You can buy a house before selling your current one four main ways: a contingent offer, a same-day tandem closing, a HELOC or bridge loan on your current home for the down payment, or savings or a documented gift, then a recast after the sale. Until your home sells, plan on the lender counting both payments, so run your debt-to-income with both before you shop. If the down payment depends on the sale, keep the offer contingent.
Example terms: a $427,500 Conventional 30-year fixed loan (5% down on a $450,000 purchase) at 7.490% interest, 7.880% APR, is repaid in 360 monthly payments of $2,986.22 for principal and interest. Payments do not include taxes and insurance premiums, so the actual payment obligation will be greater. Monthly mortgage insurance is added until it is removed. Includes 0.026% in discount points ($111). Purchase of a $450,000 single-family primary residence in Chesterfield County, Virginia; 740 credit score; 30-day rate lock; debt-to-income under 43%. Loan amounts are base loans; where an upfront FHA premium or VA funding fee is financed, it is added on top and the payment is figured on the total. Payments are principal and interest only. Terms as of November 9, 2026. Other numbers on this page are illustrations, not offers. Any rate shown on this site is an example. Rates may change or may not be available at the time of loan commitment or lock-in. More example terms and APR.
Home equity line figures on this page are illustrations of the math, not an offer of credit. Every line has its own rate (usually variable, so it can rise), fees, draw and repayment terms, and maximum rate. Get any lender's terms in writing before you apply.
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- Buy a house before selling your current one: start with one question
- Contingent offer: tying the purchase to your home sale
- Tandem closing: sell in the morning, buy in the afternoon
- How to buy a new house before selling: qualifying with both payments
- Bridge loan vs HELOC
- Mortgage recast after selling: lower the payment without refinancing
- Sell first, then bid like a cash-ready buyer
You found the next house, and the one you live in hasn’t sold. Maybe it isn’t even listed yet. Everybody in this spot asks me the same thing: do I risk two mortgages, or do I risk losing the house? You can buy a house before selling your current one, and there are several ways to do it. Each one trades safety for speed. Here’s how each works, what it does to your approval, and which one I’d pick in your shoes.
Buy a house before selling your current one: start with one question
Does your down payment depend on the money from the sale? That one answer decides the structure.
- Yes, I need the proceeds. Your choices are a contingent offer, a tandem closing, or getting your equity out first with a line of credit or a bridge loan.
- No, I have it another way. Savings, a documented gift or a paid-off home means you can buy with no contingency, sell later and recast.
Either way, the second question is whether you can qualify carrying both payments for a while. Most plans that fall apart fall apart there.
Here are the paths I use, starting with the safest:
| Path | How it works | Biggest risk | Fits when |
|---|---|---|---|
| Contingent offer | Your purchase depends on your home selling | Sellers like it least | The down payment depends on the sale |
| Tandem closing | Sell in the morning, buy in the afternoon | One slip moves both closings | Your buyer is solid and the dates line up |
| Line of credit on your current home | Draw the down payment from your own equity | Two payments until it sells | You plan ahead, or may keep the house |
| Bridge loan | Short-term loan against your current home | Costs more, and you may qualify on three payments | No line, and you will definitely sell |
| Savings or a gift now, recast later | Buy clean, sell later, pay the new loan down | Two payments until it sells | The down payment doesn’t depend on the sale |
Contingent offer: tying the purchase to your home sale
A contingent offer says you’ll buy their house if yours sells. If it doesn’t sell in time, the contract spells out how you get out; those terms are your agent’s department.
It’s the safest way to buy first, which is why it’s first on my list. If your down payment depends on the sale, keep it really contingent. I don’t want to set you up for failure.
The cost is the seller’s patience. Their closing now depends on a sale neither of you controls, and a clean buyer who closes on the seller’s schedule can beat a list-price offer that depends on a home sale. Two things decide whether yours gets taken:
- The market. This isn’t 2021. As of late 2026, my market is not a seller’s market, and with fewer houses drawing multiple offers, sellers have more reason to listen to a contingent one.
- The house. On a “like it” house, a contingent offer is fine; if the seller says no, there’s another house. On a “gotta have it” house with other offers, strong terms win, and a sale contingency is the opposite of strong terms. Here’s how I set up the financing side of an offer.
One combination makes no sense to me: paying for a bridge loan and still making the offer contingent. You pay for speed and then ask the seller to wait anyway.
Tandem closing: sell in the morning, buy in the afternoon
A tandem closing stacks both closings on the same day. Your sale closes in the morning, and its proceeds pay for the house you buy that afternoon.
It works when three things are true. Your buyer is ironclad: at a minimum, your agent calls your buyer’s lender and confirms the file is real, not just a letter. The money can move that fast: in Virginia the settlement agent generally pays out sale proceeds after the documents are recorded, within two business days of settlement, so ask the closing attorney or title company up front how your sale money will reach your purchase on time, and whether one office can handle both closings. And the numbers hold with room to spare.
Cash from a $400,000 sale for the afternoon closing
| Sale price | $400,000 | |
| × | What you net before the payoff (my rule of thumb) | 93% |
| = | Net before your payoff | $372,000 |
| − | Payoff on your current loan | $250,000 |
| = | Cash for the new purchase | $122,000 |
Selling costs, taxes, recording and any credit you give your own buyer come out first. From what’s left, cover the new closing’s cash to close (estimated high), then your reserves.
Hypothetical, rounded.
The risk is the chain. If your buyer’s loan slips a day, your purchase slips with it, and your seller may not wait. You’re also paying selling costs on one closing and buying costs on the other, so estimate both high. My cash to close page breaks down the buying side.
How to buy a new house before selling: qualifying with both payments
Until your home sells, plan on the lender counting its full payment on top of the new one. Some lenders will leave the old payment out once your home is under contract and your buyer is past the financing contingency, even before it closes. That’s lender and program specific, so ask before you count on it.
Qualifying with both payments on $12,500 a month of gross income
| New home payment, all in | $3,350 | |
| + | Current home payment | $2,000 |
| + | Line of credit, interest only on $34,000 drawn | $213 |
| + | Car payment | $400 |
| = | Monthly debts counted | $5,963 |
$5,963 divided by $12,500 is 47.7%. That’s under the roughly 50% ceiling I work with on conventional files, with almost no room for error.
Hypothetical: a $450,000 Chesterfield home with 5% down at an example rate of 6.5% on a 30-year fixed, the 2026 county tax rate of $0.89 per $100 applied to the price, $1,500 a year of insurance and mortgage insurance at a 740 score. The line is at an example rate of 7.5%.
Here’s the same household and the same new home four ways:
| What happened to the old home | Monthly debts counted | Debt-to-income |
|---|---|---|
| Listed, not sold | $5,963 | 47.7% |
| Under contract, buyer past financing (some lenders) | $3,963 | 31.7% |
| Kept and rented (Fannie Mae rules) | $4,163 | 33.3% |
| Sold first (no line needed) | $3,750 | 30.0% |
The rented row follows Fannie Mae’s rules since September 2, 2026: no lease is used, only market rent from an appraisal rent schedule or rent comparisons, and 75% of it can offset only the old home’s own payment (here $1,800 against $2,000, so $200 still counts), plus anyone with less than 12 months of landlord experience needs six months of that payment in reserves, $12,000 here. Other loan programs count it differently, and the keep-or-sell math is on my page about renting out your current home.
That row also only works if the move is genuine. You live in the new house, and the old one becomes the rental.
- New home payment
- Old home payment still counted
- Line of credit
- Car payment
Listed, not sold (47.7% debt-to-income) $5,963
Under contract, buyer past financing, some lenders (31.7%) $3,963
Kept and rented, Fannie Mae rules (33.3%) $4,163
Sold first, no line needed (30.0%) $3,750
Hypothetical, not a quote. $12,500 a month of gross income. A $450,000 Chesterfield home with 5% down at an example rate of 6.5% on a 30-year fixed, the 2026 county tax rate of $0.89 per $100 applied to the price, $1,500 a year of insurance and mortgage insurance at a 740 score. The line is interest only on $34,000 drawn, at an example rate of 7.5%.
See the numbers
| Part | Amount | |
|---|---|---|
| Listed, not sold (47.7% debt-to-income) | New home payment | $3,350 |
| Listed, not sold (47.7% debt-to-income) | Old home payment still counted | $2,000 |
| Listed, not sold (47.7% debt-to-income) | Line of credit | $213 |
| Listed, not sold (47.7% debt-to-income) | Car payment | $400 |
| Listed, not sold (47.7% debt-to-income) | Total | $5,963 |
| Under contract, buyer past financing, some lenders (31.7%) | New home payment | $3,350 |
| Under contract, buyer past financing, some lenders (31.7%) | Old home payment still counted | $0 |
| Under contract, buyer past financing, some lenders (31.7%) | Line of credit | $213 |
| Under contract, buyer past financing, some lenders (31.7%) | Car payment | $400 |
| Under contract, buyer past financing, some lenders (31.7%) | Total | $3,963 |
| Kept and rented, Fannie Mae rules (33.3%) | New home payment | $3,350 |
| Kept and rented, Fannie Mae rules (33.3%) | Old home payment still counted | $200 |
| Kept and rented, Fannie Mae rules (33.3%) | Line of credit | $213 |
| Kept and rented, Fannie Mae rules (33.3%) | Car payment | $400 |
| Kept and rented, Fannie Mae rules (33.3%) | Total | $4,163 |
| Sold first, no line needed (30.0%) | New home payment | $3,350 |
| Sold first, no line needed (30.0%) | Old home payment still counted | $0 |
| Sold first, no line needed (30.0%) | Line of credit | $0 |
| Sold first, no line needed (30.0%) | Car payment | $400 |
| Sold first, no line needed (30.0%) | Total | $3,750 |
My guardrails for a two-payment stretch: debt-to-income under 50%, a payment you’re at peace with, and about six months of savings behind you. Does that make sense? If the “listed, not sold” row doesn’t work for you, a non-contingent offer doesn’t either.
Bridge loan vs HELOC
Both turn equity in your current home into a down payment before it sells. The difference is cost and fit.
A HELOC is a line of credit against the home you live in: you draw what you need, pay interest just on what you’ve drawn, and your first mortgage and its rate stay untouched. The full playbook is on my page about using a HELOC to buy a house.
A bridge loan is short-term money against your current home for the gap between buying and selling. Here’s the problem in real numbers.
A bridge loan on a $300,000 home with $220,000 owed
| Home value | $300,000 | |
| × | Bridge limit (example) | 80% |
| = | Most you can borrow against it | $240,000 |
| − | What you still owe | $220,000 |
| = | Cash for the next purchase | $20,000 |
Before the bridge’s own costs. That’s a minimum down payment and little else.
Hypothetical. Bridge terms vary by lender.
Worse, depending on how the bridge is set up, you may have to qualify with the old home’s mortgage, the bridge and the new mortgage all at once. In a setup like that, three payments can put the ratio near 70%, and my advice is simple: sell first.
| Compare | HELOC on your current home | Bridge loan |
|---|---|---|
| Cost | Usually the cheaper of the two, in my experience | You pay for convenience |
| Payment | Based on what you’ve drawn; on the lines I see, interest only during the draw at a variable rate | Set by the lender’s terms |
| In your debt-to-income | The payment on what you’ve drawn, not the whole line | Yes, with everything else |
| Best fit | You plan ahead, and may keep the house | No line, and you will definitely sell |
Two rules on the line of credit, and neither one bends:
- Timing. Open it while the house is truly your primary residence and before you’re under contract on the next home. My house rule: no touring homes until the line has closed. This isn’t “go find the house, then open the line.”
- Truth. When the application asks what the money is for, tell the truth: the down payment on your next home. If the lender asks whether you plan to sell, tell them that too; some lenders won’t open a line on a home that’s about to be listed. If you might rent the house out later, read what the agreement says about that before you sign.
If the purchase falls through, keep the line open. It’s better to have it and not need it than need it and not have it. One thing to ask up front: selling the house closes the line, and some lines charge a fee if that happens in the first couple of years.
Mortgage recast after selling: lower the payment without refinancing
If you can buy without the sale, you can skip the contingency entirely: buy clean, sell the old home later, put the proceeds against the new loan, and recast.
A recast is a big principal payment, then the servicer refigures your payment over the months you have left. Your rate stays, your end date stays, and your payment drops. A refinance replaces your loan. A recast keeps it.
Recasting a $400,000 loan after the old home sells
| Balance after six payments | $397,800 | |
| − | Sale proceeds paid to principal | $150,000 |
| = | New balance | $247,800 |
Principal and interest before the recast: $2,528 a month. After it, at the same 6.5% and the same end date: $1,575, about $953 less.
Hypothetical: a $400,000 loan at an example rate of 6.5% on a 30-year fixed. Your servicer sets the recast rules and fee.
Send the same $150,000 without a recast and your payment stays $2,528. You’d just pay the loan off in about 11 to 12 more years instead of 29 and a half. Both are fine. The recast is the one that frees up monthly cash.
If a line of credit on the old home covered your down payment, it gets paid off at the sale’s closing table first, since that house secures it. And before you build a plan around a recast, ask the servicer three things: whether your loan can be recast at all, the minimum paydown, and the fee. Not every loan or servicer offers one, so ask before you pick the loan program. The recast is the whole plan.
Tyler’s take
The cleanest buy-before-you-sell I see doesn’t need the sale at all: savings or a documented gift covers the down payment, the offer goes in clean, and the recast brings the payment back down later.
Sell first, then bid like a cash-ready buyer
If you’d rather never carry two payments, sell first. Then do this, and within about ten days of your sale closing you can bid with no sale contingency:
- Get the signed seller-side closing disclosure from your sale and wait for the proceeds to land.
- A day or two later, pay off your credit cards from that same account, so one statement shows the money in and out.
- Leave car and personal loans alone until the next home closes.
- Don’t close the cards you paid off.
- Get a zero-balance letter from each card company and your bank’s transaction history.
- I order a rapid rescore on the accounts that matter, if it will cross a pricing tier. My credit score page explains when that’s worth it.
Debts cleared and cash in hand, your offer looks like a buyer with nothing to wait on. The cost is finding somewhere to live in between.
Whichever path you pick, pick it before you fall in love with a house. Run the payment with both mortgages, find out what your line or your sale really produces, and choose the structure you could live with if the old house took three extra months to sell.
Questions people ask me about this
What if my house is slow to sell, or the sale falls through?
With a sale contingency, your contract spells out what happens next, and your agent owns those terms. Without one, you close anyway and carry both payments until it sells, which is exactly why I want you qualified on both before you write the offer. Leave your reserves alone for this.
Can I push back my closing date if my house hasn’t sold?
Only if the seller agrees, in writing, through the agents. On the loan side, a later date can mean extending your rate lock, and extensions cost money, so set the dates before you lock. Here’s how rate locks and extensions work.
Can I rent out my old house if it doesn’t sell?
If you qualified carrying both payments, renting it is your call. Read the agreement on any line of credit open on that house first, and run the rent against the payment honestly, because rent follows the market, not your mortgage.
Can a gift from family let me buy before I sell?
Yes. A documented gift for the down payment means the purchase doesn’t depend on your sale, so you can offer with no contingency, sell later and recast. It has to be a real gift with a paper trail, not a loan you’ll repay; here’s how gift funds work.
Sources
Examples on this page are hypothetical illustrations, rounded for teaching. They are not a quote or an offer to lend. Rates may change or may not be available at the time of loan commitment or lock-in. For example terms with the annual percentage rate (APR), see example terms and APR.