Quick Answer
Your contract generally starts on the effective date, the date the last party signs (usually the seller) and the contract is fully executed, sometimes called "fully receipted" in Texas. Once that date lands, the deadlines begin running, including your option period and your financing and appraisal timelines. Until that moment, nothing is binding. The exact effective-date mechanics can vary by state and by the specific contract form you use, so always confirm what applies to your deal with your agent.
This is the question I hear right after a first-time buyer submits an offer: "Is this real yet? Do I have a contract right now?" It is a fair thing to ask, because the deal does not become official the second you hit send. There is a specific moment when your offer stops being a proposal and becomes a contract, and knowing that moment tells you when every deadline on your calendar starts counting. Let me walk you through it the way I would on our call.
An offer isn’t a contract
In my teaching I draw a clean line here: an offer is a proposal. It is your side describing what you want to buy, for how much, and on what terms. It becomes a contract only when both sides sign it and it is delivered and executed. Before the seller signs, you are still in negotiation, not in a binding agreement. You can still revise or withdraw your offer, which is exactly why I tell buyers to read whether you can change your offer after you submit it. And if you want to know what actually makes a seller say yes, my guide to what makes a strong home offer besides price is the place to start.
The effective date
The date your contract takes effect
Your contract spells out an effective date, the date the contract takes effect as agreed by the parties. This is the date your clock starts. The option period, the financing timeline, the appraisal window, every deadline that protects you counts from this date, not from the day you first saw the house or the day you wrote the offer.
A word on accuracy here: the exact mechanics of when and how the effective date is set can vary by state and by the form you use. In Texas, the contract often becomes effective when the last party signs and it is fully executed or receipted, but the "how" can differ by document. I am not going to state a current Texas rule as hard fact on a teaching page. Confirm the exact effective-date mechanics for your own contract with your agent before you rely on them. What matters for you is that deadlines run from a defined date, and you need to know what it is.
Once that clock is running, so is your exposure. Understand what protects you by reading when your earnest money is at risk, and what happens if you let a window slip in what happens if I miss a contract deadline.
What happens before it’s official
A lot happens between "I sent my offer" and "we have a contract," and all of it happens while your offer is still just a proposal. The seller might accept exactly what you wrote, or they might come back with changes. That back and forth, the counteroffers and the negotiating, all takes place before the contract goes into effect. Nothing in that process is binding until both sides land on the same terms and sign.
This is why the order of events matters to you. If the seller simply says no, you still have options, and I break those down in what happens if the seller rejects my offer. If they come back with a different price or terms, you are in a counteroffer, and you want to know exactly how that plays out in what happens when the seller counters.
Why it matters to you
The start date is the finish line’s anchor
Every deadline in your contract counts from that effective date, and that is what makes it worth knowing by heart. Your option period, the window where you can investigate the property and, in many cases, walk away for almost any reason, starts from this date. So does your financing timeline and your appraisal window. Miss one of those windows and you can lose leverage, pay extra, or risk your earnest money.
When a buyer tells me they are nervous about the date their deal became real, I tell them the same thing every time: do not guess. Read the contract, find the effective date, and put the option period on your calendar from that day forward, not from the day you toured. Your deadlines are real, and they reward the buyers who track them.
A simple timeline
Here is the whole journey in one clean line, so you can see where the contract start date fits relative to everything else.
Step 1
Offer submitted
You send your offer through your agent.
Step 2
Negotiated
Acceptance or counters land on agreed terms.
Step 3
Fully executed
Both sides sign; the effective date starts the clock.
Step 4
Deadlines run
Option, financing, appraisal, and inspection windows.
Step 5
Closing
Final walkthrough, signing, keys.
This is a PATRICK TEACHING outline of how the process generally flows. Your exact steps and windows come from the contract you sign.
For the full walkthrough of everything that happens in that final stretch, see what to expect on closing day.
Quick FAQ
When is my offer legally binding?
Generally, when both sides have signed the written contract and it has been delivered and executed. Before that, your offer is a proposal and you can usually revise or withdraw it. Your contract's effective date marks when it takes effect.
What is the effective date of a contract?
It is the date the contract takes effect, set by the parties in the agreement. It is the date the clock starts on your option period and your other deadlines, so it is the single most important date to pin down.
When does the option period start?
In a typical Texas contract, the option period runs from the effective date of the contract. Count your days from that date, not from the day you toured the home or wrote the offer.
Can the seller accept another offer before I sign?
Until your offer is accepted and the contract is fully executed, you are not under contract, and another buyer's offers are still on the table. That is exactly why speed, a strong offer, and a responsive agent matter before you are under contract.
A note on accuracy: contract rules and effective-date mechanics can vary by state, by the specific form you use, and by what you and the seller agree to. This page teaches you how contracts and deadlines generally work and how to think about your start date, but for your exact situation, confirm every step with your real estate agent and, where appropriate, your attorney.