The 70/30 Custody Split
Primary parent has ~70% of overnights, secondary parent has ~30%. Typical when one parent's work or distance limits weekday involvement.
by The CoreParent Co-Founders · Last updated
In short
One parent has the children for most school days and the other has regular weekend time. In the calendar shown here, that is 10 of 14 days with Parent A and 4 of 14 with Parent B, about 70/30.
How it works
In the calendar shown here, the primary parent (A) has Monday through Friday and the secondary parent (B) has every Saturday and Sunday: 10 of 14 days to 4, about 71/29. Another common way to reach about 70/30 is every other weekend from Friday through Sunday plus one weekday overnight in the other week. It is common when parents live in different metro areas.
A two-week example
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| Week 1 | A | A | A | A | A | B | B |
| Week 2 | A | A | A | A | A | B | B |
Both weeks are the same: Parent A has Monday through Friday and Parent B has every Saturday and Sunday. Other layouts reach the same split, for example every other Friday-to-Sunday weekend plus one weekday overnight in the other week.
By the numbers
- Cycle: 1 week, the same every week.
- Time with each parent: Parent A 10 of 14 days, Parent B 4 of 14 days (71/29).
- Exchanges: 2 per week.
- Longest stretch: Parent A 5 days in a row, Parent B 2 days in a row.
What makes it work
- One clear home base for school. The primary home handles school mornings, homework, and most activities, which keeps the week simple.
- Reliable time with the other parent. Whatever days the secondary parent has, keeping them steady matters more than the exact number.
- Staying involved in school. The secondary parent can join conferences, events, and the school's email list even without school-night time.
Pros and cons
- Minimal weekday disruption
- Clear primary household for school and activities
- Works when secondary parent lives further away
- Secondary parent misses most weekday school events
- Can entrench the 'weekend parent' dynamic if not intentionally addressed
Best for
Families where the secondary parent lives in a different city or works rotating shifts.
By age
General guidance only. Every child is different, and what fits can change as they grow.
- Under 3: Five days between visits is long at this age. Child-development guidance generally favors short, frequent time with each parent at this age, so short weekday visits help.
- 3 to 5: Workable with steady weekends and a midweek call.
- 6 to 12: Common when parents live farther apart. School stays in one home, and weekends stay with the other.
- Teens: Teens may want flexibility around weekend plans. Agree on how swaps work.
Exchanges, holidays, and summer
- Exchange times: In the layout shown, two a week: weekend pickup, and the return on Sunday evening or Monday at school.
- Holidays: Most plans lay a holiday schedule over the regular rotation, with major holidays alternating by year. The holiday plan wins when they conflict, and the regular schedule picks back up after.
- Summer: Summer is a common time to rebalance, for example with a few weeks in a row with the secondary parent.
Common variations
- Every weekend: The exact layout shown here, with more on scheduling around weekend work.
- Every other weekend: Fewer weekends for the secondary parent, about 80/20.
- Long weekend: Thursday through Monday every other week, also about 70/30.
Common pitfalls
- The weekend-parent role. If one parent only has weekends, they can feel like a visitor. Share some routines, not just outings.
- Travel time. When homes are far apart, long drives eat into the time. Meet halfway or plan around traffic.
- Missed school news. The secondary parent can miss notices and deadlines. Share them as they come in.
Frequently asked questions
What does a 70/30 schedule look like?
One common layout is shown here: Parent A has Monday through Friday and Parent B has every weekend, 10 of 14 days to 4. Another is every other weekend plus one weekday overnight in the off week.
Is 70/30 exactly 70 and 30 percent?
Close. 10 of 14 days is about 71%, and 4 of 14 is about 29%.
When do families choose 70/30?
Often when one parent lives farther away, works rotating shifts, or has less availability on school days.
How many exchanges are there?
In the layout shown, two a week: one at the start of the weekend and one at the end.
Put it on your calendar
In CoreParent, pick 5-2 (Every Weekend) in your parenting plan for the layout shown here, choose who has the weekdays, and your calendar fills in who has the kids for the next 90 days. Share it with your co-parent, or keep it to yourself.