax or legal advice — we may make errors. The IRS is the ultimate authority on federal requirements; the SCDMV is authoritative on South Carolina registration. South Carolina details drawn from the SCDMV’s commercial vehicles guidance, its Motor Carrier Services Manual, and its Trucking Portal guidance; federal details from the Instructions for Form 2290 (Rev. July 2026). Confirm current requirements with the office before you go. See our disclaimer.