What Form 3539 (2019) Is For
Form 3539 (2019) is a payment voucher used by corporations and exempt organizations to submit tax payments when taking advantage of California’s automatic extension to file a business income tax return. While the extension gives extra time to file, it does not delay the tax payment deadline. The Franchise Tax Board requires that any tax owed be paid by the original due date, and Form 3539 serves as proof of timely payment for filers using Form 100, Form 100W, Form 100S, or Form 109.
When You’d Use Form 3539 (2019)
Form 3539 (2019) is used when you need more time to file, but still have unpaid tax due for the 2019 tax year. Common situations include:
Original 2019 filing deadlines
You used Form 3539 if your C corporation, S corporation, or exempt organization could not file by the original due date and had a balance owing.
Minimum franchise tax
Form 3539 was required if your business owed the minimum franchise tax of $800, even with no taxable income, unless it was in its first year.
Electronic payment thresholds
If your estimated or extension payment exceeded $20,000 or your total tax liability surpassed $80,000, you were required to pay electronically.
Reasonable standing requirement
The corporation or entity must have been in good standing with the California Secretary of State to be eligible for the automatic extension.
Late filing in 2025
While Form 3539 is no longer valid for late 2019 filings, understanding its use helps explain how late payment penalties are calculated under California law.
Key Rules or Details for 2019
Several California-specific rules applied to the 2019 version of Form 3539:
Seven-month extension for C corporations
Beginning in 2019, C corporations were granted a seven-month automatic extension, with a new deadline of November 16, 2020.
Six-month extension for S corporations and exempt organizations
S corporations and most exempt organizations retained a six-month extension, with due dates in September or November, depending on the entity type.
No extension on tax payment
The automatic extension only applied to filing; tax still had to be paid by the original due date to avoid penalties and interest.
Tentative tax calculation
Corporations calculated tentative tax by subtracting estimated payments and prior year credits from the total tax liability.
Electronic filing penalty
If your business met California’s electronic payment thresholds and failed to use an approved method, a 10% non-compliance penalty applied under the California Revenue and Taxation Code.
Step-by-Step (High Level)
To use Form 3539 (2019) correctly, follow these general steps to ensure accurate payment and compliance:
Step 1 – Calculate tentative tax
Determine your total 2019 tentative tax, including any alternative minimum tax, and ensure the amount is at least $800 if your corporation is subject to franchise tax.
Step 2 – Subtract prior payments
Subtract estimated tax payments made during 2019 and any overpayment from the previous year that was applied as a credit.
Step 3 – Fill out Form 3539
Enter all required details, including your California corporation number, federal employer identification number (FEIN), California Secretary of State file number (if applicable), business name, and address, and indicate which return form you will be filing.
Step 4 – Select payment method
If electronic payment is not required, prepare a check or money order payable to the Franchise Tax Board; otherwise, pay through Web Pay, Electronic Funds Withdrawal, Electronic Funds Transfer, or credit card.
Step 5 – Mail or submit electronically
If mailing, send Form 3539 and payment (unattached) to the Franchise Tax Board at PO Box 942857, Sacramento, CA 94257-0531 by the original deadline.
Step 6 – File return by extended deadline
After making your payment, complete and file your 2019 return using Form 100, Form 100W, Form 100S, Form 199, or Form 109 by the appropriate extended due date.
Common Mistakes and How to Avoid Them
Taxpayers frequently make avoidable errors when submitting Form 3539; each mistake can lead to penalties or processing issues:
Filing when no tax is owed
Do not file Form 3539 if you do not owe tax; California automatically grants the extension when there is no balance due, and no voucher is required.
Ignoring the $800 minimum tax
C and S corporations, except those in their first year, must pay at least the $800 minimum regardless of calculated liability to avoid penalties.
Confusing extension with payment deferral
The extension only delays filing; any tax due must be paid by the original deadline to prevent penalties and interest.
Underpaying below 90%
If your payment was less than 90% of the total tax due, you may be subject to late payment penalties even if you filed by the extended deadline.
Missing electronic filing rule
Businesses that meet California’s electronic payment thresholds must not send checks; doing so triggers a 10% non-compliance penalty.
Using outdated deadlines
Do not assume all corporations receive a six-month extension; for 2019, C corporations received a seven-month extension, which differs from prior years.
What Happens After You File
Once you submit Form 3539 and make your payment, the Franchise Tax Board applies the amount toward your 2019 tax liability. If you overpaid, you may receive a refund after your full return is processed. If you underpaid, you will receive a notice for the remaining balance, plus interest. Filing the return by the extended deadline is still required to avoid late filing penalties. Proper payment and timely filing also help preserve your corporation’s good standing and prevent suspension or forfeiture.
FAQs
Do I need Form 3539 if I don’t owe any tax?
No, if your corporation or exempt organization has no tax liability for 2019, the automatic extension applies, and you are not required to submit Form 3539 (2019).
Can I use Form 3539 for an amended return?
Amended returns must be filed using the original return form—such as Form 100, Form 109, or Form 199—with “Amended” clearly marked.
What if my business is a limited partnership?
Limited partnerships generally file using Form 565 and are not required to use Form 3539 unless they elect to be treated as a corporation for tax purposes under California law.
Does Form 3539 apply if I have unrelated business income?
Yes, if your exempt organization has unrelated business taxable income, you may need to use Form 3539 to remit payment with your California Exempt Organization Business Income Tax Return.
Where can I get help if I’m filing late and need support?
California taxpayers can refer to validation tools, the California Relay Service, or community forums for general help, or consult with the California Department of Tax and Fee Administration for guidance on filing and payment obligations.
