You went to school to help people, not to read financial statements. But now that you're running (or planning to run) your own practice, your Profit and Loss statement — commonly called a P&L or income statement — is the single most important document for understanding whether your business is actually making money.
The good news: a P&L isn't as complicated as it looks. Once you understand the structure, you can read one in five minutes and make smarter decisions about your practice as a result.
What Is a P&L Statement?
A P&L statement summarizes your business's revenue, costs, and expenses over a specific period — usually monthly, quarterly, or annually. It answers one fundamental question: after collecting all the money that came in and subtracting all the money that went out, did your business make a profit or take a loss?
Every accounting software (QuickBooks, Wave, FreshBooks) generates a P&L automatically from your recorded transactions. If you're using a bookkeeper or accountant, they should be providing you with a P&L at least monthly.
The Four Key Sections of a P&L
1. Revenue (The Top Line)
Revenue is all the money your practice earned during the period. For most OTPs, this includes clinical session fees (private pay and insurance reimbursements), consulting or contract income, product sales (if applicable), workshop or course fees, and any other business income.
2. Cost of Goods Sold (COGS) or Direct Costs
COGS represents the costs directly tied to delivering your services. For a clinical OTP practice, this might include supplies used during treatment (splinting materials, adaptive equipment provided to clients), subcontractor payments (if you pay a COTA or per diem therapist), and direct travel costs for home-based services.
Many solo OTP practices have minimal COGS because the primary "cost" of service delivery is your own time, which shows up differently on the P&L (as owner's draw or salary). If your COGS line is small or zero, that's normal for a service-based solo practice.
Gross Profit = Revenue minus COGS. This tells you how much money is left after covering the direct costs of service delivery.
3. Operating Expenses (Overhead)
Operating expenses are the costs of running your business regardless of how many clients you see. These are your fixed and semi-variable costs. Common operating expenses for OTP practices include rent or office space costs, professional liability insurance, health insurance premiums (if paid through the business), licensure and certification renewal fees, continuing education, software subscriptions (EMR, scheduling, accounting), marketing and advertising costs, professional memberships (AOTA, state associations), phone and internet, accounting and legal fees, and office supplies.
Operating Income (EBITDA) = Gross Profit minus Operating Expenses. This number tells you how profitable your business operations are before taxes, interest, and depreciation.
4. Net Income (The Bottom Line)
Net income is what's left after subtracting everything — COGS, operating expenses, interest, depreciation, and taxes. This is your actual profit. If this number is negative, your business spent more than it earned during that period.
How to Read Your P&L Like a Business Owner
Now that you understand the structure, here's what to actually look at each month.
Track Your Profit Margin
Your net profit margin is net income divided by revenue, expressed as a percentage. For a solo OTP practice, a healthy net profit margin is typically 20 to 40 percent. If you're consistently below 15 percent, either your rates are too low, your expenses are too high, or both.
Watch for Trends, Not Just Snapshots
A single month's P&L tells you very little. Look at trends over three, six, and twelve months. Is revenue growing? Are expenses creeping up? Is your profit margin stable, improving, or declining? Trend analysis catches problems early.
Know Your Biggest Expense Categories
Rank your expenses from largest to smallest. The top three to five categories are where you should focus cost management efforts. For most OTP practices, the biggest expenses are rent/office space, insurance, and marketing. If any single expense category seems disproportionately large, investigate.
Compare Actual vs. Budget
If you have a budget (and you should), compare your actual P&L against it each month. Variances — especially unexpected ones — deserve investigation. Did marketing spend spike because you ran an unplanned campaign? Did revenue drop because of cancellations? The P&L tells you what happened; your job is to understand why.
Using Your P&L to Make Decisions
Your P&L isn't just a scorecard — it's a decision-making tool.
Pricing Decisions
If your profit margin is thin, your P&L will show you whether the problem is revenue (rates too low or not enough volume) or expenses (overhead too high). This distinction drives completely different solutions.
Hiring Decisions
Before hiring an employee or contractor, run the numbers. Can your current revenue absorb the additional cost while maintaining an acceptable profit margin? What additional revenue would the new hire need to generate to cover their cost?
Investment Decisions
Wanting to invest in new equipment, a better EMR system, or expanded marketing? Your P&L shows you whether the business can absorb the cost and how long it will take for the investment to pay for itself.
Tax Planning
Your P&L is the foundation for estimating quarterly tax payments. If your net income is significantly higher or lower than expected, adjust your estimated payments to avoid penalties or overpayment.
Common P&L Mistakes OTPs Make
Mixing personal and business expenses. Every transaction on your P&L should be a legitimate business expense. Personal meals, personal vehicle costs, and non-business purchases inflate your expenses and create problems at tax time.
Not categorizing expenses consistently. If you categorize your EMR subscription as "software" one month and "office supplies" the next, your P&L becomes unreliable for trend analysis. Set up categories once and use them consistently.
Ignoring the P&L until tax season. Your P&L is most useful when reviewed monthly. Waiting until your accountant prepares year-end financials means you've lost twelve months of decision-making data.
Confusing revenue with profit. A $120,000 revenue year sounds impressive until you realize $95,000 went to expenses. Revenue is vanity; profit is sanity.
Financial literacy is the skill most OTPs never learned in school — and the one that determines whether your practice survives or thrives. OT Connected helps you build both clinical and business confidence.