Tax Deductions for California Landlords in 2026: The Complete List

Published January 29, 2026

Every deductible expense California rental property owners can claim in 2026, from mortgage interest and depreciation to management fees and the QBI deduction.

Tax Deductions Every California Landlord Should Know in 2026

I am not a CPA and this is not tax advice. I always tell our clients to work with a qualified tax professional for their specific situation. But after 15 years of managing 200+ rental units and working closely with our owners and their accountants, I have developed a strong understanding of the deductions that California landlords commonly leave on the table. Here is a practical walkthrough of what you should be discussing with your tax advisor.

Property Management Fees

Let me start with the obvious one since it is what we do. Property management fees are fully deductible as a business expense. Whether you pay 8 percent or 10 percent of collected rent, that entire amount comes off your rental income before taxes. For a property generating $3,000 per month in rent with a 10 percent management fee, that is $3,600 per year in deductible expenses. Some owners try to save money by self managing, but when you factor in the tax deduction, the effective cost of professional management is meaningfully lower than the sticker price.

Mortgage Interest

You can deduct the interest portion of your mortgage payment on rental properties. The key word is interest, not principal. On a typical 30 year mortgage in the early years, roughly 70 to 80 percent of your payment is going to interest, so this is usually one of the largest deductions available. As the loan matures and more of each payment goes to principal, this deduction shrinks. Your lender sends a 1098 form each year breaking out exactly how much interest you paid. This is the one deduction almost nobody misses, but I mention it because some newer landlords do not realize that investment property mortgage interest has no cap, unlike the $750,000 limit on personal residence mortgage interest.

Depreciation: The Deduction Owners Miss Most

This is the deduction that really moves the needle and the one I see owners misunderstand most often. The IRS allows you to depreciate the value of your rental building, not the land, just the building, over 27.5 years using a straight line method.

Here is a concrete example. Say you purchase a property for $1,000,000 and the assessor allocates 80 percent to the building and 20 percent to the land. Your depreciable basis is $800,000. Divided by 27.5 years, that gives you $29,090 per year in depreciation expense. That is $29,090 that reduces your taxable rental income without you spending a single additional dollar. It is a paper loss that shelters real income.

The catch is that when you eventually sell, you have to recapture that depreciation at a 25 percent federal rate. But between now and then, the annual tax savings are significant, especially if you are in a higher tax bracket. And if you do a 1031 exchange at sale, you can defer the recapture along with the capital gains.

Repairs vs Improvements: The IRS Distinction

This is where I see the most confusion and the most costly mistakes. The IRS draws a clear line between repairs and improvements, and they are treated very differently for tax purposes.

A repair maintains the property in its current condition. A new garbage disposal for $350 is a repair. Patching drywall, fixing a leaking faucet, replacing a broken window, repainting a unit in the same color. All repairs. All fully deductible in the year you incur them.

An improvement adds value, extends the useful life, or adapts the property to a new use. An $18,000 kitchen remodel is an improvement. A new roof, new HVAC system, adding a bathroom, new flooring throughout the entire building. These are improvements. They must be capitalized and depreciated over their useful life, which varies by the type of improvement.

The difference matters enormously at tax time. A $350 garbage disposal replacement reduces your taxable income by $350 this year. An $18,000 kitchen remodel gets depreciated over 27.5 years, giving you only about $654 per year in deductions.

Property Taxes and Insurance

Your annual property tax bill is fully deductible against rental income. So are your insurance premiums, including hazard insurance, liability coverage, and flood insurance if applicable. For a typical South Bay rental property, you might be looking at $8,000 to $15,000 per year in property taxes depending on when the property was purchased and what Prop 13 basis applies, plus $1,200 to $2,400 in insurance. All deductible.

Travel and Mileage

If you drive to your rental property for inspections, maintenance oversight, or tenant meetings, you can deduct mileage at the IRS standard rate of 70 cents per mile for 2026. If you own multiple properties or live a distance from your rentals, this adds up. An owner who drives 30 miles round trip to a property twice a month accumulates 720 miles per year, which at 70 cents per mile is $504 in deductions. A few hundred dollars is still worth claiming.

Professional Services

Fees paid to attorneys, accountants, and tax preparers for work related to your rental properties are deductible. So are costs for real estate specific software, advertising expenses for listing vacant units, and subscriptions to landlord associations or industry publications.

The QBI Deduction: Section 199A

This is the deduction that a surprising number of landlords either do not know about or do not fully utilize. Section 199A of the tax code allows owners of pass through entities, which includes sole proprietors, LLCs, and S corporations, to deduct up to 20 percent of their qualified business income.

For rental property owners, this means that if your net rental income after all other deductions is $50,000, you could potentially deduct an additional $10,000 under Section 199A, reducing your taxable rental income to $40,000. The rules around qualifying are complex and there are income phase outs that start at $191,950 for single filers and $383,900 for joint filers, but for many South Bay landlords, this deduction is available and significant. Talk to your CPA about whether your rental activity qualifies.

California Specific Considerations

California does not offer a state level capital gains exclusion, so when you sell a rental property, you are paying both federal and state capital gains taxes. The combined rate can exceed 35 percent, which is why 1031 exchanges are so popular among California landlords.

Prop 13 has implications for property tax deductions. If you have owned a property since the 1990s, your assessed value and therefore your property tax may be dramatically lower than current market value. That is great for your cash flow but means your property tax deduction is smaller than it would be for a recent purchaser.

Common Mistakes I See

After working with hundreds of landlord clients, here are the deduction mistakes I see most frequently.

Not tracking mileage. This is the easiest deduction to claim and the easiest to forget. Keep a log, use an app, whatever works for you. But track it.

Mixing personal and rental expenses. If you use a personal credit card for a property repair, it can get lost in your statements. Use a dedicated account for rental expenses.

Misclassifying improvements as repairs. That $18,000 kitchen remodel is not a repair just because you want to deduct it all this year. Get it wrong and you are inviting an audit adjustment.

Forgetting depreciation entirely. I have met owners who have owned rental property for a decade and never claimed depreciation. They left tens of thousands of dollars on the table. Even worse, the IRS will recapture depreciation when you sell whether you claimed it or not, so you pay the recapture tax regardless. There is zero benefit to skipping depreciation.

Skipping the home office deduction. If you manage your rental properties from a dedicated space in your home and you meet the IRS requirements, you can deduct a proportional share of your home expenses. Not every landlord qualifies, but many do and do not realize it.

Rental property is one of the most tax advantaged asset classes you can own, but only if you claim the deductions you are entitled to. Work with a CPA who specializes in real estate, keep meticulous records, and review your returns each year to make sure nothing is falling through the cracks.

Topics: taxes, california landlord, tax deductions, depreciation, property management, south bay

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Schofield Properties is a family run property management company at 323 Richmond St, El Segundo, CA 90245. We have managed the South Bay since 1972 and personally oversee about 186 doors today. Book a call to talk about your property.