There is no specific age at which you must stop using baby sign language with your child. Instead of a hard deadline, experts recommend following your child’s lead as their verbal communication skills develop. Most babies naturally transition away from signing somewhere around 18 months as their spoken language begins to accelerate, but this timeline varies significantly from child to child. Some will drop signs abruptly as speech takes over, while others will continue signing and speaking side by side for months longer—and both patterns are completely normal.
If your 16-month-old is still signing consistently but just starting to say words, don’t stop signing yet. If your two-year-old has abandoned signs entirely in favor of speech, that’s fine too. The key is understanding how signing naturally fits into your child’s overall language development, why some children phase it out more quickly than others, and what you should be watching for to know when your particular child is ready to move on. This article walks through the developmental timeline, addresses common parent concerns, and explains how to recognize when the transition is happening naturally.
Table of Contents
- How Baby Sign Language Naturally Falls Away During Language Development
- The Overlapping Period—Why Some Children Keep Signing Longer Than Others
- Following Your Child’s Lead—When Individual Development Trumps Timelines
- What Parents Should Actually Do During the Transition
- When Parents Worry: Common Concerns About Stopping or Continuing
- Special Considerations for Deaf and Hard-of-Hearing Children
- The Long-Term Perspective—Sign Language as a Life Skill
- Conclusion
How Baby Sign Language Naturally Falls Away During Language Development
Babies typically start signing around 8 to 12 months of age, though some babies can sign back as early as 4 to 6 months. Once signing begins, the pattern usually follows a predictable arc: babies sign exclusively at first, then around 12 to 18 months, they begin to overlap speech with signing. This overlapping period is where the transition actually happens. Between 12 to 18 months, babies can combine signs with spoken words. By age two, babies typically combine signs just as they combine words—mixing and matching them as their vocabulary and confidence with speech grows. The critical window appears to be around 18 months onward.
For typically developing children, speech development accelerates dramatically after 18 months, and as it does, signing naturally falls away. This doesn’t happen because signing caused a problem or because parents need to stop—it happens because your child’s brain has developed enough that speaking becomes faster and more efficient than signing for everyday communication. Think of it like how children eventually stop using training wheels on bikes: the transition happens when they’re developmentally ready, not because you yanked the wheels off on a predetermined date. However, if your child isn’t following this pattern, that’s worth noting but not necessarily alarming. Some children skip the overlapping stage entirely and drop signing abruptly as their speech develops, moving straight from heavy signing to heavy speech. Others continue both for longer. Individual variation is the norm, and there’s no evidence that either path indicates a problem with language development.
The Overlapping Period—Why Some Children Keep Signing Longer Than Others
The overlap between signing and speaking can last weeks or months depending on the child. Your 18-month-old might sign “more” while saying the word, and that’s exactly what researchers expect to see during this transition phase. Some children do this for months; others move away from it quickly. This variation isn’t a sign of slower language development—it’s just how their particular brain is managing two communication systems as one becomes dominant. One important limitation to understand: the developmental advantages of baby sign language don’t extend indefinitely. The research shows that the benefits provided by baby sign language do not extend beyond children over the age of 2 years old.
This doesn’t mean signing becomes harmful after age 2—it means that if you’re introducing signing primarily to accelerate language development or reduce frustration during the pre-verbal period, those specific benefits have largely plateaued by that point. If your child is still signing at age 3, you’re not losing the earlier advantage you gained, but you’re also not gaining additional developmental acceleration from continuing. What you should do during the overlap: keep encouraging speech while accepting that your child might still sign. If your toddler continues signing while saying the word, this is fine. Just keep encouraging speech as well. The transition is individualized based on each child’s development, so there’s no need to artificially speed it up by discouraging signs. Your child will naturally use whichever communication method feels most efficient to them as their confidence with speech grows.
Following Your Child’s Lead—When Individual Development Trumps Timelines
Every child’s developmental path is unique, and this is especially true for language development. Two children might start signing at the same age but phase out signing six months apart, and both could be completely typical. The question isn’t “Am I behind if my child is still signing at 20 months?” but rather “Is my child communicating effectively and showing signs of language progress?” If the answer is yes, let the signing continue naturally. Consider this real example: one 22-month-old might have a vocabulary of 200 words, speak in two-word phrases, and have completely stopped signing. Another 22-month-old at the same developmental level might still use 30-40 signs regularly while speaking 150 words and also combining words into phrases. Both children are developing language typically.
The first simply switched to speech faster; the second is still finding value in the dual system. Neither child should be pushed to change—they should be allowed to transition on their own timeline. The complicating factor: some parents worry that their child “isn’t trying” to talk because they’re still signing. This worry is understandable but unfounded. Research is clear that teaching baby signs will not stop your child from developing verbal speech. All children can benefit from sign language use with no risk to other language skills, including spoken language. Your child isn’t choosing signing over speech because they’re lazy or because signing is an easier escape hatch—they’re using both tools because both are available and useful.
What Parents Should Actually Do During the Transition
The most effective parenting approach during the signing-to-speech transition is to remain neutral and responsive. You don’t need to stop signing to encourage speech; instead, you can continue signing while modeling and encouraging spoken words. If your child signs “more” and says “mo,” you can respond enthusiastically to the spoken attempt while still accepting and responding to the sign. One useful distinction: there’s a difference between continuing to sign if your child initiates it versus actively teaching new signs. As your child’s speech takes off around 18-24 months, it makes sense to shift your energy toward speech modeling and vocabulary building through spoken language. You don’t need to hide signs, but you also don’t need to keep introducing new signs if your child is rapidly acquiring spoken vocabulary.
This naturally reduces the signing load as speech becomes dominant—which is exactly what should happen developmentally. It’s the difference between following your child’s lead and actively driving them in one direction. A practical comparison: imagine you’re teaching a child both piano and violin. As they get older, they might naturally gravitate toward one instrument. The smart move isn’t to throw the other instrument away—it’s to follow their interest, invest more time in what they’re choosing, and let the other fade naturally. That’s how to handle the signing-to-speech transition.
When Parents Worry: Common Concerns About Stopping or Continuing
The most common concern parents have is backwards: they worry they should stop signing to encourage speech, when in reality there’s no benefit to stopping and real risk of losing a useful communication tool. Because teaching baby signs will not impede verbal speech development in any way, there’s literally no downside to continuing signing during the transition phase. Your child’s brain has plenty of capacity for both. The real limitation is your own time and energy—if you’re exhausted trying to maintain sign language while also managing speech development, that’s a valid reason to scale back. But do it for you, not because it will help your child talk faster.
A second concern parents sometimes raise: “My child is 2.5 and still signs sometimes. Are they behind?” The answer depends on their overall language development, not on whether they sign. If they’re combining words, their vocabulary is growing, they’re using speech to communicate most of their needs, and they’re understanding language at an age-appropriate level, then signing occasionally is irrelevant. Some children continue occasional signing into their third year or beyond—especially if it’s been a core part of how they communicate with a hearing parent, a deaf family member, or both. That’s not a red flag; that’s just their communication style.
Special Considerations for Deaf and Hard-of-Hearing Children
The advice above applies to hearing children learning sign language as a second communication system. If your child is deaf or hard of hearing, the entire framework changes. For these children, sign language isn’t a temporary communication bridge—it’s a primary language, and the decision to reduce or discontinue signing should involve your child’s audiologist and speech pathologist, not just developmental timelines.
If you have a deaf child, you may also be introducing spoken language through hearing aids or cochlear implants, speech therapy, or both. The transition between signing and speaking for deaf children is more complex and more variable than for hearing children because it’s intertwined with audiological decisions and access to sound. The general principle still holds—follow your child’s lead—but that lead will be shaped by their access to sound, their language exposure, and their own preferences about which language feels most natural. Consulting with professionals who understand deaf child language development is essential in these cases.
The Long-Term Perspective—Sign Language as a Life Skill
While baby sign language is primarily useful during the pre-verbal and early-speech phase, there’s value in recognizing it as part of your child’s overall communication toolkit. Even if your child stops signing by age 3 and doesn’t encounter sign language again for years, the exposure has developmental value that doesn’t disappear. More practically, if you have deaf family members or will have continued interaction with the deaf community, sign language becomes a family language, not just a baby communication tool. In those cases, continuing to sign—or returning to it later—makes obvious sense.
From a developmental standpoint, once your child has reliably transitioned to speech and their language skills are age-appropriate, the pressure to maintain signing is gone. You can let it fade naturally. If your family decides to preserve sign language skills for cultural, community, or family reasons, that’s a separate decision from developmental support. The transition happens when speech is sufficient for communication; what you choose to do with signing after that is entirely up to you.
Conclusion
There is no deadline for stopping baby sign language because the transition isn’t something you initiate—it’s something your child drives by moving toward speech. For most children, this natural shift happens somewhere between 18 months and age 2, though individual timing varies widely. Instead of asking “When should I stop signing?” ask “Is my child communicating effectively?” If the answer is yes and they’re using fewer signs and more words, the transition is already underway. If your child is still signing actively at 2 or beyond, that’s not a problem—it’s just their communication style, and there’s no benefit to forcing a change.
The bottom line: continue signing as long as it’s useful for your child and your family. Stop when your child stops, which will happen naturally as speech becomes their preferred communication method. Keep supporting speech development through modeling and interaction, but don’t view signing as something that needs to be eliminated. Your child will move on from it when they’re ready, and that’s exactly the way it should work.