The California Franchise Tax Board (FTB) is the state agency that collects California’s personal income tax and the franchise and income taxes owed by corporations doing business in the state. It’s the state-level counterpart to the IRS, and it also collects certain non-tax debts for other California agencies, including delinquent court-ordered fines and overdue DMV registration fees.1California State Board of Equalization. History and Milestones of the State Board of Equalization2Franchise Tax Board. Non-Tax Debt Collections Its enforcement powers are broad: bank levies, wage garnishments, and property liens, all without needing a court order first.
What the FTB Collects
The FTB administers California’s personal income tax on residents, part-year residents, and nonresidents who earn income from California sources.3Franchise Tax Board. Do You Need to File? It also administers the corporate franchise and income tax, which requires every corporation incorporated, registered, or doing business in California to pay at least an $800 minimum franchise tax each year, regardless of whether it turned a profit.4Franchise Tax Board. Corporations The $800 minimum applies to C corporations, S corporations, and out-of-state corporations that have qualified with the Secretary of State or actually conduct business in California.
Separately, the FTB collects debts that aren’t taxes at all. Its Court-Ordered Debt program recovers delinquent fines, fees, and restitution for superior courts, probation departments, and state agencies. Its Vehicle Registration Collections program, permanent since 1993, collects overdue registration fees for the DMV.2Franchise Tax Board. Non-Tax Debt Collections For both programs, the FTB uses the same enforcement tools it applies to tax debts.
Who Has to File
California taxes residents on all income no matter where it was earned, and taxes nonresidents only on income from California sources. A “resident” means anyone in the state for other than a temporary or transitory purpose, or anyone domiciled in California who is temporarily outside the state.3Franchise Tax Board. Do You Need to File? Part-year residents owe tax on all income received during their resident period, plus any California-source income earned while they were a nonresident.
There’s a safe harbor for Californians who leave the state for work. If you’re out of California under an employment-related contract for at least 546 consecutive days, the FTB will generally treat you as a nonresident during that period. Return visits of 45 days or fewer per year won’t disqualify you. The safe harbor breaks if your intangible income (from stocks, bonds, and similar investments) exceeds $200,000 in any year the contract is in effect, or if the FTB determines the main reason you left was to avoid California income tax.5Franchise Tax Board. Guidelines for Determining Resident Status – Publication 1031
Filing Deadlines and Estimated Payments
California individual returns are due April 15. The state grants an automatic six-month extension to file, pushing the deadline to October 15, but this is only an extension of the paperwork. Any tax owed is still due April 15, and interest starts accruing on unpaid balances after that date.6Franchise Tax Board. Due Dates – Personal
If you expect to owe at year-end, you’ll likely need to make quarterly estimated tax payments. For 2026, those payments are due:
- 1st quarter: April 15, 2026
- 2nd quarter: June 15, 2026
- 3rd quarter: September 15, 2026
- 4th quarter: January 15, 2027
Missing an estimated payment triggers a separate penalty at 4% annually on the underpayment.7Franchise Tax Board. Interest and Estimate Penalty Rates
Penalties and Interest
Two main penalties hit filers who fall behind, and they can stack:
- Late filing: 5% of the unpaid tax for each month or partial month the return is late, up to 25% total. For individual returns with a balance of $540 or less, the penalty is the lesser of $135 or 100% of the amount due.
- Late payment: 5% of the unpaid tax, plus an additional 0.5% for each month the balance remains unpaid, up to 40 months.8Franchise Tax Board. Common Penalties and Fees
Interest accrues on top of the penalties. From July 2025 through June 2026, the rate is 7% annually on both personal income tax and corporate underpayments, compounded daily.7Franchise Tax Board. Interest and Estimate Penalty Rates A balance that sits for several years can grow substantially. The rate adjusts periodically, so check the FTB’s posted rates if you’re carrying one.
Audits, Protests, and Appeals
The FTB cross-references state returns against federal data and financial institution records to find discrepancies. If an audit turns up additional tax owed, the agency mails a Notice of Proposed Assessment (NPA). The NPA isn’t a bill yet. It becomes one only if you do nothing.9Franchise Tax Board. Notice of Proposed Assessment
The FTB generally has four years from the date you filed to issue an assessment. If you filed before the due date, the clock starts from the original due date instead. Two things extend this window indefinitely: never filing a return for that year, or failing to notify the FTB when the IRS adjusts your federal return. Report a federal change within six months and the FTB gets two years from your notification date to assess. Report after six months and they get four.10Franchise Tax Board. Your Tax Audit
You have 60 days from the date on the NPA to file a written protest with the FTB.9Franchise Tax Board. Notice of Proposed Assessment Miss that window and the proposed assessment becomes final; collection begins. If the FTB denies your protest, you can appeal to the Office of Tax Appeals, an independent body separate from the FTB, within 30 days of the denial. For refund claim denials, you get 90 days. If the FTB simply ignores a refund claim for more than six months, you can appeal to OTA at any time.11Cornell Law School. California Code of Regulations Title 18, 30203 – Time for Submitting an Appeal
How the FTB Collects Unpaid Debts
Once a debt becomes final, the FTB can act quickly, and unlike most creditors it doesn’t need a court order first.
Bank Levies
The FTB can issue orders to withhold that seize money directly from bank accounts and other financial assets held by third parties.12Franchise Tax Board. Other Levies For many taxpayers, this is the first concrete sign that ignoring a tax balance has real consequences.
Wage Garnishments
The FTB can order your employer to withhold part of your paycheck. For personal income tax debts, garnishments take up to 25% of pay per pay period. Non-tax debts like court-ordered debt or vehicle registration fees follow a different calculation, generally capped at 20% of disposable earnings.13Franchise Tax Board. Help With Withholding Orders – Section: How Much We Can Collect per Order If your pay after required deductions falls below certain thresholds, the garnishment is reduced or eliminated.14Franchise Tax Board. How Much to Garnish From an Employee’s Pay
State Tax Liens
The FTB can record a state tax lien in the county recorder’s office. Once recorded, the lien attaches to all real and personal property you own in California, including property you acquire later. It effectively blocks selling or refinancing real estate until resolved, because title companies won’t close with an outstanding lien on the property. The lien lasts 10 years from the date it’s recorded.15Justia. California Government Code – Article 2, State Tax Liens In some situations the FTB will subordinate a lien to allow a sale or refinance if enough equity remains to secure the debt.
The 20-Year Collection Window
The FTB has 20 years to collect on a tax liability, measured from the date the latest liability for that tax year became due and payable.16Franchise Tax Board. Statute of Limitations on Collection Actions That’s double the IRS’s 10-year federal window. Certain events reset the clock: adding a collection cost recovery fee, a lien fee, or an installment agreement fee creates a new “latest liability” and restarts the 20 years. The clock also pauses during bankruptcy, active payment plans, and other specific circumstances.
If You Can’t Pay
Installment Agreements
A payment plan is the usual first option. To qualify for a streamlined installment agreement, your balance must be $25,000 or less, and you have to pay it off within 60 months. The setup fee is $34, added to the balance.17Franchise Tax Board. Payment Plans Interest keeps accruing while you pay, so paying faster saves money. Balances above $25,000 may still qualify, but the FTB will want more financial documentation.
Offer in Compromise
In limited situations the FTB will accept less than the full amount owed. The bar is high. You must have filed all required returns, explored other payment options like installment agreements, and agreed that you owe the amount in question. Disputed liabilities don’t qualify. The FTB weighs your ability to pay, your assets, your current and future income and expenses, and whether circumstances could change. An accepted offer must be paid as a lump sum, and it can’t be for zero dollars.18Franchise Tax Board. Make an Offer on Your Tax Debt
Taxpayer Rights and Where to Get Help
California’s Taxpayers’ Bill of Rights protects your right to privacy of your tax information, professional and courteous treatment during audits, and the right to protest and appeal any FTB decision.19Franchise Tax Board. Your Taxpayer Rights
MyFTB, the agency’s online portal, lets you view your account, check return status, and respond to notices.20Franchise Tax Board. MyFTB Account The general customer service line is 800-852-5711, open weekdays 8 AM to 5 PM. If you’re dealing with a hardship or an error that regular channels haven’t fixed, the Taxpayers’ Advocate Office has a separate line at 800-883-5910.21Franchise Tax Board. Phone / Fax Field offices around the state handle in-person appointments for more complex issues like audit disputes and payment arrangements.