A bridge loan and a HELOC both let you tap your current home to fund your next one, but they solve different problems: a bridge loan is short-term financing for a gap you can see ending, while a HELOC is flexible credit you draw only as you need it. This guide walks the decision the way a lender actually works it, with the numbers that decide the answer.
The worst advice home buyers get when they are trying to buy and sell at the same time is that a bridge loan and a home equity line of credit are basically the same tool with two names. They are not. I've worked with borrowers who reached for one when the other would have cost them far less, simply because nobody walked them through the question that actually decides it. Both products let you pull money out of the home you already own. That's where the overlap ends.
Here is the situation most people are in. You found the next home, or you're about to, and the down payment is sitting inside the house you still live in. You cannot get to that money until you sell, and you may not want to sell until you have somewhere to land. That timing gap is the whole problem, and how you cross it determines what you pay and how much risk you carry while two transactions are in motion at once.
That's the simple version of the question. The fuller picture is that a bridge loan and a HELOC answer two different versions of the same need, and the version you're actually living decides which one fits. The rest of this guide is about telling those two versions apart, then running the numbers the way a lender does. By the time you finish, you should be able to look at your own situation and know which product the math points to before you ever pick up the phone.
A bridge loan is short-term financing meant to cover a temporary funding shortfall while you line up something more permanent. In a move, that shortfall is almost always the down payment. The loan uses your current home as collateral and gives you the cash to close on the new place before the old one sells. When the sale finally goes through, the proceeds pay the bridge loan off. Most bridge loans run for a year or less, which is the first clue to how they are priced and why.
Because the loan is short and tied to a sale you expect soon, the headline interest rate is not where the cost lives. The cost lives in the fees and the structure: origination charges, and in some cases interest that accrues even if you make few or no payments during the term. A bridge loan is built to disappear quickly, so a lender prices it to be worth doing for a short window rather than to sit on the books for thirty years. That's a different animal from a mortgage, and it should be evaluated differently.
There is a quieter risk worth naming. A bridge loan assumes your current home sells, and sells roughly when you expect it to. If the sale stalls, you can find yourself carrying your old mortgage, your new mortgage, and the bridge loan at the same time. A good lender will stress-test that scenario with you before you sign, not after. An honest conversation like that is far easier to have when you and your lender are walking toward the finish line together rather than treating each other as adversaries.
A bridge loan earns its place when the need is large, defined, and short. You know exactly how much you need, which is the down payment on the new home. You know what ends the loan, which is the closing on your current home. And you expect that ending to arrive within months, not years. When all three are true, the short-term structure is doing exactly what it was designed to do, and you're not paying to keep a line of credit open that you don't need.
A HELOC, or home equity line of credit, is revolving credit secured by your home. Instead of handing you a lump sum, it gives you a credit limit you can borrow against during a set draw period, repay, and borrow against again. It works more like a credit card backed by your house than like a traditional mortgage. You only pay interest on the balance you have actually drawn, which is the single most important feature to understand when you compare it against a bridge loan.
HELOCs typically carry a variable interest rate, which means the rate, and therefore the payment, can move as the broader market moves. That variability cuts both ways. It can work in your favor if you carry a balance for only a short time, and it can work against you if you draw heavily and hold the balance for years. A HELOC also sits behind your first mortgage as a second lien, so the first mortgage gets paid first if the home is ever sold or foreclosed. Those are not reasons to avoid a HELOC. They are reasons to match it to the right job.
The flexibility is the point. If you're not certain how much you'll need, or when, a HELOC lets you keep the option open without paying for money you never touch. That makes it a natural fit for a rainy day reserve, a renovation that may run in phases, or a buy-and-sell move where you're not sure how much of the gap you'll actually need to cover. At AmeriSave, our home equity line of credit is built around that draw-only-what-you-need logic, which is what makes it a different decision from a fixed lump sum.
A HELOC earns its place when the need is uncertain, open-ended, or smaller than it first looks. Maybe you think you'll need money for the move but you're not sure how much, because you don't yet know what your current home will sell for or how the timing will line up. Maybe you want a reserve you can tap if the gap turns out to be real and leave untouched if it doesn't. In all of those cases, paying interest only on what you draw beats borrowing a fixed sum you may not need.
When a homeowner asks me whether they should use a bridge loan or a HELOC, I don't start with the products. I start with the money, and specifically with one question: is this money already committed, or is it still just a plan? That single distinction does more work than any feature comparison, and most articles on this topic skip right past it.
If the money is effectively already spent, meaning you have a firm purchase under contract, a closing date on the calendar, and a down payment you must produce on a specific day, then you're dealing with a defined, finite need. You know the number and you know the deadline. That's bridge loan territory. The need is not going to drift, so you don't need the open-ended flexibility of a line of credit. You need a clean way to cover a known amount for a short, known window.
If the money is not yet spent, meaning you have an idea but nothing finite, no signed contract, no firm date, or a gap you're not even sure will materialize, then a HELOC usually wins. You only pay interest on what you actually draw. If the gap turns out smaller than you feared, or never opens at all because the timing lines up, you have not paid to borrow money you did not use. The HELOC lets the uncertainty resolve on its own schedule instead of forcing you to commit to a fixed loan around a number you're guessing at.
Notice what is doing the work here. That's not the interest rate, at least not first. It is the shape of the need. A finite, committed, soon-to-close need points to a bridge loan. An uncertain, open-ended, or may-not-happen need points to a HELOC. Get that right and the rest of the comparison falls into place. Get it wrong and you can pick the technically cheaper product for the wrong situation and still end up worse off.
Once the timing question is settled, I work through four more things with a borrower. First, how much do you actually plan to borrow. Second, what is the money for, which is the timing question we just walked. Third, how much do you still owe on your first mortgage. And fourth, what other debt are you carrying on credit cards, auto loans, or anything else. That last one matters more than people expect, because a borrower will often ask about funding a move without mentioning the balances that should shape the whole plan.
The reason to lay all four side by side is that the real question is almost never whether to borrow a given amount in isolation. The real question is, given your full picture, what structure leaves you with the funds you need, costs you the least every month, and has you paying the least interest over the time you actually carry the balance. The product that answers that question comes out of the numbers. That's never the other way around. You don't pick the product and then justify it. You run the picture and let it pick.
Walking through a concrete picture makes the trade-off real. Take a homeowner with a current home worth about $500,000 and a first mortgage balance of $300,000. That leaves roughly $200,000 of equity on paper, though no lender will let you borrow all of it. They have found a new home and need $60,000 to cover the down payment, and they expect their current home to sell within a few months.
In this case the need is finite and committed. There is a purchase, a date, and a known number. The $60,000 ends when the current home sells and the proceeds clear. A bridge loan fits the shape of that need cleanly: it covers a specific amount for a short window and is repaid by the sale. The borrower is not borrowing against an uncertainty, so the open-ended flexibility of a line of credit would be flexibility they pay for and never use.
Now change one fact. Suppose the same homeowner is not sure they need the full $60,000, because they may be able to negotiate a longer closing on the new home or a rent-back from their buyer, and the real gap might turn out to be $15,000 or even nothing. Now the need is uncertain. A HELOC lets them open a line, draw only the $15,000 if and when the gap actually opens, and pay interest only on that smaller amount for the short time they hold it. If the gap never materializes, they have paid almost nothing to have had the option ready. The dollars look the same on the surface; the right structure flips entirely based on how certain the need is.
There is a refinement to the rule that earns its own paragraph, because the clean version misses it. Imagine you have a $600,000 first mortgage and you only need to pull $30,000. Even if that $30,000 is firmly committed, a line of credit often still makes more sense than any structure that disturbs the first mortgage, because reworking a $600,000 loan to reach a small slice of equity is rarely worth the cost. The larger the amount you need relative to your first mortgage, the more the math tips toward a lump sum like a bridge loan. The smaller the slice, the more a line of credit wins, almost regardless of how committed the money is. So the honest rule is not just committed-means-bridge and uncertain-means-HELOC. That's that, with an exception for small draws against large balances. Real decisions turn on the axis and the exceptions together.
Once you know which shape of need you're in, compare the two on the dimensions that actually move money. The first is interest. A HELOC is typically variable, so the rate can rise or fall while you hold the balance. A bridge loan is short enough that its rate matters less than its fees, but those fees, including origination and any accrued interest, can be meaningful precisely because the loan is brief. You're paying for speed and certainty over a short window, and that has a price.
The second dimension is payment shock, which is the month-over-month jump in what you're required to pay. This is the number that actually changes how your next year feels. A HELOC with a small draw can keep that jump modest because you're servicing interest only on what you used. A bridge loan layered on top of two mortgages, even briefly, can spike your required outlay until the sale closes. Whichever option increases your monthly obligation the least, while keeping your total interest down, is usually the one that fits.
The third dimension is the one nobody likes to discuss, which is what happens if the plan slips. With a bridge loan, the risk is a sale that doesn't close on schedule, leaving you carrying more debt than planned for longer than planned. With a HELOC, the risk is a variable rate climbing while you hold a balance you expected to clear quickly. Both risks are manageable, but only if you name them out loud before you sign. A relationship with your lender that was built before the bad news is what lets you actually hear the bad news and work through it, instead of treating a change in the plan as a betrayal.
Interest on home equity borrowing is not automatically deductible, and the rules are narrower than many homeowners assume. Under the Tax Cuts and Jobs Act, for homes purchased after December 15, 2017, mortgage interest is generally deductible only on debt used to buy, build, or substantially improve the home that secures the loan, and only up to the applicable principal limits. Borrowing against your equity to cover a down payment or to consolidate other debt doesn't necessarily make the interest deductible. The Internal Revenue Service lays out the specifics in its guidance on home mortgage interest, and a tax professional can tell you how the rules apply to your situation. This is general information, not tax advice.
Here is where most bridge-versus-HELOC comparisons go quiet, and that's the part I care about most. A lot of homeowners keep their debts in separate mental buckets: this is my mortgage, this is my car payment, these are my credit cards. Managed separately, each one feels manageable. Looked at together, the total monthly cash leaving the house is the number that actually shapes your next few years. The financing you pick for a move should be chosen against that whole picture, not against the down payment gap alone.
Suppose the homeowner from our earlier example, the one with the $500,000 home and the $300,000 first mortgage, is also carrying $35,000 in credit card balances at rates far higher than any mortgage product. Now the question is no longer only how to cover a down payment. That's whether the equity that's about to free up should also retire some of that expensive revolving debt while you're restructuring anyway. That's the full-picture thinking that separates a financing decision from a transaction. The down payment gap is the reason you called, but it may not be the most expensive problem on the table.
This is exactly why I ask about every balance, not just the one tied to the move. When AmeriSave looks at a borrower's situation, the goal is to see the total cost of all the debt together and find the structure that lowers the most expensive money first. Sometimes a HELOC covers the move and nothing else. Sometimes the right answer is a cash-out refinance that handles the down payment and clears the credit cards in one stroke, turning four or five payments into one and freeing up real money every month. You cannot know which until the full picture is on the table.
The freedom that comes out of getting this right is underrated. When a restructuring lowers your required monthly outlay, you get to decide what to do with the difference. You can put it toward the mortgage and pay the home off faster, or set it aside as a rainy day reserve and keep making your standard payment. Either way, money that was locked inside a stack of separate obligations becomes money you control. That's a far more durable win than shaving a fraction of a point off a single rate.
You don't have to arrive at the answer alone, and you should be wary of any process that expects you to. The job of a good loan officer is not to sell you the product that's easiest to close. That's to understand why you're on the phone in the first place, then narrow the field to the structure that fits. The first thing a lender should do is get to know your situation, not figure out the fastest path to a signed application.
Done well, that narrowing is close to mechanical once the inputs are in. Take the four variables we walked earlier, layer in your other debt, and add what your current home is likely to sell for, and the field of sensible options shrinks fast. Technology helps here. At AmeriSave, the same logic that powers our pricing tools looks across the available programs and rate combinations against a borrower's full debt picture to surface the option that saves the most each month, rather than leaving a loan officer to eyeball it from a static rate sheet. The automation does the heavy comparison; the human judgment makes sure the recommendation actually fits your life. Both matter, and neither replaces the other.
What you should expect from that process is straight talk. A lender who is in your corner will tell you when a bridge loan is overkill for a small, uncertain gap, and will tell you when a HELOC is the wrong tool for a large, committed need with a firm clock on it. The enhancements AmeriSave continues to build are aimed at making that comparison faster and clearer, but the standard doesn't change: the recommendation has to be the one your numbers support, even when that's not the one you walked in expecting. If a lender cannot explain why their suggestion beats the alternative in plain terms, keep asking until they can.
Bridge loans and HELOCs are not the only paths across a timing gap, and a good lender puts the alternatives on the table rather than steering you toward whatever is easiest to sell. A cash-out refinance pulls equity out by replacing your first mortgage with a larger one, which can make sense when the amount is large and you would benefit from resetting the whole loan anyway. A home delivers a fixed lump sum at a fixed rate, which suits a committed need where you want payment certainty rather than a variable line. And in some moves, a longer closing timeline or a rent-back agreement with your buyer can shrink or erase the gap entirely, so you borrow less or nothing at all.
The point of naming these is not to add complexity. That's to make sure the choice between a bridge loan and a HELOC is a real choice and not a default. When AmeriSave looks at a borrower's situation, the goal is to find the structure that fits the actual need, even when that structure is one the borrower had not asked about. The best outcome is the one that costs you the least to get where you're going, and sometimes that means a path you did not walk in expecting.
A bridge loan and a HELOC are not interchangeable, and the choice between them is simpler than the product brochures make it sound. Start with the shape of the need. If the money is committed, the amount is known, and the gap will close soon, a bridge loan fits. If the need is uncertain, open-ended, or small relative to your first mortgage, a line of credit usually wins because you only pay for what you draw. Then run your full picture, including your other debt, and let the numbers pick the product rather than picking it first and working backward. If you want help modeling both paths against your actual situation, AmeriSave can walk through the math with you and show you which one limits your payment shock and your total interest. The right answer is the one your numbers point to, and that's worth finding before you commit.
Jon brings extensive experience in loan origination, sales leadership, and operations to AmeriSave, based in Waikiki, HI. Starting as a Loan Originator, he was promoted to Manager after 13 months and to VP eight months later, eventually managing 330 direct reports and establishing AmeriSave's Spanish lending channel. Married with three children, he specializes in transparent, technology-enabled lending that prioritizes client relationships and consumer empowerment.
A bridge loan is short-term financing, usually lasting under a year, that gives you a lump sum to cover a defined gap, most often a down payment, and is repaid when your current home sells. A HELOC is revolving credit you can draw from repeatedly during the draw period, paying interest only on what you actually use.
The practical difference is shape and duration. A bridge loan is built to disappear quickly once a known event, your home sale, pays it off. A HELOC is built to stay open and flexible, which is why it suits uncertain or open-ended needs. The Consumer Financial Protection Bureau describes a HELOC as a revolving line secured by your home, distinct from a one-time lump-sum loan, which is the core structural contrast with a bridge loan.
Picture a homeowner who needs to cover a $60,000 down payment for a few months until their current home sells, versus one who might need only $15,000 and is not even sure the gap will open.
For the first, a bridge loan can be the cleaner cost, because the need is fixed and short and the loan is repaid by the sale. For the second, a HELOC is usually cheaper, because interest accrues only on the smaller amount actually drawn, and only for as long as that's held. There is no single cheaper product. Bridge loans tend to front-load cost in fees and accrued interest over a short term, while HELOCs typically carry a variable rate that applies only to your drawn balance, per Consumer Financial Protection Bureau guidance on home equity lines. The cheaper option is the one whose cost structure matches the shape of your need.
Most HELOCs carry a variable interest rate, which means the rate, and your minimum payment, can change over time as an underlying index moves. Some lenders offer fixed-rate draw options on a portion of the balance.
The most common situation where this matters is a borrower who plans to hold a balance for several years rather than clearing it quickly. The Consumer Financial Protection Bureau notes that HELOC rates are commonly variable and tied to an index plus a margin, so a borrower carrying a long-term balance should plan for the payment to move. If you expect to repay quickly, the variability matters far less, which is part of why a HELOC pairs well with short, uncertain gaps in a move.
Yes. A HELOC on your current home can supply the down payment for a new home before your existing one sells, and that's one of its common uses in a buy-and-sell move. You draw what you need, then repay the line when your current home closes.
The trade-off versus a bridge loan is flexibility against structure. A HELOC lets you draw only the portion of the gap that actually opens, which protects you if the gap turns out smaller than feared. The caution is that a HELOC is secured by the home you're about to sell, so you'll want the line in place before you list, since lenders are generally reluctant to open a new line on a home that's actively on the market. Planning the sequence early, with your lender, is what keeps this path clean.
Not automatically. Under the Tax Cuts and Jobs Act, for homes purchased after December 15, 2017, mortgage interest is generally deductible only on debt used to buy, build, or substantially improve the home securing the loan, and only within the applicable principal limits. The most common point of confusion is using equity for something other than the securing home. If you draw on a HELOC to cover a down payment on a different property, or to consolidate unrelated debt, that interest may not qualify for the deduction even though the loan is secured by your home. The Internal Revenue Service sets out the buy-build-or-substantially-improve test and the principal limits in its home mortgage interest guidance. Because the application depends on your specific facts, confirm the treatment with a tax professional before you count on a deduction.
A delayed sale is the central risk of a bridge loan. Because the loan is designed to be repaid by your home sale, a stalled sale can leave you carrying your old mortgage, your new mortgage, and the bridge loan at the same time until the property closes. This is why the exit matters more than the rate on a bridge loan. Before signing, a careful lender will walk through what happens if the sale takes longer than expected, including how long the bridge loan term runs and what your combined monthly obligations would be in that stretch. That stress test is the difference between a manageable delay and a genuine cash crunch. If a delayed sale is a real possibility in your market, a HELOC, drawn only as needed, can carry less of this particular risk because you're not committed to a fixed lump sum on a fixed clock.
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