What Is Home Equity?
Home equity is the portion of your home's value that you own outright — the difference between what your home is currently worth and what you still owe on your mortgage. If your home is worth $450,000 and your mortgage balance is $280,000, your equity is $170,000. Equity is one of the most significant components of net worth for most American homeowners, and it grows in two ways: through mortgage paydown and through appreciation in home value.
How Equity Builds Over Time
Equity accumulates from two sources simultaneously:
- Principal paydown: Each mortgage payment includes a portion that reduces your loan balance. Early in a standard mortgage, most of the payment goes toward interest and very little toward principal. As the loan matures, the ratio shifts. After 10 years of a 30-year mortgage at 6.75%, you have paid down roughly 10–15% of the original loan amount.
- Appreciation: As your home's market value rises, equity increases dollar for dollar. U.S. home prices have appreciated at roughly 3–5% annually on average over long periods, though with significant regional and cyclical variation. A home bought for $320,000 that appreciates to $450,000 gains $130,000 in equity from appreciation alone, regardless of mortgage payments.
Loan-to-Value (LTV) Ratio
LTV is your mortgage balance divided by the home's current value, expressed as a percentage. It is the most important metric lenders use to assess mortgage risk. Key LTV thresholds:
- Below 80% LTV (20%+ equity): No private mortgage insurance (PMI) required on conventional loans. Best rates available. Eligible for most home equity loan and HELOC products.
- 80–95% LTV: PMI required on most conventional loans, adding 0.5–1.5% of the loan amount annually to your cost.
- Above 95% LTV: Limited conventional loan options. FHA loans available with 3.5% down but require mortgage insurance premium (MIP) for the life of the loan in most cases.
Using Home Equity: HELOCs and Home Equity Loans
Accumulated equity can be accessed through two main products:
- Home Equity Line of Credit (HELOC): A revolving credit line secured by your home, typically up to 85% of home value minus your mortgage balance. Variable interest rate. Flexible draw period (often 10 years) followed by a repayment period. Best for ongoing expenses or projects with uncertain total cost.
- Home Equity Loan: A lump-sum second mortgage at a fixed rate, also up to 80–85% of value minus balance. Predictable payments. Best for one-time expenses like a major renovation with a known cost.
Both products use your home as collateral — failure to repay can result in foreclosure. Interest on home equity debt used for home improvement is generally tax-deductible; interest on debt used for personal expenses is not.
Building Equity Faster
Strategies to accelerate equity growth include: making one extra mortgage payment per year (which can shorten a 30-year loan by 4–6 years); applying windfalls like tax refunds or bonuses to principal; refinancing to a shorter term when rates are favorable; and making home improvements that add more value than they cost. Consult a real estate professional about which renovations generate the highest return in your market before investing.