When your first mortgage carries a rate far below what a new loan would cost, and your equity has grown into real money you need to reach, replacing that loan just to get at the equity can be an expensive mistake. A second mortgage solves that pairing, and it comes in two forms: the HELOC, a variable-rate line of credit you draw as needed, and the home equity loan, a fixed-rate lump sum also called a fixed-rate second. We spent a full episode on the HELOC vs home equity loan decision, and our conclusion is that one calculation, the blended rate, settles most of it before preferences even enter the room.
Any second mortgage sits in second lien position behind your existing loan. Your first mortgage stays untouched at its original rate, and a new lender, usually a different one, loans you a portion of your equity from the junior spot. If you stop paying, that lender only collects after the first lender is made whole, and can get wiped out entirely. That extra risk is why seconds price above first mortgages, and it is also the whole appeal from your side: you access equity while the cheap first keeps amortizing exactly as it was.
Both versions share one more trait that deserves bold letters: this is another loan with another payment, secured by your house.
A home equity line of credit is revolving. You get a credit limit, you draw what you need when you need it, you pay interest only on the outstanding balance, and you can pay it down and draw again, the way a credit card works but secured by your equity. The structure has two phases. During the draw period, commonly the first three to ten years of a 25-to-30-year term, the line is open and the required payment is typically interest-only. After that comes the repayment period, when the line closes, the balance amortizes, and the payment steps up. Ask any HELOC lender three things before you sign: how long the draw period runs, how long the interest-only period runs, and what the repayment period looks like.
A home equity loan hands you the full amount at closing at a fixed rate, with principal-and-interest payments from month one. You get certainty on the rate and the payment for the life of the loan. The cost of that certainty is flexibility: you take all the money on day one whether you need it yet or not, and you pay interest on all of it.
A cautionary tale makes the stakes concrete. When HELOC rates looked cheap ahead of a Federal Reserve hiking cycle, borrowers grabbed them over fixed seconds priced a point or two higher, and we told them at the time to stop. HELOCs are variable, and as the Fed hiked, those borrowers watched their rate climb more than five percentage points while fixed-second borrowers kept the rate they signed. The lesson cuts both ways: when cuts look likely, a variable line can ride the rate down while a fixed second stays put. Nobody can promise where rates go, so treat the choice as a risk decision and weigh how much payment volatility you can actually live with. We work through that same variable-versus-fixed question in the pros and cons of adjustable rate mortgages.
Most borrowers walk in having already decided to protect a 3% first mortgage at all costs. Our answer is to run the blended rate: the weighted average rate across the first and the proposed second, compared against the rate on one new cash-out first mortgage. (The rates in the examples below reflect quotes discussed on the episode, aired 9/26/2023. They are here to show the math; current pricing will differ, so confirm real numbers with a lender.)
What matters is how much you need to borrow, first and second combined, and what the overall blended rate comes to. This is a case where the numbers never lie.
If the math eventually points at rolling everything into one new first mortgage when rates allow, go in with eyes open on fees and break-even; how refinancing works walks the full process, and our guide to common refinancing mistakes covers where those deals go wrong.
The rate a bank advertises on a HELOC is often a teaser, an introductory rate for the first three to six months. Your real rate is the index plus a margin. Nearly every HELOC uses the prime rate as its index, and prime moves in lockstep with the Federal Reserve: hikes push it up, cuts pull it down. Your margin is fixed for the life of the line, so once you know it, you can forecast your HELOC by watching the Fed.
Margins tell you where you stand. Strong borrowers at reasonable loan-to-values generally land somewhere between half a point and two points over prime. Lower credit scores or aggressive loan-to-values can carry margins of four to five points, which turns an expensive line into a painful one. We once wrote Josh's dad a HELOC at prime minus one, and those days are gone for everyone.
Two structural details deserve attention. Most HELOCs can adjust monthly with no periodic cap, limited only by a lifetime cap that sits at 18% on nearly every line we have seen. And lenders qualify you conservatively: they typically add a couple of points to your start rate and amortize the balance over the shorter repayment period, around 20 years, so your qualifying payment runs far above your actual interest-only payment. Budget on the qualifying number and the eventual payment step-up loses its sting.
Equity alone does not get you approved; these are fully underwritten loans.
Where you shop matters as much as whether you qualify. Banks lending their own money often post the best raw terms alongside the most conservative guidelines and the slowest, most rigid underwriting, so a business owner or a middling score that one bank declines can be a routine approval elsewhere. Josh's team shops nearly 100 investors precisely because the spread between lenders is wide, and on seconds it runs wider than on firsts. Compare a broker quote against your own bank and let the numbers pick.
We preach mortgage freedom: fix the payment, pay the house off, arrive at retirement without a mortgage. Pulling equity out moves you the other direction, so it has to earn its place. The uses we see hold up are consolidating expensive debt after a rough stretch, unavoidable medical bills, a renovation or addition (which returns enjoyment and some value, never dollar-for-dollar), education, and a down payment on the next home when selling first is off the table. During the loose years before the last housing crash, lenders handed out cash-out loans at 90, 95, even 100 percent of value, and that leverage helped drag the whole system down. Post-crash guidelines mostly hold the line near 80% on seconds. The guardrail exists; the discipline is still yours.
Exhaust the alternatives first, make sure the loan fits the plan that gets you to your finish line, and pressure-test the blended-rate math on your actual balances before you commit. A free Roadmap conversation runs about 20 minutes and puts your real numbers, first, second, and blended, side by side. Have a purpose for the money and make it wise spending. Home equity is an asset. Allocate it like one.
Stop guessing what you can really afford
Tell Josh and his team your situation, and you'll get the exact price range you qualify for, the loan that gets you the most home for your money, and a step-by-step plan to close. They handle your loan directly, never a referral, and go far beyond a basic pre-approval, so you stop second-guessing, tour with confidence, and write offers sellers take seriously.
Build my Roadmap →A HELOC is a revolving line of credit with a variable rate: you draw what you need during a draw period, pay interest only on the outstanding balance, and can repay and redraw. A home equity loan is a lump sum at a fixed rate with principal-and-interest payments from the first month. Both are second mortgages that leave your existing first mortgage, and its rate, completely untouched.
It depends on your cash need and your rate outlook. A HELOC fits ongoing or uncertain needs and can ride rates down when the Fed cuts, since nearly all HELOCs float with prime. A home equity loan fits a known lump-sum need and protects you if rates climb; borrowers who chose fixed seconds ahead of a Fed hiking cycle kept their rate while HELOC rates rose more than five points. Nobody can promise rate direction, so weigh how much payment volatility you can tolerate.
Run the blended rate: the weighted average across your existing first and the proposed second, compared with the rate on one new cash-out mortgage. A large low-rate first plus a modest second usually blends well below a new first, so keep the first. A small remaining first plus a large cash need can blend close to or above a new mortgage rate, and one loan with one payment may win. Have a lender show both side by side.
The best terms generally cap combined borrowing at 80% of the home's value across both mortgages. Broker channels reach 90% and occasionally 95%, with meaningfully higher rates and margins, and lower credit scores shrink the maximum further. Lenders confirm value with a full appraisal or, on smaller lines with strong credit and lower loan-to-value, an automated valuation model. Guidelines vary widely by lender, so shop beyond your own bank.
Many banks and credit unions want roughly 680 to 700 or better and reserve their best terms for those borrowers. Broker-placed programs run down to about 640, some to 620, and private-money options go lower when there is substantial equity. Expect each step down in score to raise the margin over prime and reduce the loan-to-value a lender will allow. One institution's decline says little about the whole market, so compare several sources.
The fastest lenders can close in about two weeks; 30 days is a strong result, and 45 to 60 days is common, with banks and credit unions typically the slowest. Speed depends on whether an automated valuation replaces a full appraisal, how complex your income is, and the lender's processing queue. If the money is for a time-sensitive purchase, ask your lender up front how often they close with that source and what the realistic timeline is.