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ATB Entrepreneur & Small BusinessMar 10, 2025 3:11:26 PM3 min read

Smart tax planning for small business owners

At this time of year, small business owners are preparing for tax season. Your approach to tax planning varies significantly based on whether you operate as a sole proprietor or an incorporated business. This article outlines strategies for both structures to assist you in navigating tax season effectively.

Beginning in spring 2025, the Canada Revenue Agency will make online mail the default for most business communications via the My Business Account. View other changes here.

Tax planning for sole proprietors

As a sole proprietor, your business income is reported on your personal tax return (T1), and all business expenses directly reduce your personal taxable income. Here's how to maximize your tax efficiency:

Key deductions for sole proprietors

The following are the primary sources of deductions for sole proprietors:

Your home–calculate the percentage of your home used for business and apply it to:

  • Mortgage interest or rent.
  • Utilities and internet.
  • Property taxes.
  • Home maintenance related to your workspace.

Vehicle expenses can also provide substantial deductions:

  • Track your mileage for business use.
  • Document fuel costs, maintenance, and insurance.
  • Keep receipts for parking and tolls.
  • Calculate the business-use percentage of your vehicle.

Additional deductible expenses include:

  • Professional fees (accountant, lawyer, consultants).
  • Marketing and advertising costs.
  • Business insurance premiums.
  • Office supplies and equipment.
  • Business-related travel and accommodations.
  • Subcontractor payments.

Record-keeping for sole proprietors

Since you're personally responsible for your business taxes:

  • Maintain a separate business bank account.
  • Keep and document all receipts for business expenses.
  • Use accounting software to track income and expenses.
  • Consider making quarterly tax installments.
  • Document all subcontractor payments carefully.

Tax planning for incorporated businesses

Incorporated businesses file a separate corporate tax return (T2), and the tax strategy differs significantly from sole proprietorships. Here's what incorporated business owners need to know:

Corporate tax deductions

Your corporation can claim:

  • Employee salaries (including your own).
  • Employee benefits and insurance premiums.
  • Commercial rent and utilities.
  • Capital assets through depreciation (CCA).
  • Business vehicle expenses (if company-owned).
  • Professional fees.
  • Marketing and advertising.
  • Equipment and machinery.

The Canada Revenue Agency (CRA) offers Small Business Deduction (SBD) to Canadian Controlled Private Corporations (CCPC) on the first $500,000 in active business income. Under the deduction, CCPC’s pay a preferential tax rate of 9%.

Strategic considerations for incorporated businesses

When managing corporate finances, several key tax rules impact your bottom line. You'll need to strategically choose between salary and dividends for personal compensation while remembering that business meals and entertainment are only 50% deductible. Capital assets must be depreciated over time, but the benefit of lower corporate tax rates on the first $500,000 of active business income can yield significant savings.

Record-keeping for corporations

Incorporated businesses face stricter recording requirements. They must:

  • Maintain detailed financial statements.
  • Keep comprehensive payroll records.
  • Track shareholder loans and withdrawals.
  • Retain corporate tax records for at least six years.
  • Document all capital assets and inventory.

 

Personal tax considerations for corporate business owners

As a corporate business owner, you need to manage both corporate and personal taxes since you effectively have two separate tax entities:

Income structure planning

Withdrawing money from your corporation requires careful consideration of various tax implications. While salary provides immediate personal income and creates contribution room in your Registered Retirement Savings Plan (RRSP), dividends are taxed at a lower rate but don't generate RRSP room. Most business owners find that a strategic mix of salary and dividends provides optimal tax efficiency. Additionally, consider spreading larger withdrawals across different tax years to avoid pushing yourself into higher tax brackets.

Personal tax deductions

  • Investment expenses related to your corporate shares.
  • Interest on money borrowed to invest in your corporation.
  • Home office expenses if you perform corporate work from home.
  • Professional fees related to personal tax planning.
  • Moving expenses if relocating your business.

Retirement planning

  • Optimize RRSP contributions based on earned income (salary).
  • Consider an Individual Pension Plan (IPP) for higher retirement savings.
  • Evaluate Tax-Free Savings Account (TFSA) contributions for flexibility.
  • Plan corporate investment strategies to support retirement.

Family tax planning

  • There may be income-splitting opportunities through family salaries.
  • Consider paying dividends to adult family members who are shareholders.
  • Plan inheritance and succession strategies for tax efficiency.
  • Structure ownership of family assets for optimal tax treatment.

Remember that both business structures have unique advantages and challenges regarding taxes. The key is understanding which deductions and credits are relevant to your situation and keeping accurate records to support your claims. 

By following these structure-specific guidelines and keeping thorough records throughout the year, you can confidently approach tax season and maximize your tax efficiency, no matter your business structure.

It’s important to always consult a tax professional to ensure you're maximizing available tax benefits while remaining compliant with CRA requirements.

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