What Is the 15 Minute Rule for OCD?

By Justin La Rose, RP, M.Psy · Registered Psychotherapist (CRPO) · Clinical Director, The OCD Clinic

Evidence last reviewed: October 2026

The 15 minute rule for OCD is a delay: when the urge to do a compulsion hits, you wait 15 minutes before doing it. People often use it as a step toward dropping the ritual. The catch is that waiting it out, or distracting yourself until the urge goes quiet, can turn into a ritual of its own.

The short answer

  • Recommended treatment: NICE guidance (CG31) and the American Psychiatric Association’s practice guideline (Koran, 2007) both recommend CBT including ERP as a first-line treatment for OCD.
  • ERP has strong trial evidence: A meta-analysis of 37 randomized trials found large effects for CBT including ERP compared with waitlist and placebo (Öst, 2015).
  • Exposure works through new learning: Exposure therapy is thought to work through inhibitory learning, where your brain meets evidence that violates what it expected, as described by Craske and colleagues (2014).
  • Distraction has a cost: Trying to suppress a thought produces a small to moderate rebound of that thought, according to a meta-analysis by Abramowitz and colleagues (2001).
  • In my practice: A delay helps most when it’s planned as a first rep toward no ritual, and least when the 15 minutes become a countdown you have to survive.

How does the 15 minute rule work, as people describe it online?

As it circulates online, the rule is simple: notice the urge, set a timer for 15 minutes, and don’t do the compulsion until the time is up. If you still want to do it when the timer goes off, you can, or you set another 15. Some versions use a shorter or longer wait.

The idea is to put space between the urge and the ritual in the middle of an OCD episode. You won’t find it as a named treatment in the guidelines I rely on. They recommend ERP.

Why can waiting it out become a ritual?

Waiting becomes a ritual when you use the 15 minutes to get rid of the feeling instead of learning you can carry it. If you get through the wait by breathing, grounding or keeping busy, your brain credits the waiting and the distraction. That’s negative reinforcement: whatever brings relief gets repeated. You’re still doing what the bully says, just later.

I know this one from my own life. After a dog attacked me as a kid, I walked home from the subway holding my keys like a weapon, for years. I was never attacked, so the keys got the credit. A timer can get the same credit, and so can whatever you did to get through the wait.

The 15 minute ruleERP
The aimPut the ritual offLeave the ritual out
During the waitOften distraction, breathing or keeping busyStaying in contact with the trigger on purpose
What your brain learnsI got through it by waitingWhat OCD predicted didn’t happen, or I carried it anyway
The riskThe timer becomes the new ritualHarder up front
Where it fitsA first rep, if it’s plannedThe treatment itself

What does ERP do instead of a delay?

ERP drops the countdown along with the ritual and tests what OCD predicts: that something bad will happen, or that you can’t stand it. Finding out is called expectancy violation. It’s like the gym. Two-pound weights are a fine place to start, and we can make them hard, but nobody stays on them forever. A delay can be a first rep. The goal is no ritual at all.

If you want the full picture, read what ERP therapy is or see how we deliver Exposure and Response Prevention (ERP) in Toronto and online across Ontario. Why action matters more than analysis here is the theme of the two types of therapy.

Frequently asked questions

Is the 15 minute rule bad for OCD?

Not necessarily. A planned delay can be a useful first step, especially early on. The trouble starts when the 15 minutes become something you get through by distracting yourself, because then the waiting gets the credit.

What if I do the compulsion after the 15 minutes are up?

Then you have information: how strong the urge was, what OCD predicted and what actually happened. Write it down. Over time the aim is to leave the ritual out entirely, and a therapist can help you build up to that in steps.

Does the 15 minute rule work for mental compulsions?

It’s harder, because mental rituals like reviewing or praying can keep running quietly while you wait. In my practice, people often find the countdown itself becomes something they monitor. ERP for mental compulsions focuses on catching the ritual and dropping it.

Where can you go deeper?

If you're experiencing these symptoms, evidence-based treatment can help. We treat OCD, and only OCD, with Exposure and Response Prevention (ERP).

Book a Free Consultation

How we researched this page

This page draws on NICE guidance CG31, the American Psychiatric Association’s practice guideline (Koran et al., 2007), a meta-analysis of 37 randomized trials of CBT and ERP (Öst et al., 2015), Craske and colleagues’ 2014 paper on inhibitory learning and a 2001 meta-analysis of thought suppression by Abramowitz and colleagues, alongside what I see in my practice. None of these sources tested a 15 minute delay directly, so what this page says about the rule itself is clinical observation, not trial data.

A note on my perspective

I run a private clinic that treats OCD with ERP, and I'm paid when people book with us. Read what I write with that in mind. Public and lower-cost routes exist too, and the Ontario OCD treatment guide lays them out next to ours.

About the author

Justin La Rose, RP, M.Psy is a Registered Psychotherapist with the College of Registered Psychotherapists of Ontario (CRPO) and Clinical Director of The OCD Clinic in Toronto. He has worked in mental health for more than 25 years and treats OCD with Exposure and Response Prevention (ERP). You can confirm his registration on the CRPO public register.

Client stories on this site are composites, with names and identifying details changed. How we write client stories

How to cite this page

La Rose, J. (2026). What Is the 15 Minute Rule for OCD?. The OCD Clinic. https://theocdclinic.ca/ocd-faq/what-is-the-15-minute-rule-for-ocd