If you've been sitting in your current home thinking about trading up — more space, a better school boundary, a lot that isn't shared with three neighbors — there's a good chance one number has been stopping you cold: your mortgage rate. If you locked in somewhere in the 2s, 3s, or low 4s over the past several years, giving that up feels like giving up money. And in a real sense, it is. But "it costs more" and "it doesn't pencil out" are two different questions, and this fall on the Eastside is a good time to actually run the second one instead of guessing at it.
Here's where things stand today. Freddie Mac's weekly survey puts the 30-year fixed rate at 6.95% this week, up from 6.76% the week before and well above the 6.26% average from this time last year. Rates have been drifting higher, not lower, over the past month. At the same time, roughly three out of four mortgaged homeowners nationally are sitting on a rate below 6% — and survey data shows more than a third of them say they wouldn't give that rate up "for any reason." That's the lock-in effect in a single stat, and it's a big part of why move-up inventory has stayed tight even as overall supply has loosened.
Meanwhile, King County itself has shifted into more of a buyer's market than it's been in years. Inventory is sitting at about 4.1 months countywide, with roughly 8,300 active listings and the median sold price down close to 3-4% from a year ago, to around $845,000. That's a meaningfully different environment than the multiple-offer scramble of a few years back — which matters just as much to this conversation as your interest rate does.
When people talk themselves out of moving up, they're usually doing quick math in their head: old payment versus new payment, at a rate that's roughly double what they're used to. That comparison isn't wrong, but it's incomplete. It leaves out your equity, it leaves out what today's softer market means for negotiating the purchase price, and it leaves out what you're actually buying with that higher payment — because a bigger, better-located home isn't the same product as your current one.
Let's walk through an actual example, because the abstract version of this conversation is where most people get stuck.
Say you bought your current home in 2021 and locked in a rate around 3.25%. Your remaining balance is $410,000, and your principal-and-interest payment is roughly $1,784 a month. Your home has appreciated with the broader Eastside market and would likely sell today for around $750,000, which after payoff and typical selling costs (commissions, excise tax, minor repairs — figure 7-8% of the sale price) leaves you with something like $280,000 to $290,000 in usable equity.
Now say the home you actually want — more bedrooms, a better lot, a stronger school assignment — is priced around $1,050,000. Rolling your equity into a down payment, you'd finance roughly $770,000 at today's 6.95% rate. That's a principal-and-interest payment of about $5,100 a month — a jump of a little over $3,300 from where you are now.
That's the number that stops most people. But it's not the whole story, and it's worth pressure-testing in three ways before you decide it's a dealbreaker.
Step one: get your real equity number, not your guess. Most homeowners either underestimate or overestimate what their home is actually worth in today's market. Before you do anything else, get an honest, current valuation — not a Zillow estimate, an actual comparative analysis based on what's selling nearby right now. That number is the foundation for everything else.
Step two: get a real payment number from a lender, not an online calculator guess. Your rate depends on your credit, your down payment, and the loan program, and a lender can also tell you about temporary or permanent rate buydowns that some sellers and builders are offering right now to soften exactly this problem. The gap between "what I assume my payment would be" and "what a lender says it would actually be" is often smaller than people expect, especially with today's incentives on the table.
Step three: price the thing you're actually buying. A higher payment for the same house is a bad trade. A higher payment for two more bedrooms, a school boundary your kids will benefit from for a decade, or a lot where you're not staring into a neighbor's window is a different conversation. Try pricing it the other way: what would it cost you to rent that much additional space, or to move into that school district some other way? For a lot of move-up buyers, framed that way, the monthly delta looks less like a cost and more like a fair trade.
Step four: use the softer market to offset the rate. This is the part people skip. With King County sitting at roughly 4.1 months of inventory and prices down slightly from a year ago, buyers today have real room to negotiate — on price, on closing cost credits, on repairs — in a way that simply wasn't true two or three years ago. A well-negotiated $30,000 or $40,000 off the purchase price, or a seller-paid rate buydown, can meaningfully close the gap on that monthly payment jump. Run the four steps together, and "it doesn't pencil out" often turns into "it's closer than I thought" — sometimes into "it actually works."
None of this is a promise that trading up will always make sense right now — sometimes the math genuinely doesn't work, and that's a fine answer too. But deciding based on the headline rate alone, without running your specific numbers, means you might be ruling out a move that would actually work for your family. And there's a longer-term piece worth remembering: today's rate isn't necessarily permanent. Buyers who move now, at whatever rate is available, still have the option to refinance later if rates ease — subject, of course, to loan approval and program terms at that time. Waiting indefinitely for a "perfect" rate has its own cost, in missed opportunity and in however long you stay in a home that no longer fits.
It's also worth remembering that this cuts both ways on your side of the transaction. If you're locked into a low rate, there's a real chance your neighbors are too — which is part of why move-up inventory has stayed tighter than the rest of the market. Fewer people trading up means less competition for the homes that do come available, and sellers who are genuinely ready to move tend to be realistic about pricing in a market like this one.
Does this only work for people with a lot of equity? It helps, but it's not the whole equation. Buyers who bought more recently, or who refinanced along the way, may have less of a rate gap to overcome in the first place — sometimes the "sticker shock" is smaller than they assume once they actually run the numbers with a lender.
Is now really a good time, or should I wait for rates to drop? Nobody can predict rates with certainty, and waiting has its own cost: continued appreciation on the home you want to buy, and continued equity you're not putting to work. What you can control right now is negotiating leverage, and that leverage is real in today's market in a way it wasn't a couple of years ago.
Does this look different depending on where I'm moving? Yes, and this is worth saying clearly: county-wide numbers are a starting point, not the whole picture. Bellevue's top school boundaries behave differently than Sammamish, and Kirkland's waterfront pocket behaves differently than Bothell's more affordable stretches. Before you commit to a target price or a target neighborhood, it's worth reviewing the specific comparable sales for that street or that school assignment — not just the county average — since that's where the real negotiating room (or lack of it) actually shows up.
The rate jump from a locked-in 3% to today's high-6% range is real, and it's the right thing to take seriously. But "real" isn't the same as "disqualifying." Run your actual equity, get a real payment number from a lender, price what the new home actually buys you, and factor in the negotiating room a buyer's market gives you — and the math often looks different than the back-of-napkin version. If you've been putting off even having this conversation because you assumed the answer was no, I'd rather help you find out for certain than have you guess.
Reach out anytime to schedule a no-obligation strategy call, and we'll run your specific numbers together — your equity, your target neighborhood, and what today's market actually allows for on the negotiating side.