How Do I Read This P&L?

Think Like a CFO

Case 3 · Earnings Quality

Most business owners know how to find revenue and net income on a P&L. That is not the same as knowing how to read one.

Learning how to read a profit and loss statement starts with refusing to stop at the bottom line. When I review an income statement, I am not starting with the question, “Did the company make money?” I am trying to answer a different set of questions:

• Where did the profit actually come from?
• Is the margin getting better or worse?
• What costs are changing as the company grows?
• Is the reported profit sustainable?
• And does the accounting profit translate into enough cash to support the business?

A P&L is not just a report card. Read correctly, it tells you how the business actually works.

Here is the sequence I use.

The Illustrative $5 Million P&L

The simplified example below matches the Case 3 cover. It is a composite created for education and does not represent a client or disclose confidential information.

Illustrative P&L	Amount	% of revenue
Revenue	$5,000,000	100.0%
Cost of goods sold	($3,100,000)	(62.0%)
Gross profit	$1,900,000	38.0%
Indirect payroll	($800,000)	(16.0%)
Other operating expenses	($600,000)	(12.0%)
EBITDA	$500,000	10.0%
Interest expense	($100,000)	(2.0%)
Depreciation and amortization	($75,000)	(1.5%)
Pre-tax income	$325,000	6.5%
Income taxes	($85,000)	(1.7%)
Net income	$240,000	4.8%

Illustrative example only. Direct field labor and materials are included in cost of goods sold; the separate payroll line represents management, administrative and other indirect payroll.

What does revenue actually tell you?

Revenue tells you how much the company sold during a period. It does not tell you whether those sales were profitable, repeatable or even collected in cash.

If revenue increased from $4 million to $5 million, my next question is simple: why? Did the company:

• raise prices?
• sell more units?
• add customers?
• complete one unusually large project?
• acquire another company?
• discount aggressively to generate volume?
• shift toward a lower-margin product or service?

Those situations can produce the same revenue growth and completely different financial outcomes.

Revenue growth is only useful when you understand the source

I want to separate growth into price, volume, mix and one-time effects whenever possible.

A company that grows because customers are willing to pay 8% more for the same service is different from a company that grows 8% because it added crews, trucks and overhead to complete more work.

Both grew. One may have become substantially more valuable. The other may simply have become busier.

What does gross profit tell a business owner?

Gross profit tells you what remains after the direct costs required to deliver the company’s product or service.

If a company generates $5 million of revenue and $1.9 million of gross profit, its gross margin is 38%. That 38% usually tells me more about the health of the operating business than the $5 million revenue number by itself.

Why gross margin matters

Gross margin helps expose changes in:

• pricing
• labor efficiency
• material cost
• purchasing
• sales mix
• job execution
• discounting
• subcontractor usage
• productivity

A business can grow revenue while simultaneously damaging its economics.

For example: revenue rises from $4 million to $5 million, but gross margin falls from 42% to 36%. The company added $1 million of sales, but each new dollar may be producing less money to pay the company’s overhead.

That deserves investigation before anyone celebrates the growth.

How should I look at payroll and labor?

Payroll is one of the largest expenses in many small and midsize businesses. It is also one of the easiest lines to misread.

Some companies include direct labor in cost of goods sold. Others put nearly all payroll below gross profit. Neither presentation automatically tells me whether labor is too high.

What I want to know is what economic output that labor is producing.

If payroll increased by $300,000 because the company hired employees who generated $900,000 of additional gross profit, that may be an excellent investment. If payroll increased $300,000 while gross profit barely moved, I want to know why.

The better question is not “Is payroll up?” It is: is the added labor producing enough gross profit to justify its cost?

Depending on the company, I may look at:

• revenue per employee
• gross profit per employee
• revenue per technician
• billable utilization
• labor hours per job
• overtime
• crew efficiency
• management layers
• sales production per salesperson

Payroll should be evaluated against what those employees are supposed to produce.

How should I read operating expenses?

Operating expenses are the costs required to run the company that are not directly assigned to producing a specific sale. Typical examples include:

• office payroll
• rent
• insurance
• software
• professional fees
• advertising
• vehicles
• travel
• administrative costs

When I review operating expenses, I separate them mentally into three buckets.

Costs that should move with revenue

Some expenses naturally increase as the company grows. Marketing, commissions, credit-card fees and certain administrative costs may fall into this category.

Costs that should remain relatively fixed

Rent, certain management salaries and core software costs may stay relatively stable over a range of revenue. If these expenses rise every time sales rise, I want to understand why.

Costs that became permanent

This is where businesses sometimes get into trouble. During a strong year, the company hires another manager, upgrades office space, leases more vehicles and adds software. Revenue later slows. The new cost structure remains.

That is how a business can grow quickly and then discover that its break-even point moved much higher.

What does EBITDA tell a business owner?

EBITDA stands for earnings before interest, taxes, depreciation and amortization. It is a non-GAAP measure — the SEC’s staff guidance is specific about how public companies may present it — and it is commonly used as one measure of operating performance because it removes several items that can make comparisons between businesses more difficult.

But EBITDA is not cash. And it should not be treated as cash.

Suppose a company produces $500,000 of EBITDA on $5 million of revenue. That is a 10% EBITDA margin. Now I want to ask:

• Is 10% strong for this type of business?
• Is the margin improving?
• How much capital does the company require?
• How much debt does it carry?
• How much equipment must be replaced?
• How much working capital does growth consume?

A 10% EBITDA margin can be excellent in one industry and inadequate in another.

EBITDA measures operating earnings, not everything the owner ultimately keeps

A business can report strong EBITDA and still have weak cash flow because EBITDA ignores several real cash demands. That is why I never stop reading the P&L at EBITDA.

What does the P&L leave out below EBITDA?

Several economically important items usually sit below EBITDA or outside the P&L entirely.

Interest

Debt financing costs money. Two companies with identical EBITDA can leave their owners with very different cash flow if one carries significantly more debt.

Depreciation and amortization

These are noncash accounting expenses in the current period. But dismissing depreciation entirely can also be dangerous. If a company owns trucks, machinery, boats or specialized equipment, those assets eventually need to be replaced. The depreciation expense itself may not be cash, but the future equipment bill certainly will be.

Taxes

Income taxes ultimately affect what remains for owners, even though tax structure varies substantially by entity and owner.

Debt principal

Principal payments do not appear as an expense on the P&L. They still consume cash.

Capital expenditures

Buying a $90,000 truck does not normally create a $90,000 expense on today’s income statement. The business still had to produce or borrow $90,000 of cash to acquire it.

Working capital

Growth often requires additional accounts receivable, inventory or other working capital. That cash requirement also does not show up neatly in EBITDA.

This is why a profitable company can still feel cash-starved.

What is normalized EBITDA?

Reported EBITDA tells me what the accounting records show. Normalized EBITDA asks what the business would earn under ordinary, sustainable operating conditions.

That distinction matters when evaluating performance, planning or valuing a business. Potential normalization items might include:

• a truly one-time legal expense
• unusual repair costs
• above- or below-market owner compensation
• personal expenses running through the company
• temporary duplicate payroll
• nonrecurring consulting costs

But normalization should not become an excuse to remove every expense management dislikes.

A real add-back has to survive scrutiny

My standard is simple: would a reasonable buyer or future owner actually avoid this cost? If the answer is no, I probably would not add it back.

For example, removing the owner’s $200,000 salary only makes sense if the business does not need someone performing the owner’s work after the owner leaves. If replacing that owner requires hiring a $175,000 general manager, then most of that supposed add-back disappears.

That is the difference between reported earnings and transferable earnings. And it is exactly why the reported profit from a business can differ significantly from what a buyer is willing to value. This was the central issue in Case 2: the HVAC owner who believed his company was worth $10 million.

Adjustment	Impact	Why it matters
Reported EBITDA	$500,000	Starting point from the books
Owner personal expenses	+$50,000	Remove documented nonbusiness spending
One-time legal matter	+$40,000	Remove a nonrecurring operating charge
One-time insurance proceeds	-$60,000	Remove nonrecurring income embedded in operations
Market owner compensation	-$120,000	Add the cost of replacing underpaid owner labor
Under-market key payroll	-$70,000	Reflect the recurring cost required to retain the team
Normalized EBITDA	$340,000	Illustrative sustainable earnings after both positive and negative adjustments

In this illustration, the company reports $500,000 of EBITDA but normalizes to $340,000. The lesson is not that every add-back is wrong. The lesson is that earnings quality improves only when both favorable and unfavorable adjustments are treated consistently.

Why should I compare the P&L over time?

One month’s P&L rarely tells me enough. I want context. At minimum, I prefer to compare:

• current month vs. prior month
• current month vs. budget
• current month vs. same month last year
• year-to-date vs. prior-year year-to-date

Then I look at percentages, not only dollars.

Revenue may have increased $500,000. That sounds good. But if gross margin declined, payroll increased faster than gross profit and EBITDA margin fell, the business may actually be moving in the wrong direction.

Trends reveal what a single P&L hides

The question is not simply “What happened?” It is “What is changing?”

That is where the P&L becomes useful for decision-making.

The same P&L means different things in different businesses

How to read a profit and loss statement does not change by industry. The sequence stays the same. What you weigh most heavily is what changes.

How I read an HVAC or home-services P&L

For an HVAC, plumbing or other home-service company, I pay particular attention to the relationship between technicians, revenue and gross profit. I want to understand:

• service vs. installation revenue
• recurring maintenance revenue
• technician productivity
• direct labor
• equipment and material margins
• sales commissions
• marketing cost
• fleet expense

What can look good but be misleading? Strong revenue growth can hide poor installation margins, heavy customer-acquisition spending or inefficient labor. A business adding trucks and technicians faster than it adds profitable work may appear to be growing while its economics deteriorate.

The decision the P&L should help drive is not simply whether to grow. It is: where can the company add another dollar of revenue while preserving or improving margin?

How I read a contractor or construction P&L

A contractor’s income statement needs to be read together with project and working-capital information. I look closely at:

• job gross margin
• direct labor
• subcontractors
• materials
• change orders
• overhead absorption
• project mix

But a profitable P&L does not guarantee a healthy contractor. Retainage, slow collections, underbilling and job timing can create significant cash pressure.

What can look good but be misleading? A contractor can report strong revenue and profit while simultaneously borrowing more money every month. That is why I would not make a major decision from the P&L alone. I would connect it to WIP, A/R aging and a cash forecast.

How I read an engineering firm’s P&L

For an engineering or professional-services firm, people are usually the economic engine. I focus on:

• labor cost
• billable utilization
• billing rates
• project margin
• backlog
• overhead
• revenue per professional

Revenue growth is less impressive if the company has to add employees at the same or faster rate.

What can look good but be misleading? A large backlog can make the future look secure. But if the work is underpriced, requires unavailable staff or contains weak project margins, backlog can create more operational stress than value.

The P&L helps tell me whether the firm’s people are converting their time into adequate gross profit.

How I read a pest-control or route-based business P&L

Recurring revenue is particularly important in route businesses. I look at:

• recurring service revenue
• retention
• route density
• technician labor
• chemical and material cost
• revenue per route
• customer-acquisition spending

What can look good but be misleading? Revenue labeled “recurring” is not automatically valuable. If customers cancel frequently and the company must spend heavily to replace them, the economic quality of that recurring revenue is much weaker.

The P&L should eventually be connected to retention and cohort information so you can determine whether growth is actually compounding.

How I read a marine or blue-economy business P&L

Marine businesses can have substantial differences between peak and slow periods. I pay particular attention to:

• monthly seasonality
• service vs. product revenue
• labor
• equipment utilization
• inventory
• fuel or material cost
• maintenance expense
• fixed overhead

What can look good but be misleading? A very profitable peak month can create the impression that the company has more sustainable earning power than it really does. For seasonal businesses, I want a full-year view.

The important question is whether profits during strong months can fund payroll, debt, inventory and overhead during weaker months.

How I read an aerospace business P&L

Aerospace and specialized manufacturing businesses often require more attention to production economics than the headline revenue number suggests. I would want to understand:

• contract or program mix
• direct labor
• material cost
• scrap and rework
• overhead absorption
• engineering labor
• supplier costs
• program margins

What can look good but be misleading? A growing program can increase revenue while consuming significant labor, inventory and working capital. Aerospace businesses can also have very different economics across contracts, so consolidated gross margin may hide individual programs that are creating or destroying value.

The P&L should help management identify which programs deserve additional capacity and which need repricing, operational improvement or reconsideration.

What should an owner ask after reading the P&L?

If I owned the company, I would want to leave the review with answers to a few questions:

1. Why did revenue change?
2. Why did gross margin change?
3. Is labor producing enough gross profit?
4. Which operating expenses are growing faster than the business?
5. Is EBITDA margin improving or deteriorating?
6. What cash requirements are missing from EBITDA?
7. Are any adjustments making reported earnings look better than sustainable earnings?
8. What trend requires a decision now?

If the monthly financial review ends with someone simply saying “Revenue was up and we made money,” you probably have accounting information. You do not yet have CFO-level reporting.

Frequently asked questions about reading a P&L

Is a P&L the same as an income statement?

Yes. Profit and loss statement, P&L and income statement all refer to the same report. The name changes; the structure does not.

How often should an owner review the P&L?

At least monthly, after the books are properly closed. Fast-moving businesses may also run a weekly flash report on revenue, labor and gross margin, but a flash report is not a substitute for a disciplined monthly close.

Should I read a cash-basis or an accrual-basis P&L?

Accrual generally gives a better view of operating performance, because revenue and the direct costs that produced it land in the same period. Many small businesses still file taxes on the cash method; the IRS explains the difference in Publication 538.

Is EBITDA the same as profit?

No. EBITDA is one measure of operating earnings. It ignores interest, taxes, debt principal, capital expenditures and working capital, and every one of those is a real cash demand on the business.

What does normalized EBITDA mean?

Normalized EBITDA adjusts reported earnings toward what the business would earn under ordinary, sustainable operating conditions. A credible adjustment has to survive one test: would a reasonable buyer or future owner actually avoid this cost? Case 2 works through what happens when that test is skipped.

Why can a profitable company run out of cash?

Because profit is not cash. Customers may pay slowly, growth absorbs cash into receivables and inventory, and debt principal and equipment purchases consume cash without ever appearing as an expense on the P&L.

What gross margin should my business have?

There is no universal target. The useful benchmark is your own trend and your own model. A margin that is stable or improving as the company grows tells you more than any published industry average.

What should I review alongside the P&L?

At minimum the balance sheet and a cash forecast. Depending on the business, add A/R aging, WIP, backlog or retention data. The P&L alone should not drive a major decision.

The CFO takeaway

I do not read a P&L from top to bottom just to reach net income. I read it as a chain:

Every line should help explain the line below it. And every variance should eventually lead to an operating question.

Knowing how to read a profit and loss statement is not about memorizing line items. It is what turns an income statement from a historical accounting report into a management tool.

Related Think Like a CFO Cases

• Case 1: Would You Buy This HVAC Company for $4.2 Million?
• Case 2: Would You Take $7M for an HVAC Business You Think Is Worth $10M?
• Browse the full Think Like a CFO series
• Case 4: When reported earnings stop meaning what they say