Seattle Bridge Loan Options: How to Buy Before You Sell

A Seattle bridge loan, or a similar strategy, lets you buy your next home before your current one sells by tapping the equity you already have. Most King County move-up buyers choose between a home equity line of credit, a short-term bridge loan, qualifying for both payments, or a sale-contingent offer. The right choice depends on your equity, your income, and the market you are buying in.

I have spent more than 25 years closing loans around Puget Sound, and I do not sell, I educate. Buying before you sell is one of the most common questions I get from homeowners who have built real equity in Seattle, Shoreline, or Renton and want to move up to the Eastside, or simply to more space. This guide walks through every option in plain language. For the bigger picture on King County loans and costs, start with my King County home loans hub.

Why King County Move-Up Buyers Need a Bridge Plan

Most move-up buyers have the same problem: their down payment is tied up in the house they live in. A Seattle homeowner who bought ten years ago may have hundreds of thousands of dollars in equity but not enough cash in the bank for 20% down on the next home.

That leaves three basic choices. Sell first and move twice. Make an offer that depends on selling your current home. Or find a way to use your equity before the sale closes. The third choice is what a bridge strategy does.

The 2026 market changes the math a little. According to my King County housing market 2026 report, the Eastside had about 4.8 months of supply and Seattle about 4.5 at the end of August, the most balanced conditions in years. In those markets, more sellers will at least consider an offer that depends on your home selling. In tighter areas of South and North King County, a non-contingent offer still carries more weight.

Your Options for Buying Before You Sell in Seattle

Some real estate and lending companies also offer packaged buy-before-you-sell or guaranteed-offer programs. They can be convenient, but the fees and terms vary a lot, so read the cost carefully and compare it with the options above. Every loan option is subject to credit approval and a full loan estimate.

How Lenders Count Your Current Seattle Home’s Payment

This is the part that decides which option works, and most buyers do not know it. When you buy a new home before your current one closes, the lender generally has to count both housing payments in your debt-to-income ratio (DTI, the share of your gross monthly income that goes to debts).

There is an important exception. Under Fannie Mae’s guidelines, the lender does not have to count your current home’s payment if you provide an executed sales contract for it and confirmation that the buyer’s financing contingency has been cleared. In practice, that means if your current home is already under contract and the buyer’s loan is solid, you may qualify for the new home as if the old payment were gone. The source is the Fannie Mae Selling Guide, B3-6-06.

That rule shapes the strategy:

• If your income can carry both payments, you have the most flexibility. You can buy first, then sell.
• If it cannot, the timing matters. Getting your current home under contract, with the buyer’s financing contingency cleared, before you close on the new one can make the numbers work.
• If you plan to keep your current home as a rental, rental income rules apply instead, and the documentation is different.

HELOC vs Bridge Loan: Which Fits a Seattle Move-Up?

A HELOC (home equity line of credit) is a revolving line secured by your current home. You draw what you need for the new down payment, then pay it off from the sale proceeds. Two timing points matter. Many lenders will not open a HELOC on a home that is already listed for sale, so it usually has to be set up before you list. And the HELOC’s payment counts in your qualifying ratios on the new loan.

A bridge loan is a short-term loan secured by your current home, built to be repaid when it sells. It can provide a larger amount than some HELOCs and is designed for exactly this situation, but it typically comes with its own fees and a short repayment window. Availability and terms vary by lender, so ask early.

For many King County owners with substantial equity and steady income, a HELOC opened before listing is the simpler path. For owners who need more of their equity quickly, or who are already listed, a bridge loan may fit better. I am glad to walk through the trade-offs for your situation. If you are deciding between a HELOC and a cash-out refinance more broadly, my Seattle refinance guide explains the difference.

What Your Current King County Home Will Net When It Sells

A bridge plan only works if you know what your current home will net. Here is an illustrative example. Say you are selling a Renton home for $900,000 and owe $400,000. Washington’s excise tax on that sale is about $15,075, including the 0.50% local rate. Subtract commissions and other selling costs, which you negotiate, and what remains is the equity available to pay off a HELOC or bridge loan and fund your next purchase.

The excise tax is just one piece. My King County closing costs guide shows the full seller-side math, including how the tax rises on higher-priced homes.

Now say you are moving to a $1,450,000 home east of Lake Sammamish. With 20% down, about $290,000, your new loan would be about $1,160,000, above the $1,063,750 conforming limit, which makes it a jumbo loan. Putting down about $386,000 instead would keep it conforming. That is why the size of your equity matters so much on the Eastside. My jumbo home loan guide and the comparison of 10% vs 20% down on a jumbo loan cover those choices.

Recasting After Your Seattle Home Sells

If you buy first with a smaller down payment, a recast can help after your old home sells. With a recast, you make a lump-sum payment toward your new mortgage’s principal, and the lender recalculates your monthly payment over the remaining term. Your rate and term stay the same; the payment drops because the balance is lower.

Recasting is often available on conventional loans for a modest fee and a minimum lump sum, depending on the servicer. Government loans like FHA and VA generally cannot be recast, and jumbo loans vary by investor. If a recast is part of your plan, we confirm it is allowed before you choose a loan.

Buy-Before-You-Sell Checklist for King County Homeowners

Step 1: Estimate your equity

Get a realistic sale price from your agent and subtract your loan balance, excise tax, and selling costs.

Step 2: Run qualifying both ways

See whether your income can carry both payments, and what changes if your current home is under contract first.

Step 3: Choose your bridge before you list

If a HELOC is the plan, open it before your home goes on the market. If you need a bridge loan, line it up early.

Step 4: Count your other assets

Vested stock and retirement funds can sometimes cover a down payment. If you work in tech, my guide to RSU income and mortgage approval explains how stock compensation is treated.

Step 5: Coordinate the two closings

Your agent, escrow, and I line up the timeline: when you list, when you close on the new home, and whether a rent-back helps. If you are working with an agent, my page for real estate agents explains how I coordinate with them.

Step 6: Plan the recast

If you bought with a smaller down payment, decide in advance how much of the sale proceeds goes to a recast or to paying off the HELOC or bridge loan.

Frequently Asked Questions: Seattle Bridge Loan

Ready to Talk Through a Seattle Bridge Loan Plan?

Buying before you sell takes planning, but it can turn a stressful double move into one smooth transition. The key is knowing your equity, your qualifying numbers, and your timeline before you list. Let's connect to talk about your goals and map out the right path.

Keep exploring: King County home loans, Seattle home financing, closing costs in King County, jumbo home loans, and Keith Akada, Seattle mortgage broker at Fairway Independent Mortgage.