Interest on Claims for Refund – Filing Claims for Refund

We will pay you interest on any refund of tax at the modified adjusted rate per month, as identified on the interest rate table, with the following exceptions:

1. No interest is allowed on credits taken on tax returns.
2. Interest will not be allowed if we find that an overpayment was made intentionally or carelessly.
3. No interest is due if we pay a claim for refund filed by you for exports, exempt uses, or exempt sales of tax–paid diesel fuel within 20 days of our receipt of a properly completed claim form. See section 60511 of the Diesel Fuel Tax Law. In general, these are claims you file on the following forms:
   1. CDTFA-770-DU, Diesel Fuel Claim for Refund on Nontaxable Uses.
   2. CDTFA-770-DV, Diesel Fuel Ultimate Vendor Report/Claim for Refund.
   3. CDTFA-770-DVW, Diesel Fuel Tax Claim for Refund-Sales to Ultimate Purchasers.
   4. CDTFA-770-DZ, Claim for Refund on Nontaxable Sales and Exports of Diesel Fuel.

   For more information about when interest applies, see Publication 75, Interest and Penalties, or contact us.

   Leadership

   Quick Links

   • About CDTFA
   • External Tax Resources
   • Job Opportunities
   • Tax Guide for Local Jurisdictions and Districts

   Social Media

   State Campaigns

   • COVID-19 Updates
   • Flex Alert
   • Register to Vote
   • Save Our Water

   Contact Us

   • 1-800-400-7115
   • California Connect (TTY): 711
   • Email CDTFA
   • Office Locations
   • CDTFA Directory
   Conditions of Use Privacy Policy Accessibility Accessibility Certificate Languages Copyright © California Department of Tax and Fee Administration

   Website Accessibility Certification

   We strive to provide a website that is easy to use and understand. Our goal is to provide a good web experience for all visitors.

   Agency

   California Department of Tax and Fee Administration

   Certification date

   The undersigned certify that, as of June 13, 2023, the internet website of the California Department of Tax and Fee Administration is designed, developed, and maintained to be in compliance with California Government Code Sections 7405, 11135, and 11546.7 and the Web Content Accessibility Guidelines 2.1, Level AA success criteria, published by the Web Accessibility Initiative of the World Wide Web Consortium.

   

   
   June 14, 2023
   Nicolas Maduros
   Director

   Scott Capulong Signature" />

   
   June 13, 2023
   Scott Capulong
   Chief Information Officer