Set a med-spa marketing budget from available capacity, contribution and cash you can afford to put at risk during a test. Do not begin with a percentage of revenue or an agency's preferred package. Those figures may be easy to quote, but they do not explain how many additional appointments your team can support or what it can afford to acquire.
The worksheet below uses your own figures and a deliberately hypothetical example. It is an operating model, not a financial forecast or an industry benchmark. Work with the person responsible for your practice's finances to define the costs, timing and assumptions before committing money.
Decide what the budget is meant to achieve
Separate a new-patient acquisition test from retention work, a website rebuild and the basic operating costs of keeping your digital systems available. They may belong in the same annual plan, but they should not share one unexplained acquisition-cost target.
For a small test, define the service or consultation pathway, location, observation period and desired administrative outcome. You might want more attended consultations for a currently underused pathway. That is more measurable than grow the med spa.
Do not promise a treatment outcome or use a booking as proof that treatment will happen. Consultation attendance and paid treatment are distinct stages, and the time between them affects both reporting and cash flow.
Find the capacity you can actually offer
Ask reception and the practice lead how many additional appointments can be supported in the relevant period. Include response coverage as well as calendar space. A spare treatment slot is not useful marketing capacity if the team cannot process new inquiries or provide an appropriate initial appointment.
Record restrictions by service and location. Availability for one practitioner does not mean the promoted consultation route is available. Keep existing patients' needs and the practice's clinical scheduling rules out of a simplistic fill every slot calculation.
Then identify the bottleneck. It may be inquiries, reachable conversations, consultation availability or something later in the pathway. Increasing acquisition spend is only one possible response. If existing requests are waiting for a reply, solving the administrative bottleneck may come first.
Use contribution, not the headline treatment price
For this worksheet, define contribution as collected revenue from the specified activity minus the variable costs your financial lead includes for that activity. The precise definition should be documented. Variable costs might include relevant consumables, payment charges and incremental staffing; their treatment depends on your actual accounting and operating model.
Do not assume that contribution equals profit. Fixed overhead, taxes, refunds, timing differences and other costs may still need to be accounted for. Do not build the test around anticipated repeat visits unless you have reliable cohort evidence and can tolerate the delay before any contribution arrives.
The practice needs to decide how much contribution must remain after acquisition. That decision produces an acquisition allowance, not a universal answer about what every med spa should spend.
Write the relationship plainly: allowable acquisition cost per new patient equals the selected contribution basis minus the amount that must remain under your approved model. When the result is negative or uncertain, the proposed economics are not ready for a confident spending commitment.
Work backwards through an observed pathway
If you have reliable recent data for the same offer, calculate the administrative stages separately: unique inquiry to booked consultation, booked to attended consultation, and the later outcome used in your financial model. Use cohorts with enough time to mature and keep pending outcomes out of invented conversion rates.
If you do not have those figures, say unknown. Build a capped learning test rather than presenting a spreadsheet as a forecast. A published industry conversion rate cannot substitute for your response process, offer, location and capacity.
For example, if the model permits $120 in acquisition cost per new patient and only one in four comparable unique inquiries leads to that defined outcome, the implied allowance is $30 per inquiry. That calculation is only meaningful if the underlying definition and observed rate are trustworthy. It is not a recommendation to bid $30 for any med-spa lead.
An illustrative budget calculation
Imagine a practice reviewing one approved service pathway. These numbers are synthetic and do not describe a Fyntrix client or a typical med spa.
- Selected collected-revenue basis per new patient: $500.
- Variable costs included in this simplified model: $220.
- Contribution on that basis: $280.
- Contribution the financial lead wants to retain after acquisition: $160.
- Acquisition allowance per new patient: $120.
- Supported additional new-patient capacity for the period: 12.
The capacity-based acquisition envelope would be 12 multiplied by $120, or $1,440. That envelope includes whatever acquisition costs the model specifies; it is not automatically all available for advertising.
Suppose $600 of the envelope is allocated to management and landing-page work for the test. That leaves $840 for media under these assumptions. If the practice instead spends $1,440 on media and adds $600 outside the model, the total becomes $2,040, or $170 per new patient at 12 outcomes. The original $120 allowance would not have been met.
If only six new-patient outcomes materialise, the same $2,040 would be $340 per outcome. If none materialise, report the spend and zero outcomes; do not display a $0 acquisition cost. This sensitivity is why you need an affordable test limit, not just a hopeful target.
Copy this med-spa budget worksheet
Use one worksheet for each distinct offer and period. Record a responsible person beside every input.
- Purpose: acquisition test, retention, website project or ongoing operations.
- Offer and capacity: service pathway, location, period and genuinely supportable additional outcomes.
- Cash ceiling: amount the practice can afford to spend even if the test produces no new patient revenue.
- Revenue basis: collected amount, time horizon and exclusions.
- Variable-cost basis: included costs, method and financial approver.
- Required retained contribution: amount to remain after acquisition on the selected basis.
- Acquisition allowance: contribution minus required retained contribution.
- Nonmedia costs: management, setup, creative, page work and other included acquisition costs.
- Media allowance: acquisition envelope less the costs already allocated to it.
- Observed pathway: unique inquiries, booked consultations, attendances and defined later outcomes, with dates.
- Uncertainty: pending outcomes, small sample, different service mix or unavailable evidence.
- Approval and review: spend owner, monitoring frequency, review date and stop conditions.
Keep a base scenario, a lower-outcome scenario and a zero-outcome scenario. The zero-outcome case answers the practical question: can we afford to learn that this test did not work as expected? It should not threaten the practice's ability to meet existing commitments.
Do not treat a daily ad budget as the entire control
Ask the campaign manager to explain the billing settings used in the account, including how delivery can vary. Google describes those settings in About average daily budgets. An approved internal test envelope needs monitoring and a person able to act; a notification alone is not the same as a guaranteed stop.
Also control scope. If the agency adds another campaign, location or promoted service, record whether it changes the agreed envelope or simply divides the same budget. Otherwise a carefully modelled initial test can quietly become several unrelated experiments.
Review the outcome without hiding the assumptions
Compare the actual spend basis and actual outcome basis with the ones approved. Separate a campaign that generated promising but still-pending inquiries from one that created fully observed outcomes. Check whether capacity, price, service availability or response coverage changed during the test.
For the reporting definitions, use medical practice marketing ROI. If inexpensive submissions are distracting from the later pathway, review why cheap med-spa Facebook leads do not book. These checks come before an automatic budget increase.
Fyntrix's measurement and improvement work can help make the model and its evidence clearer. The initial calculation still belongs to your practice and its financial decision-makers.
Choose a test you can afford to learn from, not a percentage you cannot explain.