Should You Sell or Rent Your House? Using Your Home’s Equity to Buy Your Next Property

If you have a low-rate mortgage and are needing to move, selling is not your only option. Some San Diego homeowners are choosing a third path: keep the house, rent it out, borrow against its equity, and use that cash to buy the next property.

The idea has gotten more appealing as rates have climbed. The 30-year fixed rate was 7.28% on October 1, so giving up a 3% loan is expensive, while the rental demand is increasing in San Diego. Renting out your home instead of selling it means you keep the low rate, keep your equity growing, and let a tenant cover partial or the entirety of your mortgage and expenses.

It is not a free lunch. This guide explains how the strategy works, what it costs at today’s rates, and the legal, tax and financing issues to settle before you try it.

The strategy in four steps

The strategy turns your current home from your residence into an income-producing asset while its equity funds your next purchase.

Borrow against your equity first. Open a home equity line of credit (HELOC) or take a home equity loan while you still live in the home, because lenders generally offer better terms on owner-occupied property than on rentals.
Use the cash as your down payment. The borrowed funds go toward the new property, so you do not have to sell the old one to unlock your equity.
Move out and rent the old home. The tenant’s rent helps cover the existing mortgage, the equity loan, taxes, insurance and upkeep.
Keep your original mortgage untouched. Your 3% loan stays in place, which is the whole point of the plan.

Why this option is on the table now

Three conditions line up in San Diego this fall, and each one pushes owners to think twice before selling.

Replacing your rate is costly. The 30-year fixed rate averaged 6.67% in mid-August, then 7.28% on October 1, and early reports showed it near 7.4% the following week. More than half of outstanding U.S. mortgages still carry a rate below 4%.
Rents are strong. Trulia’s average asking rent for a single family home in San Diego ran between $4,500 and $4,900 a month in the first half of 2026, compared with about $4,300 in March 2025.
Equity is high and supply is tight. The county’s average sale price reached $1,463,273 while active listings are down 10% from last year, which supports the value in keeping your home.

None of this guarantees a profiting cash flow, but it explains why “keep and rent” is worth running the numbers on.

How to pull equity out without losing your low rate

Do not use a cash-out refinance on a 3% mortgage. It replaces your current loan with a new one at today’s rates, so you lose the very thing you are trying to protect. A second loan on top of your existing mortgage leaves the 3% loan alone and charges today’s rate only on the money you borrow.

HELOC: Variable-rate credit line you draw on as needed, usually interest-only at first
Home Equity Loan: Fixed-rate lump sum with a set repayment schedule
Cash-out Refinance: Replaces your mortgage with a larger new one

A few practical points. Lenders often limit your combined loans to about 80% to 85% of the home’s value, so your available equity is smaller than the full amount. A HELOC’s rate can rise, which changes your payment, while a home equity loan stays fixed. Rates quoted here are national averages, and your offer will depend on credit, equity and the lender, so get several quotes before moving forward.

Rental income: what to expect in San Diego

Strong rents help, but at today’s borrowing costs they usually will not cover every expense on their own. Trulia’s average asking rent for a San Diego single family home was about $4,800 in June 2026, not considering neighborhood or size. A local rent analysis from your agent is more useful than any average.

When you estimate cash flow, count every cost, not just the mortgage:

Your existing mortgage payment
Interest on the HELOC or home equity loan
Property taxes and landlord insurance (a standard homeowner policy often does not cover a rental)
Property management, commonly a percentage of rent, plus a repair reserve
Vacancy between tenants

The real payoff of this strategy is usually long-term: keeping an appreciating asset and a low-rate loan, rather than monthly profit. Treat any positive cash flow as a bonus.

Worked example: sell vs. keep and rent

Keeping the home costs about $2,000 more per month in this example, in exchange for holding on to a $1 million house and a 3% loan. The figures are illustrative and rounded, and the assumptions are below the table.

Monthly Figures	Sell and Buy	Keep, Rent, Buy
Cash toward next home	About $540,000	$300,000 HELOC draw
Next home price	$1,200,000	$1,200,000
New mortgage	$660,000	$900,000
New mortgage payment	About $4,520	About $6,160
Old home: existing mortgage plus HELOC interest	None	$1,900 + $1,770
Old home: taxes, insurance, management, repairs	None	About $1,470
Old home: rent collected	None	$4,800
Old home: net cash flow	None	About -$340
Total Monthly cost	About $4,520	About $6,500
Equity across all properties	About $540,000	About $600,000

Assumptions: current home worth $1,000,000 with $400,000 left at about 3%; new loan at 7.3% for 30 years; $300,000 HELOC at 7.084%, interest-only; selling costs of about 6%; rent of $4,800; old-home property tax of about $550 a month on a low assessed value; insurance of $200 a month; management, vacancy and repairs at 15% of rent.

The roughly $60,000 equity difference is the selling cost you avoid by keeping the home. Not to mention, keeping your home prevents you from paying capital gains tax, as well as saves on transaction expenses like Realtor fees and closing costs. Over time, your 3% loan also pays down principal, and each 2% of appreciation on a $1 million home is about $20,000 a year, though appreciation is never guaranteed.

Before you commit, stress-test the plan. If the HELOC rate rises by one point, your payment goes up about $250 a month. One month of vacancy costs $4,800. A major repair can erase months of rent.

Where assumable loans fit into the decision

An assumable loan lets a qualified buyer take over an existing mortgage, including its rate, balance and remaining term, instead of getting a new one. FHA, VA and USDA loans are generally assumable with the servicer’s approval, while most conventional loans are not because of due-on-sale clauses. So this option only applies if you have one of those government-backed loans. Not every loan advertised as assumable truly is, so get written confirmation from the servicer.

An assumable loan changes the sell-or-keep analysis in three ways:

If you sell, your low rate becomes something you can offer. With the 30-year rate at 7.32%, a buyer who can take over a 3% loan may value that rate highly, which can help your home stand out or support your price. No formula says how much, so test the idea with your agent before you count on it.
If you keep and rent, it gives you a later exit. Because the loan stays in place, you can sell down the road to a buyer who assumes it, instead of the rate disappearing in a sale.
If you are buying, it can lower the cost of your next home. The next section shows how.

The catch is the equity gap. The buyer must pay the difference between the price and the loan balance, using cash, a second loan or seller financing. In the earlier example, a $1,000,000 home with a $400,000 balance leaves a $600,000 gap, which is why assumptions suit buyers with substantial cash. For a buyer who can cover it, the savings are real: assuming a $400,000 balance at 3% with about 25 years left costs roughly $1,900 a month, versus about $2,750 for a new 30-year loan at 7.32%, or around $850 a month less.

What to know:	Details:
Eligible loans	FHA, VA and USDA. Most conventional loans are not assumable.
Buyer approval	The buyer must be approved by the servicer, with a review of credit, income and occupancy.
Equity Gap	The buyer covers price minus loan balance with cash, a second mortgage, seller financing or documented gift funds.
Timeline	Often 30 to 60 days, and some VA assumptions run 45 to 120 days depending on the servicer’s backlog.
Fees	Servicer processing, credit and title fees, plus a 0.5% funding fee on VA assumptions.
VA seller risk	Unless a veteran buyer substitutes their own entitlement, your VA entitlement can stay tied to the loan. Ask the servicer for a written release of liability.

Buying your next home with an assumable loan

The equity you borrow against your current home can also fill the equity gap on a home with an assumable loan, which pairs the two strategies. Here is a separate, illustrative scenario with rounded numbers:

Next home with an assumed VA loan	Figure
Price	$950,000
Assumed loan	$650,000 at 3% about 25 years left
Equity gap	$300,000, funded by the HELOC draw on your current home
Payment on the assumed loan	About $3,080
Payment on the new $650,000 loan at 7.32%	About $4,470
Monthly Difference	About $1,390
HELOC interest on $300,000 at 7.084%	About $1,770 in either case

The assumption saves about $1,390 a month, or roughly $16,700 a year, compared with a new loan on the same home. You would still carry the HELOC interest and the costs of the home you rent out, so run the full cash flow before you commit.

A few cautions before you build a plan around this:

Inventory is limited. Only a fraction of homes have an assumable loan, so you may need flexibility on location, size and timing. Ask your agent to search for assumable listings and to confirm assumability with the servicer in writing before you write an offer.
Closings are slower. Plan for a longer escrow than the standard 30 days, and expect sellers to weigh that against faster offers.
Approval is not automatic. The servicer must approve you, and your debt-to-income ratio will include the payments on your rental home.
You do not need to be a veteran to assume a VA loan in most cases, but if you are not, the seller’s entitlement stays tied to the loan, which some sellers will want to discuss.
Compare the alternatives. A new loan with seller credits, points or a temporary buydown can sometimes close part of the gap, so price both routes.

Risks and rules to settle before you start

The strategy works only if the legal, tax and lending details hold up, so check each of these with the right professional.

California tenant law. The statewide Tenant Protection Act (AB 1482) caps annual rent increases at 5% plus inflation, up to 10%, and requires “just cause” to end a tenancy after 12 months. A single-family home or condo owned by an individual is generally exempt, but only if the lease includes the required written exemption notice. Some cities have their own rules that can go further, so confirm the rules for your property’s jurisdiction.
Taxes. Rental income is taxable, and you can generally deduct expenses and depreciation, which has to be accounted for if you sell down the line. The federal home-sale exclusion generally requires that you lived in the home for two of the five years before the sale, which means the clock matters if you plan to sell it later. Ask a CPA to model this.
Property taxes. One real advantage: keeping the home keeps its low assessed value, instead of a reassessment at a new purchase price.
Insurance. Switch to a landlord or dwelling policy that covers a rental, and consider adding liability coverage.
Financing the next home. Take the HELOC before you convert the home to a rental. When you apply for the new mortgage, lenders often count only part of the expected rent, usually with a signed lease, and they will include the old home’s payments in your debt-to-income ratio.
Your existing mortgage. Read your loan terms on occupancy. Most owner-occupied loans require you to live in the home for a period after closing, which is rarely an issue for long-time owners.
Being a landlord. Screening tenants, handling repairs and following notice rules take time. A professional property manager is worth pricing out.

Who this strategy fits, and who should sell instead

Keeping and renting suits owners with strong finances and a long time horizon, and is a poor fit for anyone stretching to make it work.

It may work if you:

Have a low-rate mortgage and substantial equity, with room to borrow against it
Can afford both properties’ payments even with a vacancy or a rate increase
Plan to hold the home for several years and believe in its long-term value
Are comfortable being a landlord or hiring a manager

Selling may be better if you:

Would need the rent to cover the payments
Own a condo or townhome with limited price growth or high HOA dues
Want to simplify, downsize or avoid landlord responsibilities
Need the full sale proceeds for the next home

Frequently asked questions

Should I rent out my house instead of selling it in San Diego?

It can make sense if you have a low mortgage rate, ample equity and the financial cushion to carry both properties. Rents are strong, but at today’s rates the rent may not cover every cost, so run a full cash-flow estimate first.

Can I use a HELOC to buy another house in California?

Yes, many buyers use a HELOC on their current home as a down payment. Lenders cap how much you can borrow against the home, and the rate is variable, so plan for payments that could rise.

Why not just do a cash-out refinance?

A cash-out refinance replaces your existing mortgage, so you would lose your low rate and pay today’s rate on the entire balance. A HELOC or home equity loan charges today’s rate only on the new borrowing.

Will I owe capital gains tax if I rent the house and sell it later?

Possibly. Many owners can exclude a large part of the gain on a primary residence if they lived in it for two of the five years before the sale, and renting it out can shorten that window. Depreciation taken during the rental period may also be taxed. Talk to a CPA.

Can I raise rent whenever I want?

Not always. Covered properties under AB 1482 face an annual cap, and many individually owned single-family homes are exempt only if the lease includes the proper notice. Local rules may add more limits.

Not sure whether to sell or keep? Compare both side by side

LH Real Estate Group can estimate what your home would sell for, what it could rent for, and how each path would affect your monthly costs and equity. Request your free home valuation and rental analysis by reaching out to us today.

This article is general information, not tax, legal, lending or financial advice. Rates and market figures change often and reflect the most recent data available as of October 2026. Consult a CPA, attorney and lender before acting.