Your Profit & Loss statement, also called your P&L, is one of the most important reports in your business.
But most contractors don’t really use it.
They glance at the top line.
They glance at the bottom line.
Then they move on.
That’s a mistake.
Your P&L is not just a tax document.
It’s a story.
It tells you:
- How much work you did
- What it cost you
- Where your money is going
- Whether you are truly profitable
If you learn how to read it the right way, you’ll start seeing problems early and opportunities you didn’t even know were there.
Let’s break it down…
The Basic Structure of a P&L
Every P&L has three main sections:
- Revenue (Sales)
- Cost of Goods Sold (Direct Job Costs)
- Operating Expenses (Overhead/Fixed Costs)
And at the bottom:
Net Profit
That’s what’s left after everything is paid.
Simple.
But powerful.
1. Revenue: The Top Line
This is the total dollar amount of work completed during the period.
If you’re using accrual accounting (which we talked about in this cash vs. accrual article), this reflects work performed, not just cash received.
Example:
An HVAC company completes $250,000 in installs and service work in a month.
Revenue = $250,000.
But revenue alone means nothing.
Busy does not equal profitable.
2. Cost of Goods Sold (COGS): The Job Costs
This is what it directly costs you to perform the work.
For a plumber, this might include:
- Field labor wages
- Payroll taxes on field labor
- Materials
- Subcontractors
- Equipment used on jobs
For a painter:
- Paint and supplies
- Jobsite labor
- Lift rentals
For a landscaper:
- Plants and materials
- Crew labor
- Equipment fuel tied to jobs
These are costs that rise and fall with jobs.
If you do more work, these costs increase.
If you do less work, they decrease.
Simple Example: Electrical Contractor
Revenue: $200,000
COGS:
- Field labor: $80,000
- Materials: $60,000
- Subcontractors: $10,000
Total COGS = $150,000
Gross Profit = $50,000
That $50,000 is what’s left to cover overhead and fixed costs (rent, utilities, etc).
This is called Gross Profit.
And this number is critical.
Gross Profit: The First Big Metric
Gross Profit = Revenue – Direct Job Costs.
Gross Profit tells you:
Are you pricing your jobs correctly?
If your gross profit margin is too low, no amount of marketing will fix your business.
You can’t grow your way out of bad pricing.
Tracking gross profit by job type is critical to your overall success. Try shooting for targeting gross profit percentages and adjust your pricing accordingly.
Hidden Opportunity #1: Low Gross Margin
Let’s say a plumbing company has:
Revenue: $300,000
COGS: $240,000
Gross Profit: $60,000 (20%)
20% might not be enough to support office staff, rent, trucks, insurance, and marketing.
If you don’t look closely, you might think:
“We’re doing $300k a month, we’re killing it!”
But the P&L says otherwise.
This contractor needs to:
- Raise prices
- Improve efficiency
- Reduce waste
- Train techs to upsell properly
The P&L exposes that problem.
3. Operating Expenses: The Overhead
Now we move below Gross Profit.
Operating expenses are the fixed costs to run the business, whether you do 1 job or 100 jobs.
Examples:
- Office staff salaries
- Rent
- Insurance
- Software
- Marketing
- Truck payments
- Utilities
- Owner salary
These are often called overhead.
They don’t directly produce revenue, but they support it.
Example: HVAC Company
Gross Profit: $100,000
Operating Expenses:
- Office staff: $30,000
- Marketing: $15,000
- Rent & utilities: $10,000
- Insurance: $5,000
- Software & misc: $5,000
Total Overhead: $65,000
Net Profit: $35,000
That’s what’s left.
That’s real profit.
Net Profit: The Scoreboard
Net Profit is what remains after everything.
This is the money that:
- Builds cash reserves
- Pays down debt
- Funds growth
- Creates wealth
If Net Profit is thin or negative, something must change.
And your P&L will show you where.
How to Read Your P&L Like a Pro
Don’t just look at dollars.
Look at percentages.
Ask:
- What is my Gross Profit %?
- What is my Overhead %?
- What is my Net Profit %?
Example:
Revenue: $400,000
Gross Profit: $160,000 (40%)
Overhead: $120,000 (30%)
Net Profit: $40,000 (10%)
Now you can compare month to month.
If Gross Profit drops from 40% to 32%, something changed:
- Pricing?
- Labor efficiency?
- Material costs?
- Discounting?
The percentage tells you faster than the dollar amount.
Hidden Opportunity #2: Marketing Efficiency
Let’s say a landscaping company increases marketing spend from $10,000 to $20,000 per month.
Revenue jumps from $300,000 to $380,000.
But Net Profit barely changes.
Why?
The P&L might show:
- More overtime
- Higher material waste
- Increased callbacks
Marketing worked.
Operations didn’t keep up.
Without the P&L, you might blame marketing.
But the real issue is job performance.
The Three Questions You Should Ask Monthly
- Did my Gross Profit % improve or decline?
- Did my Overhead grow faster than revenue?
- Is my Net Profit strong enough to support growth?
If you ask those three questions every month, you will operate differently than 90% of contractors.
Hidden Opportunity #3: Owner Pay Confusion
Many contractors mix personal spending and business spending.
The P&L helps separate that.
If you:
- Pull large draws
- Run personal expenses through the company
- Don’t track owner compensation clearly
You won’t know your true profitability.
Clean books create clear decisions.
What the P&L Means in the Field
Let’s bring this back to real life.
When you look at your P&L and see:
Low Gross Profit → That’s pricing or job efficiency.
High Overhead → That’s management or spending discipline.
Low Net Profit → That’s a system problem.
It’s not random.
It’s not luck.
It’s math.
And math can be fixed.
In the field:
Material Costs = Cost of Goods Sold (COGS)
Job Labor = Cost of Goods Sold (COGS)
Fuel to the Job = Cost of Goods Sold (COGS)
Ad Dollars to Get the Job = Cost of Goods Sold (COGS)
Truck Payments = Operating Cost
Rent / Utilities = Operating Cost
Software = Operating Cost
Back Office Payroll = Operating Cost
Tools / Equipment Trucks = Assets (Balance Sheet)
The Big Takeaway
Your P&L is not just numbers on a page.
It’s feedback.
It’s telling you:
- Are your crews productive?
- Are you charging enough?
- Is marketing paying off?
- Are you building a real business or just staying busy?
Need help understanding your numbers?
Shwego was built to help service contractors like you manage jobs, track job costs, and grow with confidence. Book a free demo to see how it works.
Until next time,
-Sam
