If you are stationed at Fort Campbell on active-duty orders, you can buy a vehicle without paying Kentucky’s 6% motor vehicle usage tax, provided you buy from a Kentucky-licensed dealer and file the right paperwork at the sale. Because the post straddles the state line, a parallel Tennessee exemption from the 7% sales tax applies when the purchase happens on the Tennessee side. The Fort Campbell vehicle tax exemption is a point-of-sale benefit, not something you claim later, so the forms and documents have to be in the dealer’s hands before you sign.
Who Qualifies
Kentucky’s exemption covers “members of the Armed Forces on duty in this Commonwealth under orders from the United States government.”1Justia. Kentucky Revised Statutes 138.470 – Exemptions From Tax All branches are included. You need to be on active duty, stationed in Kentucky under orders, and buying from a Kentucky-licensed dealer.
Three limits catch people off guard. First, the exemption does not apply to a vehicle titled to a spouse or other family member, even if the service member pays for it. Second, it does not apply to leases. Third, it does not apply to private-party sales. KRS 138.470(4) requires the vehicle to be “sold by or transferred from dealers registered and licensed” in Kentucky,1Justia. Kentucky Revised Statutes 138.470 – Exemptions From Tax so a car bought from another soldier will be taxed by the county clerk when you register it.2U.S. Army Fort Knox. Motor Vehicle Registration and Kentucky Sales, Use, and Personal Property Tax Regarding Automobiles A vehicle bought in another state and brought to Kentucky also does not qualify.
Use Form 71A101, Not 51A127
The correct Kentucky form is the Motor Vehicle Usage Tax Multi-Purpose Form, designated 71A101. It contains a dedicated section for military personnel claiming the usage tax exemption.3Kentucky Department of Revenue. Motor Vehicle Usage Tax A persistent piece of misinformation points people toward Form 51A127, which is actually the Out-of-State Purchase Exemption Certificate for out-of-state agencies and institutions. It has nothing to do with individual military vehicle purchases.4Kentucky Department of Revenue. Out-of-State Purchase Exemption Certificate
On the 71A101, Kentucky-resident service members supply documentation showing active duty in the Commonwealth under U.S. government orders. Non-resident service members must attach a current Leave and Earnings Statement dated within 120 days. The form warns that the Department of Revenue may deny the exemption if the form is incomplete or the required documentation is missing, which leaves the buyer liable for the tax plus penalties and interest.3Kentucky Department of Revenue. Motor Vehicle Usage Tax
You can download the 71A101 from the Kentucky Department of Revenue website or pick one up at the county clerk’s office. Dealerships near Fort Campbell generally keep copies and know the military section, but confirm you are being handed the 71A101 rather than a 51A127.
How the Kentucky Purchase Works
Bring the completed 71A101, your PCS orders, and a current LES to the dealership before you sign the final sales contract. With those documents in hand, the dealer excludes the 6% usage tax from the transaction. If you forget the paperwork, the dealer collects the tax and you have to pursue a refund through the Department of Revenue, which is slower and less certain than claiming the exemption at the sale.
The dealer processes the title transfer through the county clerk, who verifies your orders and identification. Both you and the dealer are responsible for the accuracy of the information on the form, and the dealer must retain a copy of the exemption documentation for audit purposes. Every detail on the form must match the vehicle exactly: VIN, make, model, and year must line up with the title and the purchase agreement. A single transposed digit in the VIN can delay processing or get the exemption denied until it is corrected.
If You Buy on the Tennessee Side of Post
Fort Campbell sits partly in Tennessee, and Tennessee has its own exemption under Tenn. Code Ann. § 67-6-303(a)(2). State sales tax on vehicles in Tennessee is 7%, slightly higher than Kentucky’s rate.5Tennessee Department of Revenue. Military and Veterans Tax Guide
The exemption covers active-duty members of a uniformed service stationed in Tennessee or on a military reservation partially within the state under orders. It also covers Tennessee National Guard and reserve members in the Active Guard and Reserve program stationed in Tennessee under orders. It applies to motor vehicles and camper trailers. It does not apply to boats or non-motor-vehicle trailers.5Tennessee Department of Revenue. Military and Veterans Tax Guide
The vehicle must be registered in Tennessee. To claim the exemption, present a copy of your PCS orders to the county clerk, and to the seller if you are buying from a Tennessee dealer. If your PCS orders do not show an expiration or commitment date confirming you are still at Fort Campbell, the clerk may ask for an LES or Enlisted Record Brief as supporting documentation. Those documents supplement orders; they do not replace them.5Tennessee Department of Revenue. Military and Veterans Tax Guide
When the SCRA Fills the Gap
The Servicemembers Civil Relief Act adds a federal layer of protection. Under 50 U.S.C. § 4001, a service member’s personal property, which the statute explicitly includes motor vehicles within, is not deemed to have a tax situs in the jurisdiction where the service member is serving under orders, other than the service member’s own domicile or residence. The same protection extends to a service member’s spouse and the spouse’s personal property, provided the duty-station state is not the spouse’s own domicile.6Office of the Law Revision Counsel. United States Code Title 50 Section 4001
This matters at Fort Campbell because the Kentucky dealer-level exemption does not cover vehicles titled to a spouse. A spouse buying separately may have to rely on the SCRA, which often means paying tax at the point of sale and filing for a refund rather than avoiding the tax upfront.
Your Home State Can Still Tax the Vehicle
The Fort Campbell exemption keeps Kentucky or Tennessee from taxing the sale. It does not stop your home state of record from taxing the vehicle when you register it there. Some states give a credit for sales tax paid in another state, but if you paid zero because of the military exemption, there is no credit to apply, and your home state can collect its full rate. Check with your home state’s motor vehicle division before counting the savings; depending on where your domicile is, the tax may shift rather than disappear.
What a Bad Claim Costs
The Department of Revenue treats fraudulent exemption claims as a 50% penalty on the tax that should have been paid. A negligent claim rather than an intentional one carries a 10% penalty. Interest runs at 9% for the 2026 calendar year, and a 25% cost-of-collection fee can be added if an unpaid balance remains outstanding 60 days after the original notice.7Kentucky Department of Revenue. Penalties, Interest and Fees
Not every bad claim is deliberate. A service member who has already separated but uses old orders to claim the exemption is committing fraud. A Kentucky resident in the National Guard who claims the active-duty dealer exemption without qualifying orders is a common audit flag. And honest paperwork errors on the 71A101, like a wrong VIN, a missing LES, or incomplete unit information, can get the exemption denied after the sale, with the tax and interest falling on the buyer.