SOAP stands for Subjective, Objective, Assessment, and Plan — the four sections of a SOAP note. The acronym describes a sequence: what the client reports, what the clinician observes, what the clinician interprets, and what comes next.
This guide explains what each section means in clinical practice, what content belongs where, and the most common mistakes clinicians make when writing them.
Start Free TrialSubjective
What the client reports — their own description of symptoms, mood, life events, and concerns.
Objective
What you observe or measure — affect, behavior, mental status exam findings, screener scores. Verifiable, not interpreted.
Assessment
Your clinical interpretation — diagnosis, formulation, progress toward treatment goals, risk.
Plan
What happens next — interventions used in session, homework assigned, follow-up cadence, referrals.
Subjective is the client's report of their own experience. The defining feature: it's what the client said. Their words, their framing, their interpretation of what's happening.
Common content: reported symptoms, mood ratings, sleep, appetite, recent stressors, relational dynamics, homework completion, and any safety-related statements (with direct quotes when appropriate). The client doesn't have to be technically correct — what matters is capturing what they reported.
Objective is what you observed or measured. The defining feature: another clinician in the room would have seen the same thing.
In mental health, the mental status exam (MSE) anchors this section: appearance, behavior, speech, mood and affect, thought process, thought content, perception, cognition, insight, judgment. Standardized screener scores (PHQ-9, GAD-7) belong here too. The most common Objective mistake is interpretive language — "client was anxious" interprets, while "client reported racing thoughts; observed pacing and intermittent eye contact" describes.
Assessment is your clinical reasoning. This is where Subjective and Objective come together — diagnostic impression, case formulation, progress against treatment goals, and risk formulation.
A strong Assessment connects the dots: it explains how the data in Subjective and Objective fits the working formulation, names progress (or lack of progress) against specific treatment goals, and addresses risk when clinically indicated. Even a brief "denied SI/HI; no acute safety concerns identified" protects the chart.
Plan is action. Specific interventions used in the session, homework assigned, follow-up cadence, referrals, and any treatment plan adjustments.
The most common Plan mistake is genericness. "Continue therapy" is not a plan. A reviewable Plan names the technique used ("introduced thought record around catastrophizing thoughts"), the homework assigned, and what comes next ("continue weekly sessions; revisit medication referral in 3 weeks").
Lawrence Weed developed the SOAP structure in the 1960s as part of the Problem-Oriented Medical Record (POMR). The goal was to make clinical reasoning visible and reviewable in the chart — to keep what the patient said, what the clinician saw, what the clinician concluded, and what the clinician planned each in their own clearly labeled place.
The format started in medicine, spread to nursing and allied health, and eventually to mental health and counseling. The mental-health adaptation kept the four sections but shifted content emphasis — the mental status exam took the place of vital signs in Objective, and case formulation took the place of medical differential diagnosis in Assessment.
S stands for Subjective, O for Objective, A for Assessment, P for Plan. Together they form the four-section structure used in SOAP notes for clinical documentation.
Subjective is what the client reports — their own description of symptoms, mood, and concerns. Objective is what you observe or measure — affect, behavior, mental status exam findings, screener scores. The line between them is who the data comes from. The same fact (e.g., 'sad mood') goes in Subjective if the client reported it and Objective if you observed it.
Assessment is your clinical interpretation — diagnosis, formulation, progress, risk. Plan is what happens next — interventions used, homework assigned, follow-up cadence, referrals. Assessment is reasoning; Plan is action.
The SOAP format was developed by Lawrence Weed in the 1960s as part of the Problem-Oriented Medical Record (POMR). It started in medicine and spread to nursing, allied health, and eventually to mental health and counseling. Today it's the most widely recognized clinical documentation format.
Yes — the order matters. Writing them in order is part of what keeps the note clean. Trying to write Assessment before Objective tends to leak interpretation into observation, and trying to write Plan before Assessment tends to skip the clinical reasoning that justifies the next steps.
AfterSession produces full SOAP notes — Subjective, Objective, Assessment, Plan — from a brief session summary. Clinician reviews and approves every note.