Where to Send California Tax Return by Mail or From Outside the U.S.

Filing taxes can be a daunting task, especially when it comes to knowing the correct mailing address for submitting your California tax return. With specific guidelines based on whether you’re including payment or filing from outside the U.S., it’s important to understand where to send your documents to ensure timely processing and avoid penalties.

This article clarifies the mailing options for California taxpayers, focusing on scenarios with and without payments, as well as international submissions.

Paper Returns Without Payment

For tax returns without payment, send your documents to:
Franchise Tax Board, PO Box 942840, Sacramento, CA 94240-0001.

This address is designated for returns without payment, ensuring they are processed separately from those with payments. The Franchise Tax Board (FTB) separates these submissions to streamline operations, improving efficiency and reducing errors, especially during peak tax season. Taxpayers should use the correct address to avoid delays.

Paper Returns With Payment

If your paper return includes a payment, mail it to:
Franchise Tax Board, PO Box 942867, Sacramento, CA 94267-0001.

Returns with payments require different handling to ensure funds are properly credited to your account. The FTB processes these submissions by verifying payment amounts and updating records. Sending documents to the appropriate address ensures smooth processing and avoids potential penalties or interest from processing errors.

Mailing From Outside the U.S.

For California residents filing from abroad, use this address:
Franchise Tax Board, PO Box 942840, Sacramento, CA 94240-0001, USA.

This unit manages international submissions, considering potential delays from customs or varying postal efficiencies. Many filers use courier services with tracking to ensure secure and timely delivery. If filing electronically, confirm digital submissions meet FTB requirements, including compliance with tax treaties and foreign income reporting.

Using Certified Mail

Certified mail, offered by the United States Postal Service (USPS), provides added security and accountability. It includes a receipt and tracking number, allowing taxpayers to monitor delivery. This can be critical in disputes over filing deadlines.

Certified mail also requires a signature upon receipt, ensuring documents reach the intended recipient. This verifiable chain of custody can be essential in legal or administrative situations. While it adds cost, many find the added security and peace of mind worth the expense.