When Should My Child Start Talking? Speech and Language Milestones 0–5

What to Expect at Each Age

Every child develops at their own pace, but there are general milestones that most children reach within certain age ranges. These milestones give you a useful guide for understanding whether your child's speech and language development is on track.

It's important to remember that milestones are averages, not deadlines. Some children are early talkers, others take a little longer. Bilingual children may develop differently in each language. Premature babies may reach milestones later based on their corrected age. What matters most is that your child is making steady progress over time.

Birth to 12 Months

Before your baby says their first word, they're already building the foundations of communication.

In the first few months, your baby should react to loud sounds, make eye contact, and begin to smile. By around 4 to 6 months, most babies are babbling, making sounds like "ba-ba" or "da-da." They'll start to turn towards voices and respond to changes in your tone.

By 9 to 12 months, your baby should be babbling with a variety of sounds, responding to their name, understanding simple words like "no" and "bye-bye," and using gestures like pointing and waving.

When to be concerned: If your baby is not babbling by around 10 months, does not respond to their name, shows no interest in communicating through gestures, or does not react to sounds or voices, speak to your GP or public health nurse.

12 to 18 Months

Most children say their first words around their first birthday. By 18 months, many toddlers have around 10 to 20 words, though some have more and some have fewer.

At this stage, your child should understand simple instructions like "give me the cup," point to things they want or find interesting, use a mix of words and gestures to communicate, and recognise the names of familiar people and objects.

When to be concerned: If your child has no words at all by 18 months, does not seem to understand what you say to them, has stopped babbling or using sounds they previously made, or shows no interest in communicating, it's worth seeking advice.

18 Months to 2 Years

This is often when language takes off. Between 18 months and 2 years, most children go through a "word explosion," rapidly adding new words to their vocabulary.

By age 2, most children have around 50 or more words and are starting to put two words together like "more milk," "daddy go," or "big dog." They should understand simple questions and follow short instructions.

According to the HSE, you should be able to understand at least half of what your child says by age 2, even if their pronunciation isn't perfect.

When to be concerned: If your child has fewer than 50 words by age 2, is not combining two words together, does not seem to understand simple instructions, or is frustrated when trying to communicate, consider speaking to a speech and language therapist.

2 to 3 Years

Between 2 and 3 years, your child's language becomes much more complex. They'll start using short sentences of 3 to 4 words, ask simple questions, and follow two-part instructions like "get your shoes and bring them here."

Their speech will become clearer, though some sound errors are still completely normal at this age. Strangers should be able to understand most of what your child says by age 3.

Your child should be learning new words regularly, starting to use pronouns like "I," "me," and "you," enjoying stories and songs, and having simple back-and-forth conversations.

When to be concerned: If your child is difficult to understand by age 3, has trouble following simple instructions, is not using short sentences, or seems to be falling behind peers in communication, seek an assessment.

3 to 5 Years

By age 3 to 4, your child should be speaking in sentences of 4 to 6 words, telling you about things that happened, asking lots of "why" and "how" questions, and using most speech sounds correctly though sounds like "s," "r," "l," and "th" can still be tricky.

By age 5, your child's speech should be clear and easy to understand almost all of the time. They should be able to tell stories, explain their ideas, have conversations, and follow multi-step instructions.

According to the HSE, by age 5, children should be easy to understand almost all of the time when talking face-to-face, though they may still struggle with some long or complicated words.

When to be concerned: If your child's speech is consistently difficult to understand after age 4, they struggle to follow instructions at school, they avoid talking or seem anxious about speaking, or they fall behind peers in communication and literacy, a speech and language assessment is recommended.

Every Child Is Different, But Early Support Matters

If you've read through these milestones and feel unsure about your child, trust your instinct. Parents are often the first to notice when something isn't quite right.

In Ireland, almost 45,000 children have been on waiting lists for speech and language therapy through the HSE. The demand for services far exceeds what the public system can provide, and many families wait months or even years for an initial assessment.

You do not need a GP referral to see a speech and language therapist privately. Early intervention is one of the most important factors in successful outcomes. The sooner difficulties are identified and supported, the better the long-term results.

What You Can Do Right Now

If you're concerned about your child's speech or language development, here are some steps you can take today.

Talk to your child throughout the day, narrate what you're doing, name objects, and respond to their attempts to communicate. Read together daily, even short picture books help build vocabulary and understanding. Reduce screen time, excessive screen exposure in early years has been linked to slower language development. Get an assessment, you can book directly with a qualified, CORU registered speech and language therapist without a referral or waiting list.

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