How much can I borrow with a HELOC?

Most lenders allow you to borrow up to 85% of your home's appraised value minus your existing mortgage balance, a metric known as the Combined Loan-to-Value (CLTV) ratio. For example, a homeowner with a $400,000 property and a $250,000 mortgage could qualify for a HELOC up to $90,000. Some lenders offer higher CLTV limits of 90% for borrowers with excellent credit (FICO 760+), but these products typically carry higher interest rates. Your actual approved amount also depends on your credit score, income, and debt-to-income ratio, which most lenders cap at 43%.

What is the difference between a HELOC and a home equity loan?

A HELOC is a revolving line of credit with a variable interest rate, allowing you to draw and repay funds repeatedly during the draw period. A home equity loan provides a one-time lump sum at a fixed interest rate with fixed monthly payments from day one. HELOCs offer more flexibility and lower upfront costs, making them better for ongoing or unpredictable expenses. Home equity loans are better when you know the exact amount needed and prefer payment predictability. According to the CFPB, approximately 60% of homeowners tapping equity in 2025 chose HELOCs over lump-sum loans.

Are HELOC interest payments tax deductible?

HELOC interest is tax deductible only if the borrowed funds are used to buy, build, or substantially improve the home securing the loan. Under the Tax Cuts and Jobs Act of 2017 (still in effect through 2025), interest on home equity debt used for other purposes such as paying off credit cards or funding vacations is not deductible. The combined mortgage and HELOC debt limit for the deduction is $750,000 for married filing jointly ($375,000 for single filers). Always consult a tax professional, as rules may change with future legislation. Use our income tax calculator to estimate your federal tax liability.

What happens when the HELOC draw period ends?

When the draw period ends, you enter the repayment period and can no longer borrow additional funds. Your payments shift from interest-only to fully amortizing, covering both principal and interest over the remaining term (typically 10-20 years). This transition often causes a significant payment increase. For example, a $50,000 balance at 8.5% jumps from about $354/month (interest-only) to approximately $434/month (20-year amortization). Some lenders allow you to refinance into a new HELOC or convert the balance to a fixed-rate loan to manage this payment shock.

How does the prime rate affect my HELOC payment?

Most HELOC rates are calculated as the prime rate plus a fixed margin. When the Federal Reserve raises or lowers the federal funds rate, the prime rate moves in lockstep, and your HELOC rate adjusts accordingly. For every 0.25% change in the prime rate, a $50,000 HELOC balance sees a monthly payment change of about $10.42 on interest-only payments. With the prime rate at 8.5% in early 2026, a borrower with a prime + 1% margin pays 9.5% APR. Some HELOCs include rate floors (minimum rates) and lifetime caps (maximum rates) that limit how much your rate can change.

Can I pay off my HELOC early without penalties?

Most HELOCs do not carry prepayment penalties, allowing you to pay down or pay off the balance at any time without extra fees. However, some lenders impose an early termination fee (typically $300-$500) if you close the HELOC within the first 2-3 years. Always review the loan agreement for early closure clauses. Paying extra toward principal during the draw period reduces your outstanding balance and lowers future interest costs, which is one of the key advantages of a HELOC over a fixed-term home equity loan.

HELOC Calculator

Calculate your available home equity line of credit, monthly payments, and total interest costs.

Quick Answer

A HELOC (Home Equity Line of Credit) is a revolving line of credit secured by your home. Maximum credit line = (home value x max combined loan-to-value) - current mortgage balance. Most US lenders cap the combined loan-to-value at 80-85%, per Consumer Financial Protection Bureau guidance.

Also searched as: heloc, heloc calculator, home equity line of credit calculator

Home Value ($)

Current Mortgage Balance ($)

HELOC Interest Rate (% p.a.)

Draw Amount ($)

Amount you plan to borrow from the credit line

Available Credit Line

Interest-Only Payment $0/mo Amortizing Payment (10yr) $0/mo Total Interest (Interest-Only, 10yr) $0 Total Interest (Amortizing, 10yr) $0

Home Equity $0 85% of Home Value $0 Draw vs Available --

How a HELOC Works

A Home Equity Line of Credit (HELOC) is a revolving credit facility secured by the borrower's home equity, functioning similarly to a credit card but at significantly lower interest rates. According to the Federal Reserve, outstanding HELOC balances in the United States totaled approximately $360 billion as of late 2025, reflecting renewed homeowner interest as equity levels reached record highs. Unlike a traditional mortgage or lump-sum home equity loan, a HELOC lets you draw funds as needed during the draw period, typically 5 to 10 years, and you pay interest only on the amount actually borrowed.

The Consumer Financial Protection Bureau (CFPB) notes that most lenders cap borrowing at 85% of the home's appraised value minus the outstanding mortgage balance, measured by the Combined Loan-to-Value (CLTV) ratio. Homeowners commonly use HELOCs for home renovations, debt consolidation, education expenses, or as an emergency financial buffer. Because HELOC rates are variable and tied to the prime rate, borrowers should carefully evaluate how potential rate increases could affect monthly payments over the life of the credit line.

The HELOC Credit Line Formula

Your maximum HELOC credit line is determined by a straightforward calculation used by virtually all lenders in the United States. The formula, as outlined by the CFPB, is:

Maximum HELOC = (Home Value x 0.85) - Mortgage Balance

Home Value — the current appraised market value of your property
0.85 (85%) — the standard maximum CLTV ratio most lenders allow
Mortgage Balance — the remaining principal on your first mortgage

Worked example: If your home is appraised at $450,000 and you owe $280,000 on your mortgage, the maximum HELOC credit line equals ($450,000 x 0.85) - $280,000 = $382,500 - $280,000 = $102,500. Your interest-only monthly payment on a $50,000 draw at 8.5% APR would be $50,000 x 0.085 / 12 = $354.17/month.

Key Terms You Should Know

Combined Loan-to-Value (CLTV) — the total of all loans secured by your home divided by the home's appraised value. Most lenders require CLTV at or below 85%.
Draw Period — the initial phase (typically 5-10 years) during which you can borrow and repay funds. Minimum payments are usually interest-only.
Repayment Period — the phase after the draw period (typically 10-20 years) when you must repay principal and interest in fixed monthly installments.
Prime Rate — the benchmark interest rate set by major banks, currently at 8.5% as of early 2026. HELOC rates are typically expressed as prime plus a margin.
Variable Rate — an interest rate that fluctuates with market conditions, unlike a fixed-rate home equity loan.

HELOC vs. Home Equity Loan vs. Cash-Out Refinance

Homeowners have several options for tapping home equity. The table below compares the three most common approaches, based on data from the Bankrate 2026 Home Equity Survey.

Feature	HELOC	Home Equity Loan	Cash-Out Refinance
Interest Rate	Variable (prime + margin)	Fixed	Fixed
Average Rate (2026)	8.5% - 10.5%	8.75% - 10.0%	7.0% - 8.0%
Disbursement	Revolving credit line	Lump sum	Lump sum (replaces mortgage)
Typical Closing Costs	$0 - $500	2% - 5% of loan	2% - 6% of loan
Best For	Ongoing expenses, flexibility	One-time large expense	Lower overall rate, large amount

Practical HELOC Examples

Example 1 — Home renovation: Sarah owns a home valued at $500,000 with a $300,000 mortgage balance. Her maximum HELOC is ($500,000 x 0.85) - $300,000 = $125,000. She draws $75,000 for a kitchen remodel at 8.5% APR. During the 10-year draw period, her interest-only payment is $531.25/month. When the repayment period begins (20 years), her fully amortizing payment jumps to approximately $651/month. Use our amortization calculator to see the full payment schedule.

Example 2 — Debt consolidation: Mike has $40,000 in credit card debt at 22% APR. His home is worth $350,000 with a $200,000 mortgage. His maximum HELOC is $97,500. By drawing $40,000 at 9.0%, his monthly interest drops from $733 to $300 — saving $433/month. Over 5 years of interest-only payments, Mike saves over $25,000 in interest compared to minimum credit card payments.

Example 3 — Emergency fund: Lisa opens a $50,000 HELOC as a financial safety net but draws nothing initially. She pays no interest until she actually uses the credit line, though some lenders charge a small annual fee ($50-$75). When an unexpected medical bill of $15,000 arises, she draws only what she needs and pays $106.25/month in interest at 8.5% APR. Check your debt-to-income ratio to ensure a HELOC fits your budget.

Tips to Get the Best HELOC Terms

Shop multiple lenders: HELOC rates and fees vary significantly. Compare at least 3-5 offers from banks, credit unions, and online lenders to find the best margin over prime.
Improve your credit score first: Borrowers with FICO scores above 740 typically qualify for the lowest HELOC margins, often prime + 0% to prime + 0.5%.
Negotiate closing costs: Many lenders waive HELOC closing costs entirely. Ask about annual fees, early termination fees, and inactivity fees before signing.
Consider a rate cap: Some HELOCs include lifetime rate caps (e.g., prime + 6%). This protects you if interest rates spike during the draw period.
Plan for the payment shock: Calculate your fully amortizing repayment payment before drawing funds. Many borrowers are surprised when interest-only payments jump 50-80% at the end of the draw period.
Only borrow what you need: A HELOC is secured by your home. Overborrowing puts your property at risk if you cannot make payments.

2026 HELOC Rate Environment

As of early 2026, the average HELOC rate in the United States ranges from 8.5% to 10.5%, according to Bankrate. The Federal Reserve held the federal funds rate steady through late 2025, keeping the prime rate at 8.5%. Most HELOC rates are calculated as prime plus a margin of 0% to 2%, depending on the borrower's creditworthiness and lender. Economists expect potential rate cuts in the second half of 2026, which would directly lower variable HELOC payments for existing borrowers.

Disclaimer: This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Always consult a qualified professional for decisions specific to your situation.

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