Acceptant and Commitment Therapy (ACT) vs. Cognitive-Behavioral Therapy (CBT): Key Differences & Which Therapy Is Right for You

Updated March 2026

Cognitive-behavioral therapy (CBT) helps people identify and change unhelpful patterns of thinking and behavior that contribute to emotional distress. Acceptance and commitment therapy (ACT) encourages people to change their relationship to thoughts and feelings while taking action that is in line with personal values. The main difference is that CBT focuses on changing thinking patterns, while ACT focuses on increasing mental flexibility.

Both are effective, evidence-based talk therapies. And both methods are widely used by licensed therapists to help people manage anxiety, depression, and other emotional challenges. Understanding the difference between ACT and CBT can help you decide which approach may be the best fit for you.

What is CBT?

CBT is a structured, skills-based form of therapy that focuses on helping people change unhelpful patterns of thinking and behavior that contribute to emotional distress. It works by giving people the skills to:

• Identify negative or inaccurate thought patterns
• Understand how thoughts influence emotions and behaviors
• Practice new ways of thinking and responding to challenging situations

Unlike some other forms of therapy, CBT mostly focuses on the present rather than exploring the past. The goal is to build practical skills that can be used in everyday life to manage stress, emotions, and behavioral patterns more effectively. CBT can be used for depression, anxiety, PTSD, and many other mental health conditions.

CBT is goal-oriented and collaborative. It can even be used in group settings, where CBT skills can be applied so participants can learn from shared experiences and practice strategies together. We use CBT in Sharon, MA, at Rockland Recovery Behavioral Health.

Core CBT techniques

• Cognitive restructuring: Identify automatic negative thoughts, review the evidence for and against them, and develop more balanced, realistic alternatives.
• Behavioral activation: Increase engagement in meaningful or rewarding activities to improve mood and reduce avoidance.
• Exposure: Face feared situations, thoughts, or sensations in order to reduce avoidance and build tolerance.
• Mindfulness & relaxation: Learn to live in the moment and use practical methods to calm down rather than getting caught up in negative thoughts.

What sessions feel like and homework between sessions

You and your therapist work together to spot patterns, practice strategies, and set small, clear goals. Sessions often include reviewing recent situations and applying tools like thought-challenging or problem-solving in real time. The focus stays on the present and on what will help you function better day to day.

Homework between sessions helps you apply these skills in real life. For example, you might use a thought record to manage a stressful conversation at work or practice a new coping strategy during a high-anxiety moment and then discuss what you learned at your next session.

What is ACT?

ACT is also a behavior-based therapy, but it takes a different approach to thoughts and emotions.

Rather than trying to change or eliminate uncomfortable thoughts and feelings, ACT encourages people to change their relationship to those experiences. It aims to increase psychological (mental) flexibility, which means being able to stay present, open, and engaged in life even when things feel difficult. Skills learned in ACT sessions include:

• Acceptance of internal experiences rather than constant control or avoidance
• Mindfulness and present-moment awareness
• Clarifying personal values
• Taking committed action aligned with what matters most

The goal of ACT is within its name: accept that experiences or reactions won’t always be ideal, but commit to staying on track with actions that back your values. One of the benefits of an ACT program is that it’s highly effective for helping people with many types of mental health conditions, like anxiety, depression, and even addiction recovery.

The core processes of ACT

• Acceptance: Making room for uncomfortable thoughts and feelings instead of constantly trying to control, suppress, or avoid them.
• Defusion: Learning to step back from thoughts and see them as mental events rather than absolute truths.
• Present moment awareness: Staying grounded in what is happening right now instead of getting pulled into past regrets or future worries.
• Self-as-context: Recognizing that you are more than your thoughts and emotions—you are the observer of those experiences, not defined by them.
• Values: Clarifying what truly matters to you and identifying the kind of person you want to be in important areas of life.
• Committed action: Taking consistent, meaningful steps guided by your values, even when discomfort is present.

What sessions are like and home practice

ACT sessions are reflective, experiential, and focused on helping you relate differently to your thoughts and emotions. Instead of debating whether a thought is true, you practice noticing it, making room for it, and reconnecting with what matters to you. Sessions often include brief mindfulness exercises and conversations about how to take small, values-based steps forward even when discomfort shows up.

Home practice is about applying these skills in everyday life. For example, if an intrusive thought appears, you might practice defusion by saying, “I’m noticing I’m having the thought that…” and then choose an action that aligns with your values instead of avoiding the situation.

Is ACT a type of CBT?

Sometimes, ACT is described as a “third-wave” behavioral therapy.1 This means it grew out of earlier cognitive and behavioral approaches, including CBT, but expanded the focus beyond trying to change thoughts.

While traditional CBT often works to challenge and restructure thoughts, acceptance and commitment therapy emphasizes acceptance, mindfulness, and values-based action. Both approaches are grounded in behavioral science and are considered evidence-based, but they use different strategies to promote change. However different they are, ACT and CBT can be used together and are complementary, since they teach different skills.

Key differences between ACT and CBT

ACT and CBT share common roots. The core differences lie in how they work with thoughts, emotions, and behavior.

Key similarities between ACT and CBT

While ACT and CBT differ in their approach to thoughts and emotions, they share important similarities. Both are evidence-based behavioral therapies grounded in psychological research. Both focus on building practical skills that can be used in everyday life. And both aim to help people respond more effectively to stress, emotional challenges, and difficult life situations.

ACT vs. CBT for specific concerns

Some people (and clinicians) prefer the structured, skill-based approach of CBT, while others benefit from ACT’s emphasis on acceptance and values-based action. In many cases, clinicians may integrate elements of both.

ACT vs. CBT for anxiety

Both ACT and CBT are widely used to help people manage anxiety.

CBT for anxiety typically focuses on identifying anxious thought patterns and developing strategies to challenge or reframe them. Skills such as thought-challenging, behavior experiments, and tracking patterns between thoughts and emotions are often central components. This is a similar approach to how CBT is used for depression.

ACT approaches anxiety differently. Rather than attempting to eliminate anxious thoughts or sensations, ACT encourages people to notice them without judgment and continue moving toward meaningful action. The focus is on building psychological flexibility and reducing the struggle with internal experiences.

ACT vs. CBT for OCD & intrusive thoughts

When dealing with intrusive thoughts or repetitive mental patterns, CBT often emphasizes identifying distorted thinking and practicing new behavioral responses. Structured exposure and skill practice can help reduce distress and change response patterns over time.

ACT focuses on changing the relationship to intrusive thoughts. Rather than trying to eliminate them, people learn to observe thoughts as passing mental events and commit to actions aligned with their values. This can reduce the impact and power of intrusive experiences.

ACT vs. CBT for chronic stress

For those living with long-term stress or persistent emotional strain, CBT may focus on developing practical coping tools and modifying patterns of thinking that intensify distress.

ACT emphasizes staying present and engaged in life even when stress is high. The goal is not necessarily to remove discomfort but to increase flexibility and ensure that actions remain aligned with personal values.

What does the research say?

Research consistently shows that both ACT and CBT are effective. A 2023 study comparing ACT and traditional CBT found that¹:

• Traditional CBT showed a small advantage for reducing anxiety symptoms in both short- and long-term follow-up
• ACT showed a short-term advantage for increasing mindfulness skills
• Dropout rates were similar between ACT and CBT

Other results show:

• ACT may be more effective at reducing anger than CBT²
• ACT and CBT are similar in effectiveness, and ACT shows promise for people with substance use disorder³
• CBT may be more effective for depression, but ACT is better than no treatment⁴

Researchers also note that outcomes may vary depending on individual characteristics and treatment goals. These findings support the idea that different therapeutic processes can be helpful for different people at different times.

When you start a therapy program, talk to the staff about what evidence-based methods would be right for you. How would CBT vs. DBT or ACT look for your routine? Your mental health? Your future goals?

How Rockland Recovery Behavioral Health uses ACT and CBT for outpatient care

At Rockland Recovery Behavioral Health, we use both ACT and CBT in our group-based, outpatient programs. Our approach is trauma-informed, evidence-based, and non-shaming.

Rather than rigidly adhering to a single model, our clinicians thoughtfully apply ACT and CBT principles based on what will best support each group and individual. Mindfulness practices are woven throughout our programming, helping clients build awareness, flexibility, and resilience.

Our programs are designed for adults who need meaningful mental health support without putting their entire lives on hold. You can start therapy at our Sharon, MA, location by calling 855.520.0531 or scheduling an intake online now. Or, drop by and meet our staff to find out if we’re the right fit for your life.

Footnotes:

1. Journal of Contextual Behavioral Science, The differences between acceptance and commitment therapy (ACT) and cognitive behavioral therapy: A three-level meta-analysis, accessed March 2026
2. Iranian Journal of Psychiatry, Efficacy of Acceptance and Commitment Therapy Compared to Cognitive Behavioral Therapy on Anger and Interpersonal Relationships of Male Students, accessed March 2026
3. Recovery Research Institute, Acceptance & Commitment Therapy (ACT): Preliminary Evaluation of Effectiveness, accessed March 2026
4. The University of Kansas KU News, Review of trials comparing depression therapies ACT and CBT may indicate CBT’s superiority, accessed March 2026