Buy Before You Sell: A Guide to the Knock Bridge Loan

What is the Knock Bridge Loan?

A bridge loan is a short-term loan secured by your current home that gives you access to its equity before the home sells, so you can put that cash toward the down payment and closing costs on a new purchase (the Consumer Financial Protection Bureau calls it exactly that — a way to use existing equity to finance a new home before a sale closes). The Knock version is called "first of its kind" because of what it adds to that basic idea: instead of stacking two mortgages with high short-term rates, Knock covers your old mortgage payments for up to six months, lets you set the bridge loan and the new purchase mortgage through one lender, and — if your home still hasn't sold after six months — agrees to buy it from you at an agreed price.

That last piece is what sets this apart. With a traditional bridge loan, if your old house doesn't sell, you're stuck carrying expensive short-term debt. With Knock, there's a built-in exit: a purchase offer from a Knock affiliate as a backstop, so the sale doesn't have to be the linchpin of your whole move (Knock[1] describes the loan as answering four underwriting questions — equity, borrower qualification, property eligibility, and whether the departing home can realistically sell).

Why a non-contingent offer wins

In a competitive market, a sale contingency is a signal a seller doesn't want to read. It tells them your purchase depends on someone else buying your house on your schedule — and if that falls through, their deal collapses too. That's why Knock[2] points out that sellers often shy away from offers carrying a sales contingency, and why buyers who can drop it have an edge when multiple offers land.

A bridge loan removes the two biggest obstacles standing between you and a clean offer. First, it lets you present verified funds for your down payment instead of a promise tied to a future sale. Second, it removes your current mortgage from the new purchase calculation — so your debt-to-income ratio isn't inflated by a house you're about to leave. Together those two things make your offer more competitive and more likely to beat other buyers (Knock's overview describes a non-contingent offer as more likely to win in a bidding war).

There's also the human side that's easy to overlook. Buying before selling means you move once, straight into your new home, instead of living through repairs, showings, and a temporary rental in between. As I tell my clients in the Warsaw area, the goal isn't just to win a house — it's to make the whole move feel manageable.

How the process works, step by step

Qualification for a Knock Bridge Loan comes down to four things: enough usable equity in your current home, approval for the new purchase mortgage, an eligible property, and a realistic plan to sell the house you're leaving (Knock's requirements guide[1]). Usable equity isn't the same as total equity — the lender subtracts your existing mortgage balance, any HELOCs, liens, estimated selling costs, and program limits before deciding what's actually available.

Here's the sequence a typical move-up buyer follows:

1. Qualify first. You provide your current home's address, estimated value, and mortgage balance so Knock can review the departing property's eligibility — often with your own lender, or with one Knock recommends (Knock's FAQ).

2. Close the bridge loan and the new mortgage together. You draw the equity advance, use it for the down payment and closing costs, and the bridge loan funds cover your old mortgage payments for up to six months — no double mortgage bills.

3. List your current home (required at least 45 days after the bridge loan funds, unless it's already listed) and market it with your agent (Knock's FAQ).

4. Sell, repay, and move on. When your old house sells, you repay the bridge loan. If it hasn't sold in six months, Knock's affiliate purchase offer steps in as the backstop.

One timing detail matters: Knock generally allows about 4 business days between the bridge loan closing and the purchase closing (Knock[1]), so your lender needs a valuation, payoff statements, and a complete documentation package ready before you start negotiating.

What it costs, and how it compares to a traditional bridge loan

No bridge loan is free, so it's worth knowing exactly where the money goes. Knock charges 0% interest for the first six months on the bridge loan, with the modest bridge loan fee plus a separate 2.25% Knock Purchase Offer fee, along with title and recording charges and appraisal or valuation costs (Knock's requirements guide[1]). You'll also be carrying two homes for a period of time — taxes, insurance, and upkeep on the old house while you're paying on the new one.

That 0% window is the standout contrast. A traditional bridge loan typically comes with a high short-term interest rate (Knock notes rates today can run as high as 30%) and an origination fee that can reach 3% of the loan value, and it expects you to handle two mortgages at once (Knock[3]). The tradeoff for Knock's structure is the separate Purchase Offer fee and the program's limits on how and where it can be used.

Is a bridge loan right for you?

The Knock Bridge Loan fits a specific buyer: someone who owns a saleable current home, wants to buy a new one first, and can document the income, assets, and credit needed for the new mortgage (Knock's eligibility breakdown[1]). You'll need enough usable equity after your existing mortgage, any HELOCs, liens, and estimated selling costs are subtracted. And your current home needs to be eligible — for example, manufactured homes are not allowed, and condos are restricted in several states.

If you qualify, the payoff is real financial flexibility. As I tell the homeowners I work with in the Warsaw area: a bridge loan lets you approach a purchase from a position of strength instead of a position of waiting. You can move on your schedule, make a clean offer, and avoid the scramble of selling first and renting in between.

Every situation is different, which is why I always sit down with the full picture before recommending a path. I'm happy to walk you through how the numbers would play out for your specific home and your specific move — no pressure, just the plain math. Reach out to me, Linda Riley, Senior Loan Officer at Ruoff Mortgage (NMLS 234665)[4], with any questions about the Knock Bridge Loan or your move-up option.