How to File Back Taxes in Los Angeles | The Reed Corporation
LOS ANGELES

How to File Back Taxes in Los Angeles

The California Franchise Tax Board is one of the most aggressive tax collection agencies in the country — more aggressive than the IRS in many cases. If you’re an LA resident with unfiled state returns, the FTB is already building a case against you using income data from W-2s, 1099s, and information-sharing agreements with the IRS. The good news: filing voluntarily before they come after you gives you more options and lower penalties than waiting for enforcement.

Why the California FTB Is Different From the IRS

Most people think of the IRS as the scary one. In California, the FTB is the agency that actually moves faster and hits harder on individual nonfilers. The FTB has tools the IRS doesn’t use as readily:

  • Bank levies without warning: The FTB can levy your bank account with minimal notice — sometimes as little as a demand letter followed by immediate action.
  • FTB offsets: California will intercept your state tax refunds, lottery winnings, and even certain state benefits to apply against unpaid tax debts. They also coordinate with other states through reciprocal collection agreements.
  • State tax liens: Filed with the county recorder, these attach to all real property in California and show up on your credit report.
  • Wage garnishment orders: Sent directly to your employer, up to 25% of disposable wages.

The IRS generally sends multiple notices over several months before levying. The FTB’s timeline is compressed. We’ve seen LA clients have their accounts frozen within weeks of a final demand notice.

Step 1: Pull Your Records From Both Agencies

Start by requesting your IRS account transcripts and wage/income transcripts for each unfiled year. These show what income the IRS has on file and whether they’ve already assessed you through a Substitute for Return.

For California, check your MyFTB account online. The FTB’s records show which years have estimated assessments filed against you, any collection actions in progress, and your current balance. If the FTB has already filed an assessment, it’s almost certainly higher than what you actually owe — they assume no deductions, no credits, and tax your gross income at the highest applicable rate.

Step 2: File Federal, Then State

Your California return (Form 540 for full-year residents) pulls data from your federal return. Federal AGI flows to the state return, and California starts its calculation from there with its own adjustments. File federal first so the state return has a foundation.

The IRS typically wants six years of returns to consider you compliant. California has no formal policy like this — the FTB can and does pursue all unfiled years, regardless of how far back they go. That said, filing the last six to eight years usually satisfies both agencies and stops active collection on older periods.

California’s Penalty Structure

California penalties mirror the federal structure but with its own twist:

  • Late-filing penalty: 5% of unpaid tax per month, up to 25%
  • Late-payment penalty: 0.5% per month, up to 25%
  • Demand-to-file penalty: 25% of the tax due, applied when the FTB issues a formal demand to file and you don’t respond within the stated period

That last one is the killer. The demand-to-file penalty is unique to California and stacks on top of the standard late-filing penalty. If the FTB sends you a demand letter and you ignore it, you can owe an additional 25% penalty that the IRS doesn’t charge. A $20,000 state tax balance can jump to $30,000 with the demand penalty alone — before interest.

Payment Options for Large Balances

If you owe the FTB and can’t pay in full, California offers installment agreements. For balances under $25,000, you can set up a monthly plan through MyFTB without talking to anyone. Larger balances require a financial statement (Form FTB 3567) showing your income, expenses, and assets.

California also has an Offer in Compromise program for taxpayers who genuinely cannot pay the full amount. The FTB reviews your ability to pay based on equity in assets, future income, and necessary living expenses. The acceptance rate is lower than the IRS program, and the FTB requires full compliance (all returns filed, current year estimated payments up to date) before they’ll even consider an offer.

One option specific to California: the Voluntary Disclosure Program. If you have unreported income from California sources and haven’t yet been contacted by the FTB, you can come forward voluntarily in exchange for reduced penalties. This is a narrow window — once the FTB contacts you, you no longer qualify.

What Happens if You Don’t File

The FTB will eventually file an assessment for you. They take your W-2 and 1099 income, apply zero deductions, calculate tax at the highest rate, add penalties, and send you a bill. For someone earning $120,000 with legitimate deductions that would bring their taxable income down to $80,000, the FTB’s estimated assessment might be $10,000 higher than what you’d actually owe.

Once that assessment becomes final (usually 30-60 days after notice), the FTB can start collection. They share data with the IRS, so a state delinquency can trigger federal scrutiny too. And California’s collection statute is longer than the IRS’s — the FTB has 20 years from the date of assessment to collect, compared to the IRS’s 10 years.

Frequently Asked Questions

How far back can the California FTB go for unfiled returns?
There is no statute of limitations on unfiled California returns. The FTB can assess and collect taxes for any year in which a return was required but not filed. This is different from the IRS, which typically focuses on the last six years for enforcement purposes.
Can the FTB take money from my bank account without warning?
The FTB issues demand notices before a bank levy, but the timeline between final demand and actual levy can be very short — sometimes just 30 days. Unlike the IRS, which has a formal collection due process hearing requirement, the FTB’s administrative procedures allow faster action on levies.
What is the California demand-to-file penalty?
If the FTB sends a formal demand to file and you don’t respond within the required period, California adds a 25% penalty on top of all other penalties. This penalty is unique to California and does not exist at the federal level. It applies to the total tax due for the unfiled year.
Should I file back taxes even if I can’t pay what I owe?
Yes. Filing stops the failure-to-file penalty (5% per month) and the California demand-to-file penalty (25%) from growing. You’ll still owe the failure-to-pay penalty (0.5% per month), but that’s much smaller. Filing also gives you access to installment agreements and other payment options.
Can I get penalty abatement from the California FTB?
California offers a one-time penalty abatement for taxpayers who have filed and paid on time for the prior three years. If you qualify, the FTB will waive the late-filing and late-payment penalties for one tax year. The demand-to-file penalty is harder to remove and generally requires showing reasonable cause.

Need Help Filing Back Taxes in Los Angeles?

Our CPA team prepares past-due federal and California returns, deals with FTB collections, and negotiates payment plans to resolve your balance.

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