HELOC Calculator

Analyze home equity line of credit payments and costs

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Interest-Only Payment (Draw Period)

About the HELOC Calculator

This HELOC calculator analyzes your home equity line of credit by comparing interest-only draw period payments with fully amortized repayment phase costs. Understanding both phases is essential for managing a HELOC effectively. HELOCs offer flexibility with interest-only payments during the draw period, but the repayment phase can bring significantly higher payments. This calculator breaks down both phases so you can plan for the full cost of your home equity line of credit.

How to Use This Calculator

  1. Enter your home value, mortgage balance, credit limit, and current balance drawn.
  2. Input the interest rate, draw period years, and repayment period years.
  3. Click Calculate to see interest-only payments, CLTV ratio, and repayment costs.

The Formula

Interest-only payments use the simple interest formula. The repayment phase uses the standard amortization formula on the outstanding balance.

Draw Payment = Balance × (Rate / 12)

Frequently Asked Questions

What happens after the HELOC draw period ends?

After the draw period ends, the repayment period begins. You can no longer withdraw funds and must make fully amortized payments to repay the balance.

Is HELOC interest tax deductible?

HELOC interest may be tax deductible if the funds are used for home improvements. Consult a tax professional for your specific situation.

How long is a typical HELOC draw period?

Most HELOCs have a draw period of 10 years, during which you can borrow up to your credit limit and make interest-only payments. After the draw period, a 20-year repayment period begins.

Can my HELOC be frozen or reduced?

Yes, lenders can freeze or reduce your HELOC credit limit if your home value decreases significantly or if your financial situation changes. This is a key risk to consider.

What happens to my HELOC if I sell my home?

If you sell your home, your HELOC balance must be paid off at closing along with your first mortgage. The HELOC holder will receive their share from the sale proceeds.

How does a HELOC affect my credit score?

Opening a HELOC may temporarily lower your credit score due to the hard inquiry and new account. However, responsible use and timely payments can improve your score over time.

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