Private Preschool vs. Free TK in San Jose

If your child is turning four, you’ve probably heard the pitch from another parent at the park: “Why pay for preschool when TK is free?” It’s a fair question. California now offers Transitional Kindergarten to every four-year-old at no cost, and for a lot of San Jose families that changes the math on private preschool.

But “free” and “right for your child” aren’t always the same thing. TK is a real, well-funded program with credentialed teachers and a guaranteed kindergarten seat at the end of it. It’s also built like school, on a school-day and school-year schedule, which doesn’t fit every family’s week. So before you assume free wins by default, it’s worth understanding what each option actually gives you.

We run a private preschool in South San Jose, so yes, we have a side. We’re going to be straight with you anyway, because the families who tour us and choose us do it with eyes open, and the ones for whom TK is the better fit deserve to know that too.

TK is free, but it’s school, not childcare: It runs on the academic calendar and the school day, and it starts the year your child turns four. Before that, and outside school hours, you’re still arranging care.

Private preschool covers what TK can’t: Year-round hours from 7 AM to 6 PM, enrollment from six months old, and a consistent environment your child already knows. For working parents, that gap is the whole decision.

Cost isn’t the whole story: Childcare subsidies can make private preschool low-cost or even free for qualifying families. So “free TK” and “paid private” sit closer together than the sticker price suggests.

What Is Transitional Kindergarten in California?

Transitional Kindergarten, or TK, is a free year of public school for four-year-olds. California created it back in 2010 as a bridge for kids who were a little too young for kindergarten, and over the last few years the state expanded it until every four-year-old qualified. The rollout finished, so it’s stable now.

Think of TK as the first year of a two-year kindergarten path. It uses a modified, play-based version of the kindergarten curriculum, and it lives inside the K-12 system at your local public elementary school. After TK, your child moves into traditional kindergarten the next year.

Who qualifies for TK in 2026-27

For the 2026-27 school year, a child qualifies for TK if they turn four by September 1, 2026. That’s birthdays between September 2, 2021 and September 1, 2022. If your child’s birthday lands after that cutoff, they wait for the following year.

TK is optional, the same way kindergarten is optional in California. Plenty of families use it as a free extra year of early learning. Plenty of others keep their child in a preschool they already love. Neither choice is wrong.

What TK costs and who pays for it

TK is a public-school grade, so there’s no tuition and no income requirement. Every qualifying four-year-old in San Jose can attend regardless of what a family earns. The state funds it through the same formula that pays for the rest of public school.

So the headline is true. The TK year itself is free. The part that doesn’t make the headline is everything that sits around it, which is where families start doing real math.

How TK Actually Works Day to Day

A free program is easy to say yes to in theory. The day-to-day reality is what tells you whether it fits your family, so here’s how a TK year tends to run.

The schedule and the school-year calendar

TK follows the public school calendar. That means summers off, a winter break, a spring break, and the same holiday closures as the rest of the district. It also runs on a school day, not a workday. Many districts now offer a full school day, and some add before-care or after-care, but hours and availability vary by school and the extended care sometimes carries a fee.

For a parent who works a standard schedule, that calendar creates a string of gaps. Who has your child at 7 AM before TK opens? Who picks up at dismissal? What’s the plan for the ten or eleven weeks of breaks across the year? None of those are dealbreakers. They’re just real, and they’re worth pricing out before you call TK “free.”

Class sizes, teachers, and curriculum

TK is taught by credentialed teachers who hold extra early-childhood units, which is a genuine strength of the program. The state targets a 1:12 adult-to-child ratio and has been funding a push toward 1:10. Curriculum has been moving steadily toward structured, play-based learning rather than worksheet-style academics, which is the right direction for four-year-olds.

That’s a solid setup. If your child is ready for a school environment and your work calendar can absorb the school calendar, TK delivers a lot for zero dollars. The question is whether “a strong year for your four-year-old” is the same thing as “the right setup for your family,” and for many San Jose households, it isn’t.

Where Private Preschool Fits for San Jose Families

Here’s the piece that gets lost in the free-versus-paid framing. TK and private preschool aren’t really competing for the same job. TK covers one academic year for a four-year-old. A private preschool like ours covers the years before that, the hours around it, and the weeks the school calendar leaves open.

Care that starts at six months, not age four

TK begins the year a child turns four. If you have an infant or a toddler, TK isn’t an option yet, full stop. Our Minnows program takes babies from six months, with a 1:3 ratio in the infant and toddler rooms, so families who need care early build a relationship with one school instead of stitching together arrangements until age four.

That early relationship matters more than it sounds. By the time TK eligibility rolls around, a child who’s been with us since infancy already knows their teachers, their classroom, and their routine. Starting over somewhere new at four isn’t automatically better just because it’s free.

One campus from infancy through kindergarten

We’re built as a single path from six months through kindergarten, all at our Jacksol Drive campus in the 95124 area of South San Jose. A child can move from the infant room up through our four preschool classrooms, Pollywogs, Starfish, Octopus, and Dolphins, and into our private kindergarten without ever changing schools.

So a four-year-old’s options aren’t only “stay home and pay” or “leave for free TK.” For a family already with us, staying means continuity through the whole early stretch, with the same team that’s watched their child grow. For a family just starting to look, it means one place to solve childcare for years, not one academic calendar to patch around.

What to Expect From Each Choice: An Honest Comparison

Set the labels aside and look at what your week actually looks like under each option. That’s the comparison that matters, and it usually comes down to two questions.

If your family needs full-day, year-round care

This is where private preschool pulls ahead, and it’s not close. We’re open 7 AM to 6 PM, Monday through Friday, year-round. Drop off before work, pick up after, no scramble during summer or winter break. For two working parents in Cambrian, Willow Glen, or Almaden commuting toward downtown San Jose or the South Bay tech corridor, that coverage is the entire point.

TK can be part of a working-family setup, but rarely the whole of it. You’re usually adding wraparound care, summer arrangements, and break coverage on top. Once you add those pieces back in, the free program starts to look like one component of a larger, more complicated plan.

If continuity and a familiar environment matter

Some four-year-olds thrive on a fresh start. Others do their best work when the people and the place stay steady. If your child is already settled somewhere they’re known, pulling them out for a new building, new teachers, and a new routine is a real tradeoff, even when the new option costs nothing.

There’s also the kindergarten question on the back end. A TK year leads into public kindergarten the following fall. A child finishing preschool with us can continue into our private kindergarten on the same campus, with the same approach and many of the same faces. Whether that continuity is worth it depends on your child, and you’re the best judge of that.

The Cost Question: Is Free Always Cheaper?

Free is a powerful word. But the honest accounting is a little more involved than tuition versus zero, and it can land closer to even than parents expect.

What “free” TK doesn’t cover

The TK classroom is free. The hours before and after it, the summer, and the breaks usually aren’t. Once you price wraparound care and cover the weeks the district is closed, the all-in cost of making TK work for a full-time working family is a real number, not zero.

That’s not an argument against TK. It’s just the math nobody puts on the flyer. Compare the true all-in cost of TK-plus-coverage against full-day private preschool, and the gap narrows. Sometimes it closes.

How subsidies make private preschool affordable

Here’s the part a lot of families never find out: private preschool isn’t always the paid option. We’re a listed provider with the major Santa Clara County subsidy programs, including Choices for Children and Go Kids, along with CalWORKs child care. Qualifying families attend at little or no cost.

So the real comparison isn’t always “free versus expensive.” For many San Jose families, it’s “free TK with coverage gaps” versus “low-cost or free full-day private preschool with none.” And new families with us currently get $1,000 off their third month on top of that. Worth a conversation before you assume the budget decides it for you.

How to Decide What’s Right for Your Child

There’s no universal answer here, and anyone who gives you one is selling something. What there is, is a short set of questions that cut through the noise.

Questions to ask on any tour, TK or private

Whether you’re touring a TK classroom at your local elementary or visiting us, ask the same things. What are the real hours, and what happens before and after them? How are summers and breaks handled? What’s the ratio, and how long do teachers stay? What does a normal day actually look like for a four-year-old in this room?

The answers tell you more than any brochure. And asking the same questions everywhere lets you compare honestly instead of comparing a polished pitch against a vague memory.

You don’t always have to choose just one

California’s preschool system is set up as a mixed-delivery model on purpose, which means families have more flexibility than the either-or framing suggests. Some families do a TK year and keep a private program for wraparound care. Some keep a younger four-year-old in preschool a bit longer and start TK later. Some stay private straight through to kindergarten.

The point is that “free TK” and “private preschool” aren’t two locked doors where picking one slams the other. They’re pieces you can arrange around your child and your schedule. Start from what your family actually needs each day, then see which pieces fit.

What Makes Building Kidz Different

If you’ve read this far, you already know we won’t tell you TK is bad. It isn’t. What we’ll tell you is what we offer that a TK classroom doesn’t, so you can weigh it for yourself.

Performing arts and bilingual immersion, every day

Music, dance, and theater aren’t a seasonal special here. They’re built into every classroom day, at every age, and they end in two Broadway-style productions a year performed by the kids. That daily stage time builds vocabulary, memory, and the kind of confidence parents tell us shows up at kindergarten and never leaves.

We also run daily Spanish immersion woven into songs, routines, and circle time. Your child’s ears wire for two languages during the exact window when that comes most naturally. Most TK classrooms offer English with some home-language support, and a few offer dual-language immersion, but daily bilingual exposure from infancy onward is core to how we teach, not an add-on.

Small ratios, subsidies, and a South San Jose location

Our infant and toddler rooms run a 1:3 ratio, and our younger preschool classrooms run 1:8, so our youngest learners get close, consistent attention from teachers who know them by name. We’re a nut-free facility, family-owned since 2019, and we sit right beside Houge Park, so outdoor play and nature walks are part of the daily routine, not a field-trip event.

And because we partner with the major Santa Clara County subsidy programs, quality care here is within reach for families across Cambrian, Willow Glen, Almaden, and South San Jose, not just those paying full freight. The best way to see whether we’re the right fit is to walk the building. Schedule a tour and we’ll show you every classroom and answer every question. Call us at (408) 559-1003.

Frequently Asked Questions

Is TK really free in California?

Yes. TK is a public-school grade, so there’s no tuition and no income limit. Every child who meets the age cutoff qualifies regardless of family income. The cost that families overlook is wraparound care, summers, and breaks, which the free TK year doesn’t cover.

What’s the TK age cutoff for 2026-27 in San Jose?

A child qualifies for TK in 2026-27 if they turn four by September 1, 2026, meaning birthdays from September 2, 2021 through September 1, 2022. Children with later birthdays wait for the following school year. TK is optional, so qualifying doesn’t mean you’re required to enroll.

Can my child do both TK and private preschool?

Often, yes. California’s mixed-delivery model means many families pair a TK year with private wraparound care, or keep a younger four-year-old in preschool longer before starting TK. The right combination depends on your child’s readiness and your work schedule, which is exactly what a tour conversation helps sort out.

Is private preschool worth it if TK is free?

It depends on what your family needs. If you need full-day year-round care, enrollment before age four, or continuity in a familiar environment, private preschool covers ground TK can’t. If your child is four, ready for school, and your calendar fits the school calendar, TK may be all you need.

Does Building Kidz accept childcare subsidies?

Yes. We’re a listed provider with Choices for Children, Go Kids, and CalWORKs child care, among other Santa Clara County programs. Qualifying families attend at little or no cost. Bring your paperwork to a tour and we’ll walk through how it applies.

What ages does Building Kidz enroll?

We enroll children from six months through kindergarten, all on one South San Jose campus. That includes infant and toddler care, four preschool classrooms, and a private kindergarten, so families can stay with one school through the entire early-childhood stretch.

Related Articles

• Preschool in San Jose: Bilingual and Performing Arts
• Private Kindergarten in San Jose
• Daycare in San Jose: Infant and Toddler Care