Illinois VSD 314 Form: Homemade Trailer Affirmation Guide – Building your own trailer in Illinois is a practical and cost-effective option for many residents, whether for farm use, hauling equipment, or recreational purposes. However, before a homemade trailer can be legally titled and registered for use on public roads, the Illinois Secretary of State requires specific documentation and inspections. One of the key forms in this process is Form VSD 314 — Affirmation for Homemade Trailer.
This official form confirms that the trailer was built by the owner (or owners), has never carried a manufacturer’s or state-issued identification number, and meets the state’s definition of a homemade trailer. Submitting an accurate and complete VSD 314 is essential for obtaining a Certificate of Title and registration plates.
This guide explains what Form VSD 314 is, who needs it, the required supporting documents, the inspection process, fees, and step-by-step instructions for U.S. residents (particularly those in Illinois) seeking to title a homemade trailer.
What Is Illinois Form VSD 314?
Form VSD 314 is the official “Affirmation for Homemade Trailer” issued by the Illinois Secretary of State Vehicle Services Department. On this form, the owner affirms under penalty of law that:
- The trailer was built by the owner(s).
- It does not bear, and has never displayed, a manufacturer’s or state-issued identification number.
- The information provided is true and correct.
The form also collects basic information about the owner and the trailer, including name, address, telephone number, body style, gross weight category (5,000 pounds or less, or 5,001 pounds or more), and number of axles.
The current version of the form (VSD 314.11, April 2026) is available as a fillable PDF from the official Illinois Secretary of State website.
Download Form VSD 314 here: Illinois Secretary of State Form VSD 314 (PDF)
Who Needs Form VSD 314?
You must complete and submit Form VSD 314 if you are applying for a Certificate of Title and registration for a homemade trailer in Illinois. According to Illinois Administrative Code Title 92, Section 1010.200, a “homemade trailer” is defined as a trailer that:
- Was built from various parts and not manufactured by an established company.
- Has never been issued a manufacturer’s ownership document.
- Has no prior registration information.
This form is required for all new homemade trailers, regardless of weight. Trailers weighing 5,001 pounds or more have additional inspection requirements through the Illinois Department of Transportation (IDOT).
Required Documents to Submit with Form VSD 314
Form VSD 314 cannot be submitted alone. The Illinois Secretary of State requires a complete package that typically includes:
- Application for Vehicle Transaction(s) (Form VSD 190) — the primary title and registration application.
- Homemade Trailer Statement of Construction (Form VSD 797) — a detailed description of materials used and sources of essential components (body, frame, axles, etc.).
- Color photographs of the trailer showing the side, front, and rear views. Photos must clearly show the tongue, safety chains, license plate bracket, and taillights (or tailgate area).
- Applicable title and registration fees payable to the Secretary of State.
- IDOT inspection certificate if the trailer weighs 5,001 pounds or more.
Supporting receipts for major components (axles, wheels, frame materials) are strongly recommended, as the inspection checks for stolen parts.
You can find related forms on the official Illinois Secretary of State Title and Registration Publications and Forms page.
How to Complete Form VSD 314?
Filling out Form VSD 314 is straightforward. Follow these steps:
- Enter the full legal name(s) of the owner(s).
- Provide the complete street address, city, state, and ZIP code.
- Include a required telephone number.
- Describe the body style of the trailer.
- Check the appropriate gross weight box (5,000 pounds or less, or 5,001 pounds or more).
- State the number of axles.
- Read the affirmation statement carefully. By signing, you confirm the trailer is homemade and has never had a manufacturer’s or state VIN.
- Sign and date the form. If there is a co-owner, both parties must sign and date.
Print the form clearly or complete the fillable PDF fields. Keep a copy for your records.
Inspection Requirements for Homemade Trailers
All new homemade trailers in Illinois must be inspected by the Secretary of State Department of Police before a title and registration can be issued. The inspection verifies that the trailer is safe for highway use, that all required safety equipment is installed and operational, and that no stolen parts are present.
During a successful inspection, the Secretary of State Police will stamp or rivet a unique vehicle identification number (VIN) to the frame of the trailer. This state-assigned VIN becomes part of the official record.
Important notes from the form and regulations:
- You may only operate the trailer to and from the inspection site until the VIN is applied.
- A 7-Day Permit for transportation purposes can be obtained at a Secretary of State facility.
- Trailers weighing 5,001 pounds or more also require an IDOT inspection. Call 217-785-1181 for the nearest authorized IDOT inspection station.
Contact the Homemade Trailers unit for inspection scheduling information:
Secretary of State
Vehicle Services Department
Homemade Trailers
501 S. Second St.
Springfield, IL 62756
Phone: 217-558-4762
Website: ilsos.gov
Fees for Titling and Registering a Homemade Trailer
Fees are paid to the Illinois Secretary of State and are subject to change. As of current information:
- Original Certificate of Title fee: $165.
- Registration fees vary by weight class and registration period (prorated quarterly in many cases). For many lighter trailers (often under 3,000–8,000 pounds), annual registration can range from approximately $18–$50 or higher depending on exact weight and plate type (e.g., TA plates).
Always confirm current fees with the Secretary of State or when submitting your application, as amounts can be updated. Make checks or money orders payable to the Secretary of State. Separate tax payments (if applicable) go to the Illinois Department of Revenue.
For general title and registration guidance, visit the official Apply for Registration and Title page.
Step-by-Step Process to Title a Homemade Trailer in Illinois
- Build the trailer according to safety standards (lighting, reflectors, brakes if required by weight, safety chains, etc.).
- Complete Form VSD 314 (Affirmation for Homemade Trailer).
- Complete Form VSD 797 (Statement of Construction) with detailed component information.
- Take clear color photographs of the required views.
- Complete Form VSD 190 (Application for Vehicle Transaction(s)).
- Gather fees and any additional documentation (receipts recommended).
- If the trailer weighs 5,001 pounds or more, obtain the IDOT inspection.
- Schedule and complete the Secretary of State Police inspection. A VIN will be applied upon approval.
- Submit the complete package (forms, photos, fees, inspection results) by mail or in person to the Vehicle Services Department in Springfield or at an appropriate facility.
- Once approved, you will receive the Certificate of Title and registration plates/stickers.
Processing times vary. Incomplete applications are typically returned, causing delays.
Important Legal and Safety Notes
Under Illinois law (625 ILCS 5 and related administrative rules), operating an untitled or unregistered homemade trailer on public roads is prohibited except for limited movement to an inspection site with proper authorization. The affirmation on Form VSD 314 is a legal statement; providing false information can result in penalties.
Safety equipment requirements increase with weight. Trailers over certain thresholds need brakes on multiple wheels and, for heavier units, breakaway braking systems. All trailers need proper lighting and reflectors.
For the most current rules, refer to:
- Illinois Administrative Code Title 92, Section 1010.200
- Official Illinois Secretary of State publications and forms pages
Frequently Asked Questions
Is Form VSD 314 the only form I need?
No. You must also submit VSD 190, VSD 797, photographs, fees, and any required inspections.
Do I need a notary for VSD 314?
The current official form does not specifically require notarization, but always follow the instructions printed on the form and any guidance from the Secretary of State.
Can I register a homemade trailer without an inspection?
No. All new homemade trailers require inspection by the Secretary of State Department of Police prior to issuance of a title and registration.
Where do I mail the documents?
Typically to: Secretary of State, Vehicle Services Department, Homemade Trailers, 501 S. Second St., Springfield, IL 62756. Confirm the exact address and any room numbers when preparing your packet.
What if my trailer is already partially assembled or I bought used components?
As long as it meets the definition of a homemade trailer (no prior manufacturer title or registration) and you can document the construction, the process still applies. Keep receipts for major parts.
Conclusion
Form VSD 314 — Affirmation for Homemade Trailer is a critical document for anyone in Illinois who has built their own trailer and wants to title and register it legally. Combined with the Statement of Construction (VSD 797), Application for Vehicle Transaction(s) (VSD 190), photographs, fees, and required inspections, it allows the Secretary of State to issue a unique VIN and Certificate of Title.
Always download the latest version of the form directly from the official Illinois Secretary of State website and verify current requirements, fees, and contact information before submitting. Following the process carefully helps ensure your homemade trailer is road-legal and safe for use across the United States, starting with compliance in Illinois.
Official download link for Form VSD 314: https://www.ilsos.gov/content/dam/publications/pdf_publications/vsd314.pdf
For additional assistance, contact the Illinois Secretary of State Vehicle Services Department Homemade Trailers unit at 217-558-4762 or visit ilsos.gov.