A home equity line of credit (HELOC) is a revolving credit line secured by your home that lets you borrow against the equity you have built up. Unlike a lump-sum home equity loan, a HELOC works like a credit card: you draw what you need during a set period (typically 10 years), pay interest only on what you borrow, and can reuse the credit as you pay it down. Most HELOCs carry variable interest rates that adjust with market conditions, and lenders typically allow you to borrow up to 80 to 85 percent of your home’s value minus what you still owe on your first mortgage.

How a HELOC Works

A HELOC operates in two distinct phases. During the draw period (usually 10 years), you can borrow up to your credit limit, repay, and borrow again. Most lenders require interest-only payments during this phase, though you can pay down principal if you choose. After the draw period ends, the repayment period begins (typically 10 to 20 years), during which you can no longer draw funds and must repay the outstanding balance with principal and interest.

According to the Consumer Financial Protection Bureau, lenders determine your credit limit based on your combined loan-to-value ratio (CLTV), which factors in both your first mortgage and the HELOC. Most lenders cap CLTV at 80 to 85 percent, meaning if your home is worth $400,000 and you owe $240,000 on your first mortgage, you might qualify for a HELOC of up to $80,000 (assuming an 80 percent CLTV limit).

Rates and Costs

HELOC interest rates are almost always variable, tied to a benchmark such as the prime rate published by the Federal Reserve. Your actual rate equals the index plus a margin set by the lender (for example, prime plus 1.5 percentage points). As of July 2026, rates change daily, so verify current terms with a licensed lender before deciding. Many HELOCs offer an introductory fixed-rate period or the option to lock portions of your balance into a fixed rate later.

Upfront costs vary widely. Some lenders charge origination fees, appraisal fees, and closing costs similar to a first mortgage, while others waive these fees in exchange for keeping the line open for a minimum period (typically three to five years). Early closure within that window may trigger repayment of waived fees. Annual fees and inactivity fees are also common, so compare the total cost structure across lenders.

Read also: HELOC vs. Cash-Out Refinance in the US: Which Fits a High-Rate Environment?

When to Consider a HELOC

A HELOC makes sense when you need flexible access to funds over time rather than a single lump sum. Common uses include home renovations (where costs span multiple phases), education expenses, debt consolidation, or an emergency reserve. Because the interest rate is variable, a HELOC carries more risk than a fixed-rate home equity loan if rates rise sharply. It is not appropriate for borrowers who want payment certainty or who struggle with the discipline to avoid overspending on a revolving credit line.

Eligibility depends on your credit score (most lenders require 620 or higher, with better rates above 700), debt-to-income ratio (typically 43 percent or lower), and sufficient equity. Lenders verify income and employment and may reassess your credit line periodically, reducing or freezing it if your financial situation or home value deteriorates.

Next Steps

If a HELOC fits your needs, compare offers from at least three lenders, including your current mortgage servicer, local credit unions, and online lenders. Review the margin above the index, upfront and ongoing fees, draw and repayment terms, and whether the lender offers rate-lock options. Confirm current rates and terms with a licensed lender for your personal situation, as loan eligibility, limits, and availability vary by program, lender, and location.

This information is educational and general in nature, not personalized financial or lending advice. Consult a licensed loan officer or HUD-approved housing counselor to evaluate whether a HELOC is the right choice for your circumstances.