How Bridge Financing Works, Step by Step

Key takeaways

A bridge loan is short-term financing secured by the departing residence, repaid from sale proceeds that are net of excise tax: roughly 1.65% of the price where the 0.50% local REET applies (RCW 82.46.010 and 82.46.035).
On a $727,359 sale as of August 2026 that is about $12,000 gone before the payoff is calculated.
The term is set against a realistic marketing time. Washington ranged from 33 days in Bremerton to 71 in Walla Walla as of August 2026 (Zillow Research).
Days to pending rose in 13 of 17 Washington metros over the year, so last year's figure is the wrong input.
The payment counts in your debt ratio while outstanding, alongside both mortgages. It creates access to equity, not income.
Washington charges $0 in state tax to record the instrument (RCW 82.45.060 taxes sales, not deeds of trust), so the cost sits entirely at the exit.

Program and regulatory figures verified September 19, 2026. Details change; confirm your scenario with us.

By Mike Certo, Cornerstone First Mortgage · NMLS #260555 · Updated September 19, 2026

Bridge financing is simple in outline and easy to misuse. In Washington the misuse almost always starts with the sale price instead of the net.

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What it is

Short-term financing secured by the home you are leaving, sized against the equity in it. The proceeds go toward the down payment and closing costs on the new house. When the departing home sells, the bridge is repaid from the proceeds at that closing.

It solves a sequencing problem: the equity exists, but it is locked inside a house you have not sold yet, and the new purchase needs it now.

How repayment works, and the Washington adjustment

Repayment is tied to the sale, so two inputs matter: how long the sale takes, and how much it produces.

On timing, Washington's range is wide and it moved this year. Bremerton 33 days, Seattle and Mount Vernon 39, Olympia 42, Spokane 50, Yakima 59, Moses Lake 68, Walla Walla 71. Days to pending rose year over year in thirteen of the seventeen metros with comparable data.

On amount, the proceeds are net of excise tax before anything else. State REET is 1.10% on the portion at or below $525,000 and 1.28% above that through December 31, 2026, plus local REET of up to 0.50%. On a $727,359 sale that is roughly $12,000 gone before the payoff is calculated.

A bridge sized against the gross sale price is sized against money that does not arrive. See the net proceeds page.

How underwriting sees it

As another obligation. While the bridge is outstanding you may be carrying the departing home's mortgage, the bridge payment and the new mortgage at once, and all three sit in your debt-to-income ratio. Underwriting is not moved by the fact that two of them are temporary, and it does not adjust for what the sale will net.

Bridge financing converts illiquid equity into usable funds. It does not add income.

Where it goes wrong

The sale outlasts the term. The most common failure, and the risk is rising in most of Washington.
The proceeds fall short of the payoff. The Washington-specific version, caused by sizing against gross rather than net.
The file was already failing the two-payment test. Bridge financing was asked to fix an income problem it cannot fix.
The loan was sized to the maximum available rather than the actual need, which raises the carrying obligation for no benefit.

When something else fits better

If income supports both payments, carrying both and recasting is simpler and cheaper, and it records nothing. If the overlap is likely to be long, as in eastern and coastal Washington, converting the departing home to a rental removes the timing pressure and defers the excise tax. Bridge financing is strongest for a short, well-understood gap with solid equity behind it.

Compare on the structures page, and see the cost detail on line versus term.

Frequently asked questions

What is a bridge loan?

Short-term financing secured by the home you are selling, used to access that equity before the sale closes so it can go toward the next purchase. It is repaid from the sale proceeds when the departing home closes.

Does a bridge loan help me qualify for a bigger mortgage?

No. It converts equity into usable funds but adds an obligation to your debt-to-income ratio rather than adding income. If income does not support the combined payments, additional borrowing makes the ratio worse.

How should a bridge loan be sized in Washington?

Against net proceeds, conservatively. Excise tax of roughly 1.65% of the sale price comes out before the existing mortgage payoff, commissions and closing costs, and the bridge is repaid from what survives all of that.

How long should a Washington bridge loan term be?

Longer than your market's current marketing time plus a closing period. For the month ending August 2026 that ranged from 33 days in Bremerton to 71 in Walla Walla, and thirteen of seventeen metros were slower than a year earlier, so use the current figure.

Mike Certo · NMLS #260555 · Cornerstone First Mortgage NMLS #173855 · Equal Housing Lender. Educational content about financing, not a loan commitment and not legal, tax, or real estate advice. Excise tax treatment, rent-cap exemptions, and county relief thresholds change and depend on your facts; your closing agent, your county assessor, your CPA or a Washington attorney, and your real estate agent each handle their own part. Loans are subject to borrower and property qualification.