By the Three Palms Rental Management team, San Diego property management experts · Updated August 2026
Every deduction a San Diego landlord will claim for 2026 is won or lost before December 31. The receipts you filed, the repairs you finished in time, and the 1099s you are ready to send all get decided in the final weeks of the year, and 2026 brought real changes worth knowing: a higher 1099 threshold, a now-permanent 20% pass-through deduction, and permanent 100% bonus depreciation. Walk into tax season organized and you keep more of your rental income; walk in scrambling and you leave money on the table.
This guide gives San Diego rental owners a plain-language, year-end checklist: what you can deduct, what changed for 2026, how depreciation and 1099s work, and the moves to make before the calendar flips. It is a roadmap to bring to your tax professional, not a substitute for one.
Why does year-end tax prep matter for San Diego landlords?
Year-end tax prep matters because most rental deductions depend on actions and documentation completed by December 31, not on tax day in April. Once the year closes, you cannot go back and generate the records, finish the deductible repair, or send the contractor payment that would have shifted your taxable income. The work you do in the final weeks sets your entire tax picture.
For a San Diego landlord, the stakes are higher because California layers its own income tax on top of the federal bill, so disorganized books cost you twice. Clean, complete records are what let your tax professional claim every legitimate deduction, apply the right depreciation, and keep your return audit-ready.
The owners who pay the least are not the ones with secret loopholes. They are the ones who tracked expenses all year and squared everything away before the deadline.
What rental expenses can San Diego landlords deduct?
San Diego landlords can deduct the ordinary and necessary expenses of operating a rental, and they add up quickly. The common deductible categories include mortgage interest, property taxes, landlord insurance, property management fees, repairs and maintenance, utilities you pay, HOA dues, advertising, legal and professional fees, and travel or mileage related to the property.
The key distinction is between a repair and an improvement. A repair, such as fixing a leak or patching drywall, is generally deductible in full the year you pay for it. An improvement that adds value or extends the property’s life, such as a new roof or a remodel, is capitalized and depreciated over time rather than deducted all at once.
Everything you report flows onto Schedule E, the supplemental income and loss form filed with your Form 1040. The cleaner your categorized records, the more complete and defensible those deductions are.
What changed for landlord taxes in 2026?
Three federal changes stand out for landlords in 2026, all stemming from recent tax legislation. First, the 20% qualified business income (QBI) deduction for eligible rental income is now permanent, letting many landlords deduct up to a fifth of their net rental income. Second, 100% bonus depreciation is now permanent, so qualifying assets can be written off in the year placed in service. Third, the 1099-NEC reporting threshold rose to $2,000, up from the long-standing $600.
Those changes matter in different ways. The permanent QBI deduction and bonus depreciation are planning opportunities that can meaningfully lower a federal bill, though eligibility and details are worth confirming with a professional. The higher 1099 threshold changes who you must report contractor payments to this year.
For a San Diego owner, the takeaway is that the 2026 rules are more favorable on depreciation and pass-through income than many past years, which makes year-end planning around capital improvements and entity structure especially worth a conversation with your tax advisor.
How does depreciation work on a San Diego rental?
Depreciation lets you deduct the cost of the building itself over time, and it is one of the most valuable landlord deductions. Residential rental property is depreciated over 27.5 years under the MACRS system, so each year you deduct a portion of the building’s value (not the land) against your rental income, even though you paid no new cash.
On top of that annual depreciation, 2026’s permanent 100% bonus depreciation allows qualifying shorter-lived assets, such as certain appliances, flooring, and improvements, to be fully written off in the year they are placed in service, rather than spread over years. This is where timing a capital purchase before December 31 can pull a large deduction into the current year.
One caution: depreciation is recaptured and taxed when you eventually sell, unless you defer it through a 1031 exchange. That is why depreciation planning and eventual exit strategy go hand in hand for serious San Diego investors.
Do I need to send 1099s to my contractors?
Yes, if you paid an unincorporated contractor $2,000 or more for services on your rental during 2026, you generally must issue a Form 1099-NEC. This threshold rose from the long-standing $600, so some smaller payments that would have required a 1099 in prior years may not this year. When in doubt, confirm the current requirement with your tax professional.
To be ready, collect a completed Form W-9 from every contractor before you pay them, so you have their legal name, address, and taxpayer ID on file. Chasing that information in January, after the work is done and the contractor has moved on, is a common and avoidable year-end headache.
The 1099-NEC forms are generally due to both the contractor and the IRS by January 31, so the preparation belongs in your year-end routine, not your April scramble.
What year-end moves can lower a San Diego landlord’s 2026 tax bill?
The core year-end moves are timing your deductible expenses and completing your documentation before December 31. If you have deductible repairs or maintenance planned, completing and paying for them in 2026 pulls the deduction into this tax year. Similarly, placing a qualifying appliance or improvement in service before year-end can unlock bonus depreciation for 2026.
Beyond timing, the highest-value move is simply getting organized: reconcile your income and expenses, gather receipts and statements, confirm your depreciation schedule, and collect contractor W-9s. Give your tax professional a complete, categorized picture and they can apply deductions like QBI and depreciation correctly rather than conservatively.
Do not force spending just to chase a deduction, and do not let a strategy override good business judgment. The goal is to capture every deduction you have legitimately earned, in the right year, with the records to back it up.
How does California differ from the federal rules?
California taxes your rental income and does not fully conform to several favorable federal provisions, so your California return can look different from your federal one. Notably, California generally does not allow federal bonus depreciation and sharply limits Section 179 expensing, which means an asset you write off immediately for federal purposes may still have to be depreciated over time for California.
This nonconformity is exactly why San Diego landlords should not assume a federal tax move produces the same California result. A capital purchase that generates a big federal deduction through bonus depreciation may yield only a gradual deduction on your California return.
Given California’s high income tax rates, getting the state treatment right matters as much as the federal side. This is the kind of detail to work through with a California tax professional who handles rental property, rather than assuming conformity.
What is the year-end tax prep checklist for San Diego landlords?
Work through this list before December 31:
- Reconcile income and expenses for the year and categorize every transaction.
- Gather documentation, including mortgage and property tax statements, insurance, and receipts.
- Collect contractor W-9s and flag anyone paid $2,000 or more for a 1099-NEC.
- Time deductible repairs, completing and paying for planned maintenance before year-end.
- Review capital purchases and placed-in-service dates for potential bonus depreciation.
- Confirm your depreciation schedule and note any improvements to capitalize.
- Book a session with your tax professional to apply QBI, depreciation, and California rules correctly.
Run this before the year closes, because nearly every item on it becomes impossible to fix once January arrives.
How does professional management make tax time easier?
Professional management makes tax time easier by keeping clean, categorized books all year, so year-end is a review rather than a reconstruction. A property manager tracks income and expenses in real time, retains receipts and invoices, collects contractor W-9s, and produces the annual statements your tax professional needs, which means fewer missed deductions and a faster, more accurate return.
That organization is worth real money at tax time. Missed receipts are missed deductions, and a disorganized year often means a conservative return that overpays. Consistent recordkeeping captures every legitimate expense and keeps you audit-ready.
If you want your San Diego rental’s books tax-ready without the year-end scramble, request a free rental analysis from Three Palms Rental Management. We keep clean financials, track deductible expenses, handle contractor documentation, and deliver the reports that make your tax professional’s job, and your return, far simpler.
Frequently asked questions about year-end landlord taxes
What expenses can I deduct on a San Diego rental?
You can deduct ordinary and necessary operating expenses, including mortgage interest, property taxes, insurance, management fees, repairs, utilities you pay, HOA dues, advertising, and legal and professional fees. Repairs are deductible in the year paid, while improvements are capitalized and depreciated.
Did the 1099 rules change for landlords in 2026?
Yes. The Form 1099-NEC threshold rose to $2,000 in 2026, up from $600. If you paid an unincorporated contractor $2,000 or more for services on your rental, you generally must issue a 1099-NEC, typically due by January 31. Confirm the current rule with your tax professional.
How long do I depreciate a rental property?
Residential rental property is depreciated over 27.5 years under MACRS, deducting a portion of the building’s value each year. In 2026, permanent 100% bonus depreciation also lets qualifying shorter-lived assets be fully written off in the year placed in service.
Does California follow the federal bonus depreciation rules?
Generally no. California does not fully conform to federal bonus depreciation and limits Section 179, so an asset written off immediately for federal purposes may still need to be depreciated over time on your California return. Confirm your state treatment with a California tax professional.
What should I do before December 31 to lower my taxes?
Complete and pay for planned deductible repairs, place qualifying improvements in service, gather receipts and statements, collect contractor W-9s, and reconcile your books. Then meet your tax professional early so deductions like QBI and depreciation are applied correctly.
Disclaimer: This article is for general informational purposes only and does not constitute tax, legal, or accounting advice. Tax rules change and apply differently to each owner. Before making year-end tax decisions, consult a qualified tax professional familiar with California rental property about your specific situation.
