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Contractor Bookkeeping Tips: Bookkeeping Essentials for Canadian Contractors

  • Writer: Katarina Bednaricova
    Katarina Bednaricova
  • Feb 16
  • 5 min read

If you’re running a contracting business in Ontario, especially around Oakville, you already know how busy things can get. Between managing projects, dealing with clients, and keeping your crew on track, the last thing you want to worry about is your books. But here’s the truth: good bookkeeping is the backbone of a successful contracting business. Without it, you’re flying blind when it comes to your finances.


I’ve been there, and I get it. That’s why I want to share some practical, easy-to-follow contractor bookkeeping tips that will help you keep your financial house in order without losing your mind. Let’s dive in!


Why Contractor Bookkeeping Tips Matter More Than You Think


Bookkeeping might sound like a boring chore, but it’s actually your best friend when it comes to running a smooth operation. Think of it as the GPS for your business journey. Without it, you might take wrong turns, miss important stops, or run out of gas unexpectedly.


For contractors, bookkeeping is a bit different than for other businesses. You’re juggling multiple projects, tracking materials, labor costs, and sometimes dealing with subcontractors. Plus, there are tax rules specific to construction and contracting in Canada that you need to keep in mind.


Here’s why you should care about these tips:


  • Stay on top of cash flow: Knowing exactly where your money is coming from and going to helps you avoid nasty surprises.

  • Make tax time less painful: Accurate records mean fewer headaches and less chance of an audit.

  • Plan for growth: When you understand your finances, you can make smarter decisions about hiring, investing, and expanding.

  • Build trust with clients and lenders: Clear financials show you’re professional and reliable.


So, if you want to keep your business healthy and growing, these contractor bookkeeping tips are your new best friends.


Essential Contractor Bookkeeping Tips You Can Start Today


Let’s get practical. Here are some contractor bookkeeping tips that you can implement right now to make your life easier and your business stronger.


1. Separate Your Business and Personal Finances


This one is a classic but still gets overlooked. Mixing your personal and business accounts is like trying to drive two cars at once - it just doesn’t work. Open a dedicated business bank account and credit card. This makes tracking expenses and income much simpler and cleaner.


2. Track Every Expense, No Matter How Small


That coffee you bought on the way to a job site? The nails you grabbed at the hardware store? They all add up. Use a simple app or spreadsheet to record every expense. Trust me, it’s easier to do it daily than to try and remember everything at the end of the month.


3. Keep Receipts Organized


Whether you prefer paper or digital, keep your receipts in one place. I recommend scanning or photographing them and storing them in a cloud folder. This way, you won’t lose anything, and you’ll have proof if the CRA ever asks.


4. Use Job Costing to Track Profitability


Not all projects are created equal. Job costing means tracking the income and expenses for each project separately. This helps you see which jobs are making money and which ones might be costing you more than you think.


5. Set Aside Money for Taxes Regularly


Taxes can sneak up on you if you’re not careful. A good rule of thumb is to set aside about 25-30% of your income for taxes. Put this money in a separate savings account so you’re not tempted to spend it.


6. Use Accounting Software Tailored for Contractors


There are plenty of software options out there, but some are better suited for contractors. Look for features like job costing, invoicing, and expense tracking. This will save you time and reduce errors.


7. Reconcile Your Bank Accounts Monthly


Reconciliation means matching your bank statements with your bookkeeping records. Doing this monthly helps catch mistakes early and keeps your books accurate.


8. Don’t Forget About Payroll and Subcontractors


If you have employees or subcontractors, keep detailed records of payments, contracts, and tax deductions. This will make payroll easier and keep you compliant with Canadian tax laws.


Eye-level view of a contractor's desk with organized receipts and a laptop
Organized contractor bookkeeping setup

How to do bookkeeping for a construction business?


Now, let’s get into the nitty-gritty of how to do bookkeeping for a construction business. It’s a bit more complex than your average small business, but with the right approach, it’s totally manageable.


Step 1: Set Up Your Chart of Accounts


Your chart of accounts is like the filing system for your finances. It categorizes all your income and expenses. For construction, you’ll want categories like:


  • Materials

  • Labor

  • Equipment rental

  • Subcontractor fees

  • Permits and licenses

  • Insurance

  • Vehicle expenses


Having these categories set up correctly from the start makes tracking and reporting much easier.


Step 2: Track Income by Project


Every project should have its own income account or job code. This way, you can see exactly how much money each job brings in.


Step 3: Record Expenses Promptly


Don’t wait until the end of the month to enter expenses. Record them as they happen, and assign them to the correct project and category.


Step 4: Monitor Accounts Receivable and Payable


Keep a close eye on who owes you money and who you owe. Follow up on unpaid invoices promptly to keep cash flowing.


Step 5: Use Progress Billing


For longer projects, progress billing lets you invoice clients in stages. This helps with cash flow and keeps clients engaged.


Step 6: Prepare Financial Statements Regularly


Monthly financial statements like profit and loss, balance sheet, and cash flow statements give you a clear picture of your business health.


Step 7: Work with a Bookkeeping Partner


If this sounds overwhelming, you’re not alone. Many contractors partner with bookkeeping experts who understand the construction industry. They can help keep your books accurate and stress-free.


Close-up view of a construction site ledger and calculator on a wooden table
Construction business bookkeeping tools

Common Bookkeeping Mistakes to Avoid


Even with the best intentions, mistakes happen. Here are some common pitfalls and how to avoid them:


  • Not keeping receipts: Without proof, you can’t claim expenses.

  • Mixing personal and business expenses: This complicates taxes and can cause legal issues.

  • Ignoring small expenses: They add up and affect your bottom line.

  • Failing to track subcontractor payments: This can lead to tax penalties.

  • Not reconciling accounts regularly: Errors can go unnoticed and cause bigger problems later.

  • Delaying bookkeeping tasks: The longer you wait, the harder it gets.


Avoiding these mistakes will save you time, money, and headaches.


Why Partnering with a Local Bookkeeping Service Makes Sense


If you’re like me, you’d rather spend your time on the job site than buried in spreadsheets. That’s where a local bookkeeping partner comes in handy. Someone who knows the ins and outs of Ontario’s tax rules and the unique challenges contractors face can be a game-changer.


A good bookkeeping partner will:


  • Keep your books accurate and up to date

  • Help you plan for taxes and cash flow

  • Provide insights to grow your business

  • Save you time and reduce stress


If you want to focus on what you do best and leave the numbers to the pros, consider teaming up with a trusted bookkeeping service in Oakville.


If you want to learn more about bookkeeping for contractors, check out resources tailored specifically for your industry.


Taking Control of Your Contractor Finances


Bookkeeping doesn’t have to be a dreaded task. With the right approach and a few smart habits, you can keep your finances in check and your business thriving. Remember, it’s not about being perfect; it’s about being consistent.


Start small, stay organized, and don’t hesitate to ask for help when you need it. Your future self (and your accountant) will thank you.


Here’s to stress-free bookkeeping and a successful contracting business in Ontario!



If you found these tips helpful, feel free to share them with your fellow contractors. And remember, good bookkeeping is the foundation of every great business.

 
 
 

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