Here is the number that trips up almost every California LLC owner who buys a $40,000 truck or a $25,000 equipment package before year-end: they assume the federal deduction they claimed also wipes out their California tax bill. It does not. For the 2025 tax year, bonus depreciation for LLC 2025 California works very differently on your federal return than it does on Form 568, and that gap is where thousands of dollars get lost, misreported, or flagged by the Franchise Tax Board.

If you run an LLC in California and you want to write off equipment, vehicles, or machinery this year, you need to understand two separate rulebooks that do not agree with each other. Let’s break down exactly what you can deduct, how much, and where the state quietly refuses to follow along.

Quick Answer: How Bonus Depreciation Works for a California LLC in 2025

For 2025, the federal government allows bonus depreciation on qualifying business assets, but the percentage has been phasing down under the schedule set by the Tax Cuts and Jobs Act. California has never conformed to federal bonus depreciation. That means you can take a large first-year federal write-off, but on your California return you must add that deduction back and depreciate the asset the slow way using standard methods.

Bottom line: You get the big deduction federally, a much smaller one in California, and you must track two different depreciation schedules for the same asset for its entire useful life. Miss that step and your California return will not match, which is one of the most common triggers for an FTB notice.

What Bonus Depreciation Actually Is (In Plain English)

Depreciation is how the tax code lets you deduct the cost of a business asset over time instead of all at once. If you buy a $30,000 piece of equipment, the standard rules spread that deduction across five, seven, or more years depending on the asset class under the Modified Accelerated Cost Recovery System, known as MACRS (in plain English: the IRS table that decides how many years each type of asset gets written off over).

Bonus depreciation is the accelerator pedal. Instead of waiting years, it lets you deduct a large chunk of the asset’s cost in the very first year you place it in service. “Placed in service” means the asset is actually ready and available for business use, not just purchased. A delivery van sitting on a dealer lot is not placed in service. The same van, insured and driving to job sites, is.

This distinction matters enormously for California LLC owners because you are dealing with pass-through taxation. The LLC itself generally does not pay federal income tax. Instead, profits and deductions flow through to you personally. So the depreciation deduction shrinks your personal taxable income, but it does so on two separate returns with two separate sets of math.

Why the Federal Percentage Keeps Changing

Under the Tax Cuts and Jobs Act, 100% bonus depreciation applied to qualifying property placed in service through 2022. After that, the percentage began stepping down each year. This phase-down is one reason the timing of your equipment purchase matters so much now. A purchase made in December versus January can land in two different percentage brackets, changing your first-year write-off by thousands of dollars.

Because these percentages shift and because recent federal tax legislation has repeatedly adjusted the bonus depreciation rules, always confirm the current-year percentage before you file. You can verify the latest guidance directly through the IRS Publication 946 on depreciating property, which lays out the governing rules.

Bonus Depreciation for LLC 2025 California: The State Add-Back Problem

Here is the single most important thing to understand about bonus depreciation for LLC 2025 California: the state does not play along. California has historically decoupled from federal bonus depreciation entirely. The Franchise Tax Board requires you to add back any federal bonus depreciation you claimed and instead depreciate the asset using California’s own rules, which generally follow older, slower methods.

Let’s put real numbers on this. Say your California LLC buys $100,000 of qualifying equipment and places it in service in 2025.

• Federal return: You might deduct a very large portion of that $100,000 in year one through bonus depreciation, dramatically lowering your federal taxable income.
• California return: You add back that bonus amount. Instead, the equipment depreciates over its normal recovery period (often five or seven years), so your first-year California deduction might only be $14,000 to $20,000.

That difference does not disappear. It simply means your California deductions are spread across future years. You are not permanently losing the write-off, but you are losing the timing benefit on your state return, and your cash flow planning needs to account for a higher California tax bill in year one than you might expect.

For California business owners juggling entity structure, equipment timing, and multi-year planning, this kind of federal-state mismatch is exactly why coordinated strategy matters. Our tax planning services exist to map out these timing differences before you sign a purchase order, not after you file.

Section 179: California’s Partial Olive Branch

While California rejects federal bonus depreciation, it does allow a limited version of the Section 179 deduction. Section 179 lets you expense the full cost of qualifying equipment up front, similar to bonus depreciation, but with a key difference: California caps it far lower than the federal government does.

Federally, the Section 179 limit runs into the low millions of dollars. California’s Section 179 limit, by contrast, has historically been capped at $25,000 with a phase-out that begins once total equipment purchases exceed $200,000. So for smaller equipment purchases, Section 179 can actually give your California LLC a meaningful first-year deduction that bonus depreciation cannot. For larger purchases, you quickly hit the California ceiling.

Pro Tip: For a California LLC buying under $25,000 of equipment, electing Section 179 on both the federal and California returns often produces the cleanest result and the smallest add-back headache. Above that threshold, the state math gets complicated fast.

KDA Case Study: Riverside LLC Owner Avoids a $9,200 Surprise

Marcus runs a general contracting LLC based in Riverside, California, taxed as a partnership with his business partner. In early 2025 the business bought $120,000 in new equipment: a work truck, a trailer, and a package of power tools and generators. His previous preparer had claimed full federal bonus depreciation and simply copied the same deduction onto the California return, assuming conformity. It was wrong.

When Marcus came to KDA for a second look, we caught that the California return had understated taxable income by roughly $95,000 because of the missing bonus depreciation add-back. Left uncorrected, that mismatch was almost certain to draw an FTB notice, and the resulting underpayment, penalties, and interest would have landed around $9,200.

Here is what KDA did. First, we corrected the California return to add back the federal bonus depreciation and set up the proper California MACRS schedule. Second, we elected California Section 179 up to the $25,000 state cap to recover part of the first-year benefit legally. Third, we built a dual-schedule tracking system so every future year’s return would reconcile automatically. The engagement cost Marcus $3,200. By avoiding the $9,200 in exposure and optimizing his Section 179 election, his first-year return on the engagement came out to roughly 2.9x, and he now has clean books that will save hours and dollars every year going forward.

Ready to see how we can help you? Explore more success stories on our case studies page to discover proven strategies that have saved our clients thousands in taxes.

How to Claim Bonus Depreciation Correctly as a California LLC

Doing this right is less about aggression and more about discipline. Here is the step-by-step process to deduct equipment while staying clean on both returns.

1. Confirm the asset qualifies. Bonus depreciation applies to tangible property with a recovery period of 20 years or less, certain software, and qualified improvement property. Land and most buildings do not qualify.
2. Nail down the placed-in-service date. The deduction belongs to the year the asset is ready and available for business use. Keep delivery records, insurance activation, and first-use logs.
3. Claim the federal deduction on Form 4562. This is the IRS form where you report depreciation and bonus depreciation. Keep a copy tied to each asset.
4. Add it back on California Form 568. California LLCs file Form 568. You must adjust for the federal-California depreciation difference so the state return reflects California’s slower method.
5. Elect California Section 179 if it helps. For purchases at or under the state cap, this recovers part of the lost first-year benefit.
6. Maintain dual depreciation schedules. Track the federal basis and the California basis separately for every asset until it is fully depreciated or sold.

Business owners who want a broader roadmap for coordinating these moves across entity type, payroll, and deductions can explore how KDA supports business owners with multi-year tax strategy.

Documentation the FTB and IRS Expect You to Keep

• Purchase invoices showing cost, date, and description of each asset
• Proof of the placed-in-service date (insurance, delivery, first-use records)
• Form 4562 for the federal deduction and the supporting depreciation schedule
• Your California depreciation worksheet showing the add-back and the state basis
• Records of any trade-in or prior business use that affects basis

Why Most LLC Owners Get This Wrong

The most common mistake is assuming California conforms to federal depreciation. It does not, and it has not for years. Tax software that is not configured correctly, or a preparer who files dozens of returns quickly, can carry the federal number straight onto the California return without the add-back. The result looks fine until the FTB’s matching systems compare your federal and state figures and spot the discrepancy.

The second common mistake is ignoring the long-term tracking burden. Because your federal and California basis in each asset will differ for years, selling or disposing of that asset later creates two different gain or loss calculations. If you never tracked the California basis, you cannot compute the correct California gain when you sell, which can create another mismatch and another notice.

Red Flag Alert: If your California return and federal return show identical depreciation on assets purchased in 2025, that is a signal something was skipped. The two should almost never match when bonus depreciation is involved. This can usually be corrected by amending the California return before the FTB flags it.

Do I Have to Pay the California LLC Fee Regardless of Depreciation?

Yes, and this surprises many owners. California LLCs owe an annual $800 minimum franchise tax plus a gross receipts-based LLC fee once revenue crosses certain thresholds, regardless of how much depreciation you claim. Depreciation lowers your taxable income, but it does not eliminate the $800 minimum tax or the LLC fee tied to total gross receipts. You pay those using Form 3522 for the annual tax and Form 3536 for the estimated fee.

This is why depreciation strategy and entity strategy have to be planned together. A deduction that zeroes out your income still leaves you owing the state’s minimum obligations. You can confirm current California requirements through the California Franchise Tax Board LLC guidance.

Should I Use Bonus Depreciation or Spread the Deduction Out?

This is a genuine strategy question, not a formality. Taking the largest possible deduction this year is not always the smartest move.

Accelerate the deduction if:

• You had a high-income year and want to reduce this year’s federal tax now
• You expect lower income in future years
• You need the cash-flow relief from a smaller current tax bill

Spread the deduction out if:

• You expect significantly higher income in coming years and want deductions to offset it
• Your current income is already low, so a huge deduction would be partially wasted
• You want to preserve deductions to offset future gains

Because California forces a slower schedule anyway, many California LLC owners find the state deduction naturally spreads out whether they like it or not. The real decision point is on the federal side, where you control the timing.

What Happens If I Already Filed Wrong?

If you filed a 2025 or prior California return that copied federal bonus depreciation without the add-back, you are not stuck. You can amend the California return to correct the depreciation, add back the improper deduction, and set up the correct state basis going forward. Amending proactively is almost always cheaper than waiting for an FTB notice, which adds penalties and interest on top of the corrected tax.

If you have already received a notice, the worst move is to ignore it. California’s assessment process moves on a clock, and responses are time-sensitive. This is one of those situations where having a preparer who knows exactly how the depreciation add-back works can turn a stressful letter into a routine correction.

Frequently Asked Questions

Does California allow bonus depreciation at all?

No. California does not conform to federal bonus depreciation. You must add back any federal bonus depreciation on your California return and depreciate the asset using California’s standard methods instead.

Can my California LLC still get a big first-year deduction?

Partially. California allows a limited Section 179 deduction, historically capped at $25,000 with a phase-out above $200,000 in purchases. For smaller equipment buys, this gives a meaningful first-year California deduction even though bonus depreciation is off the table.

Which forms do I need for depreciation as a California LLC?

Federally, you use Form 4562 to report depreciation. For the LLC itself you file California Form 568, and you pay the annual tax and fee using Forms 3522 and 3536. Your California depreciation worksheet documents the add-back.

What if I sell the equipment later?

Because your federal and California basis differ, the gain or loss on sale will be calculated differently on each return. This is why you must keep separate depreciation schedules for the life of every asset.

Book Your California LLC Depreciation Strategy Session

If your LLC bought equipment, vehicles, or machinery this year and you are not completely certain your California return reflects the required bonus depreciation add-back, that uncertainty is costing you in either overpaid tax or FTB exposure. We will review your depreciation schedules, catch any federal-California mismatches before the state does, and build a dual-tracking system that keeps every future return clean. Click here to book your consultation now.

This information is current as of 10/8/2026. Tax laws change frequently. Verify updates with the IRS or FTB if reading this later.