Medically reviewed by Peter Scheid, MD
Medical Director, SILC Health
Clinically reviewed by Christina Kayanan, LMFT, LPCC
Clinical Director, Mental Health Services — SILC Health
Last reviewed: June 16, 2026
If you're asking how many TMS sessions you'll need, you're probably tired — tired of medications that haven't fully worked, tired of feeling like nothing moves the needle, and maybe a little nervous about starting something new. That's a normal place to be. The short answer: most people complete somewhere between 20 and 36 sessions of TMS (transcranial magnetic stimulation, a non-drug brain treatment using magnetic pulses) over about four to six weeks, though the exact number depends on your response and your treatment plan.
What TMS Actually Is
TMS stands for transcranial magnetic stimulation — a treatment that uses magnetic pulses, similar in type to what's used in an MRI machine, to stimulate specific areas of the brain involved in mood regulation. It's not electroconvulsive therapy (ECT, a different treatment that uses electrical currents under anesthesia), and it doesn't require sedation or a hospital stay. You sit in a chair, a coil is positioned near your scalp, and you feel a tapping sensation while the machine delivers pulses. Most people are in and out within 20 to 40 minutes and drive themselves home afterward.
The FDA (the federal agency that approves medical treatments and devices) has cleared TMS specifically for treatment-resistant depression — meaning depression that hasn't responded fully to at least one course of antidepressant medication. It's typically considered when someone has tried medication and therapy without the relief they were hoping for, not usually as a first step.
So, How Many Sessions Does TMS Actually Take?
The FDA clearance for TMS is based on protocols that generally involve daily sessions, five days a week, for about four to six weeks. After that acute phase, some people move into a shorter taper — sessions spaced further apart — to help maintain progress. Added together, a full course often lands somewhere in the 30-to-36-session range, though shorter courses are common depending on how someone responds.
- Acute phase: typically 5 days a week for 4-6 weeks
- Taper phase (if used): sessions spaced out over 1-3 additional weeks
- Total course: often falls between 20 and 36 sessions
- Each session: usually 20-40 minutes, done in an outpatient setting
Why the Number Varies From Person to Person
No two treatment courses look identical, because no two brains — or histories — are identical. A few things that can shift your total session count:
- How early you start noticing shifts in mood, sleep, or energy
- Whether you have co-occurring conditions like anxiety or PTSD (post-traumatic stress disorder) that are also being treated
- Which TMS protocol your provider uses — some newer accelerated protocols compress the schedule into fewer days
- Whether you and your care team decide maintenance sessions are worth continuing after the initial course
- How your body responds physiologically — some people notice change by week two, others need the full course before shifts show up
This is part of why an initial evaluation matters so much. A good provider isn't just counting you into a generic 36-session package — they're building a plan around your history, your prior treatment attempts, and what's realistic for your schedule and life.
What a Session Actually Feels Like
Most people describe the sensation as a tapping or knocking feeling on the scalp, sometimes with mild scalp discomfort in the first week that tends to ease as sessions continue. You're awake and alert the entire time — no anesthesia, no recovery room. Many people return to work or errands immediately after. Because sessions are frequent, a lot of people build them into a lunch break or a stop on the way to or from work, which is worth thinking through if you're weighing whether this fits into your week.
Is TMS the Right Next Step for You?
TMS isn't usually where depression treatment starts — it's often considered after medication and talk therapy, like CBT (cognitive behavioral therapy, a structured approach that works on unhelpful thought patterns), haven't brought enough relief. If that's where you are, it might be worth exploring. If you're earlier in your journey, or if there's also a substance use piece to what you're carrying, a broader assessment — sometimes using ASAM levels (a national scale used to match people to the right intensity of treatment) — can help map out whether TMS, medication management, therapy, or a combination makes sense first.
This is also a moment where a lot of people quietly wonder whether depression this stubborn means something more serious. It doesn't mean you've failed at treatment — it means your brain needed a different tool. That's worth saying plainly, because shame keeps a lot of people from picking up the phone.
If any of this is swimming around in your head right now, you don't have to sort it out alone before you call. Reach out to (844) 422-8640 and talk it through with someone who won't rush you or push you toward a decision. No pressure, no obligation — just a conversation about what's going on and what your options actually look like.
Paying for TMS: What to Know About Insurance
If you have an employer-sponsored PPO-style health plan, there's a good chance TMS is a covered benefit once treatment-resistant depression is documented — but coverage details, session limits, and prior authorization requirements vary widely by plan. Many private plans also include out-of-network benefits, meaning you may have more flexibility in choosing a provider than you'd expect. The most reliable way to know what your specific plan covers is a free insurance verification call, where someone reviews your benefits with you before you commit to anything.
We also know confidentiality matters here. Mental health treatment is private, and a lot of people worry about what an employer might see. A verification call is a low-barrier way to get real answers about cost and coverage without putting anything on the record until you're ready.
Getting Started
If TMS feels like the right next question to ask, the first real step isn't a 36-session commitment — it's one conversation. SILC Health works with people across the country, either through direct programs or trusted partner facilities, to help match you with the right level of care, whether that's TMS, medication management, therapy, or a fuller picture that includes co-occurring substance use support. Bringing a family member onto that first call is completely fine, and often helpful — sometimes it's easier to hear the plan when someone else is listening too.
You don't need to have this all figured out before you dial. Call (844) 422-8640, ask your questions, verify your insurance, and see what a realistic plan looks like for you. That's the whole first step.