Under the new 2026 Texas back-up contract rules, how much earnest money and option fee do I actually need to put down to make my backup offer official in McKinney?

Under the new 2026 Texas back-up contract rules, how much earnest money and option fee do I actually need to put down to make my backup offer official in McKinney? There's no fixed legal minimum - in McKinney's current market, most backup offers still use the same negotiated earnest money and option fee structure as a primary contract, just layered behind the first one.

That answer tends to surprise buyers who assume the updated 2026 Addendum for Back-Up Contract introduced a set dollar amount or a new state-mandated fee schedule. It didn't. What changed is mostly procedural - clearer timelines for when a backup contract converts to a primary one, and tighter language around what happens to your money if the first contract falls through versus if it closes as planned. The actual amounts you put down earnest money and option fee are still negotiated between you and the seller, just like any other residential contract in Texas.

That flexibility is exactly why backup offers trip people up. If you're competing for a home in Trinity Falls, Stonebridge Ranch, or anywhere else in Collin County where a desirable listing already has an accepted contract, your backup position is only as strong as the terms you're willing to put behind it. Too little earnest money and a seller may not take your backup seriously. Too much, and you're exposing yourself to risk on a deal that might never even activate. This post walks through how earnest money and option fees actually function in a backup contract under the updated addendum, what McKinney sellers typically expect to see, and why the timing rules matter just as much as the dollar figures. By the end, you'll know what to bring to the table - and why getting it reviewed before you sign is worth the extra day.

What the 2026 Addendum Actually Changed

The updated Addendum for Back-Up Contract didn't rewrite the financial structure of Texas real estate deals - it clarified the mechanics. The biggest practical change is around notice and timing: sellers and buyers now have clearer deadlines for when a backup contract either converts to primary status or terminates if the first contract falls apart. That matters in McKinney, where inventory in sought-after sections of Craig Ranch or Painted Tree can move fast enough that backup positions genuinely do convert.

What the addendum does not do is set a required earnest money amount or option fee. Those numbers are still whatever you and the seller agree to, just like on a standard one-to-four family residential contract.

Earnest Money on a Backup Offer: What's Typical in McKinney

Earnest money is your good-faith deposit, held by a title company, showing the seller you're serious. On a backup contract, it works the same way - except your money generally isn't due, and isn't at risk, until your contract actually activates as the primary agreement.

• Amount: Most McKinney buyers mirror what they'd offer on a standalone contract - often scaled to price point, with higher-value homes in neighborhoods like Stonebridge Ranch sometimes seeing a stronger deposit to signal commitment.
• Timing: Confirm in writing when the earnest money clock actually starts for a backup position - it should be tied to the contract converting to primary, not to the date you sign the backup paperwork.
• Refundability: If the first contract closes and your backup never activates, your earnest money should never have been deposited in the first place - make sure that's explicit.

The Option Fee: Smaller Number, Bigger Leverage

The option fee is what buys you the unrestricted right to terminate during your option period - it's paid directly to the seller, not held in escrow. On a backup contract, this is where buyers most often get the sequencing wrong.

Because your backup contract may sit dormant for days or weeks while the first deal plays out, your option period technically shouldn't start ticking until your contract becomes primary. If that start date isn't spelled out clearly, you could end up with a shortened or even expired option period the moment your backup offer activates - which defeats the purpose of paying for it at all.

A Quick Example

Say you submit a backup offer on a home in Emerald Lake while a buyer ahead of you works through their own financing contingency. If that first contract terminates three weeks later and your contract converts to primary, you want your 10-day option period starting from that conversion date - not from the day you originally signed. Get this in writing before you submit.

Why Backup Offers Still Matter in This Market

Some buyers skip backup offers altogether, assuming they're a long shot. But in parts of Collin County where demand has been resilient - including the stretch of McKinney covered in our look at the 75071 zip code's ranking among the hottest in the country - primary contracts fall through more often than people expect, whether from financing issues, inspection disputes, or appraisal gaps. A well-structured backup offer with the right earnest money and option fee can put you first in line without you ever having to re-negotiate from scratch.

If you're also navigating a contingent offer with a kick-out clause on another property while you wait, it's worth reading our breakdown of how to protect yourself from a 72-hour kick-out clause - the two situations often overlap for buyers juggling multiple deals at once.

What to Confirm Before You Sign

• When does your earnest money actually become due and at-risk?
• When does your option period start, and how many days do you get?
• What happens to your deposit if the seller's first contract closes normally?
• Is the backup addendum referencing the correct, updated 2026 version with current timeline language?

None of these questions have a one-size-fits-all answer, and getting any of them wrong can cost you real money or a real deadline in a deal that was supposed to be your safety net.

FAQ

Is there a minimum earnest money amount required for a backup contract in Texas?

No. Texas law doesn't set a minimum - earnest money on a backup contract is negotiated between buyer and seller just like on a primary contract, and amounts vary based on price point and local norms in McKinney.

Do I pay the option fee immediately when I submit a backup offer?

Typically the option fee becomes due once your backup contract converts to primary status, not when you first sign - but this should be explicitly stated in your addendum to avoid confusion.

Can I withdraw a backup offer before it converts to primary?

In most cases, yes, since your earnest money and option period haven't activated yet - but the exact terms depend on how your specific addendum is worded, which is another reason to have it reviewed before signing.

Backup contracts look simple on paper, but the timing details under the updated 2026 addendum can make or break your position if the first deal falls through. Talk to an agent before submitting a backup offer under the updated 2026 addendum - reach out to Jane Clark at Keller Williams McKinney for guidance tailored to your situation in McKinney and Collin County.