Is My Child Lying?

Understanding why children lie, and what they may really be communicating.

Parents often worry that lying is a sign of dishonesty or poor character.

In reality, childhood lies are often far more connected to brain development, emotional regulation, imagination, and relationships than we realise.

You: “Did you eat the last biscuit?”

Your child: “No.”

The crumbs around your child’s mouth suggest otherwise.

Or perhaps you’ve heard:

“It wasn’t me.”

“The teddy did it.”

“I brushed my teeth.”

“I didn’t push him.”

Most parents have experienced moments like these.

It’s easy to wonder:

“Why would my child lie when it’s so obvious?”

Or perhaps even:

“Should I be worried?”

Lying can feel frustrating, confusing, and sometimes even hurtful.

Many parents worry that lying is a sign their child is becoming dishonest or developing poor values.

But what if there was another way to look at it?

What if, instead of asking,

“Why is my child lying?”

we asked,

“What might my child be trying to communicate?”

Because while lying is a behaviour that should be addressed, the reason behind it is often much more complex than we think.

Honesty Is a Skill That Develops

We don’t expect children to master reading, tying their shoes, or riding a bike overnight.

Yet we sometimes expect them to tell the truth perfectly from the moment they can speak.

Like every other developmental skill, honesty develops over time.

Children are not born with a fully developed understanding of truth, morality, empathy, perspective-taking, or consequences.

These abilities grow gradually as their brain develops.

Researchers such as Jean Piaget and Lawrence Kohlberg found that children’s understanding of right and wrong evolves through predictable stages. Young children often make decisions based on immediate consequences or whether they might get into trouble, rather than on an internalised understanding of honesty, fairness, or personal values.

At the same time, the prefrontal cortex (the part of the brain responsible for impulse control, planning, emotional regulation, flexible thinking, perspective-taking, and considering consequences) is still developing well into early adulthood.

Researchers such as Daniel Siegel, Bruce Perry, and Adele Diamond have shown that these developing brain systems play a significant role in children’s ability to regulate emotions, solve problems, and make thoughtful decisions.

In other words…

Honesty isn’t simply something children know.

It’s something they learn.

Like learning to read, children don’t develop honesty all at once. It grows gradually through experience, guidance, relationships, and repeated opportunities to practise telling the truth, even when it’s difficult.

How Honesty Develops Across Childhood:

Every child develops at their own pace, but understanding what is generally expected at different ages can help parents respond with realistic expectations.

• Ages 2–4: Imagination and Reality Often Overlap

During the preschool years, children are still learning to distinguish between fantasy and reality.

They may tell imaginative stories, blame a teddy for making a mess, or confidently insist they really did see a dinosaur at the park.

At this age, children are not usually trying to deceive others in the way adults think about lying.

Instead, their growing imagination, developing language, and limited understanding of cause and effect all influence what they say.

This is also the age when children begin learning about rules, consequences, and honesty.

Gentle guidance, modelling honesty, and responding with curiosity rather than accusation help lay the foundations for later moral development.

• Ages 4–7: “I Don’t Want to Get Into Trouble”

As children grow, they begin to understand the difference between truth and lies more clearly.

However, honesty is still developing.

Children at this age may lie because they:

• want to avoid consequences

• fear disappointing an adult

• feel embarrassed

• wish something were true

• are still developing impulse control and emotional regulation

They often know that lying is “wrong,” but their desire to protect themselves can be stronger than their ability to tell the truth.

Their nervous system is still learning how to cope with uncomfortable emotions such as guilt, disappointment, embarrassment, and fear.

This doesn’t mean they are dishonest children.

It means they are still developing the emotional and cognitive skills needed to choose honesty, especially in difficult moments.

• Ages 8–12: Growing Moral Understanding

During the primary school years, children become better able to understand fairness, honesty, empathy, and how their actions affect other people.

Their executive functioning skills continue developing, allowing them to think ahead, consider consequences, understand another person’s perspective, and reflect on their choices more effectively.

Most children become increasingly honest as these skills mature.

However, they may still lie at times to avoid embarrassment, protect a friend, fit in socially, avoid disappointing adults, or escape consequences.

These moments continue to provide valuable opportunities to teach responsibility, empathy, problem-solving, and integrity.

Rather than asking, “How do I stop my child from lying?” it can be more helpful to ask, “What is my child learning from how I respond when they tell the truth, or when they don’t?”

Remember…

These ages are only a general guide.

Every child develops differently, and factors such as temperament, neurodivergence, anxiety, trauma, language development, and life experiences can all influence how children understand honesty and why they may lie.

Rather than asking,

“Should my child know better by now?”

it can be more helpful to ask,

“What skills is my child still developing, and how can I support them?”

That small shift moves us away from seeing lying as simply “bad behaviour” and towards understanding it as an opportunity to teach honesty, responsibility, emotional regulation, and trust.

Because while children are responsible for their behaviour, they are also still learning the skills that support it.

Is My Child Really Lying?

Not every untrue statement has the same meaning.

Sometimes children deliberately tell a lie.

Sometimes they genuinely remember events differently.

Sometimes they are protecting themselves.

Sometimes they wish something were true.

Sometimes they are using their imagination.

Understanding the “why” behind the behaviour helps us respond in ways that teach honesty, rather than simply punish dishonesty.

Instead of asking,

“How do I stop my child from lying?”

it can be more helpful to ask,

“What is my child trying to communicate?”

Often, the behaviour is telling us something long before the child has the words to.

Why Do Children Lie?

There isn’t one reason.

Children may lie for many different reasons depending on their age, development, temperament, personality, and experiences.

Let’s look at some of the most common ones.

1. Fantasy and Reality Are Still Blending Together

Young children, particularly preschoolers, have wonderfully imaginative minds.

Researchers such as Jean Piaget, Paul Harris, and Alison Gopnik have shown that pretend play is an important part of healthy cognitive, emotional, and social development.

Sometimes imagination spills into real life.

A child might tell you:

“I saw a dinosaur today.”

or

“My teddy cleaned my room.”

They’re not necessarily trying to deceive you.

Their imagination is still helping them make sense of their world.

Rather than correcting them immediately, we can often join their curiosity while gently helping them separate pretend from reality over time.

You might smile and say: “Your teddy sounds very helpful! I wish teddies could tidy bedrooms. Now, shall we see how we can finish cleaning it together?”

2. They Are Afraid of Getting Into Trouble

This is probably one of the most common reasons children lie.

Imagine accidentally breaking a favourite vase.

Your first instinct might not be,

“I can’t wait to tell Mum.”

Instead, you might feel worried.

Children experience this too.

Sometimes lying is an attempt to protect themselves from punishment, disappointment, embarrassment, or losing connection with someone they love.

The lie is often less about avoiding responsibility and more about avoiding the uncomfortable feelings that come with making a mistake.

This doesn’t mean we ignore the lie.

But it does help us understand what may be happening underneath it.

Let’s look into this example of your child accidentally breaking a vase:

Your child: “I didn’t do it!”

Rather than immediately responding with,

“Don’t lie to me!”

you might calmly say,

“It looks like the vase has broken. Accidents happen. Can you help me understand what happened?”

If your child then admits what happened, you might respond,

“Thank you for telling me the truth. I’m glad you were honest. Now let’s work together to clean it up and think about how we can be more careful next time.”

This approach doesn’t ignore the behaviour or remove responsibility.

Instead, it teaches children that mistakes can be acknowledged, repaired, and learned from without damaging their relationship with the people who care about them.

3. They Wish Something Were True

“I scored three goals.”

“I won the race.”

“My drawing was the best.”

Sometimes children tell the story they wish had happened.

This is known as wishful thinking.

It isn’t necessarily manipulation.

Often, it reflects hopes, dreams, confidence, or sometimes even insecurity.

Young children are still developing their sense of identity, competence, and self-esteem.

Their stories can sometimes reveal what they long for, rather than what actually happened.

For example, imagine your child tells you,

“I was the fastest runner in my class today!”

Later, their teacher mentions they actually found the race quite difficult.

Rather than saying,

“That’s not true. Why did you lie?”

you might respond with curiosity:

“It sounds like being the fastest was really important to you. Tell me all about the race.”

If your child continues insisting,

“But I WAS the fastest!”

instead of arguing, you might say:

“I can see that you really wanted to be the fastest. Tell me what happened from the

beginning.”

As children retell the story, they often begin to organise their thoughts and may naturally become more accurate about what happened.

This approach focuses less on catching the lie and more on understanding the feelings behind it, while gently encouraging honesty without creating shame.

4. Their Brain Is Still Developing

Telling the truth isn’t always as simple as remembering what happened.

Executive functioning skills, including working memory, impulse control, flexible thinking, planning, and self-monitoring, continue developing throughout childhood and adolescence.

Researchers such as Adele Diamond have shown that these skills play a significant role in children’s behaviour.

Sometimes children answer before they’ve really thought.

Sometimes they genuinely forget.

Sometimes the truthful answer feels harder than the quick one.

And sometimes, once the lie has been told, they don’t know how to backtrack.

For example, imagine asking your child,

“Did you pack your library book?”

Without really thinking, they quickly reply,

“Yes!”

A few minutes later, they discover the book is still sitting on their bedroom floor.

Rather than assuming they deliberately lied, it may be that they answered impulsively before stopping to think, or genuinely believed they had already packed it.

Instead of saying,

“Why did you lie to me?”

you might respond,

“It looks like the library book is still here. I wonder what happened?”

This gives your child the opportunity to slow down, think, and problem-solve without immediately becoming defensive.

As children’s executive functioning develops, they become better at pausing, reflecting, and checking their answers before responding.

5. They’re Learning How Relationships Work

As children grow, they begin to realise that words can influence what other people think.

This is an important developmental milestone.

Children start experimenting with social situations.

They learn that different people have different thoughts, feelings, and perspectives.

Most children test these ideas at some point.

It is part of learning how relationships work.

As their moral understanding develops, these experiences become opportunities to teach honesty, empathy, and responsibility.

For example, imagine your child has taken the last biscuit before dinner.

When you ask what happened, they quickly say,

“My brother ate it!”

Rather than immediately responding,

“I know you’re lying!”

you might calmly say,

“It sounds like you’re worried about telling me what happened. Let’s slow down and work it out together.”

Or perhaps an older child says,

“My teacher didn’t give us any homework today.”

Later, you discover there was homework after all. Instead of jumping straight to,

“Why did you lie?”

you might say,

“I wonder if it felt easier to tell me that than to tell me you hadn’t finished it. Can we talk about what made that feel difficult?”

These conversations help children learn that honesty isn’t just about avoiding consequences, it’s about building trust within relationships.

6. They Don’t Yet Have the Words

Sometimes the lie is hiding a much bigger feeling.

Instead of saying:

“I’m embarrassed.”

“I’m scared.”

“I forgot.”

“I didn’t know what to do.”

“I didn’t want you to be disappointed.”

A child simply says,

“No.”

“I don’t know.”

“It wasn’t me.”

Often, the lie is easier than expressing a complicated emotion.

Helping children develop an emotional vocabulary can gradually reduce their need to hide behind a lie.

For example, imagine your child accidentally spills milk all over the kitchen floor.

When you ask,

“Did you spill the milk?”

your child quickly replies,

“No.”

even though they’re standing in the puddle holding the empty cup.

Rather than immediately saying,

“Why did you lie?”

you might calmly say,

“I can see the milk has spilled. I wonder what happened?”

Your child might quietly respond,

“It slipped…”

or

“I didn’t mean to…”

or

“I thought you’d be angry.”

You could then respond,

“Thank you for telling me. I know that wasn’t easy.

Sometimes it’s really hard to be honest when we’re worried about getting into trouble.

Let’s clean it up together, and next time we’ll work on telling the truth straight away.”

The lie wasn’t really about the milk.

It was about not knowing how to say,

“I made a mistake.”

When we respond with curiosity instead of accusation, we give children the opportunity to recognise and express what they were feeling, while still taking responsibility for what happened.

Over time, children begin to replace,

“No.”

with,

“I was scared.”

“I made a mistake.”

“It was an accident.”

And that’s exactly the skill we’re trying to teach.

7. They Remember Things Differently

Have you ever confidently remembered something, only to later realise you remembered it differently?

Most of us have.

Children experience this too.

Memory is not like replaying a video recording.

Instead, our memories are reconstructed each time we recall them.

Memory research, including the work of Elizabeth Loftus, has shown that our memories are not perfect recordings of events. Emotions, attention, language, and later experiences can all influence what we remember.

Children’s memories are still developing, making them even more likely to remember events differently from how they actually happened.

Sometimes children genuinely believe what they are saying.

For example, imagine your child comes home from school and tells you,

“We didn’t have library today.”

The next day, their teacher mentions that the class did go to the library.

Rather than immediately saying,

“That’s not true. Why did you lie?”

you might respond with curiosity:

“That’s interesting. I wonder if it was such a busy day that it was hard to remember everything. Let’s have a look in your school bag together.”

As your child opens their bag, they discover a library book and excitedly say,

“Oh yeah! We did go to the library! I forgot!”

In this situation, your child wasn’t trying to deceive you.

Their memory simply wasn’t accurate in that moment.

Staying curious gives children the opportunity to rethink and remember, rather than feeling they need to defend themselves.

Just like adults, children sometimes remember things differently.

The difference is that they are still developing the cognitive skills to organise, store, and retrieve memories accurately.

Responding with curiosity rather than accusation helps children feel safe enough to reconsider what happened, and that’s a much more effective way to encourage honesty.

Does This Mean Lying Is Okay?

No.

Honesty is an important value, and children need guidance to develop it.

Understanding why children lie does not mean ignoring the behaviour.

It means responding in ways that teach honesty rather than simply creating fear.

Children are more likely to tell the truth when they believe:

“I can make mistakes and still be loved.”

rather than,

“If I tell the truth, I’ll get into trouble.”

The goal is accountability, not shame.

Children still need boundaries.

They still need consequences when appropriate.

But consequences teach best when they are paired with connection, guidance, and opportunities to repair mistakes.

Guilt or Shame?

When children realise they have done something wrong, they may experience guilt or shame.

Although they can look similar, they are very different experiences.

Guilt says:

“I did something wrong.”

Shame says:

“There is something wrong with me.”

Guilt can actually be helpful.

It encourages children to recognise mistakes, develop empathy, make amends, and learn from their experiences.

Shame, however, often leads children to hide, deny, blame others, become defensive, or lie to protect themselves.

As researcher Dr. Brené Brown explains, shame thrives on secrecy, silence, and disconnection.

Our goal is to help children take responsibility for their behaviour without believing that their mistakes define who they are.

Children need to know:

“I made a mistake.”

not

“I am a mistake.”

When children feel emotionally safe, they are much more likely to acknowledge mistakes, accept responsibility, and learn from them.

This is how honesty grows, not through fear, but through guidance, trust, and connection.

What Can Parents Do?

How we respond when children lie matters just as much as the lie itself.

If children learn that telling the truth always leads to anger, shame, or harsh punishment, they may become better at hiding mistakes rather than learning from them.

Our goal is not simply to catch children in a lie.

Our goal is to help them become children who value honesty, take responsibility for their actions, and feel safe enough to tell the truth, even when it’s difficult.

Instead of asking a question you already know the answer to,

“Did you draw on the wall?”

Try beginning with what you know.

“I can see some drawing on the wall.”

Then stay curious.

“Can you help me understand what happened?”

This small shift reduces the pressure to defend themselves and opens the door for honesty.

You can also reassure your child that telling the truth is safe.

For example, you might say:

“You’re not in trouble for telling me the truth. Let’s figure this out together.”

or

“Everyone makes mistakes. What’s important is that we’re honest about them.”

This doesn’t mean there won’t be consequences if a rule has been broken.

Rather, it helps children understand that honesty is valued and that mistakes can be repaired together.

Natural or logical consequences may still follow, but they are most effective when delivered calmly and respectfully, rather than through fear or shame.

What If My Child Has a Tantrum or Meltdown?

You might find that your child immediately becomes upset, defensive, or even has a tantrum or meltdown when they realise they have been caught.

If this happens, it doesn’t mean the conversation has failed.

For some children, being confronted with a mistake can trigger intense feelings of shame, fear, or overwhelm. When emotions become too big, it becomes difficult for them to think clearly, reflect on what happened, or continue the conversation.

Remember what we explored in the Window of Tolerance.

When children move outside their Window of Tolerance, the thinking parts of the brain become less accessible.

In these moments, the priority is not to force a confession or continue questioning.

Instead, help your child return to a calm and regulated state first.

Once they are feeling safe and able to think again, you can gently return to the conversation about honesty, taking responsibility, and repairing what happened.

Children learn best when they feel safe enough to reflect, not when they are overwhelmed.

Other Ways to Encourage Honesty

You can also support honesty by:

- Staying calm, even when you’re disappointed.

- Acknowledging your child’s feelings before solving the problem.

- Praising honesty, especially when telling the truth is difficult.

- Focusing on repairing mistakes rather than assigning blame.

- Modelling honesty in your own everyday life.

- Separating the behaviour from the child.

Instead of saying,

“You’re a liar.”

Try,

“Thank you for telling me the truth. Now let’s work out how to fix this together.”

Children learn honesty through repeated experiences of safety, accountability, repair, and trust.

When Should Parents Be Concerned?

Occasional lying is a normal part of childhood development.

However, it may be helpful to seek professional support if lying becomes:

• persistent and frequent

• part of a broader pattern of behavioural concerns

• linked with aggression or stealing

• associated with significant anxiety or trauma

• affecting friendships, family relationships, or school life

Sometimes lying is a symptom rather than the main concern.

Looking at the whole child, their emotions, relationships, development, and life experiences, is far more helpful than focusing on the behaviour alone.

💚 Remember This

The next time your child lies, pause before reacting and ask yourself:

• Are they scared?

• Are they embarrassed?

• Are they protecting themselves?

• Are they using their imagination?

• Are they missing a skill they’re still developing?

• What might they be trying to communicate?

Then ask yourself one more question:

“How can I teach honesty while preserving our connection?”

Children learn best when they feel safe enough to be honest, even after making a mistake.

A Gentle Reminder

Children are not born knowing how to tell the truth in every situation.

Honesty develops alongside empathy, emotional regulation, language, executive functioning, perspective-taking, and moral understanding.

Like every other developmental skill, it takes time.

As parents, our role is not simply to catch children when they lie.

Our role is to teach them why honesty matters, help them take responsibility for their mistakes, and show them that mistakes can be repaired.

The goal isn’t to raise a child who never lies.

The goal is to raise a child who values honesty, takes responsibility for mistakes, and feels safe enough to tell the truth, even when it’s difficult.

Children don’t become honest through fear of making mistakes.

They become honest when they learn that the truth is safe, mistakes can be repaired, and the people who love them will help them make things right.

Books for Children

📚 Howard B. Wigglebottom Learns It’s OK to Tell the Truth — Howard Binkow

A gentle story that encourages honesty and taking responsibility for mistakes.

📚 Lying Up a Storm — Julia Cook

An engaging and practical story that helps children understand why honesty matters and how to make things right.

📚 Ruthie and the (Not So) Teeny Tiny Lie — Laura Rankin

A beautiful story about friendship, guilt, honesty, and repairing mistakes.

📚 The Empty Pot — Demi

A timeless tale celebrating honesty, courage, integrity, and doing the right thing, even when it’s difficult.

Books for Adults

📖 The Whole-Brain Child — Daniel J. Siegel & Tina Payne Bryson

An excellent introduction to children’s brain development and why behaviour often reflects developmental skills rather than defiance.

📖 Good Inside — Dr. Becky Kennedy

A compassionate and practical guide to understanding children’s behaviour while building connection and resilience.

📖 Raising Human Beings — Ross Greene

Explores collaborative approaches that help children develop responsibility, problem-solving, and emotional skills.

📖 Beyond Behaviours — Mona Delahooke

Helps parents understand behaviour through the lens of brain development, relationships, and the nervous system.

📖 The Book You Wish Your Parents Had Read — Philippa Perry

A thoughtful book about relationships, communication, and how our responses shape children’s emotional development.

Podcasts

🎧 Good Inside with Dr. Becky

Practical conversations about parenting, behaviour, emotional development, and connection.

🎧 Unruffled — Janet Lansbury

Thoughtful discussions about respectful parenting and understanding children’s behaviour.

🎧 The Parenting & Teaching Podcast — Dr. Vanessa Lapointe

Research-informed conversations about child development, attachment, and emotional health.

🎧 The Child Psych Podcast

Evidence-based discussions about children’s mental health and development.

How Can I Help?

If your child is struggling with emotional regulation, anxiety, behavioural challenges, or difficulties expressing their feelings, play therapy can provide a safe and supportive space to explore emotions, develop coping skills, strengthen relationships, and build confidence.

Every child deserves the opportunity to feel understood.

🌿 Supporting children and families through connection, play, and emotional safety.

References

Brown, B. (2012). Daring Greatly.

Diamond, A. (2013). Executive Functions.

Gopnik, A. (2009). The Philosophical Baby.

Harris, P. L. (2000). The Work of the Imagination.

Kohlberg, L. (1981). The Philosophy of Moral Development.

Loftus, E. (2005). Research on Memory and False Memories.

Piaget, J. (1932). The Moral Judgment of the Child.

Perry, B. D. (2006). Applying Principles of Neurodevelopment to Clinical Work with Traumatised Children.

Siegel, D. J. (1999). The Developing Mind.