How to Read a Dental Practice Profit and Loss Statement

Read a dental practice profit and loss statement by checking its accounting basis and period, identifying what revenue means, separating provider compensation from other costs, and explaining the change in profit beside the change in revenue. Review dollars and percentages together. A busier month can produce the same profit while leaving less margin on each revenue dollar.

The P&L, also called an income statement, summarizes revenue and expenses for a period. The SEC financial-statement guide explains that function. This guide helps an established practice owner compare two months; our dental monthly owner-report guide covers the supporting collections, receivables, and lab schedules.

Check the report header before the revenue line

Confirm the practice entity, locations included, month-end cutoff, and cash or accrual basis. Compare completed periods using the same account groupings. Note differences in working days, provider availability, or payroll dates so the discussion has operating context.

IRS Publication 538 explains that cash accounting generally reports income when received and expenses when paid, while accrual accounting generally reports income when earned and expenses when incurred. Tax rules include exceptions. Ask the accountant to explain the basis used in this management report and any differences from tax reporting; changing a report setting does not establish permission to change a tax accounting method.

On a cash-basis report, a delayed insurer payment or a batch of older lab bills paid this month can affect the comparison. On an accrual report, check the revenue and expense cutoffs. Avoid comparing one month's collections with another month's production and calling the difference growth.

Read revenue and compensation with consistent definitions

Ask whether the revenue line represents recorded cash receipts or recognized service revenue under the practice's policy, how refunds and adjustments appear, and how it ties to supporting records. The practice-management gross-production total is a separate measure; do not substitute it for book revenue without a reconciliation.

Identify dentist compensation, hygiene and other staff costs, and related payroll taxes and benefits. Define which group contains each cost. Where owner compensation is recorded as payroll expense, keep it identifiable. Owner payments require classification under the actual entity and arrangement; ask the accountant which are compensation expense and which are distributions or draws. A report excluding owner clinical compensation cannot be compared directly with one including it.

For associates, compare the recorded expense with the actual agreement and supporting calculation. Check the agreed production or collections basis, lab deductions if applicable, bonuses, and period covered. A compensation percentage alone does not establish that payroll was calculated correctly.

Trace material expense changes before judging efficiency

Keep outside-lab fees, clinical supplies, occupancy, administration, depreciation, and interest visible in consistent groups. Your chart of accounts may place these differently; agree on the presentation before interpreting subtotals. Use the profit-margin guide for the distinction between gross, operating, and net measures.

For a lab increase, request the invoice and credit summary and check timing and procedure mix. For payroll, check staffing, hours, bonuses, and posting dates. The IRS recordkeeping guidance identifies invoices, receipts, and payment evidence as supporting records. A larger line is a question to investigate, not proof of overspending.

Keep the original report beside a short explanation of each material change. If an accountant reclassifies a prior-month expense, regenerate both comparison columns and retain the correction note. Do not explain a lower staff line as better efficiency when the same dollars moved into provider compensation. Ask which comparisons remain provisional and which supporting records are still missing. That distinction helps the owner choose a follow-up action without treating preliminary numbers as a finished conclusion.

Illustration: revenue rises but profit stays flat

All figures below are invented, not dental industry benchmarks or a client result. Assume the same single-location practice, complete accrual-basis books, and consistent classifications for both months. Provider compensation includes recorded owner and associate compensation expense; related employment costs are assigned consistently within the compensation groups. There are no other income or expense items, and income taxes are excluded. The final line is therefore book profit before income taxes.

P&L line	Month A	Month B	Change
Recognized revenue	$120,000	$132,000	+$12,000
Provider compensation	$28,000	$33,000	+$5,000
Hygiene and other staff costs	$30,000	$32,000	+$2,000
Outside-lab fees	$8,000	$11,000	+$3,000
Clinical supplies	$6,000	$7,000	+$1,000
Occupancy	$10,000	$10,000	$0
Other operating costs	$12,000	$13,000	+$1,000
Depreciation	$4,000	$4,000	$0
Interest expense	$1,000	$1,000	$0
Total expenses	$99,000	$111,000	+$12,000
Book profit before income taxes	$21,000	$21,000	$0

The profit bridge is $21,000 starting profit + $12,000 revenue growth − $5,000 provider compensation − $2,000 staff costs − $3,000 lab fees − $1,000 supplies − $1,000 other costs = $21,000. Revenue increased 10%, and the additional expenses absorbed the entire increase. The table identifies where to ask questions; it does not establish the causes.

Using the same before-tax profit definition, Month A's margin is $21,000 ÷ $120,000 = 17.5%. Month B's is $21,000 ÷ $132,000 = approximately 15.9%, a decline of about 1.6 percentage points. Profit dollars held steady while the share retained from revenue fell. Neither percentage is a recommended target.

Finish with evidence and a cash decision

Assign follow-up for the $5,000 provider-compensation increase and $3,000 lab increase. Verify the contract calculation and matched invoice schedule, then document whether the changes reflect volume, mix, timing, rates, or an error. Compare a longer consistent trend before changing staffing or pricing.

The SEC guide distinguishes profit from cash generation: depreciation, asset purchases, and loan repayments affect that comparison. Review bank cash, receivables, unpaid bills, debt payments, and planned owner payments before treating $21,000 as available to spend. TaxBowl's dental practice accounting service can connect reconciled bookkeeping with a clear monthly P&L review and supported owner decisions.

Video: understanding a comparative income statement

The Accounting Stuff video explains the general income-statement structure and comparisons between periods. Its direct-cost simplification is not a universal rule for dental cost classification; use the practice's consistent accounting policy for the review above.

Compare hygiene department contribution, shared overhead allocation, and the costs of filling capacity or adding a session.

To explain provider payroll, reconcile associate dentist compensation earned, paid and still payable using the written agreement.