How a home equity loan works
A home equity loan is a closed-end second mortgage. You borrow one amount, receive it in a single lump sum, and repay it in equal installments over a set term, usually at a fixed interest rate. Because the payment never changes, the loan is easy to budget: the same principal-and-interest payment is due each month until the balance is zero.
The borrowing is secured by your home, which is why the rate is generally lower than on an unsecured loan, and also why the risk is higher. If you stop paying, the lender can foreclose. A home equity loan suits a borrower who knows the exact amount needed, such as a renovation with a fixed bid or a set debt payoff, and wants that money available up front. For a plain-language definition, see what a home equity loan is.
How a HELOC works
A home equity line of credit (HELOC) is open-end credit secured by your home. The lender approves a maximum credit limit, and you draw against it as needed, similar to a credit card. A HELOC runs in two phases: a draw period, when you can borrow and often pay mostly interest, and a repayment period, when the line closes to new advances and you pay down principal plus interest.
Most HELOCs carry a variable rate linked to an index, so the payment moves when the index moves. Some lenders offer a fixed-rate option for individual draws, or let you lock a portion of the balance. Because interest accrues only on what you actually draw, a line can cost less than a lump-sum loan when you borrow in stages. For a fuller definition, see what a HELOC is.
Side-by-side comparison
The two products share a foundation, since both are second liens recorded against your home, and they diverge from there. The table below summarizes the practical differences.
| Feature | Home equity loan | HELOC |
|---|---|---|
| How funds arrive | One lump sum | Revolving line you draw as needed |
| Interest rate | Usually fixed | Usually variable, sometimes with fixed-rate draw options |
| Monthly payment | Equal payments over the term | Often interest-only minimums during the draw period |
| Structure | Single term that amortizes from the first payment | Draw period followed by a repayment period |
| Best suited to | A known, one-time cost | Staged or uncertain costs |
| Main risk | A fixed payment on a secured debt | Payment increases when repayment begins and rates can change |
The table is a starting point only. The binding terms live in your loan agreement and the disclosures the lender gives you.
Rates, payments, and what changes over time
On a home equity loan, the Truth in Lending Act requires the lender to disclose the annual percentage rate and the finance charge before you sign, following the closed-end rules in Regulation Z. That makes offer-to-offer comparison reasonably direct once you hold the loan amount and term constant.
A HELOC is open-end credit, so the disclosures work differently. You receive an application disclosure and, before the first advance, account-opening disclosures that identify the index, the margin, how the rate is calculated, and any cap on how high the rate can go over the life of the line. Those caps deserve attention, because a line with a high lifetime ceiling can become costly if the index rises sharply.
The payment paths also diverge. A home equity loan amortizes from the first payment, so principal falls every month. HELOC minimum payments during the draw period often cover interest only, meaning the balance does not shrink. When repayment starts, the required payment can rise because principal and interest are now due on the full balance. Ask the lender to show the repayment-period payment in writing before you open a line.
Closing costs, fees, and the tax question
Both products are secured by real estate, so both normally involve an appraisal, a title search and lender's title insurance, recording fees, and origination charges. A home equity loan usually adds these to the loan balance or collects them at closing. Some HELOCs advertise no closing costs, but the trade-off is often a higher rate or an early-closure fee if you pay off and close the line within a set period. Our guide to reading a loan agreement shows where those terms appear.
Tax deductibility is not automatic. Under federal rules, interest on a home equity loan or HELOC is generally deductible only when the funds are used to buy, build, or substantially improve the home that secures the loan. Using the money to consolidate credit cards or cover everyday expenses typically does not qualify. The IRS overview of home mortgage interest explains the rules, and a tax professional can apply them to your situation.
How to qualify for either option
Underwriting for both products looks at the same core questions: the equity in your home, your credit history, and your ability to repay. The Federal Trade Commission credit and loan guidance and the CFPB homebuying resources both describe how lenders evaluate secured borrowing.
- Measure your equity. The lender compares your existing mortgage balance plus the new credit limit against the home's appraised value, a figure called the combined loan-to-value ratio. The lower that ratio, the more room you have.
- Check your credit reports first. Errors are common and correctable. You can request reports from the nationwide agencies at AnnualCreditReport.com, and the CFPB explains how reports and scores work.
- Prepare income and debt documents. Lenders calculate a debt-to-income ratio that includes the new payment along with property taxes, homeowners insurance, and any association dues.
- Compare offers on identical terms. Ask each lender for the same loan amount, term, and draw structure, then compare the annual percentage rate rather than the headline interest rate.
- Ask what happens at the end. For a HELOC, request the repayment-phase payment in writing. For a home equity loan, confirm there is no prepayment penalty.
If you settle on a line of credit, the HELOC application process walks through the remaining steps.
Which one fits your situation
The deciding question is whether your spending is a single event or a series of them.
- Choose a home equity loan when the amount is known in advance, the project or payoff happens once, and a payment that stays the same for the life of the loan matters more than flexibility.
- Choose a HELOC when costs arrive in stages, such as a renovation billed in phases, tuition due each term, or a reserve for repairs you have not scheduled yet, and you would rather not pay interest on money sitting idle.
- Consider a different tool if you need less than the cost of setting up a second lien. A cash-out refinance replaces your first mortgage, which can make sense only if the new rate is competitive, and an unsecured personal loan avoids putting the home at risk.
Before committing, run the numbers on both structures with the home equity loan calculator so you compare payments rather than rates alone.
Risks to weigh before you borrow
Every option here is secured debt. Falling behind can lead to foreclosure, so the payment must fit a budget that would survive a job change or a large unexpected expense. If the monthly payment works only at a promotional rate, it does not work.
Three details deserve a second look. First, HELOC rates are usually variable, and the lifetime cap in your agreement defines the worst case. Second, a lender can freeze or reduce a line of credit in the circumstances the agreement spells out, so a HELOC is not a guaranteed reserve. Third, a HELOC is generally reported as a revolving account while a home equity loan is reported as an installment account, and the two can affect credit scores differently because revolving balances feed utilization. The CFPB credit report guidance explains how those balances are scored, and its mortgage tools section covers shopping for a secured loan.