How to Downsize Your House Without Your Property Taxes Going Up

At some point the home you’re living in gets bigger than the life happening inside it. Half the bedrooms haven’t been used in years, the upkeep takes more than it used to, and the tax bill keeps climbing. Homeowners arrive at the decision to downsize for all sorts of reasons.

You may be picturing a move somewhere smaller and less expensive. In California, that second part isn’t always true. Proposition 13 means your property tax bill may still be based on what you paid the year you bought your home rather than what it’s worth now, and that low bill doesn’t automatically follow you to the next one. Line the move up wrong and the smaller home costs you more every month. Line it up right and you may be able to take that same bill with you.

We’re Seller’s Advantage, a family-run, licensed Southern California brokerage that buys homes directly. We’ve spent years buying houses across the region, a lot of them from people working through this exact situation. Being licensed means we’re regulated and accountable in ways unlicensed buyers are not, and it means we’ll tell you plainly when listing with an agent, or staying where you are, beats selling to us.

The House Stopped Fitting Your Life: Downsizing Your Home

The house is the same as it always was. What changed is the life being lived inside it.

That change looks different for everyone. A household shrinks, health shifts, work moves, or the cost of keeping the place up quietly outgrows what it’s worth to you. Owning free and clear later in life also isn’t the default it once was. Among homeowners ages 65 to 79, the share still carrying a mortgage climbed from 24 percent in 1989 to 41 percent in 2022, and median mortgage debt for that group rose from $21,000 to $110,000, according to the Harvard Joint Center for Housing Studies in Housing America’s Older Adults.

Then there’s the house itself. Much of Southern California’s housing went up during the postwar decades, when almost nobody was designing around whether a person could still move through the place comfortably in thirty years. The same research found that fewer than 4 percent of homes nationally have all three of the features that make staying put workable: single-floor living, a no-step entry, and wide hallways and doorways.

None of this means you planned badly. It means life changed, and now you need good information about your options.

How to Take Your Old Property Tax Bill and Property Taxes With You

Worth knowing: this is general education, not legal or tax advice. Property tax rules are applied by your county assessor and the numbers depend on your situation, so bring in a CPA before you make a decision.

In 2020 California voters passed Proposition 19, and one piece of it matters enormously if you’re downsizing. It lets certain homeowners take the taxable value of their current home with them to a new one, anywhere in the state, instead of being reassessed at the new home’s purchase price.

You qualify if you’re at least 55, or severely and permanently disabled, or a victim of a wildfire or Governor-declared natural disaster. You need to meet one of those on the day your original home sells. The California State Board of Equalization publishes the full rules.

If you don’t qualify, the property tax transfer isn’t available to you, but the capital gains exclusion covered further down has no age requirement at all, and that’s often the larger number anyway.

What the rule actually allows

You have two years to complete both sides of the move, and the order doesn’t matter. Buy first or sell first, as long as the purchase and the sale fall within two years of each other.

If your new home costs the same or less than the old one sold for, your old taxable value carries over untouched. “Same or less” has a specific meaning here: 100 percent of the original home’s value if you buy before you sell, 105 percent if you buy within a year after the sale, and 110 percent if you buy in the second year. The extra allowance exists because prices move while you’re looking.

You can also buy a more expensive home and keep most of the benefit. Only the difference gets added to your transferred value. Here’s the Board of Equalization’s own example: a home sells for $400,000 with a taxable value of $100,000, and the replacement is bought a few months later for $600,000. Since 105 percent of $400,000 is $420,000, the $180,000 above that gets added to the $100,000, so the new home is taxed on $280,000 rather than $600,000.

And you can do this up to three times, even if you already used a one-time transfer under the older Proposition 60 or 90 rules.

Claiming it is on you

This doesn’t happen automatically through escrow, and nobody files it for you.

Once both transactions have closed and you’re living in the new home, file form BOE-19-B with the assessor in the county where that home is located. You have three years from the purchase to file. Miss that window and you can still qualify, but the benefit starts the year you file rather than the year you moved.

This is a property tax rule, not a rule about who you sell to. It applies the same whether you list with an agent or sell directly. Small differences in timing and how title is held can change the answer, so talk to your county assessor before you commit to either side of the move.

What You’ll Actually Owe in Capital Gains Tax

If you bought in Southern California decades ago, the number on a current listing sheet can be alarming. Most downsizers owe far less than that number suggests, and plenty owe nothing at all.

Two reasons why. The first is that you’re not taxed on the sale price. You’re taxed on the gain, which is the sale price minus your selling costs minus what the home cost you, and “what it cost you” includes the improvements you made along the way. In a typical home sale, those selling costs can easily top $40,000 once commissions, prep, and closing costs are included, and closing costs alone commonly run about 2% to 5% of the home’s price. The new roof, the addition, the re-piping, the replacement heating and air conditioning system all raise your cost and shrink the taxable gain. Those receipts are worth digging out of the filing cabinet before you sit down with a CPA.

The second reason is the exclusion. Federal law lets you exclude up to $250,000 of gain on the sale of your main home, or up to $500,000 if you’re married and filing jointly. You generally need to have owned and lived in the home for at least two of the five years before selling, and you can’t have used the exclusion on another home in the prior two years. The IRS lays out the tests in Publication 523, Selling Your Home and Topic No. 701.

Between those two, a great many downsizing sales land at zero.

If you’ve lost your spouse

Two rules work in your favor here, and one of them has a clock on it.

A surviving spouse can still claim the full $500,000 exclusion rather than $250,000, as long as the home sells within two years of the date of death and the other requirements were met beforehand. That window closes quietly, and nobody sends a reminder.

Separately, because California is a community property state, the cost basis of a jointly held home can reset to its full market value on the date of the first spouse’s death. On a home held for decades, that reset alone often erases most of the gain. How it applies depends on how title was held, so this is a question for a CPA rather than an article.

Where the number can get larger

Long-held homes in strong Southern California neighborhoods do sometimes produce gains above the exclusion. If yours might, three things affect the final figure: gain above the exclusion is taxed at federal long-term capital gains rates, California taxes that same gain as ordinary income, and depreciation claimed during any period the home was rented out gets handled separately.

Knowing your rough number before you list or accept an offer is usually a single meeting with a CPA, and it’s the meeting most people skip.

A Smaller House Isn’t Always a Cheaper One

Fewer square feet doesn’t automatically mean a smaller budget, and downsizing your home can help you save money only if your total housing costs actually go down.

Start with price per square foot. Smaller homes in walkable, well-located Southern California neighborhoods often cost more per foot than the larger house you’re leaving. A 1,200 square foot single-story near shops and a hospital can price higher per foot than a 2,400 square foot home further out, because you’re paying for the location and the convenience, not the space. Smaller square footage can mean lower insurance premiums and lower utility bills, but those savings don’t always outweigh a higher purchase price.

Condos and 55-plus communities add monthly dues on top of the mortgage, and those dues go up over time. In Los Angeles, a smaller condo or townhome may come with higher HOA fees that offset lower monthly payments. Special assessments for a roof, an elevator, or a balcony inspection can land with little warning. Ask for the reserve study, which shows how much the community has set aside for big repairs, and the last two years of board meeting minutes before you commit. A community with a thin reserve fund is telling you what’s coming.

Then there’s the move itself. Packing, transport, storage if there’s a gap between homes, and replacing the furniture that won’t fit in less space all add up faster than most people plan for.

Selling has its own costs. Agent commission is negotiable and set in writing with your agent, and it comes out of your proceeds either way. So do prep work, staging, and whatever the buyer’s inspection turns up.

And if you buy a more expensive home, or you don’t qualify for the Proposition 19 transfer, your property tax bill gets recalculated on the new purchase price. In that case, a sell-my-house-fast cash buyer in Southern California can sometimes help you control timing and costs more than a traditional sale.

None of this makes downsizing a bad idea. It means the comparison worth running is total monthly cost against total monthly cost, not square feet against square feet, because some households cut monthly housing expenses by 30% or more, but that depends on price, dues, taxes, insurance, and utility bills.

Sell First or Buy First?

Buying first means one move, on your own schedule, with no gap to cover. But while downsizing your home often sounds like an easy way to save money and live with less space, buying first can still mean carrying two mortgages, two insurance policies, and two tax bills until the first home sells. There’s a Proposition 19 wrinkle here worth knowing about: if you buy before you sell, you pay property taxes on the new home’s full market value for the months in between, and that money isn’t refunded once the transfer goes through.

Selling first means you shop with a known number in hand, which helps you decide how much house you can afford, and can make an offer that isn’t conditional on your old home selling first, which sellers take more seriously. It also lets you use your home equity more deliberately if the next move depends on sale proceeds, but the cost is finding somewhere to live in the meantime.

What most people actually want is a sale with a closing date they control. Once you’re under contract, the money and documents move through escrow, a neutral third party that holds both until the sale is final, and closing happens on the date the contract sets. If you plan ahead, selling first stops being a race. A traditional buyer can agree to a delayed closing too, though it’s harder to count on when their loan approval is setting the pace, and a smaller place doesn’t always mean lower costs if the price per square foot is higher even though utility bills may drop with less square footage. For some households, a quick cash sale of a California home offers the timing control they actually need.

That same tradeoff shows up if the next place is a condo: the sticker price may look like a more affordable home, but monthly costs can still rise because HOA dues are added to the mortgage. In the end, the better sequence is the one that lets you afford the move without stretching your housing costs too far just to gain less space.

What to Do With Everything Inside the House

The garage is usually where this stalls. Sometimes it’s the attic, or the rooms of furniture nobody in the family wants.

You don’t have to sort it all at once, and trying to is how people give up. Start somewhere that isn’t loaded with memories, like a hall closet or a guest room, and work in short stretches. Deciding what to keep gets harder the longer you go.

Photograph anything you’re keeping only for the memory. The picture holds what you actually wanted, and it fits in the new space.

Give family a real deadline. Telling your kids to come get what they want by the 15th is kinder than an open invitation that leaves boxes in the garage for another year.

You can hand off most of the rest. Estate sale companies will price and run a sale. Donation services will pick up. Move managers will sort, pack, and set up the new home for you, and some work specifically with older adults. They can also help organize household tasks so daily life feels simpler once you’re settled. And if you sell to a buyer who purchases homes as-is, you can leave behind whatever you don’t want by working with a California company that buys houses for cash.

Four Ways to Go From Here

Option 1: Stay. If the mortgage is paid off and your taxable value sits far below what the house is worth, staying may be the strongest financial position available to you. Changes that make the home work better, a ground-floor bathroom, better lighting, a lower-maintenance yard, typically cost a fraction of what moving costs once you add up commission, moving expenses, and a reset property tax bill. Price this option seriously before ruling it out.

Option 2: List with a licensed real estate agent. A traditional sale usually produces the highest gross price when the home shows well and you can manage repairs, staging, and showings. Plan on roughly 90 to 120 days on the market plus another 30 to 60 days in escrow, and expect inspection requests and the buyer’s financing to shape the timeline, especially in the many metro areas where we buy homes. Some owners choose to sell a house without a realtor, but that path means taking on pricing, marketing, and negotiations yourself.

Option 3: Rent it out and move. You keep the asset and collect income, and you become a landlord, which California regulates closely. The state’s Tenant Protection Act caps annual rent increases on covered properties at 5 percent plus the change in the cost of living, or 10 percent total, whichever is lower, and requires just cause to end a tenancy after 12 months. Single-family homes owned by an individual are often exempt, but only when specific written notice appeared in the lease, and many cities and counties layer stricter local rules on top. The California Attorney General maintains a current guide to statewide and local rent increase limits. Renting also puts your Proposition 19 transfer at risk, since the original home generally needs to be your primary residence when it sells, so talk with your county assessor and a landlord-tenant attorney before choosing this route, especially if you might sell California property after moving out of state.

Option 4: Sell as-is to a direct buyer. This fits when the home needs work you don’t want to manage, when the contents feel like too much, when you need a closing date you can count on to line up with a purchase, or when coordinating showings around your life isn’t realistic. You trade some gross price for certainty and simplicity, and a true as-is home sale without inspection renegotiations can matter more than squeezing out every last dollar.

Listing vs. a Cash Sale: What Each One Asks of You

	Traditional listing	Direct cash sale
Gross price	Typically highest when the home shows well	Below market, because the buyer takes on the repairs and the risk
Repairs and prep	Usually needed before listing	Sold as-is
Showings	Open houses and appointments	One walkthrough
Timeline	Roughly 90 to 120 days on market plus 30 to 60 days in escrow	As early as 7 to 14 days, or we can extend the timeline to fit your needs
Commission	Negotiable, paid from your proceeds	We don’t charge a commission
Certainty	Depends on the buyer’s financing and inspections	No contingencies you’d find in a traditional mortgage loan
A cash offer comes in below market. The buyer is absorbing the repairs, the holding costs, and the risk that the work runs longer and costs more than expected, and that risk has a price. For some sellers, a fast, hassle-free cash home sale is worth more than waiting months for a higher offer.

What matters is the number you walk away with. Once you account for repairs, commission, and the months of mortgage payments, property taxes, insurance, and utilities that pile up while a home sits on the market, many sellers find the gap between the two paths is smaller than it looked at the start. Working with an experienced company that buys houses in any condition can make that comparison clearer. Sometimes it’s still wide enough that listing clearly wins. When we run your numbers and that’s what they show, we’ll tell you.

What Selling to Seller’s Advantage Looks Like

If a direct sale fits your plan, here’s the whole process, which follows the same simple six-step cash home buying process we use every day:

1. Initial conversation. You tell us where you’re trying to end up, whether that’s a smaller place nearby, a different part of the state, or out of California entirely. We talk timing, not pressure. If you’re still deciding whether to move at all, that’s a fine place to start from, whether you’re in Los Angeles or elsewhere in Southern California.
2. Home walkthrough. A local team member visits the property, usually within a day or two. Nothing needs to be cleaned out, staged, or repaired first. We buy homes in the condition they’re in.
3. Cash offer. You may receive a no-obligation cash offer within 24 hours of us seeing the home, based on its condition, location, and current Southern California market conditions. You can read through our home buying process before you ever call us.
4. You choose the timeline. If you move forward, you pick the closing date. Closing can happen as early as 7 to 14 days, or we can extend the timeline to fit your needs. We won’t rush you out of your home, and if you need the closing to line up with the purchase of your next place, we’ll work to that date.
5. Cash advance if you need it. Some sellers need money moving before the sale wraps up. We can advance up to $20,000 against what you’re already owed at closing, so movers, deposits, or overlapping bills don’t have to wait. It isn’t a loan or an added fee, just an early portion of money that’s already yours. Movers, a deposit on the next place, and overlapping costs are exactly what people tend to use it for.
6. Escrow and closing. Escrow takes the buyer’s funds, clears whatever you owe first (mortgage, liens, back taxes), then sends the rest your way. You’re not moving any money yourself.

Our team walks you through each step and explains the paperwork in plain language, so nothing arrives as a surprise on closing day. You can meet the people who’d be helping you on our team page, or see us in action in our TV commercials and media spots.

Questions We Get Most

Can I move to a different California county and keep my property tax base? Under Proposition 19, yes, if you qualify. The replacement home can be anywhere in the state. Confirm the details with the assessor in the county you’re moving to, since they’re the ones who process the claim.

Do I have to be 55 to use the Proposition 19 transfer? You qualify at 55 or older, if you’re severely and permanently disabled, or if you’re a victim of a wildfire or Governor-declared natural disaster. You need to meet one of those on the day your original home sells. If none apply, the capital gains exclusion still does, and it has no age requirement.

Will I owe capital gains tax? Many downsizers owe nothing, thanks to the $250,000 and $500,000 exclusions. Owners of higher-value homes held for decades sometimes exceed those limits, especially where home prices and property values have climbed sharply. Either way, it’s worth knowing your number before you list or accept an offer rather than after.

Should I sell before I buy? It depends on whether carrying two homes for a few months is affordable and how competitive the market is where you’re headed. Selling first gives you a stronger offer and a known number, and the proceeds can help fund a more affordable home, other financial goals, or even help you stay mortgage free. Buying first gives you a single move.

Do I have to clean out the house? Not for an as-is sale. Take what you want and leave the rest. For a traditional listing, cleaning and decluttering do help the price.

How fast can this close? As early as 7 to 14 days, or we can extend the timeline to fit your needs. Most people we work with pick a date further out so it lines up with their next home, preferred lifestyle, or a move closer to children.

What if we go through all this and decide to stay? Then you stay, and you’ve made that call with real numbers instead of guesswork. No obligation means no obligation. If staying put lets you better maintain the home, work with real estate agents you trust, and still enjoy life, that can be the right answer too.

You Don’t Have to Decide This Month

Downsizing is a housing decision, a tax decision, and a family decision at the same time, and you’re allowed to take it one piece at a time.

Start with the two numbers that shape everything else: what your home would realistically sell for today, and what your property tax bill would look like in the next place. If you’re local, that might mean getting a sense of what a fast Los Angeles cash buyer would pay alongside what you’d expect from a traditional listing.

We’ll be honest about which path makes the most sense for you, even when that means listing with an agent or staying where you are. If you’d like to talk it through, or you just want a no-obligation offer so your family has a real number to work from, we’re here.

Talk with our local team about your downsizing plans →