Ask a therapist what they spend on Google Ads and the answer is usually a tidy figure picked because it felt comfortable: five hundred dollars, maybe a thousand. Then the first bill arrives, the cost per click looks shocking next to a $150 session, and the ads get paused before they ever had a fair test.
The problem isn't the budget. It's the comparison. A click shouldn't be measured against one session, because a new client rarely comes for just one. Below, we price a new therapy client in dollars, follow a single click until it either becomes that client or doesn't, and size a starting budget to the open hours on your calendar.
People in Therapy Average About 12 Sessions a Year. A New Client Is Worth More Than One $143 Visit.
Two published numbers do most of the work here.
The first is how often people in therapy actually come. A national study of US adults in outpatient mental health care, published in the American Journal of Psychiatry in 2025, found that people receiving psychotherapy averaged 11.8 psychotherapy visits in 2021, up from 9.8 in 2018.
The second is what a session costs when the client pays directly. A 2024 study in Health Affairs Scholar looked at 175,083 therapist listings on Psychology Today and found the posted cash rate averaged $143.26 a session in 2023. Therapists who took no insurance averaged $155.90.
Put those together and a new client at the average cash rate brings in roughly $1,690 in a year. That's the number to hold a click against, not $143.
Three honest caveats. An average is pulled up by long-term clients, so your typical client may come fewer times. The rates are from 2023. And not everyone stays: a large review of 669 studies put the rate of clients who drop out of therapy early at 19.7%, about 1 in 5. On the other side of the ledger sits value that no spreadsheet captures well: clients who return years later, and the friends and family members who book because someone they trust had a good experience with you.
Most Clicks Never Reach an Intake Call. The Few That Do Set Your Cost per Client.
Between a click and a client there are four numbers, and each one shrinks the pile:
- Cost per click. What you pay each time someone clicks your ad.
- Conversion rate. Out of every hundred clicks, how many pick up the phone or fill in your form.
- Cost per inquiry. What you spend on clicks for each call or request that comes in.
- Close rate. The share of inquiries that become a client who attends a first session.
Cost per inquiry divided by close rate gives you the number that matters: cost per client.
LocaliQ, an ad vendor, gives a rough starting point: its benchmark report draws on 3,542 American search campaigns and reports medians, so half the mental health campaigns paid more and half paid less. For mental health it reports a cost per lead of $141.17, the highest of the 16 healthcare categories it tracks, and a conversion rate of 1.85%. Each figure is a separate median, so they don't multiply into one another, and they describe one vendor's sample rather than the whole market.
Here's how the chain plays out, purely as an illustration. If an inquiry costs about $141 and half of inquiries become clients, a new client costs about $282 in ad spend. Set that against roughly $1,690 in first-year sessions and the math works with room to spare. If only one inquiry in five becomes a client, the same $141 inquiries add up to about $705 per client. That's still workable for many practices, but the margin is much thinner.
Your own version of this chain comes from Chapter 1. Once calls, requests and attended first sessions are counted, Google Ads shows your real cost per click and conversion rate, and your attended sessions show your close rate. Until then, treat every number above as a placeholder.
Insurance, Cash Pay and Medicare Put Different Prices on the Same Hour
What a client is worth depends on who pays for the session.
Medicare is the clearest published example. Since January 1, 2024, licensed counselors and marriage and family therapists can bill Medicare directly. Medicare's 2026 national rate for a 60-minute psychotherapy session is $167.00 for a clinical psychologist, before local adjustments. Counselors, marriage and family therapists and clinical social workers are paid 75% of the psychologist amount, which works out to $125.25.
Cash rates sit on either side of that. The Psychology Today study found an average of $143.26 a session, $155.90 among therapists who take no insurance, and $195.91 among psychologists and other PhD-level therapists who don't accept insurance.
Across a year of sessions, those rates produce quite different client values:
- A counselor billing Medicare for 60-minute sessions: about $1,478
- The average posted cash rate: about $1,690
- A psychologist billing Medicare for 60-minute sessions: about $1,971
- An out-of-network psychologist's cash rate: about $2,312
The first session often pays more than the rest. Medicare's 2026 rate for a diagnostic intake evaluation is $173.35 for a psychologist and $130.01 for a counselor, marriage and family therapist or clinical social worker, a little above an hour of ongoing therapy. If most of your new clients start with an intake, the first visit alone covers a bigger share of what you paid to win them.
Commercial insurance rates vary by plan and region and aren't published in a way we could use, so plug in your own. The point isn't the exact figure. A practice whose clients mostly pay cash can afford to pay more per client than one billing a low-paying plan, and a practice that takes several payers should know which one its ads are actually bringing in. That's also why the conversion you send back to Google in Chapter 1 should carry a value: Google can't tell a $1,478 client from a $2,312 one unless you tell it.
Ads Can't Fill Hours You Don't Have
Here is the constraint most budget advice skips. A therapist can only see so many clients a week, and many are already full. In the American Psychological Association's 2025 practitioner survey, "about half (46%) of practitioners reported having no openings for new patients and 40% currently have a waitlist for new clients."
If your calendar is full, paying for clicks is paying to grow a waitlist. Some practices want a short list of people ready to start. A long one produces the reviews nobody wants: people who reached out, waited weeks and never heard back.
So the first budget question isn't "what can I afford to spend?" It's "how many new clients can I start next month?" A solo therapist with two open slots needs a very different budget than a group practice hiring two new clinicians.
A Slow Callback Makes Every New Client Cost More
Of the four numbers in the chain, close rate is the one a practice controls most directly, and it moves with how quickly and how well inquiries are answered.
The reviews we read make the point. In the example market, Louisville, 50 of 95 low-star reviews about therapy practices were about getting in or getting through: requests nobody answered, phones that went to voicemail, intake forms that went nowhere, waitlists nobody mentioned. Each one is the kind of inquiry a practice may have paid to get.
The math is unforgiving. At about $141 an inquiry, a practice that turns half of its inquiries into clients pays about $282 per client. A practice that loses half of those people to slow callbacks turns one in four, and pays about $564 for the same client. The ads didn't get worse. The follow-up did. Chapter 16 covers what a fast, honest intake process looks like.
The First Google Ads Budget Should Match the Clients You Can Start This Month
Now the budget almost writes itself:
Monthly budget = new clients you can start × your cost per client.
With four openings a month and the illustrative $282 per client, that's about $1,128 a month. With no openings, it's zero, and the money is better spent when a slot frees up or a new clinician joins. With ten openings across a group practice, it's closer to $2,800.
Start on the conservative end. The first month is partly about learning what clicks really cost for your searches in your market, so the Isolation campaign from Chapter 2, with its short list of exact-match searches, is where that budget goes. As real costs and attended sessions come in, replace each placeholder in the chain with your own number and adjust.
Two things make the same budget go further. The first is the page the ad lands on: in our experience, a page about the exact specialty someone searched for usually converts better than a general home page, which is the subject of the next chapter. The second is the callback, which you already control.
Next: A Couples Therapy Searcher Should Land on a Couples Therapy Page
A budget only works if clicks turn into requests. In Chapter 4 we look inside the auction itself. A higher bid doesn't buy the top spot by itself. Google judges the ad and its landing page as well, and in its own words, "higher quality ads can often lead to lower CPCs." In a therapy account, quality begins with grouping searches by specialty.
The numbers in this chapter depend on the counting set up in Chapter 1, and the searches they apply to come from Chapter 2. The guide home has the full list.
When a practice brings us in for Google Ads management, this worksheet comes before any keyword: open slots, what a client brings in, and the most we'll pay to win one.
