IFS and EMDR: How the Two Therapies Work Together

If you have been reading about trauma therapy, you have probably met these two names more than once. IFS. EMDR. Maybe a friend swears by one. Maybe a therapist's profile lists both. And somewhere in your body there is a quiet question you have not quite said out loud: do I have to choose?

Here is the short answer. IFS and EMDR are two trauma therapies that work very well together. In our practice they are often used in the same course of treatment, and sometimes in the same session. This blend is called IFS-informed EMDR, and it uses the gentleness of parts work to make EMDR processing safer, steadier, and more complete.

In this article we walk through what each therapy does, how they differ, how we decide where to begin with a new client, and what combining them actually looks like from the inside.

What Are IFS and EMDR?

IFS and EMDR are both evidence-based therapies for trauma. Internal Family Systems (IFS) works with the different parts of you and the protective roles they play. Eye Movement Desensitization and Reprocessing (EMDR) works with the memories themselves, helping your brain finish processing what got stuck.

IFS therapy starts from a simple, generous idea: you are not one solid block of feelings. You are made up of parts, and every one of them, including the ones you like least, is trying to protect you. Some parts manage your days. Some rush in when things get too painful. Some carry the hurt itself. If the idea of an inner cast is new to you, we wrote a gentle introduction in our piece on parts work therapy.

EMDR therapy takes a different route to the same destination. Trauma leaves certain memories frozen in the nervous system, so the body keeps reacting as if the danger were still here. EMDR uses bilateral stimulation, usually eye movements, while you hold a memory in mind, so the brain can reprocess it and file it as finished. The racing heart and the bracing shoulders finally get the message that it is over.

IFS vs EMDR: What Is the Difference?

The difference between IFS and EMDR is where they aim. IFS works with the relationships inside you, between your parts and the steady core it calls Self. EMDR works directly on stuck memories. Both are trauma therapies, both are gentler than people expect, and neither asks you to retell your story in detail.

• What it works with. IFS works with your parts and the protective roles they play. EMDR works with specific memories that are still live in the nervous system.

• What a session feels like. IFS is a curious, unhurried conversation with parts of yourself. EMDR is focused processing of a memory with eye movements or tapping.

• Pace. IFS is set by your parts, often slower and more relational. EMDR is structured, in phases, with a clear target for each session.

• Especially good for. IFS suits inner conflict, a harsh inner critic, shutdown, and complex trauma. EMDR suits single-incident trauma, anxiety tied to specific memories, and phobias.

• What changes. In IFS, how your parts relate changes, so protection can relax. In EMDR, how the memory is stored changes, so it stops triggering the body.

If you are searching “IFS vs EMDR”, it helps to know that the versus framing is a bit of a trap. They are not competing for the same job. One tends the relationships in your inner world. The other clears specific debris. Most people who carry trauma need some of both, which is exactly why so many trauma therapists train in the pair.

Can IFS and EMDR Be Used Together?

Yes. IFS and EMDR combine naturally, and the blend has a name: IFS-informed EMDR. In practice it means we bring parts work into the EMDR process, using IFS to prepare for, support, and deepen the reprocessing of traumatic memories.

Here is why the pairing makes so much sense. Parts are created in traumatic moments. The inner critic, the part that goes numb, the part that cannot sit still: each one formed to survive something specific. So when we do parts work, some trauma processing is already happening. We are meeting the part at the moment it was born. EMDR then goes into that same moment and helps the brain complete what was left unfinished. If you would like the mechanics of that, our article on how EMDR works walks through the phases.

Used together, IFS gives EMDR a map of who lives in the memory, and EMDR gives IFS a way to finally settle the memory those parts have been guarding.

How Do We Decide Whether to Start With IFS or EMDR?

We decide together in the first meeting or two, based on your unique needs rather than a formula. There is no rule that says one therapy always comes first. What we look for is how your nervous system and your parts respond when we approach the hard material.

Some signals point toward starting with IFS:

• A part of you leaves the room when things get intense. You go blank, drift, or feel far away. That is a protective part doing its job, and it will not let EMDR processing land until it feels safe.

• The inner critic is loud enough that any progress gets attacked the moment it appears.

• You feel split about therapy itself. Part of you wants this, part of you would rather not open the box.

• Your history is long and layered, with many small wounds rather than one clear event.

Some signals point toward starting with EMDR:

• There is a specific memory, or a small set of them, that you can name and that still hijacks your body.

• You already have decent footing. You can feel a lot without tipping over the edge, which is what therapists mean by staying inside your window of tolerance.

• You have done reflective work before and want targeted processing now.

Either way, the decision is not permanent. Many people begin with parts work and move into EMDR a few weeks later, once the protectors have agreed. Others start with EMDR and discover a part along the way that needs a conversation. We follow what shows up.

What Does Combining IFS and EMDR Look Like in a Session?

In a blended session, we move between EMDR processing and parts work as the moment asks for it. We might be halfway through reprocessing a memory when a part steps in. Instead of pushing through, we pause the eye movements, turn toward that part with IFS, and continue once it feels heard.

An example, with the details changed. Someone is processing a memory of an abusive family member. Partway through, a familiar voice arrives: you are making too much of this, you were always the problem. That is not random. It is the inner critic, and it was born in that very memory, as a way of staying safe around someone unpredictable. So we stop and meet it. What are you protecting? What are you afraid would happen if you softened? Often the critic is exhausted and simply wants someone to know how long it has been on duty. When it relaxes, we return to the eye movements, and the memory usually moves much more freely than before.

The same thing happens with protective parts that block EMDR entirely. If a part dysregulates you every time we get near the material, we do not fight it. We use IFS to work with that protector directly, sometimes for several sessions, until it gives permission. Our companion article on managers, firefighters, and exiles explains why those protectors are so devoted to their jobs.

Here is the picture we find ourselves reaching for. Think of EMDR as the tide coming in to move what has been sitting on the shore for years. IFS is how we make sure no part of you gets caught off guard by the water. We walk the beach first, meet everyone who lives there, and let them know what is coming. Then the tide can do its work, and nobody has to brace.

What makes all of this possible is the steady, curious presence IFS calls Self. When more of you is present in the room, processing goes deeper and feels less like an ordeal. We describe that state in our piece on the 8 C's of IFS.

Who Is a Good Fit for IFS-Informed EMDR?

IFS-informed EMDR is a strong fit for people whose trauma has many layers, who feel at war with themselves, or who found EMDR alone too intense. It is also a good fit for anyone whose inner critic tends to undo the progress they make.

In our practice it tends to help most when:

• The trauma began early. Childhood wounds create the most parts, and those parts have had the longest to settle into their roles. Our article on childhood trauma in adults describes how those early patterns show up later.

• You have tried EMDR before and it felt like too much, too fast.

• You go numb, shut down, or dissociate when emotions rise.

• Talk therapy helped you understand your story, but your body did not get the memo.

Some people do beautifully with one therapy alone. A single, recent, clearly defined trauma may only need EMDR. Someone whose main struggle is inner conflict rather than a stuck memory may only need IFS. Part of our work in the first sessions is telling those situations apart with you.

Do You Have to Choose Between IFS and EMDR?

No. You do not have to choose, and you do not need to arrive knowing which one you want. That is our job, and we do it with you rather than to you.

If you have been holding the question “should I want both?”, here is what we would say across the table: you are allowed to want the thing that works. Sometimes that is one approach. Often it is the two of them, taking turns, each making room for the other. What matters is that the pace belongs to you, and that every part of you, including the one that is nervous about starting, is welcome in the room.

Frequently Asked Questions About IFS and EMDR

Is IFS-informed EMDR different from regular EMDR?

The core of EMDR is the same: the eight phases, the bilateral stimulation, the reprocessing of memory. What changes is how we prepare and how we respond when a part shows up mid-session. Instead of treating a block as resistance, we treat it as a protector with a reason, and we work with it before continuing.

Do I have to talk about my trauma in detail for IFS or EMDR?

No. Neither therapy requires a detailed retelling. EMDR needs only enough of the memory for your brain to locate it, and IFS works with the parts that carry the experience rather than the narrative. Many people find this the biggest relief of trauma therapy.

How long does therapy with IFS and EMDR take?

It depends on how many layers there are and how much preparation your protectors need. A single, recent event may resolve in a handful of EMDR sessions. Layered or childhood trauma usually unfolds over months, with parts work and reprocessing alternating as you go. We check in on pace regularly, and you set it.

Can IFS and EMDR be done online?

Yes. Both work well over secure video, and our practice is fully virtual across New York, Connecticut, and Florida. For EMDR we use on-screen bilateral stimulation or self-tapping, and parts work translates to video with no loss at all.

Which is better for complex trauma, IFS or EMDR?

For complex trauma, the combination usually serves people better than either alone. IFS tends the many protectors that complex trauma creates, and EMDR clears the specific memories underneath them once those protectors allow it.

Start Where You Are

If something in this article felt familiar, that recognition is worth following. Our therapists offer IFS, EMDR, and the two together, virtually across New York, Connecticut, and Florida. You do not need to know which one you want. You just need to be ready to begin.

Book a free 15-minute consultation and we will help you find the right starting point, at a pace that belongs to you.

Deanna DiCostanzo, LCSW, is the founder of Shifting Tides Therapy, a fully virtual practice providing IFS, EMDR, grief therapy, and couples counseling to clients across New York, Connecticut, and Florida.