By the Mayab Media Team
That "leave a review, get 10% off" email you send after every order? If those reviews feed the stars you show in Google, and you're not disclosing the discount, you've got a problem.
Google added a rule this summer that sounds obvious. A lot of stores break it anyway, often without realizing.
What Google changed
On July 24, 2026, Google added a new guideline to its review snippet structured data documentation, saying the change was made to improve user review transparency.
The new line in the review snippet guidelines says not to include fake or undisclosed incentivized reviews, on the page or in the structured data. Google gives two examples:
- Reviews that aren't based on a genuine experience of a product or service.
- Reviews written in exchange for a benefit, like money, discounts, vouchers or free products, that don't clearly and prominently disclose that incentive.
Search Engine Roundtable noted that nothing else on the page seemed to change, and that this brings the structured data rules closer to Google's Business Profile review rules.
One important point. Google didn't ban incentivized reviews outright. It banned undisclosed ones in review markup. If you give something in exchange and say so clearly, that example doesn't apply.
Why your stars are worth protecting
Star ratings in search results are one of the few visual edges a normal business can get on a crowded results page. They make your listing look trusted and they pull the eye.
So think about what losing them costs. If a product category page or a service page loses its stars, it's still ranking in the same spot, but it looks plainer next to competitors who kept theirs. You won't see a ranking drop. You'll just see fewer clicks and fewer sales from the same position. That's the sneaky part. Owners often never connect it.
Structured data violations can also lead to a manual action that removes rich results from your pages. Google's broader structured data policies already allow for that. That's a bigger hit than one page.
Here's a rough way to size it. Pull the click-through rate for a page with stars from Search Console, then compare it to a similar page without them at a similar average position. That gap, multiplied by your conversion rate and order value, is roughly what your stars are worth each month. For many stores it's more than the discount program costs. We'd rather you know that number before you decide what to do with your review emails.
And there's the trust angle. Buyers are getting good at spotting fake reviews. A page full of five-star reviews that were quietly paid for is a liability in Google and with real people.
Six-step review audit
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Find every page with review markup. Use Search Console's review snippet enhancement report if you have it, or run a crawl and look for Review or AggregateRating structured data.
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Trace where the reviews come from. For each source, ask: was any of these collected in exchange for something? Post-purchase discounts, contest entries, free samples, loyalty points, gift cards. Write it down.
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Add clear disclosure, or remove the incentive. If you offer a benefit, the review should say so clearly and prominently. Something like "This reviewer received a free sample." If your review platform can't display that, rethink the incentive.
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Cut anything not based on real experience. Reviews written by staff, friends, agencies or AI tools. Reviews copied from elsewhere. Imported reviews of a different product. Delete them from the page and the markup.
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Check your review app settings. Many ecommerce review plugins have options for "verified buyer" badges and incentive labels. Turn them on. Make sure the markup only pulls in reviews you'd be comfortable defending.
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Re-test and monitor. Run key pages through Google's Rich Results Test. Then watch your review snippet report and your click-through rate on those pages for the next couple of months.
Our take
We like this change. It rewards businesses that earn reviews honestly and makes it harder for the ones that game them. If you collect reviews the right way, you're fine, and this gives you an edge.
If you've been running a "review for a discount" program without disclosure, don't panic. Just fix it this month. Adding a disclosure is cheap. Losing your stars and the trust that comes with them isn't.
The takeaway: disclose every incentive or drop it, and only mark up reviews that came from real customers.
Want us to check how this affects your site? Book a free audit.
