What Is Home Equity?

Quick Answers

Equity formula

Value minus balance

HELOC max LTV

85-90%

Equity builds via

Payments + appreciation

Time to 20% equity

Varies by market

Home equity is the portion of your home's value that you actually own -- the difference between your home's current market value and what you still owe on your mortgage.

Home equity is the stake you have in your property. When you first purchase a home with a 10% down payment, you start with 10% equity. As you pay down your mortgage over time -- and as your home appreciates in value -- your equity grows. Equity is a form of wealth that can be borrowed against or converted to cash when you sell.

Homeowners can access their equity through a home equity loan (a lump-sum loan at a fixed rate), a HELOC (a revolving line of credit), or a cash-out refinance (replacing your mortgage with a larger one and pocketing the difference). Each option has different costs, terms, and use cases.

Key Facts About Home Equity

Formula: Equity = Current Home Value Outstanding Mortgage Balance
How equity grows: Paying down principal, making extra payments, home value appreciation, and home improvements.
LTV ratio: Lenders use loan-to-value ratio (mortgage balance -- home value) to determine how much equity you can borrow. Most lenders require at least 1520% equity remaining after borrowing.
Tax implications: Interest on home equity loans may be tax-deductible if used for home improvements (consult a tax professional).
Risk: Borrowing against equity puts your home at risk if you can't repay -- your home is the collateral.

How to Calculate Your Equity

equity = Home Value - Mortgage Balance

Example: $425,000 value - $280,000 balance = $145,000 equity (34.1%)

Having $145,000 in equity doesn't mean you can borrow all of it. Lenders cap how much combined debt they'll allow against the home -- typically 85% combined loan-to-value (CLTV). On this same home, 85% of $425,000 is $361,250; subtract the existing $280,000 balance and the actual maximum HELOC or home equity loan available is closer to $81,250, not the full $145,000 of equity on paper.

Common Equity Mistakes

Assuming all your equity is borrowable: As the example above shows, lenders leave a cushion -- usually 15-20% of the home's value -- so your maximum HELOC or home equity loan is smaller than your total equity.
Treating equity like free cash: Borrowing against equity still creates a debt secured by your home. Using it for a depreciating purchase (a vacation, a car) means paying it back with interest on an asset that's already lost value, and your home remains the collateral if you can't repay.

Frequently Asked Questions

How much equity do I need to get a HELOC?+

Most lenders require at least 1520% equity remaining in the home after the HELOC is factored in. Your combined loan-to-value (CLTV) ratio -- mortgage plus HELOC divided by home value -- typically must stay under 8085%.

Does paying extra on my mortgage build equity faster?+

Yes. Extra principal payments directly reduce your mortgage balance, which increases your equity dollar-for-dollar. Even one extra payment per year can shave years off a 30-year mortgage.

Can I lose equity in my home?+

Yes -- if home values drop significantly (as in the 2008 housing crisis), your equity can shrink or even turn negative (being "underwater"). This is why maintaining a reasonable loan-to-value ratio is important.

Is home equity the same as a home's net worth?+

Not exactly. Net worth considers all assets and liabilities. Home equity is just one component -- the ownership stake in your property.

What's the best way to use home equity?+

Common uses include home improvements (which may increase home value), debt consolidation (replacing high-interest debt with lower-rate equity debt), education, or emergencies. Using equity for non-appreciating purchases (vacations, cars) is generally discouraged.