In California a child must turn 5 on or before September 1 to start kindergarten, and a child who turns 4 on or before September 1 is eligible for transitional kindergarten. But eligibility and readiness are different questions. Readiness is mostly about self-management — can your child follow a two-step direction, separate from you calmly, sit with a task for ten minutes, and ask an adult for help — and those are the skills a pre-K year is built to develop.
Key takeaways
- •California kindergarten entry requires turning 5 by September 1; TK uses the same date one year earlier — a child who turns 4 by September 1.
- •The strongest readiness predictors are self-regulation and language, not letter or number drills.
- •Tustin Unified enrollment opens months before the school year — check dates in the winter, not August.
- •Newport Ave Preschool & Kindergarten runs pre-K and transitional kindergarten on one Tustin campus as well as our own Private Kindergarten
- •A child who misses the September 1 cutoff by weeks is not behind — a strong TK year is often the better start.
What does "ready" actually mean to a kindergarten teacher?
Ask a kindergarten teacher what they wish incoming children could do, and academics come third. First is self-regulation: handling a transition without melting down, waiting a turn, recovering from a small disappointment. Second is language: following a two-step instruction, telling an adult what's wrong, listening to a story without wandering off. Third — and it's genuinely third — is knowing letters, sounds, and numbers to 10.
How do TK and kindergarten fit together in Tustin?
Transitional kindergarten is a bridge year for children who are four, giving them a full year of structured school experience before kindergarten. For a child with a summer or late-August birthday, that extra year is often the difference between arriving in kindergarten as the youngest and least settled child in the room and arriving as one of the confident ones. Our campus runs transitional kindergarten alongside pre-K, so the step up happens in a building your child already knows.
What can we work on at home this year?
Small, boring, repeatable things beat flashcards. Let your child manage their own jacket, backpack, and lunch container rather than doing it for them at the door. Read together daily and ask one question about what happened, not what letter starts the word. Give two-step directions on purpose — "put your shoes in the closet and bring me your water bottle" — and let them execute it without a reminder. Practice a real goodbye: a short, cheerful one, without lingering.
When do we need to register?
Tustin Unified opens kindergarten and TK registration well ahead of the school year, and the popular neighborhood schools reach capacity early. Put a reminder in your calendar for the winter, gather the paperwork — birth certificate, immunization record, proof of residence — before you need it, and confirm your school of residence on the district's boundary map rather than assuming the closest campus.
enrichment programs included in the day
Frequently asked questions
What is the cutoff date for kindergarten in California?
A child must turn 5 on or before September 1 to enroll in kindergarten that school year. Transitional kindergarten works off the same date one year earlier: a child who turns 4 on or before September 1 is eligible for TK, and since the 2025–26 expansion that applies to every four-year-old in the state.
Should I hold my summer-birthday child back a year?
It depends far more on self-regulation than on age. A Summer-birthday child who separates easily and manages transitions is usually fine; one who is still struggling with both often benefits enormously from a TK year. Ask your child's current teacher — they see the comparison every day.
Does my child need to read before kindergarten?
No. Recognising most letters and their sounds, writing their own name, and counting to 10 or 20 puts a child comfortably in range. Reading is taught in kindergarten; the classroom expects to do that work although many of our children have beginning reading skill as we work with children at their individual levels and include intro reading in our TK Program.
How do you prepare children for the jump?
Pre-K and TK here run on a real school rhythm — arrival routine, focused work blocks, group time, independent clean-up — so the structure of a kindergarten day is already familiar before day one.
Wondering whether your child should start TK or wait? Call (714) 730-3424 and talk it through with someone who watches this transition every year — or book a morning tour and see the pre-K room mid-activity.