The scale of family funding in the housing market is no longer a niche phenomenon. According to Northwestern Mutual's 2026 Planning & Progress Study, 74% of parents would consider or have already started planning on financially supporting their child's home purchase, and 29% of those parents say it matters more than helping with college.
The amounts are substantial. A Veterans United survey found most contributing parents expect to give between $25,000 and $49,999, with 23% planning $50,000 to $99,999 and 12% expecting to give $100,000 to $199,999.
The number that should stop people is where the money comes from. Sixty-five percent are funding this from checking or cash accounts, 50% from investment accounts, 35% from home equity, and 32% from retirement accounts.
Nearly a third are drawing on retirement savings to fund a house purchase, in a market where the median age of all homebuyers reached 59 in 2025, up from 56 the prior year. That figure is worth pausing on: the typical American homebuyer is now approaching retirement age, which tells you how thoroughly younger buyers have been priced out and why parental help has become structural rather than supplemental.
The wrong thing to worry about
Almost every conversation about this starts with the gift tax, and for the overwhelming majority of families it is close to irrelevant.
In 2026, each person can give $19,000 per recipient annually without any reporting requirement. Two parents can give $38,000 to a child, and if that child is married, another $38,000 to the spouse, moving $76,000 in a single year with no filing at all.
Exceeding that does not create a tax bill. It creates a Form 709 filing, and the excess reduces the lifetime estate and gift tax exemption, which under current law sits at $15 million per person, $30 million for a married couple. A family gifting $150,000 uses a rounding error of that exemption and owes nothing.
So the constraint that dominates the discussion binds almost nobody. Meanwhile the constraints that actually determine whether this decision works get comparatively little attention.
The risk that is not on anyone's spreadsheet
A $100,000 gift is not a $100,000 decision. Its cost depends entirely on when it is made and what it is sold from.
This is sequence-of-returns risk, the same mechanism that makes early retirement losses so damaging. Liquidating $100,000 from an investment or retirement account after a 20% market decline means selling substantially more shares to raise the same cash, and those shares do not participate in the recovery. The permanent damage to the portfolio is considerably larger than the amount withdrawn.
The practical implication is that timing matters more than amount. A parent who can wait a year for markets to recover before funding a gift may end up giving the same dollars at a fraction of the true cost. A parent who gifts from a depressed portfolio because a house came on the market is making a much more expensive decision than the number suggests.
Anyone considering this should run the retirement projection twice, once with the gift and once without, and then a third time assuming the gift comes during a market downturn. The gap between the second and third scenarios is the real risk being taken, and most people never see it because they model the gift as a simple subtraction.
Borrowing from a 401(k) has its own version of this problem. The five-year repayment window without penalty sounds manageable, but the borrowed funds are out of the market for that entire period, and the foregone returns are not recoverable. There is also the employment risk: leaving a job typically accelerates repayment.
The framing that has stuck with me comes from a CFP quoted on this topic: there are no loans when it comes to your own retirement. A child can borrow for a house, refinance, sell, move, or wait. A retiree who runs short at 82 has no equivalent options. The asymmetry is the whole argument for conservatism here, and it is not about generosity.
The basis trap that can erase the benefit
Here is the technical point most likely to cost a family real money, and it is genuinely counterintuitive.
If a parent buys a home and transfers it to a child during their lifetime, the child takes the parent's original cost basis. When the child eventually sells, capital gains apply to everything above that figure, including decades of appreciation that occurred while the parent owned it.
If that same property instead passes through the estate at death, the child receives a stepped-up basis equal to the home's market value at the date of death. All appreciation during the parent's lifetime disappears for tax purposes.
On an appreciated property, the difference can run to six figures. A parent who transfers a long-held home to a child as a generous act may be handing them a large embedded capital gains liability, while a parent who does nothing and lets it pass at death delivers the same asset tax-free.
That arithmetic argues for keeping appreciated real estate inside the estate where possible, and for structuring lifetime help as cash rather than as a transfer of appreciated property. It also means the choice of structure is not merely administrative. It has a price.
What each structure actually protects against
The available approaches are not interchangeable, and each solves a different problem.
An outright gift is simplest and cleanest for mortgage underwriting, since lenders are accustomed to gift letter documentation. It also puts the money permanently beyond the parent's reach, which is the point and the risk.
An intrafamily loan preserves the parent's claim on the funds, but must charge at least the applicable federal rate. Below that, the IRS treats the foregone interest as a gift, which defeats the structure and creates a reporting obligation nobody intended.
A documented equity share, where the parent takes ownership of some percentage of the property in exchange for contributing to the purchase, does something the other two cannot: it clarifies who owns future appreciation, and the parent's share generally sits outside the child's marital estate. For a family concerned about a future divorce, that is meaningful protection that a gift does not provide. The trade-off is that the parties are now in business together, which requires agreement in advance on repairs, sale timing, and dispute resolution.
Buying the home and charging fair-market rent is another option, sometimes used when siblings might otherwise perceive unequal treatment. Two cautions apply. Letting a child live rent-free can be treated as a gift, and selling the home to them later below fair market value makes the discount a gift against the lifetime exemption.
Co-signing a mortgage deserves its own warning. It creates full legal liability for the debt while conferring no ownership, appears on the parent's credit report, and can impair their ability to borrow for their own purposes. It is the structure with the worst ratio of risk assumed to control retained.
The question that should come first
The useful sequence is to establish what is affordable before deciding what is generous.
That means running the retirement plan without the gift, with the gift, and with the gift made at a bad moment, then deciding based on the worst of those rather than the best. Some parents will find a $150,000 gift barely registers. Others will find it moves their Social Security claiming decision or their sustainable withdrawal rate. Both answers are useful, and the time to learn which one applies is while the decision is still reversible.
The broader context is worth holding too. With the median homebuyer now 59, family transfers have become the mechanism by which a large share of young adults enter the housing market at all. None of which changes the arithmetic. The most useful thing a parent can do is find the version of yes their own plan can actually support, and be precise about it, rather than discovering the limit years later when the options have run out.