According to the National Association of Realtors’ 2026 Home Buyers and Sellers Generational Trends report, older millennials—now ages 36 to 45—have quietly become the highest-earning, biggest-spending generation of homebuyers in the market. They post the highest median household income of any generational group at $132,700, buy the largest homes at a median 2,100 square feet, and are the most likely to have children living under their roof. In almost every measurable way, they now look less like the struggling young buyers they once were and more like the baby boomers they spent years resenting.

“They really have hit middle age,” said NAR deputy chief economist Jessica Lautz. “They’re at their peak of their career now or heading in that direction. They may have not wanted to follow that trajectory, but they’re there.”

The equity effect

The mechanism driving this transformation is the same one that has long powered boomer dominance: home equity. Older millennials who bought in the mid-2010s or even the early pandemic years have watched their home values climb substantially. They’re now using those gains to trade up—shedding starter homes for larger, more expensive properties that define a move-up market.

It’s a playbook boomers have run for decades. Buy early, accumulate equity, leverage it into something bigger. Older millennials, long denied entry to that cycle, are finally running it themselves. Only 33% of older millennial buyers were purchasing for the first time—down from 36% the prior year—meaning the clear majority are already homeowners making their next move.

A generation splitting in two

The rise of older millennials throws into sharp relief just how dramatically the broader millennial cohort has fractured. As a whole, millennials’ share of homebuyers dropped from 29% to 26%—the only major generational group to lose ground. But that headline figure masks a growing divide between two cohorts with almost nothing in common economically.

“I think it’s a definite split right now,” Lautz said. “It’s why we separate the data out from younger and older millennials. It’s not something that we actually always had done, but we started doing it because there had been such a difference.”

Younger millennials, ages 27 to 35, are still fighting the battle their older counterparts largely won. Their share of first-time buyers plummeted from 71% to 60% in a single year. Student loan debt and credit card burdens weigh more heavily on this cohort, Lautz noted, while older millennials’ financial pressures have shifted to childcare costs and high rent—the friction of a life already in motion, not one still trying to launch. “Younger millennials,” she said, “are really struggling to enter into the housing market. And that’s feeling out of reach for many of them.”

The record-low first-time buyer share—21% of all purchases, the lowest since NAR began tracking in 1981—is largely their story, although Lautz said that figure has been the case since late 2025. When asked if she thinks this is becoming a structural issue, Lautz agreed: “I think we’re at that point right now.” The consequences are long-term: A first-time buyer locked out until 40 isn’t just delayed, they’re losing years of wealth accumulation. “It becomes a renter versus an owner economic scenario,” she said. “And that’s really what we’re seeing right now.”

Why boomers aren’t going anywhere

Baby boomers—now ages 62 to 79—accounted for 42% of all buyers and a dominant 55% of all sellers. They move with equity-fueled flexibility, and critically, they have both the means and the motivation. “Homeownership is the number one way that people build wealth in America,” Lautz said, “and they are able to really purchase what they want at a time in their life where they can do what they would like to do.”

What they would like to do, it turns out, is not necessarily downsize—despite saying otherwise. “The stat I think is the funniest,” Lautz said, “is that they tell us one of the reasons they move is to downsize, and then they don’t downsize.” The data backs her up: Among boomers in their sixties, there is almost no change in square footage when they move. Among those in their seventies, the reduction is just 200 square feet—perhaps one bedroom. The pull of family keeps them large: One major motivation for boomer moves is being closer to friends and family, which in practice means hosting grandchildren over the holidays, not trading a four-bedroom for a condo.

“You have the haves with the baby boomers,” Lautz said, “and to a certain extent Gen Xers and some older millennials, too. And then you have the have-nots who are really trying to get in.”

40 is the new prime

There’s a deeper current running beneath these generational shifts, one that the data keeps surfacing: The traditional American homeownership timeline has fundamentally changed. The median age of a first-time buyer is now 40—a number that would have been almost unthinkable a generation ago. How long first-time buyers expect to own their first home before moving has stretched from as few as five years historically to 15 years today.

A first-time buyer at 40 is also, research suggests, a buyer at or near their actual life peak. Cognitive performance, emotional stability, and earnings all tend to crest in the fifth decade. In a longer American life—one that now routinely extends into the early eighties—the forties are barely the midpoint. Older millennials buying their biggest homes and hitting peak income now aren’t running behind schedule. They’re running on a schedule that the 21st century created.

Even Gen Z, whose 4% buyer share edged up from 3%, is entering homeownership unconventionally—35% as single females and 17% as unmarried couples, both generational highs. The traditional family-formation triggers for buying have given way to a simpler one: the desire to own something, on whatever terms are available.

Perhaps no generation captures the full pressure of this market more than Gen X, who Lautz stressed that she didn’t want to leave out, as they are truly embodying the “sandwich generation” handle right now. Gen X, she noted, has quietly become the new face of multigenerational buying—a distinction that once belonged to boomers. “They could be taking care of an elderly parent; a young adult who can’t afford to live independently is in their house too—and just overall cost savings,” she said. “You can see just the pressures on Gen Xers.”

It’s a fitting image for where the housing market stands in 2026: a generation in the middle, literally and figuratively, holding up the people above them and the people below, in a market that was built for those who got in early and never really had to leave.