5 Bookkeeping Mistakes That Cost Small Businesses Thousands

Mistake #1: Mixing Personal and Business Expenses

This is the single most common mistake we see at Fusion Financial. When personal expenses flow through your business accounts, it creates a tangled mess at year-end, inflates your deductions risk, and can trigger a CRA audit.

Solution: Maintain completely separate bank accounts and credit cards for your business.

Mistake #2: Ignoring Receipts

The CRA requires supporting documentation for every business expense. "I'll remember what that charge was for" is not a bookkeeping strategy. Missing receipts mean lost deductions and potential penalties during an audit.

Mistake #3: DIY Payroll Without Expertise

Payroll in Ontario involves CPP contributions, EI premiums, income tax withholding, and remittance deadlines. Getting any of these wrong results in penalties, interest charges, and unhappy employees.

Mistake #4: Skipping Monthly Reconciliations

As we covered in our bank reconciliation guide, skipping this step allows errors to compound unchecked for months.

Mistake #5: Waiting Until Year-End

Cramming 12 months of bookkeeping into a few weeks guarantees errors, missed deductions, and unnecessary stress. Monthly bookkeeping spreads the workload evenly and keeps your records perpetually clean.

Don't let these mistakes drain your profits. Contact Fusion Financial to get your books on track.