The Real Estate Tax Playbook: From First Home to Legacy

The headline finds you eventually: a tech worker wiped out six figures of taxable income with an Airbnb. It's true. I published the math myself in the short-term rental tax post, and it holds up. But it's the loudest tax break in real estate, and the loudest one is nowhere near the biggest.

Real estate's tax benefits stack over a lifetime. There's a set for when you buy, a bigger set for the years you hold, a set for the day you sell, and the largest of all for the day you're gone. Most people learn them one at a time, usually a few years after each one would have helped. This post lays out the whole map in one place, with the California reality check my SF clients actually need. Bookmark it, then go deep where your situation lives.

A note on timing, because tax posts age. I'm writing this in September 2026, during the Trump presidency, and much of what follows was reshaped by the tax law he signed on July 4, 2025: the One Big Beautiful Bill Act, the bill everyone shortens to the BBB. It made 100 percent bonus depreciation permanent and reshuffled the homeowner deductions, among a long list of changes. Where a rule below came from that bill, I say so. Where politics could change it again, I say that too.

In this playbook:

• When you own your home
• When you hold rentals (the long game)
• The famous one: short-term rentals
• When you sell
• When you pass it on
• Owning with partners (and the K-1)
• The California reality check
• The eleven-state map
• What social media gets wrong
• Who to call for what

The Whole Board at a Glance

Tax savings here is my shorthand for what a typical SF-price owner realistically keeps: small means hundreds to a few thousand dollars, medium means thousands a year, large means tens of thousands a year or a six-figure event, and largest means potentially seven figures across a family's holding period.

Strategy	Stage	Who it fits	Tax savings
Mortgage interest deduction	Own	Anyone with a loan up to $750K	Medium
Prop 13 assessment cap	Own	Every California owner, growing with each year held	Large
Augusta rule (14-day rental)	Own	Owners with a real business use	Small
Depreciation sheltering rent	Hold	Every landlord	Large
QBI 20 percent deduction	Hold	Profitable, actively run rentals	Medium
Cash-out refinance	Hold	Equity-rich owners who keep holding	Large
STR bonus depreciation	Hold	High W-2 earners who self-manage	Large
Section 121 exclusion	Sell	Anyone selling a longtime primary home	Large
1031 exchange	Sell	Investors trading up, not cashing out	Large
Opportunity Zones 2.0	Sell	Big gains, decade-long patience	Medium
Step-up in basis	Legacy	Every family that holds	Largest

When You Own Your Home

The buys-you-a-house tax breaks are real but modest, and Trump's BBB reshuffled them in July 2025.

Mortgage interest stays deductible on up to $750,000 of loan, now permanently. At today's rates that's roughly $50,000 of interest a year on a full-sized loan, deductible if you itemize, which at SF price points you will.

The SALT deduction is the one to read carefully, because the headlines oversold it for people like my clients. The cap rose to $40,400 for 2026. Then it phases down 30 cents for every dollar of income above $505,000, hitting the old $10,000 floor around $606,000. A senior engineer couple clearing $700K gets exactly what they got before: $10,000. The relief was aimed below SF tech compensation, and it reverts entirely in 2030.

Prop 13 is the quiet giant. Your assessed value locks at your purchase price and can rise at most 2 percent a year, while the market does whatever it does. Buy at $2M today and in fifteen years you may be paying property taxes on an assessment half your home's value. The benefit compounds for as long as you hold, which is a theme you'll notice all over this post.

Two small ones. If you're self-employed, a home office used regularly and exclusively for the business is deductible, worth a few thousand a year. And the Augusta rule, section 280A(g), lets you rent your home out for fewer than 15 days a year and pay zero tax on the income. Fleet Week, or a film shoot. Legit and simple. It supports a market-rate rental with real documentation. It does not support paying yourself $2,000 a day from your own S-corp for "board meetings," a move the Tax Court shredded in 2023. More on that in the myths section.

When You Hold Rentals: The Long Game

This is the section that deserves the most space, because it's where my clients actually build wealth. The flashy strategies compress a benefit into one year. Holding compounds several benefits across decades.

Start with depreciation, the engine of the whole machine. The IRS treats a residential rental building as wearing out over 27.5 years and lets you deduct the fiction annually. A duplex with $1M of building value generates about $36,000 a year in deductions without a dollar leaving your pocket. In practice that means a property can put real cash in your account each month while showing little or no taxable income. Rent that arrives lightly taxed, year after year, is the whole quiet appeal of being a landlord.

You can accelerate that engine. A cost segregation study breaks the building into components, and the short-life pieces qualify for the 100 percent upfront bonus depreciation the BBB made permanent, the same write-off that powers the short-term rental strategy. On a long-term rental the resulting loss is usually passive, so it can't touch your salary. It still shelters every dollar of rental profit for years ahead, and it carries forward until you sell. Portfolio builders front-load deductions this way even when a paycheck offset is off the table.

Everything you spend running the property deducts against the rent too: mortgage interest, insurance, repairs, the property manager, the miles and the software. If deductions exceed income, the loss usually can't touch your salary (that's the passive-loss wall the STR strategy was built to route around), but it doesn't vanish. It carries forward indefinitely to shelter future rental profit, and every suspended dollar releases at once when you sell. Long-term landlords often arrive at a sale with a decade of stored-up losses waiting to soften the gain.

If your rental runs at a profit, the QBI deduction can shave 20 percent off the taxable rental income, and the BBB made it permanent. Rentals qualify when they operate like a real business; the IRS safe harbor wants 250 hours a year of rental services across the portfolio, separate books, and time records. A landlord with a few buildings clears that without noticing.

Real estate professional status deserves an honest paragraph, since it's the route the tax-influencer crowd loves. Put in 750 hours a year and more than half your total working time in real estate, and your long-term rental losses turn non-passive against all income. It's genuinely powerful for full-time investors, and a non-working spouse can qualify on their own hours. Two catches. It's nearly impossible next to a W-2 career, as I covered in the follow-up on the hour tests. And California never adopted it at all. On the CA return, rental losses stay passive no matter what your federal return says. Almost nobody mentions that part.

Then there's the benefit that isn't a deduction: borrowing. As the property appreciates and the loan amortizes, you can refinance and pull equity out, and loan proceeds are not income. There's no tax bill and no sale. The tenants service the new debt. This is the mechanism behind the buy, borrow, die strategy, and it works at duplex scale, not just at dynasty scale.

The Famous One: Short-Term Rentals

The strategy in all the headlines gets a summary here because I've already given it two full posts. The shape: buy a property, run it with average guest stays of seven days or less, self-manage past the material-participation hour tests, and a cost segregation study plus permanent 100 percent bonus depreciation can produce a six-figure first-year loss that offsets your salary. A $500K earner buying a $1.2M Tahoe cabin can cut roughly $90K off their federal bill in year one. The full walkthrough is here, including what the 100 percent actually applies to, and the follow-up covers how it works alongside a full-time job.

A disclosure from my own portfolio: I own two furnished rentals in Las Vegas, and they don't qualify. They run on medium-term stays, a month or more at a time, which keeps them on the ordinary passive-loss rules. I chose that trade-off for steadier tenants and less turnover work. The seven-day line is bright, and being an investor doesn't exempt you from it.

Keep the strategy in proportion. It's one year of acceleration on one property. The sections on either side of this one are where more money accumulates, more quietly.

When You Sell

Selling is where every deferred dollar comes due, so the exit you choose matters as much as anything you did while holding.

For your own home, section 121 excludes $250,000 of gain if single and $500,000 if married, once you've lived there two of the last five years. Illustrative example: a couple bought an SF home for $1M in 2012 and sells for $2.2M today. After selling costs, the gain is about $1.1M. The exclusion erases $500K; the remaining $600K faces roughly 24 percent federal (20 percent capital gains plus the 3.8 percent investment tax) and California's ordinary rates, call it $200K combined. Painful, and still about $170K better than no exclusion. Two SF-specific lessons: appreciation here outruns a cap that hasn't changed since 1997, and every remodel receipt you kept raises your basis and shrinks the taxable slice. (Proposals to raise or eliminate this tax on home sales keep making headlines, including this summer. As of this writing, nothing has passed.)

For a rental, the stakes are bigger because depreciation comes back. Take a couple who bought a two-unit building in 2014 for $1.5M, rented it since, and could sell for $2.8M today. Twelve years of depreciation, about $435K, lowered their basis; the total gain approaches $1.6M. Illustrative numbers, four ways out:

Path	Tax now	What happens
Sell outright	~$580K	Roughly $110K depreciation recapture, $230K federal gains tax, $60K investment surtax, and $180K to California. They keep about $2.1M.
1031 exchange	$0	Full value rolls into a larger property. Deferred, and the clock keeps running. Exchange out of state and the FTB tracks the CA gain forever on Form 3840.
Cash-out refi, keep holding	$0	Pull several hundred thousand tax-free, keep the rents, keep Prop 13, keep depreciating what's left.
Hold until death	$0, ever	Heirs receive a stepped-up basis at market value. The $580K liability, recapture included, disappears.

That last row explains most of how real estate families behave. One path pays $580K. One path defers it. One path borrows around it. One path erases it. The strategies aren't rivals; a 1031 or a refi is usually how you get to the hold-until-death ending.

Two more exit tools, briefly. An installment sale spreads the gain across years of payments, useful for managing brackets, with one nasty catch: depreciation recapture is due in full in year one even if the first payment is small. And Opportunity Zones got renewed and made permanent, with a new version starting January 2027 that defers gains rolled into designated funds for five years and eliminates tax on the fund's own growth after ten. California doesn't conform, so the state's share continues regardless.

When You Pass It On

Here's the ending the whole playbook builds toward. Under current law, assets your heirs inherit get a stepped-up basis: their cost basis resets to market value on the day you die. Every dollar of appreciation, and every dollar of depreciation recapture, from your entire holding period simply never gets taxed as income. The federal estate tax only starts above $15M per person, $30M per married couple, as of 2026. Below those numbers, held real estate passes income-tax-free.

California married couples get an upgrade most people miss: community property gets a double step-up. When the first spouse dies, both halves of the property reset to market value, so the surviving spouse could sell the next month with no gain at all. This depends on how title is held. Community property, yes. Plain joint tenancy, only half steps up. A one-page titling conversation with an estate attorney can be worth six figures.

The California catch in the legacy chapter is Prop 19. Since 2021, your kids inherit your Prop 13 tax assessment only on a primary residence they actually move into within a year, and only up to about $1.04M of excluded value above your old assessment. Rental and investment property gets fully reassessed at market when it transfers, which can triple the property-tax bill on the building your family planned to keep. Prop 19 planning is its own discipline; know the rule exists before you need it. And no, California has no estate tax. The feds are the only ones at that particular door.

Owning With Partners: The K-1 Life

Most people's first big building isn't bought alone. Two couples split a fourplex, or four friends pool for a small apartment building. Group ownership is how ordinary savers reach buildings that institutions would otherwise own, and the tax treatment is genuinely friendly once you understand the paperwork.

The standard structure is an LLC taxed as a partnership. The entity itself pays no federal income tax. Instead it files an information return, Form 1065, and sends each partner a Schedule K-1: a short summary of your slice of everything the property did that year. Your share of the rental income, your share of the depreciation, your share of the mortgage interest, your share of the gain when it sells. You drop those numbers into your own return, and each item keeps its character on the way through. Long-term gain arrives as long-term gain. Passive rental income arrives passive.

The benefits compound nicely in a group. One cost segregation study spreads its deduction across every partner. Depreciation flows to each of you proportionally, sheltering your share of the rent the same way it would if you owned alone. A cash-out refinance distributes tax-free to everyone at once. And a well-drafted operating agreement can allocate items unevenly when that reflects the real deal, such as the money partner taking a larger share of early losses. The IRS requires those allocations to have real economic substance, so that part is drafting work for a professional.

Now the implications, because I've watched them surprise people. K-1s arrive late; the partnership has to close its books before you can file, and in practice many partners extend to October every year. Your deductible losses are capped by your basis, roughly what you put in plus your share of the property's debt, so you can't deduct past your true skin in the game. The passive-loss rules from earlier still apply at your personal level; a K-1 doesn't change them. Out-of-state partners usually owe a nonresident return in the property's state. And California charges an LLC $800 a year plus a gross-receipts fee that scales into the thousands, even though the LLC itself pays no federal income tax.

The biggest trap is the exit. A partnership can 1031 the whole building as a unit, but one partner can't peel off their share and exchange it alone without advance planning. The workaround, converting to tenant-in-common ownership well before the sale so each owner can pick their own exit (the "drop and swap"), works best when it's set up early and papered carefully. Decide what happens when one partner wants out before anyone wires a deposit, and put it in the operating agreement.

The California Reality Check

Every strategy above has a federal version and a California version, and they diverge enough that quoting only federal numbers is how people get surprised. In one place:

• No bonus depreciation. The STR strategy's big deduction is added back on the state return and recovered slowly.
• No real estate professional status. Rental losses are passive for CA no matter your hours.
• Capital gains are ordinary income, up to 13.3 percent at the top. No preferential rate.
• 1031 exchanges work, but exchanging into another state starts a lifetime annual filing, and the FTB collects its deferred share when you finally sell.
• Opportunity Zone benefits are federal only here.
• On the other side of the ledger: Prop 13's assessment cap and the community-property double step-up are two of the best deals in the country, and both are California-specific.

Net effect: California is a harder state to run deductions in, and one of the best states to hold and die in. Structure accordingly.

The Eleven-State Map

I'm licensed in California, and I invest well beyond it. I've operated rentals in Boston, Las Vegas, Michigan, Ohio, and Florida, and I track eleven states closely because that's where my clients' money actually moves: California, Nevada, Massachusetts, Florida, Illinois, Texas, Michigan, Ohio, Colorado, Washington, and Wyoming. The federal playbook above works in all of them. The state layer is where identical buildings produce different outcomes.

The pattern that emerges when you line them up: every state picks a moment to tax you. California taxes the earning. Illinois, Texas, and Ohio tax the holding, through property taxes with no acquisition-value cap. Washington taxes the exit, with an excise of up to about 3.5 percent of the gross sale price that a 1031 cannot defer. Massachusetts taxes the estate, down to a $2 million threshold that reaches a nonresident's MA real estate. And Nevada, Florida, and Wyoming mostly decline to tax you at all, which is why so much California money retires there.

Pick a state below to see its point of view: how it taxes the rent, whether the big federal write-off survives the state return, and the one thing I would want to know before wiring a deposit there.

This is also where my own path is heading. I work these markets today as an investor and through local partners, and getting licensed across these states is the roadmap, because the clients I serve don't build wealth in one state anymore. When a move involves a market where I don't hold a license, I say so, and I bring in someone who does.

What Social Media Gets Wrong

"Write off the whole property in year one." The 100 percent applies to components with short tax lives, usually a quarter to a third of a building. I broke down the real arithmetic in the STR post's myth section. Anyone promising the rest is selling a course.

"Real estate lets you eliminate taxes forever." Almost every strategy here defers. Deferral is genuinely valuable; money working for you beats money at the IRS. But only one thing on this page erases tax, and it's the step-up at death. Say "defer" when you mean defer.

"Pay yourself $2,000 a day under the Augusta rule." The 14-day exclusion is real. Renting your living room to your own company at resort prices is how you meet the Tax Court, which cut one group's $291K of "board meeting rent" down to about $500 a day. Market rate, real business purpose, real records, kept at the time.

"The SALT cap is fixed now." For incomes above roughly $606K it's the same $10,000 it's been since 2018, and the whole thing sunsets in 2030 anyway.

Who to Call for What

A CPA runs the numbers and the returns; get one who works with real estate investors specifically. A tax attorney enters for structures and anything contested. An estate planner handles the titling and trust work that the legacy chapter runs on, and in California that conversation should happen years earlier than feels natural. And my seat at the table is the asset itself: finding the property and the market where the strategy is actually worth executing. I keep a bench of all three professions and I'm glad to make introductions.

If you want to talk about where you are in this lifecycle and what the next move looks like, call me at (415) 517-7071. That conversation is free, and it's the part of this work I like most.

Quick Answers

Do I need an LLC to get these benefits? No. Every strategy here works for individual owners. Entities are about liability and partners, mostly.

Does the $500K home-sale exclusion still exist? Yes, $250K single and $500K married, unchanged since 1997. Proposals to expand it haven't passed.

Can my rental losses offset my salary? Generally no; they're passive. The exceptions are the short-term rental route, real estate professional status (federal only), and a small allowance that phases out by $150K of income.

Is a 1031 exchange still legal after the 2025 tax bill? Fully intact, real property only.

What's the single biggest tax break in real estate? The step-up in basis at death, and it requires no paperwork at all. Just holding.