HELOC Payment Calculator | TheUSCalculator.com
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HELOC Payment Calculator

Calculate your monthly HELOC payment during the draw and repayment periods. Compare interest-only vs full payments for your Home Equity Line of Credit.

✓ Free ✓ No Sign-up ✓ Instant Results ✓ Amortization Schedule

💳 HELOC Payment Calculator

Free · Instant · No registration required

Loan Amount $75,000
$
Annual Interest Rate (APR) 9.25%
%
Loan Term 20 years
Draw Period (years) 10 yrs
Term Unit
Monthly Payment
$0.00
per month
Principal
—
Total Interest
—
Total Cost
—
Payoff Date
—
Interest-Only Draw Period Payment
—
⚠️ Repayment Period Payment
—

⚠️ This calculator provides estimates for educational purposes only. Actual loan payments may vary based on your lender's specific terms, fees, and your credit profile. Consult a licensed financial advisor before making major financial decisions.

About This HELOC Payment Calculator

A HELOC (Home Equity Line of Credit) is a revolving credit line secured by your home's equity — similar to a credit card but at much lower rates. Unlike a home equity loan (which gives you a lump sum), a HELOC lets you borrow, repay, and borrow again up to your credit limit during the draw period.

Most HELOCs have a 10-year draw period followed by a 20-year repayment period. During the draw period, you make interest-only payments. When repayment begins, payments jump significantly to cover both principal and interest — our calculator shows you both phases.

Typical Rate (2025)Prime + 0–2% margin
Rate TypeVariable (tied to Prime)
Draw PeriodTypically 10 years
Repayment PeriodTypically 10–20 years
Max Credit Line (LTV)Up to 85% of home value
Annual Fee$0–$100 (many lenders)

How to Use This Calculator

1

Enter your HELOC credit limit or expected balance as the loan amount.

2

Enter the current variable rate — typically Prime Rate plus your lender's margin.

3

Enter the draw period (usually 10 years) and your total HELOC term.

4

Click Calculate to compare your low interest-only draw payment vs. the higher repayment period payment.

How the Payment Formula Works

Our calculator uses the standard loan amortization formula used by all US banks, mortgage lenders, and credit unions:

// Standard Amortization Formula M = P × [ r(1+r)ⁿ ] / [ (1+r)ⁿ − 1 ]

// Variables: M = Monthly payment amount P = Principal (loan amount) r = Monthly interest rate (APR ÷ 12 ÷ 100) n = Total number of monthly payments (term in months)

Each payment covers two components: interest (charged on your remaining balance) and principal (which reduces your balance). In the early months, more of your payment goes toward interest. As your balance decreases, more goes toward principal — this is called front-loaded interest amortization.

How a HELOC Works and When to Use One

A Home Equity Line of Credit (HELOC) is a revolving credit line secured by your home, similar in structure to a credit card but at much lower interest rates. Unlike a home equity loan that delivers a lump sum, a HELOC lets you draw funds as needed during a set draw period — typically 5 to 10 years — making it ideal for ongoing expenses like phased renovations.

HELOCs have two phases. During the draw period, you can borrow up to your credit limit and typically make interest-only payments. When the repayment period begins — usually 10 to 20 years — you can no longer draw funds and must repay both principal and interest. Monthly payments often increase significantly at this transition, so plan ahead.

Most HELOCs carry a variable interest rate tied to the prime rate. When rates rise, your payment rises with them. Some lenders offer a rate-lock option that lets you convert part of your balance to a fixed rate, adding payment predictability. Always ask about this feature when shopping for a HELOC.

If you prefer predictable fixed payments over a flexible credit line, a standard Home Equity Loan may be a better fit. For borrowers without sufficient home equity, our Personal Loan Calculator can help you explore unsecured alternatives that do not put your home at risk.

Frequently Asked Questions

During the draw period (typically 10 years), you can borrow up to your credit limit, repay, and borrow again — like a credit card. You're only required to make interest-only payments on your outstanding balance, though you can always pay more toward principal. At the end of the draw period, your line closes and you enter the repayment phase where you make full principal + interest payments.
When the draw period ends, you can no longer borrow from the HELOC. Your outstanding balance enters the repayment period (typically 10–20 years), during which you make amortizing principal + interest payments. This 'payment shock' can be significant — if you borrowed $75,000 at 9% with a 10-year repayment, your payment could jump from ~$562/month (interest-only) to ~$950+/month (P+I). Plan ahead.
Most HELOCs have variable interest rates tied to the Prime Rate (published in the Wall Street Journal). When the Fed raises rates, your HELOC rate — and monthly payment — increases. Some lenders offer the ability to lock in a fixed rate on all or part of your HELOC balance, converting it to a home equity loan-style fixed payment. This is worth considering during rising-rate environments.
Choose a home equity loan if: you need a specific amount all at once, you want payment predictability with a fixed rate, or you're doing a one-time project with a defined cost. Choose a HELOC if: you have ongoing or uncertain expenses, you want the flexibility to borrow as needed, or you don't need all the money at once. HELOCs are ideal for home renovations with unpredictable costs.
Most lenders require a credit score of 680+ for a HELOC, with the best rates going to borrowers with 720+ scores. Lenders also look at your combined loan-to-value ratio (CLTV — your first mortgage plus HELOC balance vs. home value), debt-to-income ratio (typically under 43%), and employment history. Having at least 20% equity in your home is usually required.