Your Grocery Store Is Charging You a Different Price Than the Person Standing Next to You.

► A Consumer Reports investigation found that grocery prices can vary by as much as `23%` from customer to customer on the same item, at the same store, at the same time. The difference is based on who you are, not what the item costs.

► Kroger collects detailed shopper profiles including inferred income, family size, education level, and gender, then uses that data to personalize what discounts you see. The base price may be the same. The offer you get is not.

► Walmart, Target, Amazon, Safeway, Albertsons, and Instacart have all used some form of dynamic or surveillance pricing online. Instacart was caught showing different prices to different shoppers for the same items from the same store.

► Maryland became the first state to ban surveillance pricing on groceries in early `2026`. New York, Connecticut, California, and Illinois are considering similar laws. More than `40` bills have been introduced across `24` states.

► Online, retailers track your browsing history, search patterns, location, and even mouse movements to estimate what you are willing to pay. Some adjust prices in real time. You cannot see what anyone else is being charged.

The average American household spends about `$13,000` a year on groceries. If surveillance pricing shifts what you pay by even `5%`, that is `$650` a year more than the person in the next checkout lane. At `10%`, it is `$1,300`. You would never know because you cannot see their price.

This is not a sale ending or prices changing by season. Dynamic pricing is the store deciding, based on data about you, that you will probably pay more. If the algorithm sees you always buy name-brand, it may never show you the generic discount. If it sees you shop at the same time every week, it knows you are not comparison-shopping.

The practice started with airlines and hotels. Then Amazon. Now it has reached your milk and eggs. The difference is you have to eat. You cannot skip the purchase. The algorithm knows that too.

The stores say this benefits consumers. Personalized discounts. Loyalty rewards. Targeted coupons. Some of that is true. If you clip digital coupons and check your app before every trip, you can come out ahead.

But the system works in the store’s favor. The loyalty card gives them data. The data models your willingness to pay. The model decides your offer. If you look like someone who buys regardless, you get fewer discounts. If you look like someone who might leave, you get better ones.

Digital shelf tags are now in Walmart, Kroger, and other major chains. These electronic labels can update prices without a human touching them. A study found they have not yet led to surge pricing in stores. But the infrastructure is built. The question is no longer whether grocery stores can charge you a personal price. It is whether the law stops them.

Before your next grocery run: Check prices on the store’s website in an incognito browser window, then compare to what the app shows you while logged in. If the numbers are different, the store is personalizing your price. Screenshot both.

At the store: If you see digital shelf tags instead of paper labels, the store has the infrastructure for real-time pricing. Shop the weekly flyer rather than relying on the app’s “personalized” deals, which may not be the best deal available.

My friend showed her sister’s phone to the store manager. He did not have an explanation. She switched her Kroger app to her sister’s account for the rest of the trip. Saved `$11` on a `$94` cart. Same store. Same shelf. Different price.