What is a HELOC calculator?
A HELOC Calculator estimates the payments on a home equity line of credit. A HELOC usually has two stages: a draw period, when you can borrow and often pay only interest, and a repayment period, when you pay back principal and interest. The calculator shows the payment in each stage, total interest and an amortization schedule, so homeowners can see how the payment jumps when the draw period ends.
How to use it
- Enter the amount you expect to borrow (the loan amount).
- Enter the interest rate.
- Enter the draw period and the repayment period in years.
- Optionally include closing costs and fees.
- Click Calculate.
The calculator does not ask for your home value or mortgage balance. To estimate your credit limit, use the formula in the next section.
What is a HELOC?
A home equity line of credit is a revolving credit line secured by your home. You draw what you need, repay it and can borrow again during the draw period, which often lasts around 10 years. In the repayment period that follows, you can no longer draw and the balance is repaid with principal and interest. Most HELOCs have variable rates, so payments can change.
Formulas
Estimated credit limit ≈ Home value × Maximum combined LTV − Mortgage balance
Draw-period payment (interest only) = Balance × Annual rate ÷ 12
Repayment-period payment = Balance × r(1 + r)^n ÷ ((1 + r)^n − 1)
Example
With a $400,000 home, an 85% maximum combined LTV and a $250,000 mortgage, the credit limit could be about $90,000. Suppose you draw $50,000 at 8.5% with a 10-year draw and 20-year repayment period:
- Interest-only payment during the draw period: about $354.17 a month
- Payment once repayment starts: about $433.91 a month
If the rate rises, both payments rise too.
HELOC Costs, Qualification, and Common Uses
The amount you can borrow and the cost of a HELOC depend on several factors. Lenders may consider your home value, current mortgage balance, credit history, income, debt-to-income ratio, and other financial information. Common costs and considerations include:
- Loan-to-value ratio: Lenders often limit the combined amount borrowed against a home to a certain percentage of its value.
- Closing costs: These may include appraisal, origination, title, documentation, and other fees.
- Annual fees: Some HELOCs charge recurring fees for maintaining the credit line.
- Variable interest rate: The rate can change over time, which may cause payments to increase or decrease.
- Home improvements: A HELOC can provide flexible funding for renovations and major repairs.
- Education expenses: Some homeowners use available credit for tuition and related costs.
- Debt consolidation: Funds may be used to pay higher-interest debts, although the home becomes collateral for the new borrowing.
The APR can also help when comparing HELOC offers because it may account for interest and certain fees, providing a broader view of the borrowing cost.
HELOC vs. home equity loan vs. cash-out refinance
A home equity loan gives you one lump sum, usually at a fixed rate. A cash-out refinance replaces your mortgage with a bigger one. A HELOC lets you borrow only what you need, when you need it, but usually at a variable rate. A HELOC suits costs spread over time, such as a renovation done in stages.
Tips
- Plan for the higher payment when the draw period ends.
- Test a rate 2 or 3 points higher to see how a rise would affect you.
- Ask about annual fees, early-closure fees and any minimum draw.
Frequently Asked Questions
Your potential borrowing limit depends on your home’s value, existing mortgage balance, the lender’s LTV requirements, credit profile, income, and other qualification factors. Each lender may set different limits.
A HELOC provides a revolving line of credit that you can generally draw from as needed, while a home equity loan usually gives you a lump sum upfront with fixed repayment terms. A HELOC commonly has a variable interest rate, while home equity loans often have fixed rates.
The draw period is the time when you can access available credit and repay or redraw funds according to the agreement. After it ends, the repayment period begins, during which you generally cannot make new withdrawals and must repay the outstanding balance.
Many HELOCs use variable interest rates tied to a market index plus a lender margin. As the underlying rate changes, your interest rate and monthly payment may also change.
It depends on your financial situation. A HELOC allows you to borrow only what you need, while a cash-out refinance replaces your existing mortgage and provides additional funds. Comparing interest rates, fees, repayment terms, and your existing mortgage can help determine which option is more suitable.
Disclaimer: This calculator gives estimates for general information only. It is not financial, tax or legal advice. Results depend on the numbers you enter and on simplified assumptions, so your actual figures may differ. Check important decisions with a qualified professional or the official source.
Related Calculators
To compare ways of borrowing against your home, try these calculators.