How to Calculate Your Home Equity (and How Much You Can Borrow)

Equity is the portion of your home you actually own. It grows as you pay down your mortgage and as your home's value rises. Knowing your equity helps you decide whether you can remove PMI, refinance, or borrow for a project.

Step 1: estimate your home's value

• Online estimates from real estate websites give a rough starting point but can miss your home's condition and upgrades.
• Comparable sales: look at similar homes nearby that sold in the last three to six months.
• A real estate agent's comparative market analysis is often more accurate and usually free.
• An appraisal is what lenders rely on when you borrow.

Step 2: add up what you owe

Include your first mortgage balance, any home equity loan or HELOC balance, and any other liens. Use your payoff amounts from recent statements.

Step 3: calculate equity and LTV

Step 4: figure out how much you can borrow

Lenders typically allow combined borrowing up to a maximum CLTV. Here's the formula:

Maximum borrowing = (home value × max CLTV) − current loan balances

Max CLTV	Calculation	Available to borrow
80%	$400,000 × 0.80 − $240,000	$80,000
85%	$400,000 × 0.85 − $240,000	$100,000
90%	$400,000 × 0.90 − $240,000	$120,000

Your credit score, income and debt-to-income ratio determine whether you qualify for the full amount.

Limits by borrowing method

Option	Common maximum
Conventional cash-out refinance	80% LTV on a one-unit primary residence
FHA cash-out refinance	80% LTV
VA cash-out refinance	Up to 90%, and some lenders allow 100%
HELOC or home equity loan	80%–90% CLTV, depending on lender

Ways to build equity faster

• Make extra principal payments. See paying off your mortgage early.
• Choose a shorter loan term when refinancing.
• Invest in improvements that add value, like kitchens, bathrooms and energy efficiency.
• Maintain the home; deferred maintenance lowers appraisals.

Using your equity wisely

Borrowing against your home turns equity into debt secured by the house. It can be a smart way to fund improvements or consolidate high-interest debt, but it reduces your cushion if values fall. Compare options in home equity loan vs. HELOC and cash-out refinance vs. HELOC.

Equity scenarios: how appreciation and paydown work together

Equity grows in two ways: by paying down principal and through home price changes. Here's how both play out on a $350,000 home bought with 5% down and a 6.5% 30-year loan:

After	Loan balance (approx.)	Equity if value is flat	Equity with 3% yearly appreciation
1 year	$329,000	$21,000	$32,000
3 years	$321,000	$29,000	$62,000
5 years	$311,000	$39,000	$94,000

Early in a loan, most of each payment goes to interest, so principal paydown is slow. Appreciation often does most of the work in the first several years, which is also why equity can shrink quickly if local prices fall. Keep this in mind before borrowing against equity soon after buying.

Getting a reliable value before you apply

Before paying for an appraisal or applying for a HELOC, ask a local agent for a comparative market analysis or check recent comparable sales yourself. If several similar homes on your street have sold recently, you can estimate value with reasonable confidence. If not, expect more uncertainty, and don't count on the high end of an online estimate when planning how much to borrow.

Equity and your financial plan

Home equity is often a household's largest asset, but it's also illiquid. Financial planners commonly suggest treating it as long-term wealth rather than spending money. Before tapping equity, compare the cost of borrowing with other options, keep a healthy equity cushion of at least 20% for flexibility, and make sure the purpose of the loan fits your long-term goals. For many homeowners, the most valuable use of equity is the security it provides: the ability to sell, refinance or borrow in an emergency.