Table of contents
TechNextPicks Editorial
Canada Edition
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Issue: Feb 2026
T2125
Self-employed
Expenses
Net income
T2125 Guide Canada (2026): Step-by-Step + Real Examples for Self-Employed
Last updated: February 14, 2026
Learn how to complete the CRA T2125 form - report income, claim expenses, and correctly calculate net business income. General tax information only, not tax advice.
Quick Summary (Read This First)
If you are self-employed in Canada, the T2125 - Statement of Business or Professional Activities is one of the most important tax forms you will complete.
This guide explains
- What T2125 is
- Who must file it
- How to complete each major section
- What expenses you can typically report
- Real examples
- Common mistakes to avoid
Quick summary
- T2125 reports your business or professional income and expenses.
- It calculates your net business income.
- That net income flows into your personal T1 tax return.
- Self-employed taxpayers can file later than most individuals, but payment may still be due earlier.
- You must keep proper records and receipts to support your claims.
If you want a broader overview first, see our Self-Employed Tax Guide Canada .
General information only. This is not tax advice.
T2125 Section Finder
Answer a few questions to see the sections that likely apply. General info only.
Step 1: Work type
Step 2: Expenses
Step 3: Sales tax
Step 1
Work type
Choose the activity that best matches your work.
Recommended sections
Checklist
- Income records and invoices
- Receipts for business expenses
- Bank and credit card statements
General info only. This tool is not tax advice.
What is the T2125 form?
The T2125 is the CRA form used to report business income, professional income, and related business expenses.
The form calculates: Gross income - Total expenses = Net business income. That net income is then included in your personal T1 income tax return.
You complete a separate T2125 for each business activity you operate.
Who needs to complete T2125?
You generally need to file if
- You operate a sole proprietorship.
- You are a freelancer or independent contractor.
- You earn commission income.
- You drive for ride-share or delivery platforms.
- You sell products online.
- You provide professional services.
You typically do not use T2125 if
- You are incorporated (corporations file separate returns).
- You are only an employee receiving T4 income.
If you are unsure how self-employment works overall, see our Self-Employed Tax Guide Canada .
Step-by-step guide to completing T2125
Part 1 - Identification
- Business name (if applicable).
- Business address.
- Industry code (NAICS code).
- Business number (if registered for GST/HST).
- Internet business activities if you operate online.
Part 2 - Internet business activities
If your business earns income online (for example, Shopify, freelance web services, or digital products), you indicate that here so the CRA can classify the type of business you operate.
Part 3 - Income
- Report gross sales, fees, commissions, and professional income.
- Report all business income, even if it is not on slips.
- Do not deduct expenses here - this is total revenue before expenses.
Cost of goods sold (if you sell products)
- Opening inventory.
- Purchases during the year.
- Closing inventory.
This section helps determine profit when products are involved. It may not apply to service-only businesses.
Part 4 - Business expenses
You can generally report expenses that are reasonable and directly related to earning business income. Only the business-use portion is deductible.
Common categories
- Advertising and marketing
- Business taxes, fees, licenses, dues
- Insurance
- Interest and bank charges
- Office expenses and supplies
- Professional fees (accounting, legal)
Other common categories
- Rent
- Telephone and internet
- Utilities
- Travel
- Motor vehicle costs
- Management and administration fees
Motor vehicle expenses
If you use a vehicle for business, track total kilometres and business kilometres. Only the business-use percentage is deductible.
- Fuel
- Insurance
- Maintenance
- License fees
- Interest on car loan (business portion)
Keep a mileage log to support your claim.
Home office expenses
If you work from home, you may claim a portion of home expenses based on space and time used for business.
- Rent (portion)
- Utilities (portion)
- Internet (portion)
- Maintenance
Claims must be reasonable and supported by records.
Net business income
Total income minus total expenses equals net income (or loss). This net figure transfers to your personal tax return.
Equipment and CCA concept
Longer-term assets like equipment may be handled differently than day-to-day expenses. Track purchase details and keep receipts.
Sales tax notes
If registered for GST/HST or QST, track tax collected and input credits separately from expenses.
Subcontractors
Keep invoices or contracts for subcontractor or contract labour payments.
Video walkthrough: T2125 basics
A short video overview to help you understand the flow before you start filling the form.
Disclaimer: This video is for general information only and does not replace professional advice.
Real-life examples
Example 1 - Freelancer
Income: CAD 60,000. Expenses: CAD 12,000. Net income: CAD 48,000.
- Income section: CAD 60,000.
- Expenses section: CAD 12,000.
- Net income flows to T1.
Typical expenses: software, advertising, internet, laptop portion.
Example 2 - Ride-share driver (Quebec)
Income: CAD 55,000. Vehicle costs are tracked and reduced by the business-use percentage.
If registered for GST/QST, you must track sales tax collected and input credits separately.
Examples are simplified for education only.
Common T2125 mistakes
- XMixing personal and business expenses.
- XClaiming 100% of vehicle expenses.
- XNot keeping receipts.
- XForgetting to report small income amounts.
- XIgnoring GST/HST registration threshold.
- XWaiting until June to organize records.
- XNot separating multiple business activities.
Good bookkeeping throughout the year makes filing much easier.
Filing deadlines for self-employed
Self-employed individuals generally have a later filing deadline (typically June 15).
But you must still pay any tax owing by April 30 to avoid interest.
Filing and payment deadlines are not always the same, so always confirm current CRA dates.
Official CRA deadline details: CRA important dates
Best tools to make T2125 easier
Filing T2125 manually can be confusing. These tools and guides help you stay organized and reduce errors.
Best Tax Software in Canada
Complete T2125 step-by-step and transfer values to your return accurately.
See tax softwareBest Accounting Software in Canada
Track income and expenses year-round so your numbers are ready at tax time.
See accounting softwareSelf-Employed Tax Installments Canada
Installments explained with planning tips and a risk checker.
Read the installments guideCPP vs QPP for Self-Employed
Planning-focused guide to CPP/QPP basics and cash flow.
Read the CPP/QPP guideSelf-Employed Vehicle Expenses Canada
Business-use rules, mileage logs, and proof to keep.
Read the vehicle guideSelf-Employed Tax Guide Canada
A broader overview of T2125, GST/HST, QST, and filing tips.
Read the self-employed guideHow to File GST/HST & QST in Canada
Sales tax basics and filing steps for Canada and Quebec.
Read the GST/HST/QST guideUsing accounting software during the year reduces stress in April.
Final checklist before you file
Organize all income records.
Separate business expenses.
Calculate vehicle business-use percentage.
Review GST/HST or QST status.
Confirm filing vs payment deadlines.
Choose appropriate tax software.
FAQ - T2125 Canada
Do I need to file T2125 if I made small income?
If you earned self-employment income, you generally need to report it, even if it is small.
What if I have multiple businesses?
You typically complete a separate T2125 for each business activity.
Do I need receipts?
Yes. Keep documentation to support income and expense claims.
What if I made a loss?
A legitimate business loss may reduce other taxable income, but it must be documented.
Can I claim my entire vehicle?
Only the business-use portion is deductible. Keep a mileage log.
Is T2125 separate from T1?
T2125 is completed as part of your personal return and the net income flows to your T1.
What expenses can I claim?
Expenses should be reasonable and directly related to earning business income. Only the business portion is deductible.
Do I need to register for GST/HST?
Registration may be required once you exceed the small supplier threshold. Always confirm current CRA guidance.
How does net income affect my overall tax?
Net business income is included in your personal return and affects your overall tax calculation.