It’s a common misconception but it is in fact illegal to claim other’s donations as donations by the corporation, and it’s not too likely that very large organisations would do that. Of course, it’s possible they’re breaking the law. It is also irritating. Why doesn’t the multibillion company just make the donation instead of harassing me.

https://taxpolicycenter.org/taxvox/who-gets-tax-benefit-those-checkout-donations-0

The store serves only as a collection agent for your gift. Assuming the business is following the law, it will not include your donation as part of its business receipts, or income, nor will it claim the charitable gift as an expense.  In other words, your gift has zero impact on the store’s income taxes.

This myth will not die...

A company that collects your donations cannot claim those donations as tax deductible. They are your donations; you can claim them on your taxes.

Even if the company could claim them, it would be income that they would then offset, resulting in a net of zero. There would be no benefit to this.

Companies cannot and do not claim your donations to receive tax benefits. Companies do a lot of shitty things, but soliciting pocket change en masse for charities is actually one of the few good things they do.

McDonalds does this too. So infuriating. "Here's your overpriced shit food we are making a ton of profit on, would you like to donate to charity as well? Think of the poor children! Feel the guilt! Ok thanks, I'll tax those tax credits from the government in which you also pay. Bye!"

Almost Every major retailer in the US does this.