Form IVT-1, officially titled the Fuel Inventory Report, is a mandatory tax document issued by the Indiana Department of Revenue. Its primary purpose is to report the total gallons of fuel—specifically gasoline and special fuel—that a business or individual holds in storage for sale on the effective date of a fuel tax rate increase. When the state legislature raises the tax rate on fuel, businesses with existing inventory must pay the difference on the fuel they have already purchased but not yet sold. This form ensures that all fuel sold after the rate hike is taxed at the new, higher rate, regardless of when it was originally bought. The form applies to anyone who holds title to gasoline or special fuel in storage for resale. It must be filed by a specific deadline (postmarked by July 31, 2025, for the current period) to avoid penalties. Filing can be done electronically via the INTIME portal or by mail.
How To File Form IVT-1
There are two primary ways to file this report and submit your payment. The preferred and most efficient method is electronic filing through INTIME, the Indiana Department of Revenue’s e-services portal (intime.dor.in.gov). This online system guides you through the process and allows for immediate payment. Alternatively, you can file by mail. If choosing this option, complete the physical form and mail it along with a check, money order, or cashier’s check made payable to the Indiana Department of Revenue. The mailing address is:
Indiana Department of Revenue
Special Tax Division
P.O. Box 510
Indianapolis, IN 46206-0510
Remember, the return must be postmarked on or before July 31, 2025. Late filings are subject to a penalty of $5 or 10% of the tax due, whichever is greater.
How To Complete Form IVT-1: Line-By-Line Instructions
Below are the specific instructions for every section of the form.
Section A – Taxpayer Information
Legal Business Name: Enter the full legal name of your business entity.
DBA Name: If you operate under a “Doing Business As” or trade name, enter it here.
Physical Street Address: Provide the actual physical location of the business (do not use a P.O. Box here).
City, State, and ZIP Code: Fill in the city, state, and ZIP code matching the physical address above.
Telephone Number: Enter the direct phone number for the contact person responsible for this tax return.
Federal Identification Number: Write your 9-digit Federal Employer Identification Number (FEIN).
Indiana Taxpayer Identification Number: Enter your 10-digit Indiana Taxpayer Identification Number (TID).
3-Digit Location Number: If you are filing for a single specific location, enter its 3-digit location code.
Consolidated Return: Check this box if you are filing one report for multiple business locations. You must attach a separate sheet listing each location and the corresponding gallons for each fuel type.
Email Address: Provide the email address of the person preparing the form. Leave blank if unavailable.
Reporting Zero Gallons
If you are reporting zero gallons on Line 1, you must indicate the reason by checking one of the provided boxes:
- No gasoline or diesel fuel is sold at this location.
- No longer in business.
- No gasoline or diesel fuel is stored in Indiana.
- All fuel is stored in an IRS terminal.
- All fuel is for own use (not for resale).
- Other (provide a brief explanation).
If you are not the party responsible for paying this inventory tax, you must write the name of the responsible party in the designated space.
Section B – Tax Computation
This section is divided into two columns: one for Gasoline Excise Tax and one for Special Fuel Excise Tax.
Line 1. Total Whole Gallons in Inventory: Enter the total number of gallons held in storage as of the close of business on June 30, 2025.
- Gasoline: Includes pure gasoline, E-10, and all ethanol blends up to E-85.
- Special Fuel: Includes diesel, compressed natural gas (CNG), liquid natural gas (LNG), and dimethyl ether (DME).
- Special Fuel Deduction: You may deduct “dead storage” (fuel that cannot be pumped out). Deduct 200 gallons for tanks under 10,000 gallons capacity, or 400 gallons for tanks over 10,000 gallons capacity. Note: This deduction does NOT apply to gasoline.
Line 2. Amount of Tax Rate Increase: This line is pre-filled with the rate increase amounts.
- Gasoline column: $0.01
- Special Fuel column: $0.02
Line 3. Inventory Tax Due: For each column, multiply the amount on Line 1 by the rate on Line 2. Enter the result in the respective column.
Line 4. Total Tax Due: Add the amounts from Line 3 in both columns (Gasoline + Special Fuel) and enter the total here.
Line 5. Penalty: If filing after the due date, calculate the penalty. Multiply Line 4 by 10% (0.10). Compare this result to $5.00. Enter the greater of the two amounts. If filing on time, enter 0.
Line 6. Interest: If paying after the due date, you must add interest. The interest rate is determined annually. You can find the current rate on the Indiana DOR website. Calculate interest based on the number of days late.
Line 7. Total Amount Due: Add Line 4 (Total Tax Due) + Line 5 (Penalty) + Line 6 (Interest). Enter the grand total here. This is the amount you must pay.
Certification
Signature and Date: The form must be signed by an authorized person declaring that the information is true and complete under penalty of perjury.
Printed Name: Clearly print the name of the signer.
Date: Enter the date the form was signed.