Home equity is the portion of your home’s value that you actually own. It’s the difference between what your home is worth and what you still owe on your mortgage.

If your home is worth $350,000 and you owe $200,000, your equity is $150,000. That’s your ownership stake in the house — the part you truly own rather than the lender.

How Home Equity Builds

Equity grows two ways: you pay down the mortgage, or the home increases in value, or both.

Paying down the mortgage: Every mortgage payment has two parts, interest and principal. Only the principal portion reduces what you owe. In the early years of a mortgage, most of each payment goes toward interest, so equity builds slowly at first. Over time the balance shifts and you pay down principal faster, this is called amortization.

Home appreciation: If the market value of your home rises, your equity rises with it, even if you haven’t paid off any additional debt. A home worth $300,000 that appreciates to $330,000 added $30,000 in equity without you doing anything. The reverse is also true: if values fall, equity shrinks.

Making extra principal payments: Paying extra toward principal each month accelerates equity building. Even a modest extra amount each month can meaningfully shorten the loan and build equity faster.

Making a larger down payment: Equity starts the day you close. A 20% down payment on a $400,000 home means you start with $80,000 in equity before the first monthly payment. A 3% down payment starts you at $12,000.

How to Calculate Your Equity

Home equity = current market value − outstanding mortgage balance

Market value is an estimate, not a guaranteed number. Common ways to get it:

  • Online estimates: Tools like Zillow or Redfin give a rough figure. They can be off by 5 to 10% depending on your market and data quality.
  • Comparable sales (comps): Look at what similar nearby homes sold for recently.
  • Formal appraisal: If you’re refinancing or applying for a home equity product, a lender will order an official appraisal. It’s the most accurate method but costs $300 to $700.

Ways to Access Home Equity

Equity is an asset, but it’s not liquid. To turn it into cash, you generally need to borrow against it or sell the home.

HELOC (Home Equity Line of Credit): A revolving credit line secured by your home. You borrow what you need, when you need it, up to a set limit. Interest rates are typically variable. See What Is a HELOC? for a full explanation.

Home equity loan: A lump-sum loan secured by your home. You receive the money all at once and repay it in fixed monthly payments at a fixed rate. Sometimes called a second mortgage.

Cash-out refinance: You replace your existing mortgage with a new, larger one and receive the difference in cash. This restarts your loan term and changes your interest rate, so the total cost needs to be calculated carefully.

Selling the home: The most complete way to access equity. After paying off the mortgage, real estate commissions, and closing costs, the remainder is yours.

Loan-to-Value Ratio

Lenders care about your loan-to-value (LTV) ratio, how much you owe compared to the home’s value.

LTV = (mortgage balance ÷ home value) × 100

If you owe $200,000 on a $350,000 home, your LTV is 57%. Most lenders will let you borrow against equity up to a combined LTV of 80 to 90%, meaning you generally can’t borrow all of your equity, lenders want a cushion.

Equity Is Not Guaranteed

A few things can reduce equity:

  • Home values fall in a down market
  • Taking on a home equity loan or cash-out refinance increases your debt
  • Deferred maintenance reduces what buyers will pay
  • Local market conditions (job losses, oversupply) can affect values independently of broader trends

Equity is a meaningful asset, but it’s tied to a single illiquid investment in one location. Unlike stocks, it is hard to diversify.

Tax Implications of Accessing Equity

Interest on home equity loans and HELOCs may be tax-deductible, but only in certain circumstances. The Tax Cuts and Jobs Act of 2017 limited the deduction: interest is deductible only when the borrowed funds are used to buy, build, or substantially improve the home securing the debt. Using equity to pay off credit cards, take a vacation, or cover other expenses doesn’t qualify.

Consult a tax professional before assuming your home equity interest is deductible. IRS Publication 936 covers home mortgage interest rules in detail.

When you sell your home, the equity becomes real cash, but not all of it may be tax-free. The IRS allows you to exclude up to $250,000 in capital gains ($500,000 for married couples filing jointly) from the sale of your primary residence if you’ve owned and lived in it for at least two of the five years before the sale. Gains above those thresholds are taxable.

How to Build Equity Faster

Equity builds naturally through mortgage payments and appreciation, but there are ways to accelerate it:

Make biweekly payments. Paying half your monthly mortgage payment every two weeks results in 26 half-payments per year, the equivalent of 13 full payments instead of 12. Over a 30-year mortgage, this can shave several years off the loan and save tens of thousands in interest.

Make extra principal payments. Any amount paid directly toward principal reduces the balance and the future interest calculated on it. Even an extra $100 per month compounds meaningfully over a decade. When making extra payments, confirm with your lender that the additional amount is being applied to principal, not to future payments.

Choose a 15-year mortgage. Monthly payments are higher, but principal is paid down much faster, and interest rates are typically lower than 30-year loans. The forced savings in equity can be significant.

Avoid cash-out refinancing when rates rise. A cash-out refinance gives you cash but resets your mortgage balance higher and may replace a low rate with a higher one. The equity you spent may be expensive to rebuild.

Make value-adding improvements. Kitchen and bathroom renovations, adding living space, or improving energy efficiency can increase your home’s appraised value, increasing the equity side of the equation without paying down more debt.

Risks of Over-Leveraging Your Home

Tapping equity aggressively carries real risk:

  • Negative equity. If home values fall after you borrow against equity, you can end up owing more than the home is worth, making it difficult to sell, refinance, or weather financial hardship.
  • Foreclosure risk. A HELOC or home equity loan is secured by your home. Defaulting on it can lead to foreclosure, even if you keep up with your primary mortgage.
  • Liquidity trap. Your equity is locked in an illiquid asset. In a financial emergency, you can’t quickly sell 10% of your house. HELOCs can also be frozen by lenders if home values drop.
  • Concentration. Most homeowners already have their largest single asset tied up in one property in one location. Borrowing heavily against it increases the risk if local conditions change.

Equity is a useful tool when directed toward genuine value-adding purposes. It becomes a liability when used as a substitute for savings.

Frequently Asked Questions

Q: What is equity in a house?

Equity in a house is the portion of the home’s value you actually own — the current market value minus the remaining mortgage balance. If your home is worth $350,000 and you owe $200,000, you have $150,000 in equity. It grows as you pay down the mortgage and as the home’s value rises.

Q: What does home equity mean?

Home equity means the financial stake you have in your property — what you’d receive if you sold the home and paid off everything owed on it. Lenders use it to determine how much you can borrow against the property through products like a HELOC or home equity loan.

Q: Is home equity the same as a home’s value?

No. Your home’s value is what it would sell for today. Equity is the portion of that value you own, value minus what you owe. If you own the home outright with no mortgage, equity equals the full value.

Q: Can I access equity before I pay off the mortgage?

Yes. HELOCs, home equity loans, and cash-out refinances all let you borrow against equity while a primary mortgage is still in place. Lenders require you to maintain a minimum equity cushion, typically at least 10 to 20%.

Q: Does equity affect my property taxes?

No. Property taxes are based on the assessed value of the property as determined by your local government, not on your equity stake.

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Note: This guide is for general education, not individualized financial, legal, tax, insurance, investment, or career advice. Read our editorial standards.
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