Business Income
Business-income terms for self-employment, professional income, sole proprietorship, and T2125 reporting.
This subsection covers the core Canadian tax terms that appear when income is earned outside a normal employee-payroll relationship.
What Belongs Here
Use this subsection when the question is about self-employed reporting, sole-proprietor activity, or the business-income language that later feeds into a personal return.
Best Starting Pages
Practical Reader Path
- Start with Business Income if you are still deciding what type of income you are looking at.
- Start with Professional Income if the work is tied to a professional practice and the tax vocabulary seems more specific than general business income.
- Start with Sole Proprietorship if the question is about structure and who actually reports the income.
- Move to Business Forms when the next question is which reporting form or statement is involved.
In this section
- Business Income
Business income is self-employment income reported from commercial activity after applying the relevant tax rules and records.
- Professional Income
Professional income is self-employment income earned in a profession and reported through the taxpayer's business-filing workflow.
- Sole Proprietorship
A sole proprietorship is a business structure in which the individual and the business are not separate personal income-tax filers.
Revised on Friday, April 24, 2026