California FTB letter: California Taxes – How you can help (no single public notice number listed)

This California Franchise Tax Board letter is an outreach notice — not an audit, not an assessment, and not a demand. The FTB sends it to taxpayers or their household members when it has information suggesting a California tax return may not have been filed for a specific year, or when it wants to make sure taxpayers know about credits and programs they might qualify for. It’s an informational contact, but it’s worth reading carefully because it often signals that the FTB has started looking at your file.

The letter typically asks you to either confirm that you filed a return for the year in question or to provide information about why you didn’t need to. Sometimes it’s triggered by a W-2 or 1099 that didn’t match a filed return. Other times it’s part of a broader FTB outreach campaign to specific taxpayer segments — renters who might qualify for the Renter’s Credit, low-income workers who might qualify for CalEITC, or nonresidents who received California income.

Even though it’s not a demand notice, you shouldn’t ignore it. Failing to respond can push the FTB toward issuing a formal Demand for Tax Return (FTB 4601), which is a harder situation to deal with. We recommend responding promptly, confirming your filing status for the year in question, and providing any documentation the letter requests.

Whether you need to file a California return after moving depends on whether you had California-source income during the year the letter references. California taxes nonresidents on income from California sources — wages earned while physically working in California, rental income from California property, gains from selling California real estate, and income from California partnerships or S corporations. If your income from California sources exceeded $18,931 (2024 threshold for single filers) for that year, you’re required to file Form 540NR.

The tricky part is remote work. If you were employed by a California company but performed all your work from another state after moving, those wages generally aren’t California-source income — the income is sourced to where you perform the services, not where your employer is located. But California’s Franchise Tax Board has been aggressive about auditing remote workers and questioning whether they truly severed their California residency. Stock options and deferred compensation from California employment can remain California-source even years after you left.

The FTB letter is often the first signal that California thinks it has a claim on your income. Responding with a clear explanation of your move date, your domicile change, and your income sources for the year can resolve the inquiry quickly. We help former California residents respond to these letters and determine their actual filing obligations — sometimes the answer is no return required, sometimes a 540NR with limited California income.

The California Earned Income Tax Credit (CalEITC) is one of the most commonly missed credits the FTB outreach letters reference. For 2024, the maximum CalEITC is $3,529 for families with three or more children, and you can qualify with earned income up to $30,931 for a family with children. Unlike the federal EITC, CalEITC is available to taxpayers who use an ITIN — meaning undocumented workers can claim it even without a Social Security number.

Young Child Tax Credit adds up to $1,117 per child under age 6 if you qualify for CalEITC. The Foster Youth Tax Credit gives up to $1,117 to eligible current or former foster youth. The California Renter’s Credit provides $60 for single filers or $120 for joint filers who paid rent on California property for the full year and meet income thresholds — currently under $50,746 for single filers. These credits are refundable in some cases, meaning you can get money back even if you owe no tax.

A lot of eligible taxpayers don’t claim these credits because they don’t know about them or assume they don’t qualify. The FTB sends the ‘California Taxes – How You Can Help’ letter partly as a way to increase credit uptake among eligible filers. We review every California return we prepare for credit eligibility and make sure clients get everything they’re entitled to — not just what’s obvious.

Getting an FTB letter when you’ve never been a California resident is more common than you’d think. The FTB receives copies of W-2s, 1099s, and K-1s that list California payers — and if your name appears on those documents, California’s automated systems flag your record. You might have received consulting income from a California company, royalties from a California publisher, or a K-1 from a California-based partnership or trust. Any of those can trigger California source income and an FTB outreach.

Another common scenario: you participated in a California real estate transaction, received proceeds from a California trust, or worked temporarily in California during a business trip. California’s definition of source income is broad, and the FTB’s matching systems are thorough. It’s also possible the letter is a case of mistaken identity — same name as a California filer, or a slight data error in the payer’s records.

The right response is to determine exactly what income the FTB is referencing and whether that income is actually California-source. We help clients respond to these letters clearly and specifically. If no return is required, a brief written explanation with supporting documentation typically resolves it. If a return is required, we prepare a nonresident 540NR showing only the California-source income.

Respond within the timeframe specified on the letter — typically 30 days — with a clear, factual explanation. If you already filed the return in question, include a copy of the filed return or the confirmation number from your electronic filing. If you weren’t required to file, explain why concisely: your California income was below the filing threshold, you had no California-source income, or you moved out of state on a specific date. Be precise about dates and amounts.

Don’t overshare. The FTB is asking a specific question, and you should answer that specific question without volunteering information about other income sources, other years, or other tax matters. Providing more than the letter requests can open additional questions that wouldn’t have been raised otherwise. This isn’t about being evasive — it’s about responding to what’s actually being asked rather than creating new inquiry threads.

We draft FTB outreach letter responses for clients all the time. The goal is a response that’s complete enough to close the inquiry cleanly, specific enough to answer the FTB’s questions, and organized well enough that a reviewer can verify it quickly. A poorly organized or vague response tends to generate follow-up requests, which delays resolution. A clean response often ends the inquiry in one exchange.