A real estate offer in Washington does not stay open indefinitely.
Under the standard NWMLS purchase and sale agreement, an offer has an expiration date. If the seller signs and returns the offer exactly as written before that deadline, there is a binding agreement. If that does not happen, the buyer is no longer bound by that offer. If the expiration date is left blank, the agreement provides a default timeframe of two days after delivery.
That does not mean the conversation has to end. A seller can reject the offer, ignore it, or respond with a counteroffer. Negotiations can still continue, but the original offer itself is no longer open for simple acceptance once it has expired.
What Is an Offer Expiration Date?
The expiration date is the deadline for the seller to accept the buyer’s offer as written.
On the standard NWMLS Form 21, that deadline appears in the offer itself. If the seller signs the offer without making any changes and it is properly delivered before that deadline, the parties have a binding purchase and sale agreement. If that does not happen, the offer lapses.
In real life, that can mean a few different things. The seller may reject the offer outright. The seller may simply not respond, which has the same practical effect once the offer expires. Or the seller may counter back with different terms, which moves the negotiation forward on a different timeline.
What Happens If the Seller Responds Before the Deadline?
If the seller signs the offer exactly as written and it is delivered back before the expiration deadline, the offer is accepted and there is a binding agreement.
If the seller changes the price, dates, contingencies, possession, or any other term, that is not acceptance. It is a counteroffer.
That distinction matters because a counteroffer is not the seller agreeing to the buyer’s offer. It is the seller rejecting that offer and proposing different terms instead.
How Counteroffers Change the Timeline
Once a seller counters an offer, the negotiation moves off of the original offer and onto the counteroffer.
The cleanest way to do that is usually with NWMLS Form 36, which includes its own expiration date. That date can be filled in, and if it is left blank, the counteroffer expires two days after delivery unless it is sooner withdrawn.
So the key point is simple: a counteroffer creates a new proposal with its own deadline.
That is why the original offer expiration date often stops mattering once the seller counters. At that point, the question is no longer whether the buyer’s original offer will be accepted as written. The question becomes whether the new counteroffer will be accepted.
What If the Offer Expiration Date Passes?
If the offer expiration date passes without the seller signing and returning the offer exactly as written, the buyer is no longer bound by that offer.
That said, it is still possible for the parties to move forward on the same terms even after the deadline has passed.
In some situations, a seller may sign and return the original offer after the expiration date without making any changes. If the buyer then confirms they are still willing to proceed, the parties can move forward under those same terms.
There are a few ways that can be handled in practice, including written confirmation or actions that clearly show both sides intend to proceed. The key point is that once the original deadline has passed, it typically takes some form of acknowledgment from both parties to move forward.
Can an Offer Expire Without a Response?
Yes.
A seller doesn’t have to respond to an offer. If the seller does nothing and the deadline passes, the offer expires.
From the buyer’s side, that usually feels the same as a rejection. There is no agreement in place, and the buyer is free to move on, rewrite the offer, or wait to see whether the seller comes back with different terms.
Can You Withdraw an Offer Before It Expires?
Yes.
A buyer can withdraw an offer before it has been accepted and properly delivered. The same general idea applies to counteroffers as well. Until the other side has accepted and delivered the signed document, it can still be withdrawn by written notice.
That is one reason timing matters. An offer or counteroffer is not binding just because someone intends to sign it or says they are going to accept it. It has to be fully accepted and properly delivered.
Why This Matters to Buyers and Sellers
Offer timelines are not especially complicated, but they do need to be handled carefully.
The main things to understand are:
- An Offer Has an Expiration Date
- If That Date Is Left Blank, The NWMLS Forms Provide a Default Timeframe
- A Seller Accepting the Offer As Written Is Different from a Seller Countering It
- A Counteroffer Creates a New Proposal with Its Own Deadline
- An Offer or Counteroffer Can Usually Be Withdrawn Before Acceptance and Delivery
- Nothing Is Binding Until It Is Fully Signed and Properly Delivered
Understanding that helps buyers and sellers avoid confusion and makes negotiations feel much more straightforward.