What the numbers say
What a UC really costs, and who should worry
Award letters go out in March, and by the first week of April most California families with a college-bound senior have seen the price. The University of California lists the full cost of attendance (tuition, housing, food and books) at between $42,195 a year at UCLA and $49,849 at UC Berkeley. For a family that has put away a few hundred dollars a month since their child was small, those figures look impossible.
The published price, though, is one of the least useful numbers in American higher education. What a family actually pays depends on its income, and each campus reports what families at each income pay. UCLA reports that a family earning around $75,000 receives about $31,474 a year in grants, which never have to be repaid. That brings the bill down to about $10,721. A family earning over $110,000 receives about $9,761 and pays about $32,434. Most of our scenarios are for families earning more than $110,000, so the second price is the one that applies. The planning below is worth more at the higher incomes.
We priced four years at all 9 UC campuses for 162 scenarios: three incomes and three levels of savings, in state and out of state. The results fell into a pattern we did not expect. The choice that mattered most was not the campus, and it was not income either. It was whether the family ended up borrowing.
Figures projected to 2027 entry and recomputed every time this page is built, so they track current costs, federal loan rates and tax rules. Shares and medians describe our scenario grid — an evenly spaced sweep of incomes and savings levels — not the distribution of actual families.
The tax credit families lose without noticing
Some families never borrow at all. At the lowest income we priced, 67 percent of our in-state scenarios finish four years debt-free, because the grants cover most of the bill at every campus. At the highest income, only 33 percent do. For the families who never borrow, the only planning question is a federal tax credit that many have never heard of. The families who borrow have a second problem, and we come to it below.
The American Opportunity Tax Credit is worth up to $2,500 a year for each of the first four years of college. It starts to shrink when a married couple's income passes $160,000 and is gone at $180,000. It also has a condition that catches people: you have to pay at least $4,000 a year of tuition, required fees and books with money that has not already had a tax break. Money from a 529 has had one, because it comes out tax-free when it pays for school, and the IRS will not let the same dollar get both breaks. Tuition paid from a 529 does not qualify for the credit. Neither does tuition paid by a grant or scholarship. If your grant covers your tuition, little or nothing is left for the credit to count.
The consequence arrives in September of freshman year. A family that has spent eighteen years filling a 529 gets its first bill and pays it from the account, which is, after all, what the account is for. If the 529 pays the whole bill, that year's credit is gone, and the family finds out only when they file taxes the next spring. The fix is to pay about $4,000 of each year's tuition, required fees and books from ordinary savings and the rest from the 529. Across our in-state scenarios, a plan was worth a median of $9,350 over four years: half the scenarios came out above that, half below. Of all the savings a plan found, 23 percent came from this tax credit.
Above $180,000 the credit is gone, so what is left depends on whether the family borrows. A family paying from savings has little to plan: in 9 of our 27 higher-income in-state scenarios, the most careful plan cost exactly the same as the most naive one. The rest borrowed, and for them the order was worth up to $29,760, all of it interest.
Out of state, a different problem
UC charges out-of-state students $37,371 a year more than Californians, the same at every campus, so no campus is a cheaper way in. UC has given out-of-state students no need-based aid since 2016-17. At UC Berkeley, an out-of-state student with no aid pays about $87,220 a year. Federal loans cover at most $27,000 for the student over four years and, since the July 2026 limits, $65,000 for the parents. Anything beyond that $92,000 has to come from private lenders, at private rates. That is why borrowing decides the out-of-state bill: across our out-of-state scenarios, how the family borrowed was worth a median of $74,531, and 100 percent of the savings was interest.
In 45 of the 162 scenarios we priced, 28 percent, no payment plan could make the numbers work: the parents would have needed to borrow more than one and a half times their annual income. At that level of debt, experts generally recommend a less expensive school, and that is far better to decide in April than to discover in October.
What that looks like for four families
All four are at UCLA, the cheapest campus, so these are the gentle end of the range, not the frightening end. We print every figure we used, including the aid we assumed and why. Each result is one family's, not an average, and none of them is a quote for you. The in-state grants are what each campus reports, on average, for families at that income who received aid. The top income range includes everyone over $110,000, so a family just over that often gets more aid than this shows.
| The family | Default | With a plan | Difference |
|---|---|---|---|
$75,000 income · in-state $0 in a 529 · $2,000 cash · $500 a month We assume $31,474 a year in grants — what this campus reports families in this income range receive. | $30,960 | $30,960 | $0 |
$125,000 income · in-state $100,000 in a 529 · $30,000 cash · $500 a month We assume $9,761 a year in grants — what this campus reports families in this income range receive. | $117,933 | $111,833 | $6,100 mostly tax credits |
$75,000 income · out-of-state $0 in a 529 · $2,000 cash · $500 a month We assume $0 a year in grants — no institutional need-based grant — UC out-of-state students are not eligible. | $627,440 | $536,840 | $90,600 mostly interest …but the parents would have to borrow $264,323. That is more than this income could repay — see below. |
$125,000 income · out-of-state $100,000 in a 529 · $30,000 cash · $500 a month We assume $0 a year in grants — no institutional need-based grant — UC out-of-state students are not eligible. | $454,287 | $412,167 | $42,120 mostly interest |
The nine campuses
Published in-state prices differ across the system: $7,654 a year separates the cheapest campus from the most expensive. Each campus links to its own page.
What a plan is worth here, and to whom
What we sell is the payment plan itself: $99, built by the same calculations that priced these 162 scenarios. What one is worth depends on which family you are.
A California family under $180,000 that pays from savings stands to gain the tax credit, and the $4,000 rule above is how to get it. Nothing stops a careful family from doing that alone; this article just told you how. A plan does the arithmetic with your own numbers: which dollars to pay from outside the 529 each semester, checked against the loan limits, the income where the credit runs out, and your award letter.
The same family above $180,000 has lost the credit, so everything turns on whether they borrow. If they pay from savings, they have the least to gain, as the section above showed. For that family, a plan offers certainty rather than savings: it checks that nothing has been missed, sets out the borrowing options in case something changes mid-degree, and puts four years of payments in one place. The decisions are large even where the gain is small, and there is real value in making them with confidence instead of a nagging doubt.
The calculation changes for the in-state families who borrow, 56 percent of our in-state scenarios. Below $180,000 they have both problems: the credit and the interest. Above it, the interest is the whole problem. Choosing which loans to take each year, and which savings to spend first, is harder to do by hand than the $4,000 rule. Out-of-state families face the biggest version of the problem: how they borrow across four years, in the student's name and the parents', was worth a median of $74,531. This is what a payment plan is for.
For 28 percent of the scenarios we priced, the debt was more than the family could repay. There, the most useful thing a plan can do is say so plainly, in April, while the family can still choose a different school. Ninety-nine dollars is a cheap way to learn that; a signed promissory note is an expensive one.
Build your plan →Guides to other systems
We do the same work for each system. The systems are built differently, so what is true of one is often false of another, and we write each guide from its own numbers.
Where the prices come from: the U.S. Department of Education's College Scorecard, carried forward to 2027. SmartTuition.ai worked out what each family described here would pay. SmartTuition.ai is not affiliated with, endorsed by, or sponsored by any institution named here.