HELOC Calculator: estimate your monthly payment

Estimate how much you can borrow with a home equity line of credit (HELOC) and what your monthly payments might be. Most HELOCs have a draw period of up to 10 years, followed by a repayment period. Use this tool to see how your home equity, mortgage balance and credit score affect your borrowing potential.

PRO TIP

Use your estimate as a starting point to compare borrowing options—a HELOC vs. a home equity loan or vs. refinancing a mortgage, for example.

What is a HELOC and how does it work?

A home equity line of credit is a revolving line of credit that lets you borrow against your home’s equity. You can take what you need when you need it, up to your credit limit, so it’s great for big or ongoing expenses. You only pay interest on the amount you actually use, which can help keep your costs down compared to a lump-sum home equity loan.  In some cases, the interest may be tax-deductible if the funds are used to buy, build or substantially improve your home, according to IRS Publication 936.

Understanding the HELOC draw vs. repayment period

Most HELOCs have two phases. First is the draw period, when you can borrow as needed and typically make interest-only payments. After that comes the repayment period, which is when you start paying back both principal and interest. Here’s how each works:

FEATUREDRAW PERIODREPAYMENT PERIOD
Access to fundsBorrow as needed up to your credit limitNo additional borrowing allowed
Required monthly payment amountUsually lower—covers interest onlyHigher, includes principal and interest
Typical durationTypically 10 yearsTypically 20 years
Borrowing flexibilityAllowed to draw, repay and redrawPayments only—no redraws allowed

HELOC benefits and drawbacks

A HELOC gives you flexible access to funds, but it also comes with risks. Here’s a quick look at the pros and cons:

AdvantagesDisadvantages
Flexible borrowing and repayment optionsVariable interest rates can increase monthly payments
Access to potentially large amounts of moneyRisk of foreclosure
Interest may be tax-deductible for home improvements Easy access to funds can lead to overspending

Bottom line: A HELOC can be a smart way to access your home’s equity, but it takes discipline and financial planning to use it wisely.

Factors that affect HELOC payments

Knowing what impacts your home equity line of credit payments can help you borrow more confidently and avoid surprises down the road. 

How interest rates affect your HELOC

Most HELOCs have variable interest rates, which means your rate—and your payment—can go up or down over time. These fluctuations are influenced by a range of factors, including general market conditions and your lender’s terms. Keeping an eye on current mortgage rates can help you plan for changes in your monthly costs.

How the amount you borrow impacts your HELOC

With a home equity line of credit (HELOC), you’re in control of how much you borrow—and how much you pay each month. The more you draw from your HELOC, the higher your monthly payments will be. The good news is that you’ll only pay interest on the amount you use, not your full credit limit. Your borrowing limit is based not just on your home’s equity but your current mortgage balance, credit score and debt-to-income ratio. Every lender weighs these factors a little differently, so talk to yours about how much you may be eligible to borrow.

HELOC vs. home equity loan comparison

Both a home equity line of credit and a home equity loan let you borrow against your home’s value, but they’re structured differently. A HELOC gives you flexible, on-demand access to funds with a variable rate, while a home equity loan provides a lump sum with a fixed interest rate and predictable monthly payments. The table below highlights the key differences to help you choose the option that best fits your needs. 

FeatureHome Equity LoanHELOC
Interest RatesFixedVariable
Payment TypeLump-sum paymentFlexible draw period
Monthly PaymentsConsistentInterest-only payments possible during draw period
Best Used ForImmediate, large expensesOngoing expenses

HELOC vs. refinancing a mortgage

If you're looking to tap into your home’s equity without changing your current mortgage, a home equity line of credit could be a smart alternative to refinancing. With a HELOC, you can borrow what you need, without restarting your mortgage term. Use our HELOC Calculator to estimate your line of credit and see how the payments could fit into your monthly budget.

How to refinance your HELOC

Refinancing a home equity line of credit involves replacing your current line of credit with a new loan that may offer better terms, like a lower rate, fixed payments or extended repayment terms.

Depending on your goals, you could:

  • Refinance your HELOC into a new HELOC
  • Convert to a fixed-rate home equity loan
  • Consolidate it through a full mortgage refinance 

 Follow these steps to complete the process smoothly: 

  1. Review your current HELOC terms: Know your current balance, interest rate, repayment schedule and whether there are any fees or early closure penalties.
  2. Check your credit and equity: Lenders will consider your credit score and the amount of equity you have in your home. Improving either can help you qualify for better terms.
  3. Compare lenders and apply: Shop around for competitive rates and terms. Once you've found the right fit, complete the lender’s application process and submit all required documentation.
  4. Close your new loan: After approval, your new loan will pay off your existing HELOC. You’ll then start repayment under the new structure.

How to pay off a HELOC faster

Paying off your HELOC early can save you money on interest and give you more financial freedom. Here are some practical strategies: 

  • Make extra payments during the draw period (when you may only owe interest) to reduce your principal faster.
  • Switch to biweekly payments instead of monthly. This simple shift can result in an extra full payment each year.
  • Apply windfalls such as tax refunds, bonuses or extra income toward the balance.
  • Refinance to a shorter term to pay off your balance on a set timeline.
  • Set a repayment goal to keep you motivated and on track.

FAQs about HELOCs

  • A home equity line of credit, or HELOC, is a revolving line of credit secured by your home. It works much like a credit card: you can borrow as needed during the draw period (typically 5 to 10 years) and make interest-only payments during that time. After the draw period ends, the repayment period begins where you pay back both principal and interest.

  • To estimate your home equity, subtract your current mortgage balance from your home’s current market value. Most lenders allow you to borrow up to 85% of your home’s value, minus what you still owe on your mortgage. For example, if your home is worth $400,000 and you owe $250,000, you may qualify for a HELOC up to $90,000.

  • HELOC interest rates are usually variable, meaning they change over time. Rates are based on the prime rate plus a margin set by the lender. As of 2025, most HELOC rates range from 6% to 9% APR, depending on factors like your credit score, loan-to-value ratio and lender terms.

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