Home equity lines of credit, explained from application to payoff

A HELOC is a line of credit secured by your house. The lender records a second lien behind your first mortgage, sets a limit based on how much equity you have, and lets you borrow against that limit when you want to. You pay interest only on what you have drawn, not on the whole limit.

It runs in two phases. During the draw period, usually around 10 years, you can borrow, repay and borrow again, and many lenders only ask for interest each month. Then the repayment period starts, typically 10 to 20 years, the line closes to new draws, and the payment rises to cover principal as well.

The rate is usually variable. It is built from a public index, most often the prime rate, plus a margin the lender sets from your credit and equity. When the index moves, your rate and your payment move with it. Some lenders now offer fixed-rate lines, or let you lock a drawn balance at a fixed rate, which trades flexibility for a payment you can plan around.

Your first mortgage stays exactly as it is. That is the main reason a line beats a cash-out refinance for anyone who locked a low first-mortgage rate.

The line is for people who can carry a payment, whose credit will pass, and who want to keep every dollar the house gains. If any of those three is shaky, one of the other paths usually serves better.

If the payment is the problem rather than the credit, read what no monthly payment really costs before you decide. If the credit is the problem, credit under 660 lays out what still works.

Timelines vary a lot by lender. Online lenders that use automated valuations can fund in about a week. Banks and credit unions that order a full appraisal and close in person often take 4 to 6 weeks. The steps are the same either way.

1. 1

   Soft check and estimate

   Day 1

   You enter the address, what you owe, and a rough income and credit range. Most lenders show an estimated limit and rate from a soft credit pull that does not touch your score. Nothing here is a commitment on either side.

2. 2

   Full application

   Day 1 to 3

   You consent to a hard credit pull and upload documents: recent pay stubs or two years of tax returns if you are self-employed, your mortgage statement, homeowners insurance, and a government ID. Expect the hard pull to shave a few points off your score for a few months.

3. 3

   Valuation

   Day 2 to 14

   The lender needs a number for the house. Some use an automated valuation and skip the visit. Others order a drive-by or a full appraisal, which adds a week or two and a few hundred dollars. The valuation sets your limit, so a low one is the most common reason the final offer comes in under the estimate.

4. 4

   Underwriting

   Day 3 to 21

   An underwriter checks your debt-to-income ratio, usually wanting it under about 43 to 50% with the new payment included, confirms your equity after the first mortgage, and runs a title search to make sure no other liens are hiding. Questions about a deposit or a gap in income come up here.

5. 5

   Closing

   Day 7 to 42

   You sign the note and the deed of trust or mortgage that records the lien. Some lenders close online with a notary on video; others still need a wet signature. On a primary residence, federal law gives you three business days after signing to cancel.

6. 6

   Funding and first draw

   After the rescission period

   The line opens. Some lenders require you to draw a minimum amount at closing, sometimes the whole limit; others let you leave it at zero. Your first statement arrives about a month after the first draw.

For a closer look at what slows each step down, read how long a HELOC takes.

The line is usually the lowest-cost option on this site, but low cost is not no cost. The money shows up in three places: the setup, the monthly interest, and the rate moving after you have drawn.

The catch on waived closing costs is usually the early closure fee: the lender eats the setup cost on the bet that you keep the line open for a few years. Close it early, and they charge the cost back.

Rate movement is the cost people underweight. A line drawn at 8% that drifts to 10% raises an interest-only payment on $50,000 from about $330 to about $420 a month. Lines carry a lifetime cap, often around 18%, and sometimes a cap on how far the rate can move in one year. Ask for both numbers before you sign.

Interest on a line is sometimes deductible, and the rules depend on what you use the money for. HELOC interest and taxes covers it in plain terms.

Every path here turns the house into cash. They differ in what they ask of you, when the cost lands, and what happens to the upside.

The two most common comparisons get their own articles: HELOC against a home equity investment and HELOC against a cash-out refinance.

Having these on hand turns a three-week process into a one-week one at most online lenders.

• Your most recent mortgage statement, showing the balance and the servicer
• Two recent pay stubs and last year's W-2, or two years of tax returns if you are self-employed
• Your homeowners insurance declarations page
• A government photo ID, and your Social Security number for the credit pull
• A rough list of your monthly debts, since the underwriter will compare them to income
• The property tax bill, and any HOA statement, if you have one
• Your own estimate of what the house is worth, so a low valuation does not surprise you

Before you apply, it helps to know roughly where your equity lands. Why equity is a range explains why the lender's number may differ from yours, and how much you can borrow walks the math.

1. 01Budgeting on the teaser rate. Introductory rates often last 6 to 12 months. Run the payment at the fully indexed rate, and at a rate 2 points higher than that.
2. 02Drawing the whole line at closing to feel safe. Interest starts the day you draw. Leave what you do not need undrawn, unless your lender requires a minimum.
3. 03Treating the draw period as the whole loan. The payment jumps when repayment starts, sometimes by half or more. Know the date and plan for it.
4. 04Using it to pay cards you then refill. The house is now behind the debt, and the cards are full again. Using equity for card debt is honest about when this works.
5. 05Forgetting the lender can freeze or cut the line. If home values drop or your credit changes, lenders may reduce the limit. A line is not an emergency fund you fully control.
6. 06Applying with several lenders over several months. Rate shopping within a short window counts as one inquiry at most scoring models. Spread out, each pull costs you points.
7. 07Skipping the early closure clause. If there is a chance you sell or refinance in the next few years, the waived closing costs are not really waived.