There is a new tax on groceries, and nobody collects it at the register. The grocery time tax is the unpaid labor shoppers put in to keep their food bills down — scrolling for coupons, comparing prices across stores, driving the extra miles to a cheaper cart. And according to new research from Iridio by RRD, that tax just went up for almost everyone.

Nearly eight in ten U.S. adults now spend additional time each week trying to save money on groceries compared with three years ago. The survey, conducted with Wakefield Research among a thousand nationally representative U.S. adults and three hundred grocery, CPG and mass retail decision-makers, also found that nearly eight in ten shoppers have reduced or eliminated spending in other areas because of grocery costs. Researchers at the firm call the pattern a value optimization economy, where shoppers trade time, convenience and brand loyalty to stretch their budgets.

“We’ve reached a tipping point where saving money on food has become a second job for many households,” said Beth Johnson, grocery industry strategist at RRD and Iridio. The line sounds dramatic until you look at the numbers behind it: more than half of adults spend at least half an extra hour every week hunting grocery deals, and almost a third spend an hour or longer doing it. That is four to eight hours a month spent on what amounts to an unpaid side hustle at the supermarket.

Gen Z feels the grocery time tax hardest. More than eight in ten Gen Z respondents cut lifestyle spending to afford food, led by cutting back on dining out, entertainment and travel. The generation that grew up being told to monetize every hour is instead donating hours to the produce aisle — and paying for the privilege with the parts of life that actually feel worth living.

The math behind the grocery time tax

Deal-hunting only pays off if the savings beat the cost of your time, so run the numbers honestly. If an hour of coupon-clipping, price-checking and driving to a second store saves you fifteen dollars, you just worked for less than what a fast-food shift pays — and if it took two hours, you halved your hourly rate again. The grocery time tax looks biggest on the line items where the payoff is tiny: ten minutes comparing two nearly identical pasta brands might net you spare change.

That is not to say the effort is worthless. Where the grocery time tax pays off is in the high-leverage moves: planning meals around what is already on sale, consolidating to one store instead of three, and switching a handful of staple items to cheaper store brands. As reported by The Shelby Report, more than a third of shoppers now rely more heavily on print or digital coupons, and nearly half are willing to scan in-store codes for exclusive rewards. The shoppers winning the grocery time tax game spend their minutes on the discounts that scale — store-wide sales, not cent-by-cent brand duels.

There is also a trap inside the savings game itself. In a separate survey commissioned by the food-waste advocacy group ReFED, six in ten cost-conscious shoppers said they buy larger or bulk packages to bring down the per-unit price — but the group warns that bulk buying organized around price promotions is linked to overpurchasing and spoilage at home. Americans toss food worth roughly three hundred eighty billion dollars a year, and the household share of that waste costs more than seven hundred dollars per person annually, as reported by Coupons in the News. Buying more to save money only works if you actually eat it.

Smarter plays that beat the grocery time tax

The goal is not to stop saving — it is to stop overpaying for savings. First, batch your deal work: one weekly pass through a store’s digital deals and your grocery app’s coupon list takes twenty minutes and captures most of the value. Set price alerts on the handful of items you buy every week instead of browsing the whole flyer. Nearly half of shoppers in the Iridio research said they would hand a grocer their shopping data in exchange for sale alerts and personalized discounts — the automation is the point.

Second, shrink the waste that quietly doubles your bill. Check what is in the pantry before you shop, freeze food you will not use in time, and pick smaller package sizes for anything you have thrown away before. The ReFED findings show the cost-conscious habits that actually stick are the boring ones: meal planning, using up leftovers, and cooking what you already own. Every uneaten item is a coupon you set on fire.

Third, trade down strategically rather than across the board. The research found that roughly a quarter of shoppers cut name-brand items and one in five swapped fresh produce for bulk or shelf-stable goods. You do not have to do either. Pick three high-frequency items — milk, eggs, pasta — and switch those to the cheapest option while keeping the brands you actually care about. Surgical downgrades beat lifestyle-wide austerity.

The convenience counterpoint: skipping the grocery time tax

Of course, the grocery time tax is optional, and a growing share of shoppers are choosing not to pay it. Some Gen Z shoppers are spending more — on delivery fees, ready-made meals, and grocery subscriptions — to claw back the hours the deal game eats. As GenZ NewZ recently reported on the convenience spending habit Gen Z cannot quit, paying a premium for speed is its own rational trade when your time is scarce.

Neither extreme is wrong; they are answers to different constraints. If money is tight and time is loose, hunting deals is smart labor. If time is the scarce resource — a full class load, a job with unpredictable hours — paying a few dollars to skip the grocery run is the better deal. The mistake is paying both taxes at once: spending the time AND the money, clipping coupons for a cart you then had delivered.

Pick one strategy and commit to it for a month. Track two numbers: what you saved, and how long it took. If your deal-hunting pays less than an hour of your actual wages, automate it — sale alerts, a standing grocery list, a loyalty account that does the work for you. For more money tricks that respect your time and beat the grocery time tax, browse our Life Hacks topic page.