One Au Pair, Two Homes: Sharing a Caregiver Across Co-Parenting Households

Rachel and Mark had been divorced for two years, and the one thing they agreed on without argument was Lucía. Their au pair had arrived in September. She was gentle with their daughter, she was on time, and both parents trusted her. So when the custody schedule changed in November, they each did what seemed reasonable: they sat down with Lucía and drew up a rota for their own home.

Rachel's rota was 27 hours a week. Mark's was 22. Each of them looked at their own number, saw that it was well under the limit, and moved on. It took a school-holiday week and a tired, quiet au pair before anyone added the two together. The total was 49 hours, and the federal weekly cap for a US au pair is 45.

Nobody had broken a rule on purpose. Each parent had checked their own home and neither had checked the week. That gap is the central problem of this article. Sharing an au pair across two households is allowed, it can be good for the children, and it fails in a predictable place: the point where two sets of reasonable plans were never laid on top of each other.

🌍 Country-specific sections. This guide covers host families in the United States (J-1 au pair program) and Germany. The two systems differ on hours, rest days and housing. Where a rule is not spelled out in the official text, we say so and tell you who to ask. Always confirm your own case with your placement agency, and in Germany with your local immigration office (Ausländerbehörde).

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Can Divorced Parents Share an Au Pair?

Short answer: nothing in the written rules forbids it, but nothing in them describes it either. Both countries' rules were written with one household in mind, and co-parenting households sit in a gap between the lines.

What the US rules say

The au pair category of the J-1 program is governed by 22 CFR § 62.31. The regulation describes a participant who lives with a host family and takes part in its home life. It does not address single-parent hosts, and it has no provision on two households. The only related text is a reporting duty: sponsors must report situations in which an au pair was placed with more than one host family.

What sponsors do in practice is a matter of sponsor policy, not federal law. One sponsor's published guide for co-parents, Go Au Pair, says there is no regulation that prevents divorced parents from sharing an au pair, and that the au pair needs one designated primary residence. It also says both parents go on the account and that both homes need an in-home interview and tour by the local representative. Other sponsors may handle it differently, so ask yours before you apply, not after you have matched.

What the German rules say

In Germany, the Federal Employment Agency's leaflet for au pairs and host families (April 2023) counts single parents as a family, provided at least one child under 18 permanently lives in the household. It also says the au pair normally gets their own room inside the family's home. It does not mention shared custody or a child who lives in two homes.

That wording is why German co-parents should ask early. Whether a child who spends alternate weeks in each home counts as "permanently" living in either one is not answered by the leaflet. Ask your agency, and for au pairs from outside the EU, the immigration office, before you sign.

Key takeaway: In neither country is a two-household arrangement forbidden by the text, and in neither country is it described. Your sponsor (US) or agency and immigration office (Germany) decide how your case is registered. Get their answer in writing before the au pair travels.

One Official Home, Two Real Ones

The au pair's paperwork names one host family. Everything else has to be built around that fact.

Pick the primary home on purpose

In the US, the sponsor places the au pair with a host family and issues the program paperwork; Go Au Pair's guidance is that the au pair has one designated primary residence. In Germany, the written au pair contract is between the au pair and one host family, and the leaflet also requires that contract to exist before the stay begins.

So the first decision is which parent's home is the official one. Common ways to decide:

• Where the au pair sleeps most nights. The simplest answer, and the easiest one to defend.
• Where the child is more often. Sensible when the schedule is lopsided, say 5/2 rather than 50/50.
• Which parent can take on the paperwork. The host parent has real duties: attending sponsor events in the US, paying insurance in Germany, signing the contract.

Whichever you choose, the choice says nothing about who is the "better" parent. It is an administrative home, and it helps to say that out loud at the start.

The room question

US sponsors may not place an au pair with a family that cannot provide a suitable private bedroom, under 22 CFR § 62.31(e)(6). If your au pair will also stay overnight in the second home, Go Au Pair says a private bedroom is required in both. A sofa in the study, even a comfortable one, will not do.

Germany's leaflet says the au pair generally has a room of their own inside the family's home and eats the same food as the family. It speaks about one home. If the au pair would stay overnight in a second household, raise that with your agency rather than assuming it is covered.

Know the limits on the second home

The German leaflet makes one point you should not skip. In discussing the family's own holiday, it says that if the au pair does not travel with them, working for another family such as neighbors or acquaintances is not permitted. That sentence is about holidays, but it shows how the system thinks: the au pair belongs to one host family.

In a co-parenting setup, the second parent is not "another family" in the everyday sense. Whether the program treats it that way is something only your agency can answer. The US regulation likewise speaks of placement with "a host family" in the singular. Ask directly: "Can the au pair care for our child in the other parent's home?" and get the reply in an email.

Making the Hours Work Across Two Households

This is where most arrangements go wrong, so it gets the most space. The limits belong to the au pair, not to either home.

The caps follow the au pair

The US cap is written as hours of child care in any one week. The German leaflet counts household tasks, including looking after minors, toward its limit, and adds that going over needs prior agreement and must be made up with time off. In both cases the limit is the au pair's, so hours worked in either home land in the same weekly total.

Regulations change. The figures above reflect the sources named in the table as of the publish date. Confirm current requirements with your placement agency or immigration authority.

A shared ledger beats two calendars

The fix for the Rachel-and-Mark problem is boring and works: one weekly total that both parents can see. Here is a sample week for a school-age child on a split schedule. The numbers are an illustration, not a recommendation.

Neither parent asks for much, and the week is comfortably inside the US cap and just inside the German one. Now add one evening of babysitting at each home, three hours each. The week is 34 hours. That is fine in the US, and over the German limit of 30, even though neither parent has asked for more than 19 hours.

How custody patterns map onto a work week

The two common custody shapes behave differently:

1. Alternating weeks. The child is with one parent for seven days, then the other. Hours bunch up in the "on" home and drop to nearly nothing in the "off" home. This is easy to track, but the au pair needs a plan for the quiet weeks: language classes, free time, and a clear rule that the other home does not fill the gap with extra duties.
2. 2-2-3 rotation. The child spends two days with one parent, two with the other, then a long weekend that alternates. Handovers are frequent, so the risk is the middle of the week: short, split shifts and a lot of travel between houses.

For both, ask the same four questions before you build the rota:

• What does the au pair do when the child is at the other home? Decide it in advance, so that a quiet day is a day off or a class, not an invitation to add duties.
• Who covers the handover? Treat a handover that takes 40 minutes of driving as working time unless your sponsor or agency tells you otherwise.
• Whose day off is it? Rest days have to land on days that are free in both homes. An off day that one parent quietly uses for "just an hour" is not a day off.
• What happens in school holidays? The extra hours land somewhere. Decide where, in advance, and check against the cap.

The post on the 45-hour week and 10-hour day shows how the US limits are counted in detail. The German 30-hour week is counted the same way, with its own limits in the table above.

Who Pays for What

Money is the second place two homes drift apart. Neither country's rules tell co-parents how to divide costs, so the sensible approach is to split by category and write it down. What the rules do fix is what the host family owes.

What the host family owes

A split that survives a bad month

Go Au Pair notes that parents decide between them how the stipend is paid and how room and board are shared, and recommends putting everything in writing. A written split might cover:

• The stipend: one parent pays the au pair, the other reimburses monthly, or each pays a fixed share. One payer means one clear record.
• Room, board and utilities: these usually follow the primary home. If the second home takes a larger share of the week, a balancing payment can make the split fairer.
• Education and course costs: a fixed share, agreed once, rather than argued over each time.
• Transport: who pays for the car, the bus pass or the fuel on handover days. Agree who owns the cost.
• Shared expenses: groceries for the child, activity fees, a phone top-up. Receipts in one place and a monthly settle-up.

Writing this down is not a sign of distrust. It protects the au pair from being caught in the middle and protects the two of you from re-litigating small amounts. For the broader picture of what hosting costs in a normal single-household year, see what an au pair really costs in Germany.

One Set of Rules, Two Front Doors

Children cope with different houses, and different house rules are usually fine for them. An au pair is in a different position, because she works in both and cannot ask which rule applies where.

Keep the non-negotiables identical

You do not need identical homes. You do need identical answers on the things that touch safety and the au pair's working life:

1. Allergies, medication and bedtime routines. If a child has an allergy plan, both homes follow the same one.
2. Screen time and food. Pick the two or three rules that matter and make them the same everywhere.
3. Discipline. The au pair should not be the one who has to guess what each parent would do.
4. Driving and outings. Who may drive, where, and with which car seat.
5. Emergency contacts. Both parents, plus one local contact for each home.

A shared set of house rules is a good starting document, and a written profile for each child should be the same in both homes.

Keep the au pair out of the middle

The most corrosive habit in co-parenting households is routing messages through the au pair. Go Au Pair says explicitly that she shouldn't be asked to relay messages between parents, take sides or comment on parenting decisions. She is a young adult living in a house that is not hers, in a country that may not be hers either.

Parents talk to each other directly, even if it is only a one-line note about Thursday's swimming bag. A written channel that both parents and the au pair can read removes the need for a courier.

Key takeaway: The au pair's job is the children. It is not the relationship between their parents. If you find yourself saying "just tell her that I..." stop and send the message yourself.

Check in with three people, not two

A weekly conversation with the au pair is standard advice, and a short weekly check-in works best when it is held jointly. With two homes, add a monthly review where both parents and the au pair look at the previous month's hours together. If something has gone wrong, involve the local coordinator or agency early rather than late. Go Au Pair notes that a rematch with a new host family may be considered if issues cannot be resolved.

Making the Shared Schedule Visible

Everything above comes down to one thing: both parents must see the same week. That can be a spreadsheet, a shared paper calendar by each fridge, or an app. What matters is that there is a single place where hours are entered once and totaled automatically, with both parents seeing the same entries.

This is one of the genuine use cases for a tool like AuPairSync: a shared calendar that shows the whole week across both households, so a handover day never turns into a coverage gap, and a running view of hours that makes the 45 or 30 limit visible before it is crossed. If you start tracking shared expenses there too, the settle-up at the end of the month becomes a short job instead of a long argument.

A Checklist Before You Start

Run through this before the au pair arrives, and again whenever the custody schedule changes:

• Ask your sponsor or agency: Is a two-household arrangement accepted, and which home is the official one? Get the answer in writing.
• Settle the rooms: Where does the au pair sleep? If two homes, is a private room available in each?
• Build one rota: A single week that both parents sign off, with a running weekly total.
• Check the caps: 45 hours and 10 per day in the US; 30 hours and 6 per day in Germany. Include babysitting and handovers.
• Protect days off: Rest days must be free in both homes.
• Write the money split: Stipend or pocket money, course costs, transport, shared expenses.
• Agree the shared rules: Safety and routines identical, everything else can differ.
• Set a direct channel for parents: The au pair is not the messenger.
• Schedule a monthly review: Hours, costs, and how the au pair is doing.

If the arrangement is new for the child too, this is also a good moment to read how to help children through a change of au pair, because the same ideas about continuity apply when anything shifts.

The Bigger Picture

Families split, and then the logistics split with them. What was one kitchen table becomes two, and the child learns a new rhythm of bags, handovers and different bedtimes. In that rhythm, one person who is the same in both houses can be an anchor: the one who knows the swimming day, the favorite book, the nervous face before a school test.

That anchor only holds if she is not stretched across the gap. An au pair who is over her hours, unsure whose rule applies, or asked to carry messages between two adults will not be steady for anyone. The families this works for are the ones who treat the au pair's week as one week, and who do the dull work of writing it down before it is needed.

Sharing one au pair across two homes? Download AuPairSync to keep one schedule, one message thread and one set of expenses that both parents can see.