My partner lies about small things. Why, and what do I do?

EQTiger Editorial · Sources checked 2026-10-26 · Expert review pending

The little lies people find themselves searching about

Here are the kinds of small lies that send people to a search bar, and what each one usually spares the person telling it.

Almost every line in that table is a way of getting through the next few minutes without friction. That makes these lies easier to understand. It does not make them harmless, because what you lose is the ability to take your partner's ordinary sentences at face value.

How ordinary small lies are, and how unevenly people tell them

Some everyday lying is close to universal. In two diary studies from the 1990s, 77 college students recorded about two lies a day and 70 adults from the community about one. Most of those lies were unplanned and not seen as serious by the people telling them, but conversations that contained a lie were rated as less pleasant and less intimate than ones that didn't (DePaulo and colleagues, 1996). A follow-up with the same diaries found that people told fewer lies per conversation to the people they felt closest to, felt worse when they did, and were more often caught by those close partners (DePaulo and Kashy, 1998).

Between romantic partners the data are thinner. A small diary study had 67 students in relationships log every deceptive act toward their partner for a week. They logged 327 in total, about 0.7 a day. Fewer than half were outright lies; the rest were exaggerations, half-truths, changes of subject and secrets. Their stated reasons included keeping the relationship smooth, protecting their own or their partner's pride, and steering the relationship (Guthrie and Kunkel, 2013). That was mostly young, unmarried women, so treat the numbers as a glimpse, not a norm.

Lying is also spread very unevenly. When 1,000 American adults were asked about the last 24 hours, 60% said they had told no lies at all, and almost half of all the lies reported came from just 5% of the people surveyed (Serota, Levine, and Boster, 2010). So a white lie about a haircut is ordinary. A partner who tells you something checkably untrue several times a week is toward the heavy end, and your unease about it is reasonable. All of these studies relied on people reporting their own lies, which probably means the true numbers are higher.

What the lie may be protecting

In a study of 128 couples, how much people deceived their partner was linked to three things: how open the two of them were with each other in general, a wish to avoid being punished, and their beliefs about closeness and dependence (Cole, 2001). That matches the table below. None of these reasons are excuses, but each one points to a different conversation.

A loop two people can build without meaning to

Delphine and Arturo have lived together for three years. Most evenings Arturo texts "on my way" at 6:10 while still packing up, and walks in at 6:45. For the first year, Delphine met him at the door with "You're late again," and a ten-minute talk about how she can't plan dinner. The talk made the real time expensive to admit. "On my way" bought him thirty-five quiet minutes. Now Delphine doesn't believe the text, and last week she caught herself wondering what else he rounds off.

The lying was Arturo's choice, and it is his to stop. The point of the scene is that the fix usually needs both people: he stops shading the truth, and she makes the truth something he can say without paying for it.

Raising it: one lie, on a calm day

Lists of past lies start trials. One example, raised well, starts a conversation.

1. Pick one recent, specific lie you are sure of. Not "you always," and not the one you only suspect.
2. Wait for a calm moment, within a day or two. Not the minute you catch it, and not by text.
3. Name the fact and the lie as two separate things. The lie is usually the bigger problem for you, so say so.
4. Say what it costs you. Not what it says about them.
5. Ask what made the truth hard to say, and listen to the answer.
6. Offer something. Usually that you will take the truth calmly.

The version that tends to backfire:

You lie about everything. I can't believe a word you say.

I checked your location. You weren't even in the car.

The version that tends to work:

Yesterday you said you were on your way at ten past six, and you got home at quarter to seven. I'm honestly not upset about the thirty-five minutes. I'm upset that "on my way" doesn't mean anything to me anymore.

When it's little stuff, I start wondering about the bigger stuff, and I hate wondering.

What makes it easier to say "on my way" than "I'm stuck for half an hour"? If you tell me the real time, I'll say "okay" and that's it.

If your partner bristles the moment you start, why a partner gets defensive and how to keep the talk going is the companion to this section. If you have raised it before and nothing changed, how to bring up a problem that keeps coming back has lines for the second and third round.

Make the truth cheaper than the lie

You cannot make someone honest. You can stop charging extra for honesty in your home.

• Split the thing from the lie, out loud. "I don't care about the cake. I care that you said you didn't eat it."
• Thank the unwelcome truth. "Thanks for telling me. That can't have been fun to say." It feels backward when you are annoyed, but it is the reaction that gets you more truth next time.
• Keep the annoyance to one sentence. Then move on to dinner. A truth that costs a lecture will get rounded off next time.
• Stop asking questions you already know the answer to. Traps teach your partner that every question is a test, which makes them more careful, not more honest.
• Agree that a quick correction is free. If your partner says "Actually, I haven't left yet, twenty minutes" within the hour, that counts as the truth arriving late, not as a lie.

Checking up on them, through location apps or their phone, tends to feed the worry it is meant to calm. How checking and suspicion feed each other between partners explains that loop.

If you are the one telling the small lies

Notice which topics they cluster around, because that tells you what you are afraid of: being late, money, food, seeming incompetent. Then practice the one move that changes the pattern fastest, which is correcting yourself on the spot: "Wait, that's not true. I haven't called them yet. I'll do it at nine." It is uncomfortable for a few weeks and then it becomes a habit.

Each small lie spends some of the trust you will want on a day when something big needs believing. If you have already spent a lot of it, rebuilding trust after a broken promise lays out how to earn your word back with small promises your partner can watch you keep.

When the small lies are covering something bigger

Some patterns are not about friction at all. Take them more seriously if the lies keep landing on the same few subjects (drinking, money, where your partner was, who they talk to), if they grow when you ask questions, or if catching one makes your partner angry at you rather than embarrassed. Hidden spending has its own page on rebuilding trust after lying about money, and hidden contact with someone else is covered in rebuilding trust after cheating.

One pattern is different again. If raising a lie regularly ends with you being told that it never happened, that you misremember, or that you are imagining things, until you start doubting your own memory, that is a way of controlling what you believe, and careful wording on your side will not fix it. If you are also afraid of your partner's reaction, go to hard situations and safety before you try another conversation. The other pages on honesty, jealousy and repair are listed in the trust and security guide.

Start with the free EQTiger assessment (adults 18+), or go back to the Relationship Center.