Short answer, right up front: there is no law that says a seller has to respond to your offer in any amount of time. Not 24 hours, not 72, not a week. The only deadline that exists is whatever expiration date and time you (or your agent) typed into the offer itself. If you didn't put one in, the seller could theoretically sit on your offer forever — which is exactly why every decent offer has one, and why you should know how to use it instead of leaving it to chance.

There's no universal deadline — you write your own

Purchase offers aren't governed by some federal "respond-in-X-hours" rule. They're contracts, and like any contract, the terms are whatever the parties (in this case, mostly you) write down. Most standard offer forms have a built-in field for an offer expiration date and time — a line that says something like "this offer is open for acceptance until 5:00 PM on [date]." California's standard form, for example, defaults to 5 p.m. on the third day after signing unless someone changes it, per a summary of state contract norms from HomeLight. Other states' standard forms work the same way in spirit — a blank you or your agent fill in — even though the exact default language differs.

If that field is blank, or you're writing an informal offer without a standard form, you're in genuinely open-ended territory. Better.com puts it plainly: without a stated deadline, the seller could take unlimited time to respond, and you have no contractual lever to force the issue.

What "typical" actually looks like

There's no legal standard, but there is a practical one — the window most agents actually write in, and the window most sellers actually use:

  • 24 to 72 hours is the range you'll see cited most consistently across brokerage and lender explainers, including Redfin, Rocket Mortgage, and HomeLight.
  • 48 hours is probably the single most common default plugged into a standard offer form, per Better.com.
  • A few hours, same-day shows up in genuinely hot markets or bidding-war situations, where an agent will write "offer expires at 8 PM tonight" specifically to force a fast decision before other buyers get a look.

Which end of that range you land on depends entirely on market temperature. As of the most recent NAR REALTORS® Confidence Index (July 2026 data, published August 11, 2026), the average listing was drawing about 2.0 offers — down slightly from 2.2 the month before but roughly flat year-over-year at 2.1. That's a market with some competition, not the six-, eight-, twelve-offer chaos of 2021, so a 24-hour deadline is more of a hot-market power move right now than the baseline expectation everywhere. In a slower local market, a 48-to-72-hour window is more normal and less likely to read as aggressive.

Why someone sets a short fuse on purpose

An expiration window isn't just paperwork — it's a lever, and both sides can pull it.

A buyer setting a short deadline (hours instead of days) is usually trying to force the seller to decide before other offers can pile up, or before the seller's agent has time to shop your offer around to drum up a bidding war. It's a pressure tactic, and it can backfire: a seller who feels rushed, or who's out of town, or whose agent is slow to relay the offer, may just let it lapse instead of scrambling to respond, and you lose the house you were trying to win.

A seller (via a counteroffer with its own tight window) does the same thing in reverse — forcing you to decide fast before you can shop around, get a second opinion, or line up better financing. It's a completely normal tactic, not a red flag on its own, but it's worth recognizing it as a tactic rather than a fixed rule of the universe.

What actually happens when an offer expires unanswered

Nothing happens — legally, that's the whole point. An expired, unaccepted offer is simply dead. No contract ever formed, so there's nothing to enforce, nothing to sue over, and no obligation on either side. You're free to walk away, submit a fresh offer, or go look at other houses, per Better.com. If a seller comes back after your deadline passed wanting to accept your original terms, they can ask — but you're under no obligation to honor an offer you already let expire, per HomeLight.

One subtlety worth knowing: an expiration date controls how long an offer is available to accept — it doesn't force the seller to actually respond by that moment. A seller can go quiet past your deadline and then come back a day later with a new counteroffer; because your original offer already lapsed, that's a fresh negotiation, not a response to something you sent, as explained in this breakdown of expiration dates versus response deadlines. It's a fine distinction, but it matters if you're trying to figure out whether you're still "in it" with a house or not.

None of this applies once there's a signed, mutually accepted contract — at that point you're both bound to the deadlines written into it, and blowing past those (inspection periods, financing contingencies, closing dates) is a different, much more serious problem than an unanswered offer. This article is about the earlier stage: before anyone has said yes to anything.

Counteroffers reset the clock — every time

A counteroffer isn't a modification of your original offer sitting in some ongoing negotiation. Legally, it's a brand-new offer, which does two things: it kills the previous offer (you can't go back and accept your own original terms once someone's countered), and it comes with its own new expiration deadline, however long the person writing it wants to make it.

That means a single negotiation can involve several completely separate mini-deadlines stacked back to back — your offer expires in 48 hours, their counter expires in 24, your counter to their counter expires in 12 — each one a fresh, self-contained "yes, no, or new terms" clock. If any one of them lapses without a response, that round is over, full stop, the same as described above.

Silent rejection vs. formal rejection

Here's the part that actually frustrates buyers: a seller can reject your offer just by doing nothing. Letting the clock run out is a rejection in every practical sense, and in most states, that's perfectly legal — sellers generally aren't required to formally decline in writing, they can just not respond, per Rocket Mortgage. It's not personal, and it doesn't always mean your offer was bad — sellers stay quiet because they're juggling multiple offers, waiting to see if a better one materializes, or just slow, not necessarily because they hate your terms, per Better.com.

The one real exception worth flagging: Nevada is unusual in actually regulating this at the agent-licensing level. Nevada Administrative Code § 645.632 requires a seller's licensee, when an offer isn't accepted within a reasonable time, to give the buyer written notice — signed by the seller — that the offer wasn't accepted (and it works the same way in reverse for a buyer declining a counteroffer). That's a real, if narrow, statutory quirk that overrides pure silent-rejection etiquette, but it's a duty on the licensee, not a deadline written into contract law generally, and it's the only state-level rule of its kind I found in this research — treat it as **** since regulations get renumbered and amended. I didn't find anything comparable on the books in other states; everywhere else, this is genuinely just a matter of what you write into the contract plus local agent norms, not statute.

The practical takeaway

  • Always put an actual expiration date and time on your offer. Don't leave it blank and hope for the best — that's how you end up with an offer floating in limbo for a week while you can't make other plans.
  • Match the window to the market. Hours in a genuine bidding war, 24–48 hours in a normally competitive market, up to 72 hours if things are slow and you want to be polite rather than pushy.
  • Don't read silence as a verdict on your worth as a buyer. It usually means the seller is juggling logistics, not that your offer insulted them personally.
  • Once your deadline passes, you're free. No hard feelings required — submit an improved offer, look elsewhere, or wait to see if they come back with a counter of their own.

Sources

State-by-state contract form language (e.g., default expiration windows on standard forms) can vary by MLS and brokerage template even within a state — the specifics above reflect commonly cited examples, not an exhaustive 50-state survey.