Skip to content
Back to Blog
Reporting calendar    Apr 11, 2025

What Is a Profit & Loss Statement — And How to Use It to Grow Your Business

Learn how to use a Profit & Loss Statement to evaluate profitability, cut costs, and make smarter business decisions for sustainable growth.

If you're running a business, you likely know money is coming in… and going out. But do you know where it’s going—or how much of it is turning into actual profit?
That’s where your Profit & Loss (P&L) Statement comes in.
 
Also called an Income Statement, this financial report gives you a clear view of your business’s financial performance over a specific period—monthly, quarterly, or annually. And when used properly, it becomes more than just a report. It becomes a roadmap.
 

Why Your P&L Matters

Your P&L isn’t just for your accountant at tax time. It answers key questions every business owner should ask:
  • Are we making money?
  • Are our costs under control?
  • Are we growing sustainably?
When reviewed consistently, it provides valuable insights into:
  • Profitability
  • Spending patterns
  • Tax planning
  • Financial health

What’s on a P&L?

Here’s how your P&L funnels your income down to your true bottom line:
  1. Revenue (Top Line): Total income from sales or services
  2. Cost of Goods Sold (COGS): Direct costs to deliver your product or service
  3. Gross Profit: Revenue minus COGS
  4. Operating Expenses: Rent, salaries, software, marketing, insurance, etc.
  5. Net Profit (Bottom Line): What’s left after all expenses, taxes, and interest
 
Flow: Revenue → COGS → Gross Profit → Expenses → Net Profit

How to Read a P&L (Step-by-Step)

1. Pick the Right Timeframe
  • Monthly = Manage cash flow
  • Quarterly = Spot trends
  • Annually = Reflect on long-term performance
2. Review Revenue
  • Is it growing?
  • Are there seasonal dips?
  • Are you dependent on one product or client?
3. Analyze COGS
  • Are your margins shrinking?
  • Are your suppliers getting more expensive?
4. Examine Operating Expenses
  • Are you overspending on software, rent, or ads?
  • Are expenses increasing faster than income?
5. Evaluate Net Profit
  • Are you consistently profitable?
  • Do you have enough left over for emergencies, tax payments, or reinvestment?

P&L Health Checklist

  • Revenue is increasing over time
  • Gross profit margin is steady
  • Operating expenses align with business goals
  • Net profit supports future growth

How to Use Your P&L to Grow Your Business

✅ Evaluate Profitability
Know if you’re truly making money—or just staying busy.
✅ Cut Costs That Don’t Convert
Reduce unnecessary spending, especially in overhead and variable costs.
✅ Track Progress
Use historical data to make smarter decisions.
✅ Prepare for Tax Season
Understand your tax obligations based on real profit—not guesswork.
✅ Support Better Decisions
Hire with confidence. Adjust pricing. Expansion plan.

Real Example

One client came to us confused about flat sales despite increasing ad spend. Their P&L highlighted rising marketing costs with no revenue growth. We helped them shift ad dollars to better-performing campaigns—and their revenue jumped 20% in one quarter.
 

What Your P&L Helps You Decide

  • Budgeting: Set monthly spend targets
  • Pricing: Adjust if margins are too thin
  • Scaling: Know when you can afford to hire or seek financing
Ask Yourself:
  • What % of revenue is going to COGS or labor?
  • Are depreciation and amortization manageable?
  • Is profit aligned with your long-term goals?

Common Mistakes to Avoid

  • Ignoring your numbers
  • Misclassifying expenses
  • Focusing on one bad (or good) month
  • Only reviewing your P&L at year-end

When to Bring in a Pro

You should talk to a CPA or accountant if:
  • You’re not sure how to read your P&L
  • You’re planning to grow, restructure, or raise funds
  • You want a better strategy and fewer surprises
Benefits:
Accurate reporting. Strategic insights. Total peace of mind.

Final Thoughts: From Confusion to Confidence

Your P&L tells the story of your business. If you learn to read it—and act on it—you’ll make better decisions, grow faster, and reduce financial stress.

Next Steps

  • Review your P&L every month (using the cash or accrual method, depending on your business)
  • Book a consult with a CPA to uncover hidden insights and align your numbers with your goals
Need help interpreting your P&L?
MESA CPA offers expert support to help Canadian businesses make sense of their numbers—and use them to grow.

 

Client Success Partner at Mesa CPA

Business Image

 

 

Latest Articles

What Is a Holding Company — and When Should You Open One?

What Is a Holding Company — and When Should You Open One?

Discover the benefits of holding companies for asset protection, tax deferral, and investment growth, and learn when it makes sense for you...

The Most Common Bookkeeping Mistakes

The Most Common Bookkeeping Mistakes

Learn the most common bookkeeping mistakes and how to fix them to avoid audit triggers, misclassified expenses, and missed tax deductions. ...

What Is a Profit & Loss Statement — And How to Use It to Grow Your Business

What Is a Profit & Loss Statement — And How to Use It to Grow Your Business

Learn how to use a Profit & Loss Statement to evaluate profitability, cut costs, and make smarter business decisions for sustainable growth...