Chicken, meet egg. If you own a home and want a different one, you'll hit this fork within about five minutes of the first conversation: do we sell what we have first, or find the next place first? Realtors have opinions. Your brother-in-law has opinions. The honest answer is that both work, both carry a specific kind of risk, and the right pick depends on four things about you and one thing about your market. Let's take the drama out of it.
Selling first: certainty, with a side of homelessness
You list, you sell, you know your exact equity to the dollar, and you walk into the next purchase as the strongest kind of buyer—no sale condition, no "we'll see." Lenders love it too: with the old mortgage gone, your qualifying is clean and simple.
The upside
- You know your real budget. Not "the realtor thinks we'll get about…"—the actual number after commissions, legal fees and payout.
- Your offer on the next place is firm and clean. In a competitive market that beats a higher offer with a sale condition more often than you'd think.
- No bridge financing, no carrying two mortgages, no double property tax and utilities.
The downside
- The gap. If you haven't found the next place by your possession date, you're moving twice—or into your parents' basement with a dog and three kids.
- Pressure buying. A ticking clock is how people overpay for a house they don't love.
How to blunt it: negotiate a long possession (60–90 days is common, longer is possible), or a rent-back where you stay in the sold home as a tenant for a few weeks after closing. Start house-hunting the day you list, not the day you sell, with a pre-approval already in hand.
Buying first: the house you want, with a side of math
You find the one. You buy it. You move once, on your schedule, into a place you chose rather than settled for. Then you sell the old house without living in a staged museum.
The upside
- One move, no gap, no compromise on the house.
- Selling an empty, staged home is easier and often gets a better price.
The downside
- You need to qualify carrying both mortgages until the old one sells—unless you have a firm sale, in which case most lenders drop the old payment from your ratios. No firm sale means both count, and for a lot of households that's the end of the conversation.
- You need the down payment before your equity is free. That's savings, a gift, or a HELOC on the current home (which has to be set up before you list—lenders won't open one on a house that's for sale). Once the old home has a firm sale, bridge financing covers the overlap.
- If the old house doesn't sell fast, you're carrying two of everything and possibly cutting the price.
The middle paths
This isn't actually binary. Most successful move-ups use one of these:
- Offer conditional on the sale of your home. You make the offer on the new place with a condition that your current home sells within, say, 30–45 days. In a balanced or slower market sellers accept these regularly, often with an "escape clause" letting them keep showing. In a hot market they're a hard sell—but a strong price and a pre-approved, pre-listed buyer can still win one.
- List first, buy on a matched timeline. List your home, and the moment you have a firm sale, write a firm offer on your target with possession dates lined up a week or two apart. Bridge financing covers the overlap, and the "gap" is a few days, not a few months.
- Long close on the purchase. If you find the dream house first, ask for a 90-day close. It buys you time to sell without the two-mortgage squeeze.
- Buy first, hold the old one as a rental. Sometimes the right answer is not selling at all. It has its own qualifying rules (rental income offsets, 20% down on the new place in many cases) and it's a genuine strategy, not a fallback—we run it as a separate scenario.
The five-question test
- How fast are homes like yours selling? Under 30 days on average in your neighbourhood, buy-first gets much safer. Over 60, sell-first.
- Can you qualify carrying both mortgages, even briefly? If yes, you have every option. If no, you're selling first or using a sale condition—full stop. A ten-minute call tells you which.
- Where's the down payment coming from before the sale closes? Savings or a HELOC-in-place means buy-first is possible. If it's all equity, you need a firm sale plus a bridge.
- How specific is the house you want? "A four-bedroom in a couple of neighbourhoods" is easy to find on a sell-first clock. "The one house on that one street" means buy first and make the rest work.
- How do you handle uncertainty? Honestly. Some households would rather move twice than carry two mortgages for a month. Others would rather carry two mortgages for six months than pack a box twice. Neither is wrong.
What we actually do for you
Before you list or write anything, we build two pre-approvals: one assuming the old mortgage is gone, one assuming you're carrying both. You'll know your ceiling under each, whether a bridge is available to you, whether your current mortgage ports to the new place, and what a HELOC on the current home could do. Then the sell-first-or-buy-first decision stops being philosophical and becomes a spreadsheet with your name on it.
Questions we get
Will a seller take an offer conditional on the sale of my home?
In a balanced market, often yes—especially with a short condition period, a strong price and proof your home is already listed and priced right. In a hot market, expect resistance; the answer is usually to get a firm sale first and move fast.
How long can I get bridge financing for?
Most lenders bridge for up to 30–90 days against a firm sale. It's interest-only at prime plus a bit, plus a setup fee—cheap for what it does. Details in Bridge Financing 101.
Can I use a HELOC as the down payment on the next house?
Yes, if it's already in place. It's borrowed money, so the payment counts in your ratios, and the lender will want to see the HELOC paid down or closed once the old home sells.
Does my current mortgage move with me?
Maybe. Most fixed mortgages port; timing windows are strict. See Porting Your Mortgage.
What if I'm moving to something smaller instead?
The same fork applies, with easier math—you'll likely need little or no mortgage. Read Downsizing: What Happens to Your Mortgage.
The short version: sell first when the market is slow, the budget is tight or you'd rather move twice than sweat. Buy first when homes like yours sell fast, you can carry two payments briefly, and the house matters more than the timeline. Or take the middle path and get both. Whichever way you lean, get the two pre-approvals first—it's free, and it turns this from a debate into a plan.
