Here's the trap almost every move-up buyer walks into. You find the next house — the one you actually want — but all your money is locked inside the house you're living in now. You can't get to your equity until you sell, and you can't comfortably sell until you have somewhere to go. So a loan officer or realtor leans in and says, "No problem, we'll just get you a bridge loan." It sounds like the perfect fix. What almost nobody tells you: a bridge loan is one of the most expensive short-term loans in real estate — and a lot of the time, you don't actually need one.
Let me walk you through how a bridge loan really works, what it costs, who it genuinely fits, and the free alternative that gets you the same result without the price tag. That last part is the piece your loan officer has the least incentive to mention — so stick with me to the end.
How a bridge loan actually works
A bridge loan is a short-term loan that "bridges" the gap between buying your next home and selling your current one. It's usually secured against the house you already own — the one with all that trapped equity. The lender lets you borrow against that equity right now, you use the cash for the down payment on the new place, and when your old house finally sells, you pay the bridge loan off in full.
It's built to live for just a few months — usually six to twelve. It's not a long-term mortgage and it was never meant to be one. It's a temporary tool for a temporary problem: the window between two closings.
Why it costs so much — the three-payment squeeze
Here's why a bridge loan costs what it costs. Because it's short-term, fast, and the lender is betting your old house might not sell as quickly as you think, they price it accordingly. You're typically looking at a higher interest rate than a normal mortgage, plus origination fees and closing costs — on a loan you'll only keep for a few months.
And here's the part that really stings. For a stretch of time, you can end up carrying three payments at once: the mortgage on your old house, the new mortgage, and the bridge loan on top of both. That's a lot of money going out the door for a temporary convenience. The math only works if your old home sells quickly — and the whole reason you might need a bridge is that selling isn't guaranteed.
The bank-versus-you angle
Let me be clear-eyed with you here. I've been in this business since 2007 — before loan officers even needed a license — and I'll tell you straight: a bridge loan is a real product that genuinely helps in the right situation. It is not a scam. But it's a loan with fees and interest attached, which means somebody makes money when you take one out.
So when the fast, easy answer to "how do I buy before I sell" is always "get a bridge loan," you have to ask whether that's the best tool for you — or just the one that pays the person recommending it. There's usually a cheaper path, and it doesn't get pitched with the same enthusiasm.
The free alternative: contingencies and a pre-set HELOC
Instead of borrowing expensive short-term money to bridge the gap, you restructure the deal itself so the gap closes on its own. There are two versions, and both are legitimate, low-cost or no-cost ways to solve the exact same timing problem.
1. The sale contingency
You write your offer on the new house so it's contingent on your current home selling. That lines up both closings without carrying a separate loan. In a market where sellers will accept a contingent offer, this is often free — you're just structuring the paperwork so the two deals depend on each other. The trade-off is that a contingent offer is weaker in a bidding war, which is exactly why it doesn't fit every market.
2. The HELOC you set up before you list
The other version leans on a HELOC — a home equity line of credit — that you set up on your current home before you go shopping. A HELOC you already have in place pulls out your equity at a far lower cost than a bridge loan, and you only pay interest on what you actually use. The catch is timing: most lenders won't open a HELOC on a home that's already listed, so you have to set it up ahead of time. Plan early and this becomes your cheap bridge.
| Option | Typical cost | Best fit | Watch for |
|---|---|---|---|
| Bridge loan | Higher rate + origination & closing fees; risk of three payments | Hot market needing a strong, non-contingent offer; fast-selling home | Expensive if the old home is slow to sell |
| Sale contingency | Often free — just deal structure | Markets where sellers accept contingent offers | Weaker offer in a bidding war |
| Pre-set HELOC | Low — you only pay interest on what you draw | Buyers who plan ahead before listing | Must be opened before you list the home |
A bridge loan is renting a crane to lift you across a gap for a few weeks — fast and powerful, but you're paying by the day. A sale contingency just moves the two ledges closer so you can step across. And a pre-set HELOC is the ladder you already keep in the garage — cheap, ready, and yours. Same gap, wildly different price to cross it.
Who a bridge loan genuinely fits
A bridge loan can make real sense in a hot market where you need a strong, non-contingent offer to win the house and speed matters more than cost. It can fit if your current home is genuinely going to sell fast and you just need to cover a short window. Those are real situations — I'm not telling you to never use one.
But if you've got time, if you can structure a contingency, or if you set up a HELOC ahead of time, seriously question whether you need to pay for a bridge at all. Run the alternative first. Bridge loan terms vary by lender, so if you do go this route, compare the full cost — rate plus every fee — before you commit.
See how much equity you can actually move
Run the free affordability calculator to see your real numbers and how much of your equity you can move into the next home. Free, and I don't originate loans — so there's nothing being sold on the other end.
Open the Free Calculator →Want the full plain-English breakdown of the creative ways to buy before you sell — including the free alternative to a bridge loan? That's exactly what the creative financing guide is for.
Frequently asked questions
Related free resources: Affordability Calculator · creative financing guide · all calculators
Educational content only — not financial, mortgage, or legal advice, and not a loan offer or solicitation. Timothy George is the founder of Infinity Financial Mortgage Corporation and has been in the mortgage business since 2007; he is not a currently-licensed loan originator and does not originate loans. Bridge loans are a non-agency, short-term product — rates, fees, terms, and eligibility are set by each lender and vary widely; independent consumer information on bridge loans, HELOCs, and comparing loan costs is available from the Consumer Financial Protection Bureau (CFPB). Program terms, rates, and rules change over time and vary by lender — confirm the current terms and your specific situation with a currently-licensed professional before you act.