Boundaries with in-laws: how to set them together, kindly

To set boundaries with in-laws, start with each other, not with them. Agree first, just the two of you, on what you want: how often you visit, what stays private, who decides what. Then each of you tells your own family, kindly and as a “we,” and you both stick to it.

That order matters more than a perfect script. In-law friction can start closer to home than it looks: two people who grew up with different ideas of normal (one family drops by unannounced, the other books a visit three weeks out) and haven’t compared notes yet.

One thing to get straight first: a boundary here is something the two of you will do (“We head home by nine on school nights”), not a rule for someone else (“You have to stop keeping the kids up”). Our guide to boundaries in relationships covers that difference. This one is about your families.

None of this is about loving your families less. In plenty of families and cultures, parents are part of daily life, and that closeness is a gift. The goal is a plan you both chose, whether that’s Sunday dinner every week or a visit twice a year.

• Agree first. Decide together, in private, before anyone else hears about it.
• Your family, your voice. Each of you speaks to your own parents, siblings and aunties.
• A yes with every no. Pair each limit with something you’re glad to offer.

Yes, somewhat, and in both directions, though the research is thinner than the confident advice online suggests. A 2002 analysis of family and relationship journals found that fewer than 1% of the studies looked at in-law ties, as a later paper on in-laws reports.¹ A 2014 interview study with gay men and lesbian women opens on a similar note: few studies had looked at their ties with aging parents and parents-in-law.² Most of the studies in this section describe husbands and wives, and several are small or decades old, so read them as clues, not rules.

Friction seems to travel. In a study of couples married almost two decades on average, wives who had more discord with their in-laws went on to rate their marriages as less successful, and the results for husbands differed slightly.³ And when researchers in Singapore and Macao followed 359 married mothers from pregnancy to after the birth, marital distress and conflict with parents-in-law each predicted the other in mid to late pregnancy.⁴

Warmth seems to travel too. In a study of 707 newlywed couples, the more a husband’s family approved of his wife early on, the less conflict both spouses reported 18 months in, and the better both rated the relationship three to four years in.⁵

That pattern came mostly from 36 couples where the husband thought he was close to her family and she didn’t think so: 26 of them (72%) had split by year 16, against 46% of all the couples.⁶ The other mismatches the study tested didn’t reach significance, so this is one finding, not a law.⁶ An earlier analysis of the same couples, which took husbands and wives separately, had tied closeness itself to the odds of divorce, in directions that varied by gender and race.⁷ A study of 132 middle-aged couples echoes the agreement finding: the further apart spouses were on what grown children owe their aging parents, the lower the husbands’ marital satisfaction (with no such link for wives).⁸

Our reading: you don’t have to feel the same way about each other’s families. You do need to know how the other one sees things, which means asking.

Healthy boundaries with in-laws are a handful of clear agreements that keep your relationship yours and keep your families in your life. They’re specific, you both chose them, and they look different in every home.

How different? In 2021, 18% of people in the US lived in a multigenerational household, and the share was about a quarter among Asian, Black and Hispanic Americans, compared with 13% of White Americans.⁹ Across national surveys in 75 countries, the share of married women living with their mother-in-law ran from 1% in Rwanda to 49% in Tajikistan.¹⁰ “Normal” depends a lot on where and how you grew up. The earlier Michigan analysis ends on a similar note: one-size-fits-all approaches to in-laws are likely to fall short.⁷

So what does “healthy” look like where family comes first? In Iran, where blood ties have traditionally outranked marriage ties, researchers interviewed 31 people (daughters-in-law, sons-in-law, parents-in-law and family clinicians). They described successful in-law relationships as resting on three things: a sense of “we” with your partner, flexible boundaries with the family you grew up in, and joining your in-laws.¹¹

And for some couples, the first boundary is simply being treated as a couple. In the interviews with gay men and lesbian women (50 people aged 40 to 72, in long-term partnerships), a supportive tie with parents and parents-in-law meant being included in family events, being called “son” or “daughter,” being relied on for support, and being affirmed for who they are. Strained ties were marked by, among other things, rejection in everyday life.²

Money from family deserves a talk of its own: see how to talk to your partner about money.

Gently, and as a request about the two of you, not a review of their relatives. You’re talking about people your partner loves, and they may already feel pulled between you. So keep the first talk small: one thing you’d like to change, and one thing you’ll try.

We found no study that tested scripts for this exact talk, so what follows is plain, kind practice, not lab results. For more on keeping a hard talk from turning into a fight, see our fair fighting rules.

1. 1

   Pick your moment

   Not in the car on the way home from their parents’ place, and not mid-visit in a whispered hallway summit. Wait until the sting has faded, then choose a calm hour when neither of you is tired or hungry.

2. 2

   Know your one ask

   Before you start, finish this sentence: “The one thing I’d like us to change is…” One specific thing (drop-in visits, the holiday split, comments about the baby) beats a ten-year list.

3. 3

   Open with what’s good

   Start with something true and kind about their family. Then describe one recent moment and how it landed for you, and skip the character analysis.

4. 4

   Ask how they see it

   Then get curious, and listen all the way to the end. They’ve had a lifetime with these people and may read the same moment differently. You’re not after a verdict on who’s right, just a clear picture of each other’s view.

5. 5

   Land one small agreement

   Turn it into something the two of you will do: when, how often, who says what. Keep it small enough to try this month, and agree on words you’ll both stand behind.

6. 6

   Set a check-in

   Put a date on it: “Let’s see how the next visit goes and talk on Sunday.” Family plans get adjusted. That isn’t failure, it’s the process.

If the issue is your own family, run the same plan in reverse. Ask your partner what’s been hard, believe them, and resist the urge to translate (“that’s just how she is”). You can love your parents and still say, “That didn’t land well. I’ll talk to them.”

A few things of ours can give you a head start. Our questions to ask before marriage have a section on family and kids: how involved you expect your parents to be, whose family gets which holidays, how you honestly feel about each other’s relatives. The free same page check asks how you’d each spend the big holidays. And The Couples Contract has a Family and Friends section where you each say how close you are with your family and how much time you’d like your partner to spend with them, then fill in a grid of whose family gets which holiday. It isn’t legally binding, just a written record of what you agreed, handy when someone says “but you always come to us.”

The usual rule of thumb: each of you speaks to your own family, in person or on a call, with “we” in the sentence. We couldn’t find a study that tests who should deliver the news, so take that as common sense, not science. The logic: your parents have had decades of practice forgiving you, and news from their own child is harder to blame on the newcomer.

Lead with warmth, and pair the limit with an offer. In a survey of 267 mothers-in-law about their daughters-in-law, feeling left out of the triangle with their son and his wife went with feeling less close to her, and more time together each month went with feeling closer.¹² A boundary that arrives with an invitation (“not this weekend, but come for dinner Thursday”) says “we want you in our lives” and “here’s how” in one breath.

None of this means you only reach your in-laws through your partner. In a study of 60 engaged couples and both of their mothers, one-on-one contact with a future in-law before the wedding, and warmer feelings about the relationship going in, predicted a more positive relationship about six months after it.¹ Most of the brides, grooms and mothers-in-law in that study didn’t report the bad feelings the stereotypes promise, though families who volunteer for such a study may be the friendlier ones.¹ So text your father-in-law the score. Ask your mother-in-law for the recipe. Our hunch: a limit lands softer in a relationship that already has some good in it.

Mostly, anything that turns “us and our families” into “me against yours.” Here are the classics, and what to try instead.

Start by assuming habit, not malice, and expect to say it more than once. In a 2020 national poll of US parents (2,016 took part), parents who had asked a grandparent to change their behavior to match the parents’ rules reported mixed results: 47% said the grandparent changed, 36% said the grandparent agreed and then didn’t, and 17% said the grandparent refused.¹³ (That’s grandparents on either side of the family, not only in-laws.) So asking worked nearly half the time, and needing a second round is ordinary.

• Repeat it, the same way. Same words, same warmth, no new arguments: “Like we said, text first.”
• Act on your side of it. If visits keep running late, you’re the ones who say goodnight and head home.
• Keep the same messenger. The one whose family it is follows up. If they’re your parents, this is your job, even when it’s uncomfortable.
• Go back to each other. If it keeps happening, the next talk is between the two of you: is the plan clear, do you both still want it, and are you both holding it?

And if the hard part is that your partner won’t say anything? That one stings, and it doesn’t have to mean they don’t care. For someone who has never disagreed with their parents out loud, one sentence can feel like a cliff. Go back to the talk plan with a smaller ask: not “stand up to your dad,” but “next time, could you change the subject, or squeeze my hand so I know you heard it?” If you stay stuck, a couples therapist can help you both find a way through.

When someone isn’t safe. Everything above is for ordinary family friction, between two people who feel safe with each other.