How to Read a Profit & Loss Report in QuickBooks (And What It’s Actually Telling You About Your Business)

If you’ve ever opened your Profit & Loss report in QuickBooks and thought, “I have no idea what I’m looking at,” you’re not alone.

The Profit & Loss (P&L) report is one of the most important tools in your business — but only if you understand what it’s telling you.

Today, I’m going to walk you through it in a way that actually makes sense.

First: What Revenue Really Means

Revenue is the money your business earns.

That part sounds simple — but here’s where many business owners miss something important:

You want to track revenue in a way that reflects your business model.

Not every business should track income the same way.

For example:

• Membership-based businesses should track membership income separately so they can see recurring revenue clearly.

• Medical practices (dental, therapy, chiropractic, veterinary) should track income in a way that reflects insurance reimbursements vs. private pay.

• Contractors (plumbing, electrical, HVAC) should separate service revenue from installation or project revenue.

• Realtors should track commissions in a way that makes sense for splits and brokerage fees.

• House flippers need to track revenue by property to evaluate true deal profitability.

QuickBooks should be set up to give you visibility into how your business actually earns money.

If your revenue categories are too generic, your reports won’t help you make decisions.

Next: What Expenses Mean

Expenses are the costs required to run your business.

But just like revenue, expenses should be organized intentionally.

They usually fall into two categories:

1. Cost of Goods Sold (COGS)

These are costs directly tied to delivering your service or product.

Examples:

• Materials for contractors

• Lab fees in a dental practice

• Inventory purchases for retail

• Direct labor on jobs

• Renovation costs for house flippers

These costs affect your gross profit.

2. Operating Expenses

These are overhead costs:

• Rent

• Software

• Insurance

• Marketing

• Office expenses

• Administrative payroll

These affect your net profit.

Understanding the difference matters.

Gross Profit vs. Net Profit (And Why It Matters)

This is where many business owners get confused.

They see “profit” and assume everything is fine — but which profit?

Gross Profit

Gross Profit = Revenue – Cost of Goods Sold

This tells you whether your pricing and delivery model work.

If gross profit is weak, the issue is usually:

• Underpricing

• Rising material costs

• Poor job tracking

• Insurance reimbursements not covering service costs

• Renovations going over budget

What Gross Profit Means by Industry

Contractors Gross margin tells you if your jobs are priced correctly. Strong revenue with shrinking margins is a red flag.

Medical Practices Lab costs and provider-related expenses impact margin. Declining insurance reimbursements without cost control can erode profitability quickly.

Membership Businesses Often have strong gross margins. But heavy discounts or churn can quietly reduce profitability.

Retail/Product-Based Businesses Inventory management directly impacts gross profit. Supplier cost increases must be monitored closely.

House Flippers Gross profit is essentially: Sale price – purchase price – renovation costs. If renovation budgets creep up, profits disappear fast.

If gross profit isn’t healthy, cutting overhead won’t fix the real issue.

Net Profit

Net Profit = What’s left after all expenses.

This includes:

• Overhead

• Marketing

• Administrative costs

• Insurance

• Software

• Everything

This is your true bottom line.

And important reminder:

Net profit does not equal cash in the bank.

Loan payments, owner draws, timing differences, and reinvestments all affect cash separately.

What Healthy Net Profit Looks Like by Industry

While every business is different, here are general expectations:

Service-Based Businesses (consultants, therapists) Often aim for 15–30% net profit once stable.

Medical Practices Margins vary depending on staffing levels. Watch payroll as a percentage of revenue.

Contractors Commonly 10–20% net margin. High revenue with low profit usually points to pricing or job costing issues.

Membership Businesses Can become very profitable once recurring revenue stabilizes. Watch marketing spend compared to lifetime customer value.

Realtors Income fluctuates significantly. Track brokerage splits and marketing costs carefully.

House Flippers Margins must justify capital risk, holding costs, and interest. Narrow spreads can wipe out gains quickly.

The goal isn’t to compare yourself to someone else.

The goal is to understand what’s healthy for your model — and watch trends over time.

What to Review on Your P&L Every Month

Each month, ask yourself:

1. Is revenue trending up, down, or flat?

2. Is gross margin stable?

3. Are expenses growing faster than revenue?

4. Did anything unusual happen this month?

Consistency matters more than perfection.

Red Flags to Watch For

• Revenue growing but profit shrinking

• Expenses increasing without intentional investment

• Large fluctuations you can’t explain

• Strong profit on paper but constant cash stress

Your numbers should tell a story. If they feel confusing or disconnected from reality, something needs attention.

3 Things to Check Every Month

If you do nothing else, check these:

1. Gross profit percentage

2. Net profit percentage

3. Your largest expense category

These three alone will give you clarity and confidence.

Your Profit & Loss report is not just for tax time.

It’s a decision-making tool.

When you understand it, you stop guessing. You stop hoping. And you start leading your business with confidence.

In the next post, we’ll break down the Balance Sheet — and why it matters just as much as your P&L.

If you’ve ever felt intimidated by your numbers, you’re not alone.

 But you absolutely deserve to understand them.