How to Do Bookkeeping for a
Small Business in Canada

What is bookkeeping and why does it matter for Canadian small businesses?

Bookkeeping is the process of recording all financial transactions your business makes — every dollar of income earned and every expense paid. For a Canadian small business, accurate bookkeeping is not just good practice; it's a legal requirement. The CRA requires you to keep business records for at least six years from the end of the last tax year to which they relate.

Beyond compliance, good bookkeeping tells you whether your business is profitable, helps you plan for cash flow gaps, and makes tax time far less stressful.

Step 1: Separate your business and personal finances

The first — and most important — step is opening a dedicated business bank account. Mixing personal and business transactions is the most common bookkeeping mistake Canadian small business owners make, and untangling them at year-end is painful. Even if you're a sole proprietor, keep the accounts separate.

Step 2: Track every income transaction

Record every payment you receive. This includes client payments for services or products, government grants, and any other business income. For each transaction, note the date, amount, the client or payer, and what the payment was for.

The best way to do this consistently is to issue a numbered invoice for every sale and record the payment against it. Bookkeeping software like MapleBooks makes this automatic — create an invoice, mark it paid, and the income is recorded.

Step 3: Record every business expense

Every business purchase is a potential tax deduction. Common deductible expenses for Canadian small businesses include:

• Office supplies and equipment
• Software subscriptions used for work
• Professional development and courses
• Marketing and advertising costs
• Vehicle expenses (business-use portion)
• Home office expenses (business-use portion)
• Professional fees (accountant, lawyer)
• Bank charges and interest

Keep receipts for every expense. Canada Revenue Agency may ask for them. Organise expenses by category as you go — it's much easier than doing it at year-end.

Step 4: Understand GST and HST

If your business revenue exceeds $30,000 in any four consecutive calendar quarters, you must register for a GST/HST number with the CRA. Once registered, you charge GST or HST on your taxable sales and remit the net amount (what you collected minus input tax credits for the GST/HST you paid on business purchases) to the CRA — usually quarterly.

Keeping accurate GST/HST records is critical. Bookkeeping software that tracks tax on every invoice and purchase automatically (like MapleBooks) makes remittance straightforward.

Step 5: Reconcile regularly

Bank reconciliation means checking that your bookkeeping records match your bank statements. Do this monthly, not annually. It catches errors, missed transactions, and potential fraud early — and makes your year-end close much easier.

Step 6: Generate reports for tax filing

At year-end, you need a Profit & Loss (Income Statement) to report your business income on your T1 return (for sole proprietors) or T2 corporate return. Your bookkeeping software should generate this with a few clicks. You'll also need a General Ledger for your accountant and a GST/HST summary for your remittance.

The easiest way to do your bookkeeping in Canada

The steps above are manageable with spreadsheets, but they become much faster and more reliable with dedicated bookkeeping software. MapleBooks automates the repetitive parts — tax calculation, invoice tracking, expense categorisation, and report generation — so you spend less time on bookkeeping and more time running your business.