Underground Storage Tank Maintenance Fee Return

Every owner of an underground storage tank shall file an underground storage tank maintenance fee return and schedule showing the total number of gallons of petroleum products (for example: gasoline, diesel fuels, and additives) placed into the owner's tanks during the period covered by the return. Do not report tank capacity. The return is due on or before the 25th day of the month following the end of the reporting period. A return must be filed even though you have no liability for the fee, for example, tanks that are empty or not in use.

If the ownership of the underground storage tank(s) has changed or the underground storage tank(s) has been removed, please contact our Customer Service Center at 1-800-400-7115 (CRS:711); from the main menu, select the option Special Taxes and Fees. Customer service representatives are available Monday through Friday from 7:30 a.m. to 5:00 p.m. (Pacific time), except state holidays.

Penalty and Interest

The penalty for filing a late return and/or late payment is ten percent of the amount due for the period. Interest also applies to late payments. The interest rate applies for each month or fraction of a month that the payment is late.

The Summary by Location schedule is used to report location level detail of events that support the return and is a reporting requirement of the fee program. Additionally, you must report each location even though you may not have placed any petroleum products into the underground storage tank(s) during the period for that location.

Report Tank Gallons by Location for Registered Sites

Specify the total gallons placed into the tank(s) for each registered site location during this filing period.

Tank Gallons by Location. Report the total number of gallons of petroleum products placed into the underground storage tank(s) for each registered location listed.

If you have additional locations (unregistered sites) with underground storage tank(s) that are not listed, then select Yes to the question: Do you have additional underground storage tanks not listed above?

If you do not have additional site locations, select No to the question: Do you have additional underground storage tanks not listed above?

Tank Gallons by Location. Click the Add a Record hyperlink to add a new underground storage tank site.

Input the following required information:

Street. Enter the street number and street name for the location being reported.

City. Enter the name of the city for the location being reported.

ZIP Code. Enter the five (5) digit ZIP code for the location being reported.

Click Here to Verify Address. Click the button to verify the inputted address. Once the address is verified, click the SAVE button.

Assessor's Parcel Number (APN). Enter the assessor’s parcel number (APN) for the location being reported.

Total Gallons Placed into Tanks. Enter the total number of gallons of petroleum products placed into the underground storage tank(s) for the location being reported.

If you have collected more fee than what is due (excess fee) for this reporting period, then select Yes to the question: Did you collect more fee than what is due? and enter the amount of the excess fee collected.

If you did not collect excess fees during this reporting period, select No to the question: Did you collect more fee than what is due?

• Underground Storage Tank Maintenance Fee Guide