California Sales Tax Relief Available for those who Received the CDTFA Letter
California sales tax owed represents the largest liability for Amazon FBA sellers who had stock in California before October 1st, 2019, and are not registered.
[Updated October 2019] After speaking with California, don’t expect any past liability to go away anytime soon. You missed the September 25th deadline, but you may still have options to reduce some interest or penalties if you come forward for compliance.
[Update August 30, 2019 ]: The deadline is September 25th, 2019, to get registered in California, file your past sales tax returns from April 2016 to March 2018, pay the past sales tax, plus a penalty. There is an option to enter into a payment program by that date, but the payment plan must be completed by December 2021.
Amazon FBA sellers are liable when they first had nexus (FBA stock in California) and sales after that time period (typically the same month).
As of October 1st, 2019, as a marketplace facilitator, Amazon will be collecting and remitting sales tax on behalf of all third-party sellers.
If you were not in compliance with California sales tax, you might have recently received an email from California with this subject:
From: “CA Department of Tax and Fee Administration” <NoReplyNewsletters@cdtfa.ca.gov> Subject: Relief May Be Available to Marketplace Sellers Using Fulfillment Centers in California
If you received this email, it means two things: California has your email, most likely from Amazon, and it is recommended you take action on this notification.
If you have not yet registered in California, you may have received a recent notice from the CDTFA about an opportunity to seek relief for sales between April 1, 2016, to March 31st, 2019.
In addition to registration within 90 days, you must also meet these requirements:
- A seller can not have registered before 12-1-18;
- Sales and use tax returns can not have been filed before receiving a letter from the CDTFA;
- The seller only had nexus due to inventory in an Amazon warehouse.
Key Point: Even if you received a past notice from California last December or after, you still may qualify for this “last opportunity” for compliance with California.

Your next step is to complete CDTFA‑38‑A (via a paper form) after registering for a sales tax permit. Sales Tax System can help you with this step.
Once the state has approved your application for CDTFA‑38‑A (Relief for Marketplace Sellers), you will file annual returns for the years 2016-2018. It will also relieve the past penalties; however, you would still have to pay the taxes and interest for the years 2016-2018.

CDTFA-38 for out of state voluntary disclosure
A “qualifying retailer” will not be assessed tax by the CDTFA concerning sales made before April 1, 2016, and will be relieved of penalties concerning sales made for the period April 1, 2016, to March 31, 2019.
How do I register to pay past California sales tax?
To register, go to www.cdtfa.ca.gov, select Register, then select Register a New Business Activity or Location. The start date on your account should reflect the date you began engaging in business in California.
Tips on Processing Time
If you meet all of the conditions as a qualifying retailer, first, you need to register for sales tax. Then you can register for CDTFA-38-A (Relief for Marketplace Sellers) immediately after since it will ask for your account number. No supporting documents are needed. Just fill out the form. Once CDTFA receives the application, it will take 2-4 weeks for processing. They will also send a notification if it has been approved (via mail and email). On a final point, your application must be mailed within thirty (30) days of registration to the California Department of Tax and Fee Administration.
How do I notify the CDTFA that I am a qualifying retailer?
If you are a “qualifying retailer,” please complete CDTFA‑38‑A, Relief for Marketplace Sellers per section 6487.07, available at www.cdtfa.ca.gov, and mail the form to:
California Department of Tax and Fee Administration
Out‑of‑State Office
3321 Power Inn Road, Suite 130
Sacramento, CA 95826‑3893
For more information about California Sales Tax
For more information about registering, filing returns, paying taxes, or entering into a qualifying installment payment agreement, and relief of penalties, please contact their Out‑of‑State Office at 1‑916‑227‑6600 or via email at OSReg@CDTFA.ca.govI.
Questions? Please email support@www.salestaxsystem.com.