How to split holidays in a custody schedule, and keep the split every year

A holiday schedule only works if everyone agrees what wins. The usual order is: a one-off change both parents agreed for a specific date beats the holiday schedule, and the holiday schedule beats the regular rotation. Write that order down. Without it, every holiday that lands on the other parent's regular weekend becomes a negotiation about which document counts.

The second thing to write down is what happens after the holiday. Usually the regular rotation simply resumes on its normal day, even if that means one parent has the children two weekends running. Some families add a make-up rule instead. Either is fine; leaving it unsaid is not.

The most common pattern: one parent has a holiday in even years, the other in odd years, and it flips every year. It is simple, it is fair over any two-year stretch, and it needs no annual conversation as long as you write down who starts. "Parent A has Thanksgiving in even-numbered years" settles the question permanently. "We'll alternate" settles it until someone's memory of last year differs from the other's.

Alternating works best for holidays that are a day or a long weekend: Thanksgiving, Easter weekend, the Fourth of July, Halloween, New Year's. Many families pair them so each parent gets a balanced set each year — if one parent has Thanksgiving in even years, the other has Christmas Day in even years.

Some holidays are really two days. Christmas Eve and Christmas Day is the obvious one: one parent has the Eve, the other has the Day, and they swap each year. That gives both parents part of the holiday every year, which many families value more than having all of it every other year.

Splitting a single day in half — morning with one parent, afternoon with the other — is possible, but it costs a handoff on the day itself and it only works if both homes are close. It tends to suit younger children and families who live near each other, and to be outgrown as children get older and want one unhurried day.

Some days do not alternate. Mother's Day goes to the mother and Father's Day to the father, every year, regardless of whose weekend it is. Many families do the same for each parent's own birthday, and for a religious or cultural holiday that matters to one parent and not the other.

The child's birthday is the one families disagree about most. The options are alternating by year, splitting the day, or leaving it to the regular schedule and letting the other parent have a separate celebration on a nearby day. All three work; what does not work is deciding each year.

School breaks are longer, so they are usually split rather than alternated. Winter break is commonly divided into two halves, with the half containing Christmas alternating each year. Spring break is often alternated whole. Summer is often handled as blocks — each parent gets one or two weeks of uninterrupted time with the regular rotation resuming in between — with a deadline in the spring by which each parent names their weeks.

Two details trip people up. Winter break crosses New Year, so "even years" needs a definition: say whether the break belongs to the year it starts in. And school breaks move with the school calendar, so a plan that names fixed dates will drift; tie them to the school's published calendar, or agree to confirm the dates each year.

Most holiday disputes are about when a holiday starts and ends, not who has it. "Thanksgiving" can mean Thursday, or Wednesday after school to Sunday evening. Write it out for each holiday:

1. The first and last day it covers, and the exchange time at each end.
2. Who has it in even years and who in odd years, or who has it every year.
3. What happens when two holidays overlap — Christmas Day inside winter break, for example. The usual rule is that the shorter, more specific holiday wins.
4. Where the exchange happens, if travel is involved, and who drives.
5. What happens to the regular schedule afterwards.

In the Co-parenting app, each child's holiday schedule lives on the Holidays tab, beside the regular custody schedule it overrides. A child needs an agreed custody schedule first. One parent proposes the holiday schedule and signs it; it takes effect once the other parent countersigns, and then applies every year without being agreed again. A holiday schedule set up before the other parent has joined is in force on one parent's signature and shown that way, and the other parent can countersign it later.

The proposal starts from a list of common US holidays, each worked out for every year: New Year's Day, Martin Luther King Jr. Day, Presidents' Day, Easter weekend (Good Friday to Easter Sunday), Mother's Day, Memorial Day, Father's Day, Independence Day, Labor Day, Halloween, Thanksgiving (Thursday to Sunday), Christmas Eve, Christmas Day and winter break (December 20 to January 3). For each one you tick, you choose who has it in even years and who in odd years — the same parent in both for a fixed holiday, or "Regular schedule" to leave a year to the rotation. Mother's Day and Father's Day start unticked, because the app does not know which parent is which. You can add your own entries by name, as a single date or a date range: a birthday, a spring break, a summer block.

The hub, not either parent's phone, works out which parent has each day. A countersigned swap still overrides the holiday schedule, and the holiday schedule overrides the regular rotation. Where two entries cover the same day, the shorter one wins, so Christmas Day takes precedence over winter break; and a break that crosses New Year belongs to the year it starts in, so one parent has the whole of it. Holiday days appear on the shared calendar like any other custody day.

Changing the schedule is a new proposal that also needs both signatures; until it is countersigned, the one in force stays as it is. Ending it is a proposal with nothing ticked. Every version that has been in force is kept, and the holiday schedule history is part of the full record either parent can export.

It works in whole days. A morning-and-afternoon split on one day cannot be entered; split the pair instead, as the separate Christmas Eve and Christmas Day entries do.

Your own entries are the same calendar dates every year. A spring break or summer block that moves with the school calendar, or a holiday that follows a lunar or religious calendar, needs its dates updated in a new proposal when they change, or handling as a one-off swap for that year.

And it keeps what you agreed, not what your order says. If your order sets out holidays, enter what it says, and if the two ever differ, the order is the one that counts.

• Co-Parenting
• Calendar
• Family Records

Every app in the library is included with the household plan. Install the ones this guide uses and skip the rest.

• The co-parenting apps compared, by what each is for
• 2-2-3, 2-2-5-5, alternating weeks: the custody schedules, explained
• How to document co-parenting communication if it may end up in court
• What information should co-parents share, and what should remain private?