Running Costs: How to Operate an On-Site Optometry Business Monthly
On-Site Optometry Running Costs
Expect monthly running costs for On-Site Optometry to start around $60,000 in 2026, excluding Cost of Goods Sold (COGS) The largest fixed expense is payroll, totaling approximately $49,208 per month for the initial 75 Full-Time Equivalent (FTE) staff, including two Optometrists and one Operations Manager Fixed overhead—covering insurance, office rent, and software—adds another $9,650 monthly This model requires tight cash management, especially given the initial $645,000 in capital expenditure (CapEx) for vehicles and equipment You must maintain sufficient working capital, as the model shows a minimum cash requirement of $295,000 occurring in May 2026, just three months after the projected February 2026 break-even date This guide details the seven core recurring expenses you must defintely track to ensure profitability
7 Operational Expenses to Run On-Site Optometry
#
Operating Expense
Expense Category
Description
Min Monthly Amount
Max Monthly Amount
1
Staff Payroll & Benefits
Fixed
Payroll for 75 FTE staff, including two Optometrists, totals $49,208 per month in 2026.
$49,208
$49,208
2
Wholesale Inventory Costs
Variable
Wholesale Eyewear and Contact Lenses are a variable cost of goods sold (COGS) estimated at 140% of total sales revenue in 2026.
$0
$0
3
Administrative Office Rent
Fixed
The administrative office rent is a fixed cost of $2,500 per month for coordination and inventory storage.
$2,500
$2,500
4
Specialized Insurance Costs
Fixed
Total monthly insurance costs are $4,100, covering vehicle fleet, professional liability, and general business insurance, which is defintely required.
$4,100
$4,100
5
Mobile Fleet Expenses
Mixed
Vehicle operating costs are variable at 30% of revenue, plus a fixed $750 monthly for Fleet Management Software.
$750
$750
6
EHR & Practice Software
Fixed
Monthly software costs include $1,500 for the Electronic Health Record (EHR) and Practice Management system.
$1,500
$1,500
7
Office Utilities & Security
Fixed
Utilities, Internet, and security systems for the administrative office total $800 monthly.
$800
$800
Total
All Operating Expenses
$58,858
$58,858
On-Site Optometry Financial Model
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What is the total required monthly operating budget for the first 12 months?
The required monthly operating budget for On-Site Optometry, excluding variable cost of goods sold (COGS), is $58,858, which combines fixed overhead and payroll. Understanding this baseline is crucial before factoring in product margins, which is why tracking metrics like utilization rate is key to determining What Is The Most Important Indicator Of Success For On-Site Optometry?
Monthly Core Burn
Fixed overhead totals $9,650 monthly.
Estimated payroll runs high at $49,208 per month.
This sum sets the minimum revenue floor needed.
This estimate defintely excludes inventory costs.
Budget Levers
You must cover $1,961 in costs daily (30 days).
Focus immediately on securing corporate contracts.
Payroll is the largest cost driver at 83.6% of this spend.
Every exam must generate strong contribution margin.
Which recurring cost category represents the largest percentage of total expenses?
The largest recurring expense for On-Site Optometry will defintely be Optometrist payroll, as provider time is the primary bottleneck and cost driver for the service component, even though inventory COGS will scale directly with retail sales volume; understanding this split is key to your unit economics, as explored in Is On-Site Optometry Currently Achieving Sustainable Profitability?
Payroll Cost Structure
Optometrist salaries are largely fixed per mobile unit deployed.
If a provider costs $1,200 per day, they must cover this cost regardless of volume.
This requires high utilization; aim for 8 to 10 exams daily per provider to cover salary comfortably.
Low utilization means fixed payroll eats contribution margin quickly.
Payroll scales stepwise—adding a new provider adds a fixed block of cost.
Inventory COGS Scaling
Inventory Cost of Goods Sold (COGS) scales directly with retail revenue.
If the average frame sale is $350, expect COGS to be around 35% ($122.50).
COGS is a variable cost, meaning it doesn't pressure break-even unless retail volume is very high.
The contribution margin on exams is high, but the margin on retail frames funds overhead.
If the retail mix is only 20% of total revenue, COGS will remain subordinate to labor costs.
How much working capital is required to cover costs until sustainable profitability?
The working capital requirement for On-Site Optometry is the total cash deficit accumulated until you comfortably exceed the $295,000 minimum cash threshold projected for May 2026. This capital must cover all operational burn until revenue consistently surpasses fixed and variable costs.
Hitting the Safety Floor
Reduce average monthly operating burn from $40k to $25k.
Secure 3 large corporate contracts before Q4 2025.
Increase average revenue per visit (ARPV) by 15% through frame attachment rates.
Ensure fixed overhead stays below $15,000 monthly through Q1 2026.
Runway Calculation Context
To determine the exact runway needed, map your current cash position against the projected monthly net burn rate leading to May 2026. If the current burn is, say, $35,000 per month, you need $295,000 plus 18 months of coverage to reach that date safely, assuming no new funding. Have You Considered The Best Strategies To Launch On-Site Optometry Successfully? If onboarding new corporate clients takes longer than 60 days, your cash needs defintely increase.
Verify the $295k minimum cash point calculation date.
Model a 20% delay in corporate contract closing timelines.
Track optometrist utilization rates weekly.
Ensure initial mobile unit costs are fully capitalized.
If revenue targets are missed by 25%, how will we cover the fixed monthly overhead?
If revenue targets are missed by 25%, you must immediately freeze non-essential hiring and defer discretionary spending to ensure cash flow covers the $9,650 fixed overhead base. The primary lever here is pausing growth-related headcount, like a planned Marketing Manager full-time equivalent (FTE) reduction, until revenue stabilizes.
Covering The Cash Gap
If revenue drops 25%, your cash flow needs immediate triage.
Fixed overhead for On-Site Optometry is $9,650 monthly.
This amount must be covered before paying variable costs.
If your target revenue was $50,000, a 25% miss removes $12,500.
Temporary Cost Reduction Levers
Pause planned hiring, specifically the Marketing Manager FTE.
Cut non-essential travel and training budgets immediately.
Monthly running costs, excluding inventory, start near $60,000, with specialized payroll accounting for the vast majority at $49,208.
The essential fixed overhead, covering rent, insurance, and core software, totals $9,650 per month before accounting for labor expenses.
A critical working capital buffer of at least $295,000 is required to sustain operations until May 2026, despite a projected break-even point in February 2026.
The primary profitability hurdle is the high variable cost structure, where wholesale inventory (COGS) is projected to consume 140% of sales revenue in 2026.
Running Cost 1
: Staff Payroll & Benefits
Payroll Dominance
Your 2026 payroll for 75 full-time staff, which includes two essential Optometrists, hits $49,208 monthly. This expense is your single biggest fixed cost, so managing headcount scaling is critical for profitability in this mobile clinic model.
Estimating Staff Cost
This $49,208 monthly figure covers salaries, payroll taxes, and employee benefits for 75 FTE staff planned for 2026. You need quotes for healthcare plans and estimates for employer-side payroll taxes to finalize this number defintely. Since this is the largest fixed expense, every new hire decision directly impacts your break-even point.
Salaries for 73 roles plus 2 Optometrists.
Employer payroll tax burden (FICA, unemployment).
Cost of the employee benefits package.
Controlling Headcount Spend
Controlling 75 salaries requires disciplined hiring based on throughput, not just volume projections. Avoid over-hiring administrative support too early; use outsourced contractors until volume justifies a full-time salary plus benefits. Negotiate health plan renewals aggressively every year to keep costs flat.
Tie hiring strictly to booked service volume.
Use part-time or contract labor first.
Benchmark Optometrist compensation against regional averages.
Actionable Cost Breakdown
If you need to cut $10,000 in monthly fixed costs, payroll is where you look first. Understand the blended cost per employee, which is roughly $656 ($49,208 divided by 75). Every hiring decision must clear a high hurdle rate before adding to this base.
Running Cost 2
: Wholesale Inventory Costs
Inventory Cost Trap
Your wholesale inventory cost structure is unsustainable right now. In 2026, the cost for eyewear and contact lenses is projected to hit 140% of total sales revenue. This defintely means you are losing 40 cents on every dollar sold just acquiring product before accounting for any operating expenses like payroll or rent.
Inventory Cost Basis
This 140% COGS figure covers the wholesale purchase price of all prescription eyeglasses and contact lenses you sell. To calculate this, you must track supplier invoices against the final retail price charged to the client. If projected sales revenue hits $1 million, the inventory cost alone is $1.4 million, which is the critical input here.
Inputs: Supplier unit cost vs. Retail price.
Year: Projected for 2026.
Impact: Directly reduces gross margin.
Margin Improvement Tactics
You must immediately focus on increasing your retail markup to get this ratio below 100%. Negotiate better volume discounts with frame distributors or shift the sales mix toward higher-margin, lower-cost proprietary products. Avoid deep discounting frames just to clear old stock off the shelves.
Target a 50% minimum gross margin.
Review supplier agreements quarterly for better terms.
Reduce carrying costs on slow-moving inventory.
Profitability Risk Alert
A Cost of Goods Sold exceeding 100% of revenue guarantees operational losses, no matter how many eye exams you perform. With $49,208 in monthly payroll alone, you need massive sales just to cover inventory costs before paying staff or rent. This ratio breaks the business model.
Running Cost 3
: Administrative Office Rent
Office Rent Baseline
Your dedicated administrative space costs a fixed $2,500 monthly. This overhead supports coordination and holding essential inventory, separate from the daily mobile clinics. It’s a baseline expense regardless of how many exams you book this month.
Storage Overhead
This $2,500 covers the lease for the central hub, which is crucial for non-mobile functions. Inputs needed are the signed lease agreement terms and the expected duration of coverage. This sits alongside payroll and software as a core fixed commitment in your initial operating budget.
Covers coordination space.
Holds reserve inventory.
Fixed monthly commitment.
Rent Management
Because this is fixed, you can’t cut it per visit, but you can negotiate the baseline. Avoid signing long leases before proving volume; look for defintely flexible 12-month terms initially. A common mistake is over-leasing space for future growth; keep the footprint tight until you scale past 75 FTE staff.
Fixed Cost Clarity
Track this $2,500 carefully against the $800 in office utilities and security. If your administrative footprint is too large, this fixed drain will crush unit economics before mobile revenue scales sufficiently. It’s the cost of being centralized.
Running Cost 4
: Specialized Insurance Costs
Insurance Overhead
Total monthly insurance spend is fixed at $4,100, covering the mobile fleet, professional errors, and general business risks. This is a non-negotiable monthly drain that needs to be covered before you see a single patient.
Insurance Breakdown
Your total fixed insurance cost is $4,100 per month. The largest component is $2,500 allocated to Vehicle Fleet Insurance, which is high because you run mobile clinics. Professional Liability coverage costs $1,200 monthly to protect against malpractice claims from licensed optometrists.
Vehicle Fleet Insurance: $2,500
Professional Liability: $1,200
General Business Insurance: $400
Optimizing Premiums
You can shop around for better rates on the $2,500 fleet insurance, but don't cut liability coverage. Ask brokers about bundling general and fleet policies; this might yield savings of 5% to 10%. A higher deductible reduces the monthly premium, but you must have the working capital to cover it if needed. You defintely need quotes.
Shop carriers annually for quotes.
Bundle general and fleet policies.
Increase deductibles cautiously.
Fixed Cost Ratio
Since this $4,100 is fixed, it must be covered by your service revenue before payroll hits. Compared to the $49,208 monthly payroll for 75 FTE staff, insurance represents about 8.3% of that major fixed cost alone. Know this number when setting your exam fees.
Running Cost 5
: Mobile Fleet Expenses
Fleet Cost Structure
Your fleet costs are split: 30% of revenue covers variable operating expenses like fuel and maintenance, while $750 monthly is a fixed fee for fleet management software. This split means every service run directly impacts your immediate contribution margin before software costs are considered.
Inputs for Fleet Budget
Vehicle operating costs cover fuel, maintenance, and tolls—the direct cost of moving the mobile clinic to corporate sites or homes. To estimate this expense, you must project monthly revenue to apply the 30% variable rate. The fixed $750 software fee supports routing and compliance tracking.
Optimizing Vehicle Spend
Managing the 30% variable rate depends entirely on route density and utilization. High travel between low-volume stops quickly erodes margins. Optimize scheduling to stack appointments geographically. You should defintely review the software contract annually for unused features.
Margin Protection
Given that wholesale eyewear costs 140% of sales, aggressively managing this 30% variable fleet expense is non-negotiable. Savings here directly improve your gross profit potential before considering fixed payroll and rent obligations.
Running Cost 6
: EHR & Practice Software
Software Cost is Fixed
Your essential monthly software spend for compliance and patient records is fixed at $1,500 for the combined Electronic Health Record (EHR) and Practice Management system. This cost underpins all revenue capture, so don't treat it as discretionary overhead when planning runway.
EHR Cost Drivers
This $1,500 covers your core operational spine: the EHR for patient charting and the Practice Management system for scheduling and claims submission. Since you project operating with two licensed optometrists in 2026, this is a fixed, per-month cost necessary before the first exam is billed. It’s the price of entry for modern medical practice.
Number of active practitioners.
Required compliance modules (HIPAA).
Data storage needs.
Managing Software Spend
You can't defintely skimp on compliance software, but you can negotiate contract terms aggressively. Look for bundled pricing if they offer integrated patient portals or telehealth features you plan to use later. If onboarding takes time, ensure the contract allows for phased user licensing instead of paying for all seats upfront.
Negotiate multi-year discounts.
Avoid unused feature add-ons.
Check integration fees carefully.
Compliance is Not Optional
Underestimating the complexity of healthcare billing compliance is a huge risk; a cheap, non-compliant system forces costly rework or fines later. This $1,500 is insurance against operational failure, not just a software subscription. Honestly, it's a non-negotiable base cost for running a legitimate mobile clinic.
Running Cost 7
: Office Utilities & Security
Fixed Office Base Cost
Your administrative office requires $800 monthly, fixed, just for basic access and safety. Utilities and internet total $500, while security systems add another $300. This cost hits your P&L every month, no matter how many eye exams you complete.
Inputs for Utility Budgeting
To budget this, you need firm quotes for commercial-grade internet, which we estimate at $500. The $300 security cost assumes a standard alarm monitoring package for the office space. This cost is independent of your $2,500 rent expense.
Internet service tier selection
Alarm monitoring contract length
Office square footage affects utility draw
Managing Base Overhead
You can't easily negotiate down monitoring fees, but don't overbuy bandwidth for admin staff. Defintely ensure you aren't paying for excessive security features you won't use. If you scale down the physical office later, this $800 drops, but that's a big move.
Audit internet speed vs. actual usage
Bundle services if possible
Avoid premium security tiers
Contextualizing Fixed Costs
While $800 is a necessary fixed cost, it's small compared to payroll at $49,208 or insurance at $4,100 monthly. Keep utilities lean, but recognize that your primary fixed burden is personnel, not the lights and internet.
Base fixed operating costs, including payroll, start near $58,858 monthly in 2026 This excludes variable costs like inventory, which adds an estimated 140% to your Cost of Goods Sold (COGS)
The largest expense is staff payroll, projected at $49,208 per month for the 75 FTE team, including two Optometrists and the Operations Manager
The financial model projects a quick break-even date in February 2026, requiring only two months of operation to cover recurring expenses
Initial CapEx is substantial, totaling $645,000 for mobile clinic vehicles ($400,000) and specialized medical equipment ($150,000)
Wholesale inventory (eyewear and contact lenses) is projected to consume 140% of revenue in 2026, decreasing slightly to 125% by 2030
The model shows a minimum cash requirement of $295,000 occurring in May 2026; this buffer is essential to manage early operational fluctuations
About the author
Ryan Spencer
First-Time Founder Guide Writer
Ryan Spencer writes for Financial Models Lab, where he focuses on launch budget planning and simple launch planning for first-time founders. He helps readers estimate startup needs before opening a physical location, breaking down business costs in clear, practical language. His work is built for people who want a realistic view of what it really takes to open a business, so they can plan with more confidence and fewer surprises.
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